Фиксация изменений

.gitignore

@@ -0,0 +1 @@
+.env

README.DB.STORY_PLAN.md

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+# План доработки БД для хранения контекста Story и метаданных RAG
+
+## Цель
+Зафиксировать проект миграции, который:
+- добавляет в таблицу чанков признаки артефакта (тип, источник, контекст),
+- вводит отдельный контур хранения инкремента по `story_id`,
+- не зависит от выбранного режима RAG (общий/сессионный/гибридный).
+
+## Границы
+- Документ описывает план и целевую схему.
+- Реализация SQL-миграций и backfill выполняется отдельным шагом после согласования.
+
+## 1) Метаданные чанков (RAG-слой)
+
+### 1.1. Что добавить
+Для таблицы `rag_chunks` (или эквивалента таблицы чанков) добавить поля:
+- `artifact_type` (`REQ|ARCH|API|DB|UI|CODE|OTHER`)
+- `path` (нормализованный относительный путь файла)
+- `section` (заголовок/логический раздел документа)
+- `doc_id` (стабильный идентификатор документа)
+- `doc_version` (версия документа/ревизия)
+- `owner` (ответственная команда/человек)
+- `system_component` (система/подсистема/компонент)
+- `last_modified` (время последнего изменения источника)
+- `staleness_score` (0..1, в первую очередь для `CODE`)
+
+### 1.2. Ограничения и индексы
+- `CHECK` для `artifact_type` и диапазона `staleness_score`.
+- Индексы:
+  - `(artifact_type)`
+  - `(doc_id, doc_version)`
+  - `(system_component)`
+  - `(path)`
+  - GIN/BTREE по потребности для фильтрации в retrieval.
+
+## 2) Контур Story (отдельно от чанков)
+
+### 2.1. Таблица `story_records`
+Карточка Story:
+- `story_id` (PK, строковый уникальный идентификатор)
+- `project_id` (идентификатор проекта/репозитория)
+- `title`
+- `status` (`draft|in_progress|review|done|archived`)
+- `baseline_commit_sha` (базовый снимок)
+- `snapshot_id` (опционально для session-RAG)
+- `created_at`, `updated_at`
+- `created_by`, `updated_by`
+
+Индексы:
+- `(project_id)`
+- `(status)`
+- `(updated_at)`
+
+### 2.2. Таблица `story_artifacts`
+Связь Story с артефактами изменений:
+- `id` (PK)
+- `story_id` (FK -> `story_records.story_id`)
+- `artifact_role` (`requirement|analysis|doc_change|test_model|note|decision|risk`)
+- `doc_id`
+- `doc_version`
+- `path`
+- `section`
+- `chunk_id` (nullable; ссылка на chunk если стабильно поддерживается)
+- `change_type` (`added|updated|removed|linked`)
+- `summary` (краткое описание изменения)
+- `source_ref` (ссылка/внешний id)
+- `created_at`
+- `created_by`
+
+Уникальность (черновик):
+- `UNIQUE(story_id, artifact_role, COALESCE(doc_id,''), COALESCE(path,''), COALESCE(section,''), COALESCE(change_type,''))`
+
+Индексы:
+- `(story_id, artifact_role)`
+- `(story_id, change_type)`
+- `(doc_id, doc_version)`
+- `(path)`
+
+### 2.3. Таблица `story_links`
+Связи Story с внешними сущностями и Story-to-Story:
+- `id` (PK)
+- `story_id` (FK)
+- `link_type` (`story|adr|ticket|pr|commit|doc|external`)
+- `target_ref` (идентификатор/ссылка)
+- `description`
+- `created_at`
+
+Индексы:
+- `(story_id, link_type)`
+- `(target_ref)`
+
+## 3) Почему `story_id` не в чанках
+- Один чанк может относиться к нескольким Story.
+- Чанки нестабильны при переиндексации.
+- Разделение слоев упрощает поддержку и не привязывает модель к типу RAG.
+
+Итог: связь Story и чанков/документов хранить в `story_artifacts`, а не в `rag_chunks`.
+
+## 4) Целевая модель RAG: Hybrid-Lite
+Выбранный вектор на текущем этапе: `Session-first + Shared Cache + Story Ledger`.
+
+### 4.1. Принципы
+- Рабочий retrieval выполняется из сессионного индекса (видит незакоммиченные изменения).
+- Общий кэш чанков/эмбеддингов используется только для ускорения индексации.
+- Источник правды по инкременту Story находится в Story-таблицах, а не в RAG-индексе.
+
+### 4.2. Что хранить дополнительно
+- `rag_blob_cache`: кэш файловых blob по `repo_id + blob_sha`.
+- `rag_chunk_cache`: кэш чанков/эмбеддингов, привязанный к `blob_sha`.
+- `rag_session_chunk_map`: привязка сессии к используемым chunk (чтобы retrieval был изолированным).
+- `session_artifacts`: временные артефакты сессии до появления `story_id` (late binding).
+
+### 4.3. Алгоритм индексации (delta-only)
+1. На старте сессии сканировать рабочее дерево и считать `blob_sha` для файлов индексации.
+2. Для каждого файла:
+   - `cache hit`: взять chunk/embedding из кэша и связать с текущей сессией.
+   - `cache miss`: выполнить chunk+embed и записать результат в кэш.
+3. Для retrieval использовать `rag_session_chunk_map` как первичный источник.
+4. При необходимости делать fallback к cache-scoped данным по `repo_id` (опционально, под флагом).
+
+### 4.4. Почему это подходит
+- Нет необходимости в сложном ACL общего RAG на уровне приложения.
+- Нет обязательной зависимости от ручного commit, индекс отражает локальные изменения.
+- Снижается время загрузки сессии за счет переиспользования эмбеддингов.
+- История Story не теряется и не зависит от режима RAG.
+
+### 4.5. Late binding `story_id` (целевой процесс)
+1. Аналитик запускает работу только со ссылкой на документ (без `story_id`).
+2. Агент обрабатывает задачу в `session-RAG` и сохраняет все изменения в `session_artifacts`.
+3. Аналитик вручную делает commit и указывает `story_id`.
+4. Вебхук на commit:
+   - извлекает `story_id` из commit metadata/message,
+   - обновляет репозиторный RAG,
+   - выполняет `bind session -> story`: переносит/привязывает `session_artifacts` к `story_artifacts`,
+   - фиксирует связь `story_id <-> commit_sha <-> changed_files`.
+5. Исходный документ аналитики тоже попадает в контекст Story ретроспективно, даже если изначально был без `story_id`.
+
+## 5) Черновик DDL (PostgreSQL)
+```sql
+-- 0. Enum-like checks можно заменить на справочники при необходимости
+
+-- A) Session artifacts (временный слой до появления story_id)
+CREATE TABLE IF NOT EXISTS session_artifacts (
+    id BIGSERIAL PRIMARY KEY,
+    session_id TEXT NOT NULL,
+    project_id TEXT NOT NULL,
+    artifact_role TEXT NOT NULL,
+    source_ref TEXT,
+    doc_id TEXT,
+    doc_version TEXT,
+    path TEXT,
+    section TEXT,
+    chunk_id TEXT,
+    change_type TEXT,
+    summary TEXT,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    created_by TEXT,
+    CONSTRAINT chk_session_artifact_role CHECK (artifact_role IN (
+        'analysis','doc_change','note','decision','risk','test_model'
+    )),
+    CONSTRAINT chk_session_change_type CHECK (change_type IS NULL OR change_type IN (
+        'added','updated','removed','linked'
+    ))
+);
+
+CREATE INDEX IF NOT EXISTS idx_session_artifacts_session ON session_artifacts(session_id);
+CREATE INDEX IF NOT EXISTS idx_session_artifacts_project ON session_artifacts(project_id);
+CREATE INDEX IF NOT EXISTS idx_session_artifacts_role ON session_artifacts(artifact_role);
+
+-- 1) Story records
+CREATE TABLE IF NOT EXISTS story_records (
+    story_id TEXT PRIMARY KEY,
+    project_id TEXT NOT NULL,
+    title TEXT,
+    status TEXT NOT NULL DEFAULT 'draft',
+    baseline_commit_sha TEXT,
+    snapshot_id TEXT,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    created_by TEXT,
+    updated_by TEXT,
+    CONSTRAINT chk_story_status CHECK (status IN (
+        'draft','in_progress','review','done','archived'
+    ))
+);
+
+CREATE INDEX IF NOT EXISTS idx_story_records_project ON story_records(project_id);
+CREATE INDEX IF NOT EXISTS idx_story_records_status ON story_records(status);
+CREATE INDEX IF NOT EXISTS idx_story_records_updated_at ON story_records(updated_at DESC);
+
+-- 2) Story artifacts
+CREATE TABLE IF NOT EXISTS story_artifacts (
+    id BIGSERIAL PRIMARY KEY,
+    story_id TEXT NOT NULL REFERENCES story_records(story_id) ON DELETE CASCADE,
+    artifact_role TEXT NOT NULL,
+    doc_id TEXT,
+    doc_version TEXT,
+    path TEXT,
+    section TEXT,
+    chunk_id TEXT,
+    change_type TEXT,
+    summary TEXT,
+    source_ref TEXT,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    created_by TEXT,
+    CONSTRAINT chk_story_artifact_role CHECK (artifact_role IN (
+        'requirement','analysis','doc_change','test_model','note','decision','risk'
+    )),
+    CONSTRAINT chk_story_change_type CHECK (change_type IS NULL OR change_type IN (
+        'added','updated','removed','linked'
+    ))
+);
+
+CREATE INDEX IF NOT EXISTS idx_story_artifacts_story_role ON story_artifacts(story_id, artifact_role);
+CREATE INDEX IF NOT EXISTS idx_story_artifacts_story_change ON story_artifacts(story_id, change_type);
+CREATE INDEX IF NOT EXISTS idx_story_artifacts_doc ON story_artifacts(doc_id, doc_version);
+CREATE INDEX IF NOT EXISTS idx_story_artifacts_path ON story_artifacts(path);
+
+-- Вариант уникальности можно уточнить после согласования процессов
+
+-- 3) Story links
+CREATE TABLE IF NOT EXISTS story_links (
+    id BIGSERIAL PRIMARY KEY,
+    story_id TEXT NOT NULL REFERENCES story_records(story_id) ON DELETE CASCADE,
+    link_type TEXT NOT NULL,
+    target_ref TEXT NOT NULL,
+    description TEXT,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    CONSTRAINT chk_story_link_type CHECK (link_type IN (
+        'story','adr','ticket','pr','commit','doc','external'
+    ))
+);
+
+CREATE INDEX IF NOT EXISTS idx_story_links_story_type ON story_links(story_id, link_type);
+CREATE INDEX IF NOT EXISTS idx_story_links_target_ref ON story_links(target_ref);
+```
+
+## 6) План внедрения (после согласования)
+1. Подтвердить перечень полей и enum-значений.
+2. Подготовить SQL-миграцию `Vxxx__story_context.sql`.
+3. Обновить bootstrap/инициализацию схемы.
+4. Обновить репозитории для `story_records/story_artifacts/story_links`.
+5. Добавить таблицу и репозиторий `session_artifacts` (session-scoped артефакты без `story_id`).
+6. Добавить запись session-артефактов в оркестраторе во время работы аналитика.
+7. Добавить webhook-обработчик `bind session -> story` при появлении commit со `story_id`.
+8. Добавить API/сервисный метод `get_story_context(story_id)` для повторного входа в Story.
+9. Добавить тесты:
+   - unit на репозитории,
+   - интеграционные на happy-path записи/чтения,
+   - регресс на отсутствие зависимости от типа RAG.
+10. Добавить миграцию для `rag_blob_cache/rag_chunk_cache/rag_session_chunk_map`.
+11. Внедрить `delta-only` индексацию для session-RAG с переиспользованием кэша.
+
+## 7) Открытые вопросы
+- Нужен ли отдельный справочник для `artifact_type`, `artifact_role`, `link_type`.
+- Что считать `doc_version`: semver, дата, commit, hash файла.
+- Нужна ли soft-delete политика для Story.
+- Требуется ли аудит (кто/когда менял `summary` и связи).
+- Какой уровень обязательности `chunk_id` (опционален по умолчанию).
+- Нужна ли TTL/очистка для `rag_blob_cache/rag_chunk_cache`.
+- Делать ли fallback к репозиторному кэшу по умолчанию или только при explicit-флаге.
+- Как определять соответствие `session_id` и commit в webhook (1:1, последний активный, explicit token).
+- Как долго хранить `session_artifacts` до bind/cleanup.
+
+## 8) Критерии готовности
+- По `story_id` можно восстановить инкремент без исходной сессии.
+- История изменений не теряется при переиндексации RAG.
+- Аналитик и тестировщик используют один `story_id` как общий ключ контекста.
+- Схема работает при любом выбранном режиме RAG.
+- Session-RAG поднимается быстрее за счет cache hit по неизмененным файлам.
+- Артефакты аналитика, созданные до появления `story_id`, корректно попадают в Story после commit/webhook bind.

README.md

@@ -1,7 +1,109 @@
-# Agent Backend MVP
+# Агент для работы с проектной документацией
 
-## Run (Local)
+## 1. Общее описание
+Приложение представляет собой backend агентного режима для работы с документацией и кодом проекта.
 
+Система решает следующие задачи:
+- индексирует локальную копию проекта в `rag_session` и использует ее как основной рабочий контекст пользователя;
+- принимает webhook коммитов репозитория в `rag_repo` и фиксирует контекст изменений по `story_id`;
+- ускоряет построение `rag_session` за счет переиспользования кэша чанков и эмбеддингов из `rag_repo`;
+- обрабатывает пользовательские запросы через `chat`, `agent`, оркестратор и специализированные графы;
+- сохраняет quality-метрики, Story-контекст и артефакты сессии в PostgreSQL.
+
+Ключевая идея архитектуры:
+- `rag_session` отвечает за пользовательскую рабочую сессию и всегда остается основным источником retrieval;
+- `rag_repo` не участвует напрямую в пользовательском ответе, а служит фоновым источником кэша и контекста коммитов;
+- `story_id` связывает изменения аналитика, документацию и последующую работу тестировщика.
+
+## 2. Архитектура
+```mermaid
+flowchart LR
+    User["Пользователь"]
+    Git["Git репозиторий\n(Gitea / Bitbucket)"]
+    Chat["Модуль chat"]
+    Agent["Модуль agent"]
+    RagSession["Модуль rag_session"]
+    RagRepo["Модуль rag_repo"]
+    Shared["Модуль shared"]
+    DB["PostgreSQL + pgvector"]
+    Giga["GigaChat API"]
+
+    User --> Chat
+    Chat --> Agent
+    Agent --> RagSession
+    Agent --> Shared
+    RagSession --> Shared
+    RagRepo --> Shared
+    Chat --> DB
+    Agent --> DB
+    RagSession --> DB
+    RagRepo --> DB
+    RagSession --> Giga
+    Agent --> Giga
+    Git --> RagRepo
+    RagRepo -.кэш и контекст коммитов.-> RagSession
+```
+
+Кратко по ролям модулей:
+- `chat` — внешний API чата, фоновые задачи, SSE события, диалоги.
+- `agent` — роутер интентов, оркестратор, графы, tools, генерация ответа и changeset.
+- `rag_session` — создание и сопровождение пользовательского RAG индекса по локальным файлам.
+- `rag_repo` — прием webhook коммитов, определение `story_id`, фиксация контекста коммита и заполнение repo-cache.
+- `shared` — инфраструктурный слой: БД, retry, event bus, GigaChat client, настройки.
+
+## 3. Типичный флоу
+```mermaid
+sequenceDiagram
+    actor User as Пользователь
+    participant Git as Git репозиторий
+    participant RagRepo as Модуль rag_repo
+    participant DB as PostgreSQL
+    participant RagSession as Модуль rag_session
+    participant Chat as Модуль chat
+    participant Agent as Модуль agent
+
+    Note over User,RagSession: Первая рабочая сессия: кэша репозитория еще нет
+    User->>RagSession: Создание rag_session и загрузка файлов проекта
+    RagSession->>DB: Проверка cache hit/miss
+    DB-->>RagSession: Кэш пуст
+    RagSession->>RagSession: Чанкинг и расчет embeddings без repo-cache
+    RagSession->>DB: Сохранение rag_chunks и rag_index_jobs
+    User->>Chat: Отправка запроса в чат
+    Chat->>Agent: Передача задачи
+    Agent->>RagSession: Retrieval контекста
+    RagSession->>DB: Чтение rag_chunks
+    DB-->>RagSession: Релевантные чанки
+    RagSession-->>Agent: Контекст
+    Agent-->>Chat: Ответ / changeset
+
+    Note over User,Git: Пользователь вручную делает commit и push
+    Git->>RagRepo: Webhook push
+    RagRepo->>RagRepo: Определение provider, commit_sha, changed_files, story_id
+    RagRepo->>DB: Запись story_records/story_links/story_artifacts
+    RagRepo->>DB: Запись rag_blob_cache/rag_chunk_cache/rag_session_chunk_map
+
+    Note over User,RagSession: Вторая рабочая сессия: repo-cache уже существует
+    User->>RagSession: Создание новой rag_session и загрузка файлов проекта
+    RagSession->>DB: Проверка cache hit/miss
+    DB-->>RagSession: Найдены cache hit по части файлов
+    RagSession->>RagSession: Переиспользование чанков из rag_repo cache
+    RagSession->>RagSession: Пересчет embeddings только для cache miss файлов
+    RagSession->>DB: Сохранение rag_chunks, rag_session_chunk_map, rag_index_jobs
+    User->>Chat: Новый запрос
+    Chat->>Agent: Передача задачи
+    Agent->>RagSession: Retrieval по новой сессии
+    RagSession-->>Agent: Контекст из session-RAG
+    Agent-->>Chat: Ответ / changeset
+```
+
+Что важно в этом сценарии:
+- первый запуск индексации может быть полностью без кэша;
+- после коммита `rag_repo` фиксирует контекст изменений и наполняет cache-таблицы;
+- во второй и последующих сессиях `rag_session` использует `cache_hit_files`, чтобы уменьшить объем новых embeddings.
+
+## 4. Инструкции к запуску
+
+### Локальный запуск
 ```bash
 python3 -m venv .venv
 source .venv/bin/activate
@@ -9,135 +111,51 @@ pip install -r requirements.txt
 uvicorn app.main:app --reload --port 15000
 ```
 
-## Run (Docker Compose)
+### Запуск через Docker Compose
-
+1. Создать `.env` на основе примера:
-1. Fill env values:
-
 ```bash
 cp .env.example .env
 ```
 
-Set `GIGACHAT_TOKEN` in `.env`.
+2. Заполнить как минимум `GIGACHAT_TOKEN`.
-
-2. Start:
 
+3. Запустить сервисы:
 ```bash
-docker compose up --build
+docker compose up -d --build
 ```
 
-- Public API: `http://localhost:15000/api/*`
+4. Проверить доступность backend:
-- PostgreSQL + pgvector runs in `db` service on `localhost:5432`
-
-Stop:
-
 ```bash
-docker compose down
+curl http://localhost:15000/health
 ```
 
-## Public API
+Ожидаемый ответ:
+```json
+{"status":"ok"}
+```
 
-- `POST /api/rag/sessions`
+### Основные адреса
-- `POST /api/rag/sessions/{rag_session_id}/changes`
+- Backend API: `http://localhost:15000`
-- `GET /api/rag/sessions/{rag_session_id}/jobs/{index_job_id}`
+- PostgreSQL + pgvector: `localhost:5432`
-- `GET /api/rag/sessions/{rag_session_id}/jobs/{index_job_id}/events` (SSE progress)
+- Webhook репозитория: `POST /internal/rag-repo/webhook`
-- `POST /api/chat/dialogs`
-- `POST /api/chat/messages`
-- `GET /api/tasks/{task_id}`
-- `GET /api/events?task_id=...`
-- `POST /api/index/snapshot`
-- `POST /api/index/changes`
-- `GET /api/index/jobs/{index_job_id}`
-- `GET /api/index/jobs/{index_job_id}/events` (legacy SSE progress)
 
-RAG indexing SSE events (`/api/rag/sessions/{rag_session_id}/jobs/{index_job_id}/events`):
+### Базовый сценарий проверки
-- `index_status`: `{"index_job_id","status","total_files",...}`
+1. Создать `rag_session` через `POST /api/rag/sessions`.
-- `index_progress`: `{"index_job_id","current_file_index","total_files","processed_files","current_file_path","current_file_name"}`
+2. Дождаться завершения index-job через `GET /api/rag/sessions/{rag_session_id}/jobs/{index_job_id}`.
-- `terminal`: `{"index_job_id","status":"done|error",...}` (final event; stream closes after this event)
+3. Создать диалог через `POST /api/chat/dialogs`.
+4. Отправить сообщение через `POST /api/chat/messages`.
+5. Настроить webhook репозитория на `POST /internal/rag-repo/webhook`.
+6. Сделать commit с `story_id` в сообщении, например `FEAT-1 ...`.
+7. Проверить заполнение таблиц:
+   - `story_records`, `story_links`, `story_artifacts`
+   - `rag_blob_cache`, `rag_chunk_cache`, `rag_session_chunk_map`
+8. Во второй сессии индексации проверить поля job-статуса:
+   - `indexed_files`
+   - `cache_hit_files`
+   - `cache_miss_files`
 
-## Session Model
+### Полезные замечания
-
+- Текущая chat-модель: `GigaChat`.
-- `rag_session_id`: identifies indexed project chunks in RAG.
+- Основной retrieval всегда идет из `rag_session`.
-- `dialog_session_id`: identifies one independent dialog context within a `rag_session_id`.
+- `rag_repo` используется как фоновый источник кэша и контекста коммитов.
-- Multiple dialogs can share one `rag_session_id`.
+- Если в webhook не найден `story_id`, commit-контекст Story не будет привязан, но cache-таблицы все равно должны наполняться.
-
-Recommended flow:
-1. call `POST /api/rag/sessions` after project selection;
-2. wait for indexing job completion;
-3. call `POST /api/chat/dialogs` with `rag_session_id`;
-4. call `POST /api/chat/messages` with `dialog_session_id` + `rag_session_id`.
-
-`/api/chat/messages` supports explicit routing hint:
-- `mode: "auto" | "project_qa" | "project_edits" | "docs_generation" | "qa"`
-- Legacy aliases are still accepted: `code_change`, `analytics_review`.
-
-## Persistence
-
-Persisted in PostgreSQL:
-- `rag_sessions`, `rag_chunks`, `rag_index_jobs`
-- `dialog_sessions`, `chat_messages`
-- `router_context` (agent routing context per dialog session)
-- LangGraph checkpoints via `PostgresSaver` (thread id = `dialog_session_id`)
-
-Notes:
-- RAG vectors are stored in `pgvector` column (`rag_chunks.embedding`).
-- Agent context/history is restored after restart for same `dialog_session_id`.
-
-## Agent Runtime
-
-- Router + context store (`app/modules/agent/engine/router/*`)
-- LangGraph flow execution (`app/modules/agent/engine/graphs/*`)
-- Route selection:
-  - `default/general` -> answer flow
-  - `project/qa` -> answer flow
-  - `project/edits` -> conservative changeset flow for non-code file updates
-  - `docs/generation` -> answer and/or changeset flow
-- LLM provider: GigaChat (`chat/completions`)
-- Prompts for graph LLM nodes: `app/modules/agent/prompts/*.txt`
-  - `general_answer.txt`
-  - `project_answer.txt`
-  - `project_edits_plan.txt`
-  - `project_edits_apply.txt`
-  - `project_edits_self_check.txt`
-  - `docs_generation.txt`
-  - `docs_execution_summary.txt`
-
-## Modules Structure
-
-- `app/modules/chat/*`: chat API, tasks, session-scoped orchestration, event streaming.
-- `app/modules/agent/*`: intent router, LangGraph flows, confluence integration, changeset validation.
-- `app/modules/rag/*`: indexing API/jobs and retrieval service.
-- `app/modules/shared/*`: cross-module primitives (event bus, retry, idempotency).
-- `app/modules/contracts.py`: fixed inter-module contracts (`AgentRunner`, `RagRetriever`, `RagIndexer`).
-
-## Module Boundaries
-
-- `chat` depends on contract `AgentRunner`, but not on concrete `agent` internals.
-- `agent` depends on contract `RagRetriever`, but not on `rag` indexing internals.
-- `rag` exposes public/internal API and service implementation.
-- wiring is centralized in `app/modules/application.py`.
-
-## Internal API (for integration)
-
-- `POST /internal/rag/index/snapshot`
-- `POST /internal/rag/index/changes`
-- `GET /internal/rag/index/jobs/{index_job_id}`
-- `POST /internal/rag/retrieve`
-- `POST /internal/tools/confluence/fetch`
-
-## Environment
-
-- `.env.example` contains full list of parameters.
-- `.env` is used by Docker Compose for `db` and `backend`.
-- `GIGACHAT_TOKEN`: Basic credentials for OAuth exchange (required for LLM/embeddings).
-- `DATABASE_URL`: PostgreSQL DSN, default `postgresql+psycopg://agent:agent@db:5432/agent`.
-- `GIGACHAT_AUTH_URL`: default `https://ngw.devices.sberbank.ru:9443/api/v2/oauth`.
-- `GIGACHAT_API_URL`: default `https://gigachat.devices.sberbank.ru/api/v1`.
-- `GIGACHAT_SCOPE`: default `GIGACHAT_API_PERS`.
-- `GIGACHAT_SSL_VERIFY`: `true|false`, default `true`.
-- `GIGACHAT_MODEL`: chat model name, default `GigaChat`.
-- `GIGACHAT_EMBEDDING_MODEL`: embedding model name, default `Embeddings`.
-- `AGENT_PROMPTS_DIR`: optional override path for prompt files.
-
-Troubleshooting:
-- If indexing shows `failed_files > 0` and `indexed_files = 0`, check backend logs for TLS/auth errors to GigaChat.
-- In corporate environments with custom TLS chain, set `GIGACHAT_SSL_VERIFY=false` (or install proper CA certs in container).

app/core/logging_setup.py

@@ -0,0 +1,49 @@
+from __future__ import annotations
+
+import logging
+import re
+
+
+class ScrubbingFormatter(logging.Formatter):
+    _KEY_VALUE_PATTERNS = (
+        re.compile(r"\b([A-Za-z_][A-Za-z0-9_]*id)=([^\s,]+)"),
+        re.compile(r"\b([A-Za-z_][A-Za-z0-9_]*_key)=([^\s,]+)"),
+    )
+    _TEXT_PATTERNS = (
+        re.compile(r"\b(index|task|dialog|rag|session|plan|artifact|evidence|symbol|edge|entry) id\b[:=]\s*([^\s,]+)", re.IGNORECASE),
+    )
+
+    def format(self, record: logging.LogRecord) -> str:
+        rendered = super().format(record)
+        scrubbed = self._scrub(rendered).rstrip("\n")
+        return scrubbed + "\n"
+
+    def _scrub(self, message: str) -> str:
+        output = message
+        for pattern in self._KEY_VALUE_PATTERNS:
+            output = pattern.sub(self._replace_key_value, output)
+        for pattern in self._TEXT_PATTERNS:
+            output = pattern.sub(self._replace_text, output)
+        return output
+
+    def _replace_key_value(self, match: re.Match[str]) -> str:
+        return f"{match.group(1)}=<redacted>"
+
+    def _replace_text(self, match: re.Match[str]) -> str:
+        return f"{match.group(1)} id=<redacted>"
+
+
+def configure_logging() -> None:
+    logging.basicConfig(
+        level=logging.WARNING,
+        force=True,
+        format="%(levelname)s:%(name)s:%(message)s",
+    )
+    root_logger = logging.getLogger()
+    root_logger.setLevel(logging.WARNING)
+    formatter = ScrubbingFormatter("%(levelname)s:%(name)s:%(message)s")
+    for handler in root_logger.handlers:
+        handler.setFormatter(formatter)
+    logging.getLogger("uvicorn").setLevel(logging.WARNING)
+    logging.getLogger("uvicorn.error").setLevel(logging.WARNING)
+    logging.getLogger("uvicorn.access").setLevel(logging.WARNING)

app/main.py

@@ -1,10 +1,20 @@
+import logging
+
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 
+from app.core.logging_setup import configure_logging
 from app.core.error_handlers import register_error_handlers
 from app.modules.application import ModularApplication
 
 
+def _configure_logging() -> None:
+    configure_logging()
+
+
+_configure_logging()
+
+
 def create_app() -> FastAPI:
     app = FastAPI(title="Agent Backend MVP", version="0.1.0")
     modules = ModularApplication()
@@ -18,8 +28,9 @@ def create_app() -> FastAPI:
     )
 
     app.include_router(modules.chat.public_router())
-    app.include_router(modules.rag.public_router())
+    app.include_router(modules.rag_session.public_router())
-    app.include_router(modules.rag.internal_router())
+    app.include_router(modules.rag_session.internal_router())
+    app.include_router(modules.rag_repo.internal_router())
     app.include_router(modules.agent.internal_router())
 
     register_error_handlers(app)

app/modules/agent/README.md

@@ -0,0 +1,91 @@
+# Модуль agent
+
+## 1. Функции модуля
+- Оркестрация выполнения пользовательского запроса поверх роутера интентов и графов.
+- Формирование `TaskSpec`, запуск оркестратора шагов и сборка финального результата.
+- Реализация необходимых для агента tools и их интеграция с остальной логикой выполнения.
+- Сохранение quality-метрик и session-артефактов для последующей привязки к Story.
+
+## 2. Диаграмма классов и взаимосвязей
+```mermaid
+classDiagram
+    class AgentModule
+    class GraphAgentRuntime
+    class OrchestratorService
+    class TaskSpecBuilder
+    class StorySessionRecorder
+    class StoryContextRepository
+    class ConfluenceService
+    class AgentRepository
+
+    AgentModule --> GraphAgentRuntime
+    AgentModule --> ConfluenceService
+    AgentModule --> StorySessionRecorder
+    StorySessionRecorder --> StoryContextRepository
+    GraphAgentRuntime --> OrchestratorService
+    GraphAgentRuntime --> TaskSpecBuilder
+    GraphAgentRuntime --> AgentRepository
+    GraphAgentRuntime --> ConfluenceService
+```
+
+## 3. Описание классов
+- `AgentModule`: собирает runtime и публикует внутренние tools-роуты.
+  Методы: `__init__` — связывает зависимости модуля; `internal_router` — регистрирует internal API tools.
+- `GraphAgentRuntime`: основной исполнитель агентного запроса.
+  Методы: `run` — выполняет цикл route -> retrieval -> orchestration -> ответ/changeset.
+- `OrchestratorService`: управляет планом шагов и выполнением quality gates.
+  Методы: `run` — строит, валидирует и исполняет execution plan.
+- `TaskSpecBuilder`: формирует спецификацию задачи для оркестратора.
+  Методы: `build` — собирает `TaskSpec` из route, контекстов и ограничений.
+- `ProjectQaConversationGraphFactory`, `ProjectQaClassificationGraphFactory`, `ProjectQaRetrievalGraphFactory`, `ProjectQaAnalysisGraphFactory`, `ProjectQaAnswerGraphFactory`: набор маленьких graph-исполнителей для `project/qa`.
+  Роли: нормализация запроса; классификация project-question; поздний retrieval из `RAG`; анализ code/docs контекста; сборка финального ответа.
+- `StorySessionRecorder`: пишет session-scoped артефакты для последующего bind к Story.
+  Методы: `record_run` — сохраняет входные источники и выходные артефакты сессии.
+- `StoryContextRepository`: репозиторий Story-контекста и его связей.
+  Методы: `record_story_commit` — фиксирует commit-контекст Story; `upsert_story` — создает/обновляет карточку Story; `add_session_artifact` — добавляет session-артефакт; `bind_session_to_story` — переносит артефакты сессии в Story; `add_artifact` — добавляет версионный Story-артефакт; `get_story_context` — возвращает агрегированный контекст Story.
+- `ConfluenceService`: tool для загрузки страницы по URL.
+  Методы: `fetch_page` — валидирует URL и возвращает нормализованный payload страницы.
+- `AgentRepository`: хранение router-контекста и quality-метрик.
+  Методы: `ensure_tables` — создает таблицы модуля; `get_router_context` — читает контекст маршрутизации; `update_router_context` — обновляет историю диалога и last-route; `save_quality_metrics` — сохраняет метрики качества; `get_quality_metrics` — читает историю метрик.
+
+## 4. Сиквенс-диаграммы API
+
+### POST /internal/tools/confluence/fetch
+Назначение: загружает страницу Confluence по URL и возвращает ее контент для дальнейшего использования в сценариях агента.
+```mermaid
+sequenceDiagram
+    participant Router as AgentModule.APIRouter
+    participant Confluence as ConfluenceService
+
+    Router->>Confluence: fetch_page(url)
+    Confluence-->>Router: page(content_markdown, metadata)
+```
+
+### `project/qa` reasoning flow
+Назначение: оркестратор планирует шаги, а каждый шаг исполняется отдельным graph. Retrieval вызывается поздно, внутри шага `context_retrieval`.
+```mermaid
+sequenceDiagram
+    participant Runtime as GraphAgentRuntime
+    participant Orch as OrchestratorService
+    participant G1 as conversation_understanding
+    participant G2 as question_classification
+    participant G3 as context_retrieval
+    participant Rag as RagService
+    participant G4 as context_analysis
+    participant G5 as answer_composition
+
+    Runtime->>Orch: run(task)
+    Orch->>G1: execute
+    G1-->>Orch: resolved_request
+    Orch->>G2: execute
+    G2-->>Orch: question_profile
+    Orch->>G3: execute
+    G3->>Rag: retrieve(query)
+    Rag-->>G3: rag_items
+    G3-->>Orch: source_bundle
+    Orch->>G4: execute
+    G4-->>Orch: analysis_brief
+    Orch->>G5: execute
+    G5-->>Orch: final_answer
+    Orch-->>Runtime: final_answer
+```

app/modules/agent/engine/graphs/__init__.py

@@ -1,11 +1,51 @@
-from app.modules.agent.engine.graphs.base_graph import BaseGraphFactory
-from app.modules.agent.engine.graphs.docs_graph import DocsGraphFactory
-from app.modules.agent.engine.graphs.project_edits_graph import ProjectEditsGraphFactory
-from app.modules.agent.engine.graphs.project_qa_graph import ProjectQaGraphFactory
-
 __all__ = [
     "BaseGraphFactory",
     "DocsGraphFactory",
+    "ProjectQaAnalysisGraphFactory",
+    "ProjectQaAnswerGraphFactory",
+    "ProjectQaClassificationGraphFactory",
+    "ProjectQaConversationGraphFactory",
     "ProjectEditsGraphFactory",
     "ProjectQaGraphFactory",
+    "ProjectQaRetrievalGraphFactory",
 ]
+
+
+def __getattr__(name: str):
+    if name == "BaseGraphFactory":
+        from app.modules.agent.engine.graphs.base_graph import BaseGraphFactory
+
+        return BaseGraphFactory
+    if name == "DocsGraphFactory":
+        from app.modules.agent.engine.graphs.docs_graph import DocsGraphFactory
+
+        return DocsGraphFactory
+    if name == "ProjectQaConversationGraphFactory":
+        from app.modules.agent.engine.graphs.project_qa_step_graphs import ProjectQaConversationGraphFactory
+
+        return ProjectQaConversationGraphFactory
+    if name == "ProjectQaClassificationGraphFactory":
+        from app.modules.agent.engine.graphs.project_qa_step_graphs import ProjectQaClassificationGraphFactory
+
+        return ProjectQaClassificationGraphFactory
+    if name == "ProjectQaRetrievalGraphFactory":
+        from app.modules.agent.engine.graphs.project_qa_step_graphs import ProjectQaRetrievalGraphFactory
+
+        return ProjectQaRetrievalGraphFactory
+    if name == "ProjectQaAnalysisGraphFactory":
+        from app.modules.agent.engine.graphs.project_qa_step_graphs import ProjectQaAnalysisGraphFactory
+
+        return ProjectQaAnalysisGraphFactory
+    if name == "ProjectQaAnswerGraphFactory":
+        from app.modules.agent.engine.graphs.project_qa_step_graphs import ProjectQaAnswerGraphFactory
+
+        return ProjectQaAnswerGraphFactory
+    if name == "ProjectEditsGraphFactory":
+        from app.modules.agent.engine.graphs.project_edits_graph import ProjectEditsGraphFactory
+
+        return ProjectEditsGraphFactory
+    if name == "ProjectQaGraphFactory":
+        from app.modules.agent.engine.graphs.project_qa_graph import ProjectQaGraphFactory
+
+        return ProjectQaGraphFactory
+    raise AttributeError(name)

app/modules/agent/engine/graphs/base_graph.py

@@ -1,9 +1,13 @@
+import logging
+
 from langgraph.graph import END, START, StateGraph
 
 from app.modules.agent.engine.graphs.progress import emit_progress_sync
 from app.modules.agent.llm import AgentLlmService
 from app.modules.agent.engine.graphs.state import AgentGraphState
 
+LOGGER = logging.getLogger(__name__)
+
 
 class BaseGraphFactory:
     def __init__(self, llm: AgentLlmService) -> None:
@@ -31,7 +35,13 @@ class BaseGraphFactory:
             stage="graph.default.context.done",
             message="Контекст собран, перехожу к формированию ответа.",
         )
-        return {"rag_context": rag, "confluence_context": conf}
+        result = {"rag_context": rag, "confluence_context": conf}
+        LOGGER.warning(
+            "graph step result: graph=default step=context rag_len=%s confluence_len=%s",
+            len(rag or ""),
+            len(conf or ""),
+        )
+        return result
 
     def _answer_node(self, state: AgentGraphState) -> dict:
         emit_progress_sync(
@@ -49,10 +59,15 @@ class BaseGraphFactory:
                 f"Confluence context:\n{conf}",
             ]
         )
-        answer = self._llm.generate("general_answer", user_input)
+        answer = self._llm.generate("general_answer", user_input, log_context="graph.default.answer")
         emit_progress_sync(
             state,
             stage="graph.default.answer.done",
             message="Черновик ответа подготовлен.",
         )
-        return {"answer": answer}
+        result = {"answer": answer}
+        LOGGER.warning(
+            "graph step result: graph=default step=answer answer_len=%s",
+            len(answer or ""),
+        )
+        return result

app/modules/agent/engine/graphs/docs_graph_logic.py

@@ -52,7 +52,7 @@ class DocsContextAnalyzer:
                 f"Detected documentation candidates:\n{snippets}",
             ]
         )
-        raw = self._llm.generate("docs_detect", user_input)
+        raw = self._llm.generate("docs_detect", user_input, log_context="graph.docs.detect_existing_docs")
         exists = self.parse_bool_marker(raw, "exists", default=True)
         summary = self.parse_text_marker(raw, "summary", default="Documentation files detected.")
         return {"existing_docs_detected": exists, "existing_docs_summary": summary}
@@ -71,7 +71,7 @@ class DocsContextAnalyzer:
                 f"Existing docs summary:\n{state.get('existing_docs_summary', '')}",
             ]
         )
-        raw = self._llm.generate("docs_strategy", user_input)
+        raw = self._llm.generate("docs_strategy", user_input, log_context="graph.docs.decide_strategy")
         strategy = self.parse_text_marker(raw, "strategy", default="").lower()
         if strategy not in {"incremental_update", "from_scratch"}:
             strategy = "incremental_update" if state.get("existing_docs_detected", False) else "from_scratch"
@@ -260,7 +260,7 @@ class DocsContentComposer:
                 f"Examples bundle:\n{state.get('rules_bundle', '')}",
             ]
         )
-        plan = self._llm.generate("docs_plan_sections", user_input)
+        plan = self._llm.generate("docs_plan_sections", user_input, log_context="graph.docs.plan_incremental_changes")
         return {
             "doc_plan": plan,
             "target_path": target_path,
@@ -279,7 +279,7 @@ class DocsContentComposer:
                 f"Examples bundle:\n{state.get('rules_bundle', '')}",
             ]
         )
-        plan = self._llm.generate("docs_plan_sections", user_input)
+        plan = self._llm.generate("docs_plan_sections", user_input, log_context="graph.docs.plan_new_document")
         return {"doc_plan": plan, "target_path": target_path, "target_file_content": "", "target_file_hash": ""}
 
     def generate_doc_content(self, state: AgentGraphState) -> dict:
@@ -294,7 +294,7 @@ class DocsContentComposer:
                 f"Examples bundle:\n{state.get('rules_bundle', '')}",
             ]
         )
-        raw = self._llm.generate("docs_generation", user_input)
+        raw = self._llm.generate("docs_generation", user_input, log_context="graph.docs.generate_doc_content")
         bundle = self._bundle.parse_docs_bundle(raw)
         if bundle:
             first_content = str(bundle[0].get("content", "")).strip()
@@ -369,7 +369,7 @@ class DocsContentComposer:
                 f"Generated document:\n{generated}",
             ]
         )
-        raw = self._llm.generate("docs_self_check", user_input)
+        raw = self._llm.generate("docs_self_check", user_input, log_context="graph.docs.self_check")
         passed = DocsContextAnalyzer.parse_bool_marker(raw, "pass", default=False)
         feedback = DocsContextAnalyzer.parse_text_marker(raw, "feedback", default="No validation feedback provided.")
         return {"validation_attempts": attempts, "validation_passed": passed, "validation_feedback": feedback}
@@ -379,7 +379,7 @@ class DocsContentComposer:
         bundle = state.get("generated_docs_bundle", []) or []
         strategy = state.get("docs_strategy", "from_scratch")
         if strategy == "from_scratch" and not self._bundle.bundle_has_required_structure(bundle):
-            LOGGER.warning(
+            LOGGER.info(
                 "build_changeset fallback bundle used: strategy=%s bundle_items=%s",
                 strategy,
                 len(bundle),
@@ -452,7 +452,11 @@ class DocsContentComposer:
             ]
         )
         try:
-            summary = self._llm.generate("docs_execution_summary", user_input).strip()
+            summary = self._llm.generate(
+                "docs_execution_summary",
+                user_input,
+                log_context="graph.docs.summarize_result",
+            ).strip()
         except Exception:
             summary = ""
         if not summary:

app/modules/agent/engine/graphs/project_edits_contract.py

@@ -0,0 +1,171 @@
+import re
+from dataclasses import dataclass, field
+
+
+@dataclass
+class BlockContract:
+    type: str
+    max_changed_lines: int = 6
+    start_anchor: str = ""
+    end_anchor: str = ""
+    old_line: str = ""
+
+    def as_dict(self) -> dict:
+        return {
+            "type": self.type,
+            "max_changed_lines": self.max_changed_lines,
+            "start_anchor": self.start_anchor,
+            "end_anchor": self.end_anchor,
+            "old_line": self.old_line,
+        }
+
+
+@dataclass
+class FileEditContract:
+    path: str
+    reason: str
+    intent: str = "update"
+    max_hunks: int = 1
+    max_changed_lines: int = 8
+    allowed_blocks: list[BlockContract] = field(default_factory=list)
+
+    def as_dict(self) -> dict:
+        return {
+            "path": self.path,
+            "reason": self.reason,
+            "intent": self.intent,
+            "max_hunks": self.max_hunks,
+            "max_changed_lines": self.max_changed_lines,
+            "allowed_blocks": [block.as_dict() for block in self.allowed_blocks],
+        }
+
+
+class ContractParser:
+    _supported_block_types = {"append_end", "replace_between", "replace_line_equals"}
+
+    def parse(self, payload: dict, *, request: str, requested_path: str) -> list[dict]:
+        files = payload.get("files", []) if isinstance(payload, dict) else []
+        parsed: list[FileEditContract] = []
+        for item in files if isinstance(files, list) else []:
+            contract = self._parse_file_contract(item)
+            if contract:
+                parsed.append(contract)
+
+        if not parsed:
+            fallback = self._fallback_contract(request=request, requested_path=requested_path)
+            if fallback:
+                parsed.append(fallback)
+
+        return [item.as_dict() for item in parsed]
+
+    def _parse_file_contract(self, item: object) -> FileEditContract | None:
+        if not isinstance(item, dict):
+            return None
+        path = str(item.get("path", "")).replace("\\", "/").strip()
+        if not path:
+            return None
+        reason = str(item.get("reason", "")).strip() or "Requested user adjustment."
+        intent = str(item.get("intent", "update")).strip().lower() or "update"
+        if intent not in {"update", "create"}:
+            intent = "update"
+        max_hunks = self._clamp_int(item.get("max_hunks"), default=1, min_value=1, max_value=5)
+        max_changed_lines = self._clamp_int(item.get("max_changed_lines"), default=8, min_value=1, max_value=120)
+        blocks: list[BlockContract] = []
+        raw_blocks = item.get("allowed_blocks", [])
+        for raw in raw_blocks if isinstance(raw_blocks, list) else []:
+            block = self._parse_block(raw)
+            if block:
+                blocks.append(block)
+        if not blocks:
+            return None
+        return FileEditContract(
+            path=path,
+            reason=reason,
+            intent=intent,
+            max_hunks=max_hunks,
+            max_changed_lines=max_changed_lines,
+            allowed_blocks=blocks,
+        )
+
+    def _parse_block(self, raw: object) -> BlockContract | None:
+        if not isinstance(raw, dict):
+            return None
+        kind = self._normalize_block_type(str(raw.get("type", "")).strip().lower())
+        if kind not in self._supported_block_types:
+            return None
+        max_changed_lines = self._clamp_int(raw.get("max_changed_lines"), default=6, min_value=1, max_value=80)
+        block = BlockContract(
+            type=kind,
+            max_changed_lines=max_changed_lines,
+            start_anchor=str(raw.get("start_anchor", "")).strip(),
+            end_anchor=str(raw.get("end_anchor", "")).strip(),
+            old_line=str(raw.get("old_line", "")).strip(),
+        )
+        if block.type == "replace_between" and (not block.start_anchor or not block.end_anchor):
+            return None
+        if block.type == "replace_line_equals" and not block.old_line:
+            return None
+        return block
+
+    def _fallback_contract(self, *, request: str, requested_path: str) -> FileEditContract | None:
+        path = requested_path.strip()
+        if not path:
+            return None
+        low = (request or "").lower()
+        if any(marker in low for marker in ("в конец", "в самый конец", "append to end", "append at the end")):
+            return FileEditContract(
+                path=path,
+                reason="Append-only update inferred from user request.",
+                intent="update",
+                max_hunks=1,
+                max_changed_lines=8,
+                allowed_blocks=[BlockContract(type="append_end", max_changed_lines=8)],
+            )
+        quoted = self._extract_quoted_line(request)
+        if quoted:
+            return FileEditContract(
+                path=path,
+                reason="Single-line replacement inferred from quoted segment in user request.",
+                intent="update",
+                max_hunks=1,
+                max_changed_lines=4,
+                allowed_blocks=[BlockContract(type="replace_line_equals", old_line=quoted, max_changed_lines=4)],
+            )
+        return None
+
+    def _extract_quoted_line(self, text: str) -> str:
+        value = (text or "").strip()
+        patterns = [
+            r"`([^`]+)`",
+            r"\"([^\"]+)\"",
+            r"'([^']+)'",
+            r"«([^»]+)»",
+        ]
+        for pattern in patterns:
+            match = re.search(pattern, value)
+            if not match:
+                continue
+            candidate = match.group(1).strip()
+            if candidate:
+                return candidate
+        return ""
+
+    def _normalize_block_type(self, value: str) -> str:
+        mapping = {
+            "append": "append_end",
+            "append_eof": "append_end",
+            "end_append": "append_end",
+            "replace_block": "replace_between",
+            "replace_section": "replace_between",
+            "replace_range": "replace_between",
+            "replace_line": "replace_line_equals",
+            "line_equals": "replace_line_equals",
+        }
+        return mapping.get(value, value)
+
+    def _clamp_int(self, value: object, *, default: int, min_value: int, max_value: int) -> int:
+        try:
+            numeric = int(value)  # type: ignore[arg-type]
+        except Exception:
+            numeric = default
+        return max(min_value, min(max_value, numeric))

app/modules/agent/engine/graphs/project_edits_graph.py

@@ -1,3 +1,5 @@
+import logging
+
 from langgraph.graph import END, START, StateGraph
 
 from app.modules.agent.engine.graphs.progress import emit_progress_sync
@@ -5,6 +7,8 @@ from app.modules.agent.engine.graphs.project_edits_logic import ProjectEditsLogi
 from app.modules.agent.engine.graphs.state import AgentGraphState
 from app.modules.agent.llm import AgentLlmService
 
+LOGGER = logging.getLogger(__name__)
+
 
 class ProjectEditsGraphFactory:
     _max_validation_attempts = 2
@@ -38,7 +42,9 @@ class ProjectEditsGraphFactory:
             stage="graph.project_edits.collect_context",
             message="Собираю контекст и релевантные файлы для правок.",
         )
-        return self._logic.collect_context(state)
+        result = self._logic.collect_context(state)
+        self._log_step_result("collect_context", result)
+        return result
 
     def _plan_changes(self, state: AgentGraphState) -> dict:
         emit_progress_sync(
@@ -46,7 +52,9 @@ class ProjectEditsGraphFactory:
             stage="graph.project_edits.plan_changes",
             message="Определяю, что именно нужно изменить и в каких файлах.",
         )
-        return self._logic.plan_changes(state)
+        result = self._logic.plan_changes(state)
+        self._log_step_result("plan_changes", result)
+        return result
 
     def _generate_changeset(self, state: AgentGraphState) -> dict:
         emit_progress_sync(
@@ -54,7 +62,9 @@ class ProjectEditsGraphFactory:
             stage="graph.project_edits.generate_changeset",
             message="Формирую предлагаемые правки по выбранным файлам.",
         )
-        return self._logic.generate_changeset(state)
+        result = self._logic.generate_changeset(state)
+        self._log_step_result("generate_changeset", result)
+        return result
 
     def _self_check(self, state: AgentGraphState) -> dict:
         emit_progress_sync(
@@ -62,7 +72,9 @@ class ProjectEditsGraphFactory:
             stage="graph.project_edits.self_check",
             message="Проверяю, что правки соответствуют запросу и не трогают лишнее.",
         )
-        return self._logic.self_check(state)
+        result = self._logic.self_check(state)
+        self._log_step_result("self_check", result)
+        return result
 
     def _build_result(self, state: AgentGraphState) -> dict:
         emit_progress_sync(
@@ -70,10 +82,21 @@ class ProjectEditsGraphFactory:
             stage="graph.project_edits.build_result",
             message="Формирую итоговый changeset и краткий обзор.",
         )
-        return self._logic.build_result(state)
+        result = self._logic.build_result(state)
+        self._log_step_result("build_result", result)
+        return result
 
     def _route_after_self_check(self, state: AgentGraphState) -> str:
         if state.get("validation_passed"):
             return "ready"
         attempts = int(state.get("validation_attempts", 0) or 0)
         return "ready" if attempts >= self._max_validation_attempts else "retry"
+
+    def _log_step_result(self, step: str, result: dict) -> None:
+        LOGGER.warning(
+            "graph step result: graph=project_edits step=%s keys=%s changeset_items=%s answer_len=%s",
+            step,
+            sorted(result.keys()),
+            len(result.get("changeset", []) or []),
+            len(str(result.get("answer", "") or "")),
+        )

app/modules/agent/engine/graphs/project_edits_logic.py

@@ -1,127 +1,34 @@
 import json
-from difflib import SequenceMatcher
-import re
 
-from app.modules.agent.engine.graphs.file_targeting import FileTargeting
+from app.modules.agent.engine.graphs.project_edits_contract import ContractParser
+from app.modules.agent.engine.graphs.project_edits_patcher import ContractPatcher
+from app.modules.agent.engine.graphs.project_edits_support import ProjectEditsSupport
 from app.modules.agent.engine.graphs.state import AgentGraphState
 from app.modules.agent.llm import AgentLlmService
 from app.schemas.changeset import ChangeItem
 
 
-class ProjectEditsSupport:
-    def __init__(self, max_context_files: int = 12, max_preview_chars: int = 2500) -> None:
-        self._max_context_files = max_context_files
-        self._max_preview_chars = max_preview_chars
-
-    def pick_relevant_files(self, message: str, files_map: dict[str, dict]) -> list[dict]:
-        tokens = {x for x in (message or "").lower().replace("/", " ").split() if len(x) >= 4}
-        scored: list[tuple[int, dict]] = []
-        for path, payload in files_map.items():
-            content = str(payload.get("content", ""))
-            score = 0
-            low_path = path.lower()
-            low_content = content.lower()
-            for token in tokens:
-                if token in low_path:
-                    score += 3
-                if token in low_content:
-                    score += 1
-            scored.append((score, self.as_candidate(payload)))
-        scored.sort(key=lambda x: (-x[0], x[1]["path"]))
-        return [item for _, item in scored[: self._max_context_files]]
-
-    def as_candidate(self, payload: dict) -> dict:
-        return {
-            "path": str(payload.get("path", "")).replace("\\", "/"),
-            "content": str(payload.get("content", "")),
-            "content_hash": str(payload.get("content_hash", "")),
-        }
-
-    def build_summary(self, state: AgentGraphState, changeset: list[ChangeItem]) -> str:
-        if not changeset:
-            return "Правки не сформированы: changeset пуст."
-        lines = [
-            "Выполненные действия:",
-            f"- Проанализирован запрос: {state.get('message', '')}",
-            "- Собран контекст проекта и выбран набор файлов для правок.",
-            f"- Проведен self-check: {state.get('validation_feedback', 'без замечаний')}",
-            "",
-            "Измененные файлы:",
-        ]
-        for item in changeset[:30]:
-            lines.append(f"- {item.op.value} {item.path}: {item.reason}")
-        return "\n".join(lines)
-
-    def normalize_file_output(self, text: str) -> str:
-        value = (text or "").strip()
-        if value.startswith("```") and value.endswith("```"):
-            lines = value.splitlines()
-            if len(lines) >= 3:
-                return "\n".join(lines[1:-1]).strip()
-        return value
-
-    def parse_json(self, raw: str):
-        text = self.normalize_file_output(raw)
-        try:
-            return json.loads(text)
-        except Exception:
-            return {}
-
-    def similarity(self, original: str, updated: str) -> float:
-        return SequenceMatcher(None, original or "", updated or "").ratio()
-
-    def shorten(self, text: str, max_chars: int | None = None) -> str:
-        limit = max_chars or self._max_preview_chars
-        value = (text or "").strip()
-        if len(value) <= limit:
-            return value
-        return value[:limit].rstrip() + "\n...[truncated]"
-
-    def collapse_whitespace(self, text: str) -> str:
-        return re.sub(r"\s+", " ", (text or "").strip())
-
-    def line_change_ratio(self, original: str, updated: str) -> float:
-        orig_lines = (original or "").splitlines()
-        new_lines = (updated or "").splitlines()
-        if not orig_lines and not new_lines:
-            return 0.0
-        matcher = SequenceMatcher(None, orig_lines, new_lines)
-        changed = 0
-        for tag, i1, i2, j1, j2 in matcher.get_opcodes():
-            if tag == "equal":
-                continue
-            changed += max(i2 - i1, j2 - j1)
-        total = max(len(orig_lines), len(new_lines), 1)
-        return changed / total
-
-    def added_headings(self, original: str, updated: str) -> int:
-        old_heads = {line.strip() for line in (original or "").splitlines() if line.strip().startswith("#")}
-        new_heads = {line.strip() for line in (updated or "").splitlines() if line.strip().startswith("#")}
-        return len(new_heads - old_heads)
-
-
 class ProjectEditsLogic:
     def __init__(self, llm: AgentLlmService) -> None:
         self._llm = llm
-        self._targeting = FileTargeting()
         self._support = ProjectEditsSupport()
+        self._contracts = ContractParser()
+        self._patcher = ContractPatcher()
 
     def collect_context(self, state: AgentGraphState) -> dict:
         message = state.get("message", "")
         files_map = state.get("files_map", {}) or {}
-        requested_path = self._targeting.extract_target_path(message)
+        requested_path = self._support.lookup_file(files_map, self._extract_path_hint(message))
-        preferred = self._targeting.lookup_file(files_map, requested_path) if requested_path else None
         candidates = self._support.pick_relevant_files(message, files_map)
-        if preferred and not any(x["path"] == preferred.get("path") for x in candidates):
+        if requested_path and not any(x["path"] == requested_path.get("path") for x in candidates):
-            candidates.insert(0, self._support.as_candidate(preferred))
+            candidates.insert(0, self._support.as_candidate(requested_path))
         return {
-            "edits_requested_path": str((preferred or {}).get("path") or (requested_path or "")).strip(),
+            "edits_requested_path": str((requested_path or {}).get("path", "")).strip() or self._extract_path_hint(message),
             "edits_context_files": candidates[:12],
             "validation_attempts": 0,
         }
 
     def plan_changes(self, state: AgentGraphState) -> dict:
-        context_files = state.get("edits_context_files", []) or []
         user_input = json.dumps(
             {
                 "request": state.get("message", ""),
@@ -129,101 +36,112 @@ class ProjectEditsLogic:
                 "context_files": [
                     {
                         "path": item.get("path", ""),
-                        "content_preview": self._support.shorten(str(item.get("content", ""))),
+                        "content_preview": self._support.shorten(str(item.get("content", "")), 2200),
                     }
-                    for item in context_files
+                    for item in (state.get("edits_context_files", []) or [])
                 ],
+                "contract_requirements": {
+                    "must_define_allowed_blocks": True,
+                    "max_hunks_per_file": 5,
+                    "default_intent": "update",
+                },
             },
             ensure_ascii=False,
         )
-        parsed = self._support.parse_json(self._llm.generate("project_edits_plan", user_input))
+        parsed = self._support.parse_json(
-        files = parsed.get("files", []) if isinstance(parsed, dict) else []
+            self._llm.generate("project_edits_plan", user_input, log_context="graph.project_edits.plan_changes")
-        planned: list[dict] = []
+        )
-        for item in files[:8] if isinstance(files, list) else []:
+        contracts = self._contracts.parse(
-            if not isinstance(item, dict):
+            parsed,
-                continue
+            request=str(state.get("message", "")),
-            path = str(item.get("path", "")).replace("\\", "/").strip()
+            requested_path=str(state.get("edits_requested_path", "")),
-            if not path:
+        )
-                continue
+        plan = [{"path": item.get("path", ""), "reason": item.get("reason", "")} for item in contracts]
-            planned.append(
+        return {"edits_contracts": contracts, "edits_plan": plan}
-                {
-                    "path": path,
-                    "reason": str(item.get("reason", "")).strip() or "Requested user adjustment.",
-                }
-            )
-        if not planned:
-            fallback_path = state.get("edits_requested_path", "").strip() or "docs/REQUESTED_UPDATES.md"
-            planned = [{"path": fallback_path, "reason": "Fallback path from user request."}]
-        return {"edits_plan": planned}
 
     def generate_changeset(self, state: AgentGraphState) -> dict:
         files_map = state.get("files_map", {}) or {}
-        planned = state.get("edits_plan", []) or []
+        contracts = state.get("edits_contracts", []) or []
         changeset: list[ChangeItem] = []
-        for item in planned:
+        feedback: list[str] = []
-            path = str(item.get("path", "")).replace("\\", "/").strip()
+
+        for contract in contracts:
+            if not isinstance(contract, dict):
+                continue
+            path = str(contract.get("path", "")).replace("\\", "/").strip()
             if not path:
                 continue
-            current = self._targeting.lookup_file(files_map, path)
+            intent = str(contract.get("intent", "update")).strip().lower() or "update"
-            current_content = str((current or {}).get("content", ""))
+            source = self._support.lookup_file(files_map, path)
-            user_input = json.dumps(
+            if intent == "update" and source is None:
-                {
+                feedback.append(f"{path}: update requested but source file was not provided.")
-                    "request": state.get("message", ""),
-                    "path": path,
-                    "reason": item.get("reason", ""),
-                    "current_content": current_content,
-                    "previous_validation_feedback": state.get("validation_feedback", ""),
-                    "rag_context": self._support.shorten(state.get("rag_context", ""), 5000),
-                    "confluence_context": self._support.shorten(state.get("confluence_context", ""), 5000),
-                    "instruction": "Modify only required parts and preserve unrelated content unchanged.",
-                },
-                ensure_ascii=False,
-            )
-            raw = self._llm.generate("project_edits_apply", user_input).strip()
-            normalized = self._support.normalize_file_output(raw)
-            if not normalized:
                 continue
-            if current:
+            current_content = str((source or {}).get("content", ""))
-                if normalized == current_content:
+            hunks, error = self._generate_hunks_for_contract(state, contract, current_content)
+            if error:
+                feedback.append(f"{path}: {error}")
+                continue
+            proposed, apply_error = self._patcher.apply(current_content, contract, hunks)
+            if apply_error:
+                feedback.append(f"{path}: {apply_error}")
+                continue
+            if proposed is None:
+                feedback.append(f"{path}: patch application returned empty result.")
+                continue
+            if intent == "update":
+                if proposed == current_content:
+                    feedback.append(f"{path}: no-op update produced by model.")
                     continue
-                if self._support.collapse_whitespace(normalized) == self._support.collapse_whitespace(current_content):
+                if self._support.collapse_whitespace(proposed) == self._support.collapse_whitespace(current_content):
+                    feedback.append(f"{path}: whitespace-only update is not allowed.")
                     continue
-            reason = str(item.get("reason", "")).strip() or "User-requested update."
+            reason = str(contract.get("reason", "")).strip() or "Requested user adjustment."
-            if current and current.get("content_hash"):
+            if source and source.get("content_hash"):
                 changeset.append(
                     ChangeItem(
                         op="update",
-                        path=str(current.get("path") or path),
+                        path=str(source.get("path") or path),
-                        base_hash=str(current.get("content_hash", "")),
+                        base_hash=str(source.get("content_hash", "")),
-                        proposed_content=normalized,
+                        proposed_content=proposed,
                         reason=reason,
+                        hunks=hunks,
                     )
                 )
             else:
-                changeset.append(ChangeItem(op="create", path=path, proposed_content=normalized, reason=reason))
+                changeset.append(
-        return {"changeset": changeset}
+                    ChangeItem(
+                        op="create",
+                        path=path,
+                        proposed_content=proposed,
+                        reason=reason,
+                        hunks=hunks,
+                    )
+                )
+
+        return {"changeset": changeset, "edits_generation_feedback": " | ".join(feedback)}
 
     def self_check(self, state: AgentGraphState) -> dict:
         attempts = int(state.get("validation_attempts", 0) or 0) + 1
         changeset = state.get("changeset", []) or []
         files_map = state.get("files_map", {}) or {}
-        is_broad_rewrite = self._is_broad_rewrite_request(str(state.get("message", "")))
         if not changeset:
-            return {"validation_attempts": attempts, "validation_passed": False, "validation_feedback": "Generated changeset is empty."}
+            feedback = str(state.get("edits_generation_feedback", "")).strip() or "Generated changeset is empty."
+            return {"validation_attempts": attempts, "validation_passed": False, "validation_feedback": feedback}
 
+        broad = self._support.is_broad_rewrite_request(str(state.get("message", "")))
         for item in changeset:
             if item.op.value != "update":
                 continue
-            source = self._targeting.lookup_file(files_map, item.path)
+            source = self._support.lookup_file(files_map, item.path)
             if not source:
                 continue
             original = str(source.get("content", ""))
             proposed = item.proposed_content or ""
             similarity = self._support.similarity(original, proposed)
             change_ratio = self._support.line_change_ratio(original, proposed)
-            headings_added = self._support.added_headings(original, proposed)
+            added_headings = self._support.added_headings(original, proposed)
-            min_similarity = 0.75 if is_broad_rewrite else 0.9
+            min_similarity = 0.75 if broad else 0.9
-            max_change_ratio = 0.7 if is_broad_rewrite else 0.35
+            max_change_ratio = 0.7 if broad else 0.35
             if similarity < min_similarity:
                 return {
                     "validation_attempts": attempts,
@@ -236,7 +154,7 @@ class ProjectEditsLogic:
                     "validation_passed": False,
                     "validation_feedback": f"File {item.path} changed too broadly (change_ratio={change_ratio:.2f}).",
                 }
-            if not is_broad_rewrite and headings_added > 0:
+            if not broad and added_headings > 0:
                 return {
                     "validation_attempts": attempts,
                     "validation_passed": False,
@@ -245,27 +163,78 @@ class ProjectEditsLogic:
 
         payload = {
             "request": state.get("message", ""),
+            "contracts": state.get("edits_contracts", []),
             "changeset": [{"op": x.op.value, "path": x.path, "reason": x.reason} for x in changeset[:20]],
-            "rule": "Changes must match request and avoid unrelated modifications.",
+            "rule": "Changes must stay inside contract blocks and not affect unrelated sections.",
         }
-        parsed = self._support.parse_json(self._llm.generate("project_edits_self_check", json.dumps(payload, ensure_ascii=False)))
+        parsed = self._support.parse_json(
+            self._llm.generate(
+                "project_edits_self_check",
+                json.dumps(payload, ensure_ascii=False),
+                log_context="graph.project_edits.self_check",
+            )
+        )
         passed = bool(parsed.get("pass")) if isinstance(parsed, dict) else False
         feedback = str(parsed.get("feedback", "")).strip() if isinstance(parsed, dict) else ""
-        return {"validation_attempts": attempts, "validation_passed": passed, "validation_feedback": feedback or "No feedback provided."}
+        return {
+            "validation_attempts": attempts,
+            "validation_passed": passed,
+            "validation_feedback": feedback or "No validation feedback provided.",
+        }
 
     def build_result(self, state: AgentGraphState) -> dict:
         changeset = state.get("changeset", []) or []
         return {"changeset": changeset, "answer": self._support.build_summary(state, changeset)}
 
-    def _is_broad_rewrite_request(self, message: str) -> bool:
+    def _generate_hunks_for_contract(
-        low = (message or "").lower()
+        self,
-        markers = (
+        state: AgentGraphState,
-            "перепиши",
+        contract: dict,
-            "полностью",
+        current_content: str,
-            "целиком",
+    ) -> tuple[list[dict], str | None]:
-            "с нуля",
+        prompt_payload = {
-            "full rewrite",
+            "request": state.get("message", ""),
-            "rewrite all",
+            "contract": contract,
-            "реорганизуй документ",
+            "current_content": self._support.shorten(current_content, 18000),
+            "previous_validation_feedback": state.get("validation_feedback", ""),
+            "rag_context": self._support.shorten(state.get("rag_context", ""), 5000),
+            "confluence_context": self._support.shorten(state.get("confluence_context", ""), 5000),
+        }
+        raw = self._llm.generate(
+            "project_edits_hunks",
+            json.dumps(prompt_payload, ensure_ascii=False),
+            log_context="graph.project_edits.generate_changeset",
         )
-        return any(marker in low for marker in markers)
+        parsed = self._support.parse_json(raw)
+        hunks = parsed.get("hunks", []) if isinstance(parsed, dict) else []
+        if not isinstance(hunks, list) or not hunks:
+            return [], "Model did not return contract hunks."
+        normalized: list[dict] = []
+        for hunk in hunks:
+            if not isinstance(hunk, dict):
+                continue
+            kind = str(hunk.get("type", "")).strip().lower()
+            if kind not in {"append_end", "replace_between", "replace_line_equals"}:
+                continue
+            normalized.append(
+                {
+                    "type": kind,
+                    "start_anchor": str(hunk.get("start_anchor", "")),
+                    "end_anchor": str(hunk.get("end_anchor", "")),
+                    "old_line": str(hunk.get("old_line", "")),
+                    "new_text": str(hunk.get("new_text", "")),
+                }
+            )
+        if not normalized:
+            return [], "Model hunks are empty or invalid."
+        return normalized, None
+
+    def _extract_path_hint(self, message: str) -> str:
+        words = (message or "").replace("\\", "/").split()
+        for token in words:
+            cleaned = token.strip("`'\".,:;()[]{}")
+            if "/" in cleaned and "." in cleaned:
+                return cleaned
+            if cleaned.lower().startswith("readme"):
+                return "README.md"
+        return ""

app/modules/agent/engine/graphs/project_edits_patcher.py

@@ -0,0 +1,142 @@
+from difflib import SequenceMatcher
+
+
+class ContractPatcher:
+    def apply(self, current_content: str, contract: dict, hunks: list[dict]) -> tuple[str | None, str | None]:
+        if not hunks:
+            return None, "No hunks were generated."
+
+        max_hunks = int(contract.get("max_hunks", 1) or 1)
+        if len(hunks) > max_hunks:
+            return None, f"Too many hunks: got={len(hunks)} allowed={max_hunks}."
+
+        allowed_blocks = contract.get("allowed_blocks", [])
+        if not isinstance(allowed_blocks, list) or not allowed_blocks:
+            return None, "No allowed blocks in edit contract."
+
+        result = current_content
+        total_changed_lines = 0
+        for idx, hunk in enumerate(hunks, start=1):
+            applied, changed_lines, error = self._apply_hunk(result, hunk, allowed_blocks)
+            if error:
+                return None, f"Hunk {idx} rejected: {error}"
+            result = applied
+            total_changed_lines += changed_lines
+
+        max_changed_lines = int(contract.get("max_changed_lines", 8) or 8)
+        if total_changed_lines > max_changed_lines:
+            return (
+                None,
+                f"Changed lines exceed contract limit: changed={total_changed_lines} allowed={max_changed_lines}.",
+            )
+        return result, None
+
+    def _apply_hunk(
+        self,
+        content: str,
+        hunk: dict,
+        allowed_blocks: list[dict],
+    ) -> tuple[str, int, str | None]:
+        if not isinstance(hunk, dict):
+            return content, 0, "Invalid hunk payload."
+        kind = str(hunk.get("type", "")).strip().lower()
+        if kind not in {"append_end", "replace_between", "replace_line_equals"}:
+            return content, 0, f"Unsupported hunk type: {kind or '(empty)'}."
+
+        block = self._find_matching_block(hunk, allowed_blocks)
+        if block is None:
+            return content, 0, "Hunk does not match allowed contract blocks."
+
+        if kind == "append_end":
+            return self._apply_append_end(content, hunk, block)
+        if kind == "replace_between":
+            return self._apply_replace_between(content, hunk, block)
+        return self._apply_replace_line_equals(content, hunk, block)
+
+    def _find_matching_block(self, hunk: dict, allowed_blocks: list[dict]) -> dict | None:
+        kind = str(hunk.get("type", "")).strip().lower()
+        for block in allowed_blocks:
+            if not isinstance(block, dict):
+                continue
+            block_type = str(block.get("type", "")).strip().lower()
+            if block_type != kind:
+                continue
+            if kind == "replace_between":
+                start = str(hunk.get("start_anchor", "")).strip()
+                end = str(hunk.get("end_anchor", "")).strip()
+                if start != str(block.get("start_anchor", "")).strip():
+                    continue
+                if end != str(block.get("end_anchor", "")).strip():
+                    continue
+            if kind == "replace_line_equals":
+                old_line = str(hunk.get("old_line", "")).strip()
+                if old_line != str(block.get("old_line", "")).strip():
+                    continue
+            return block
+        return None
+
+    def _apply_append_end(self, content: str, hunk: dict, block: dict) -> tuple[str, int, str | None]:
+        new_text = str(hunk.get("new_text", ""))
+        if not new_text.strip():
+            return content, 0, "append_end new_text is empty."
+        changed_lines = self._changed_line_count("", new_text)
+        block_limit = int(block.get("max_changed_lines", 6) or 6)
+        if changed_lines > block_limit:
+            return content, 0, f"append_end is too large: changed={changed_lines} allowed={block_limit}."
+        base = content.rstrip("\n")
+        suffix = new_text.strip("\n")
+        if not suffix:
+            return content, 0, "append_end resolved to empty suffix."
+        merged = f"{base}\n\n{suffix}\n" if base else f"{suffix}\n"
+        return merged, changed_lines, None
+
+    def _apply_replace_between(self, content: str, hunk: dict, block: dict) -> tuple[str, int, str | None]:
+        start_anchor = str(hunk.get("start_anchor", "")).strip()
+        end_anchor = str(hunk.get("end_anchor", "")).strip()
+        new_text = str(hunk.get("new_text", ""))
+        if not start_anchor or not end_anchor:
+            return content, 0, "replace_between anchors are required."
+        start_pos = content.find(start_anchor)
+        if start_pos < 0:
+            return content, 0, "start_anchor not found in file."
+        middle_start = start_pos + len(start_anchor)
+        end_pos = content.find(end_anchor, middle_start)
+        if end_pos < 0:
+            return content, 0, "end_anchor not found after start_anchor."
+        old_segment = content[middle_start:end_pos]
+        changed_lines = self._changed_line_count(old_segment, new_text)
+        block_limit = int(block.get("max_changed_lines", 6) or 6)
+        if changed_lines > block_limit:
+            return content, 0, f"replace_between is too large: changed={changed_lines} allowed={block_limit}."
+        merged = content[:middle_start] + new_text + content[end_pos:]
+        return merged, changed_lines, None
+
+    def _apply_replace_line_equals(self, content: str, hunk: dict, block: dict) -> tuple[str, int, str | None]:
+        old_line = str(hunk.get("old_line", "")).strip()
+        new_text = str(hunk.get("new_text", ""))
+        if not old_line:
+            return content, 0, "replace_line_equals old_line is required."
+        lines = content.splitlines(keepends=True)
+        matches = [idx for idx, line in enumerate(lines) if line.rstrip("\n") == old_line]
+        if len(matches) != 1:
+            return content, 0, f"replace_line_equals expected exactly one match, got={len(matches)}."
+        replacement = new_text.rstrip("\n") + "\n"
+        changed_lines = self._changed_line_count(old_line + "\n", replacement)
+        block_limit = int(block.get("max_changed_lines", 6) or 6)
+        if changed_lines > block_limit:
+            return content, 0, f"replace_line_equals is too large: changed={changed_lines} allowed={block_limit}."
+        lines[matches[0] : matches[0] + 1] = [replacement]
+        return "".join(lines), changed_lines, None
+
+    def _changed_line_count(self, old_text: str, new_text: str) -> int:
+        old_lines = (old_text or "").splitlines()
+        new_lines = (new_text or "").splitlines()
+        if not old_lines and not new_lines:
+            return 0
+        matcher = SequenceMatcher(None, old_lines, new_lines)
+        changed = 0
+        for tag, i1, i2, j1, j2 in matcher.get_opcodes():
+            if tag == "equal":
+                continue
+            changed += max(i2 - i1, j2 - j1)
+        return max(changed, 1)

app/modules/agent/engine/graphs/project_edits_support.py

@@ -0,0 +1,116 @@
+import json
+import re
+from difflib import SequenceMatcher
+
+from app.modules.agent.engine.graphs.file_targeting import FileTargeting
+from app.modules.agent.engine.graphs.state import AgentGraphState
+from app.schemas.changeset import ChangeItem
+
+
+class ProjectEditsSupport:
+    def __init__(self, max_context_files: int = 12, max_preview_chars: int = 2500) -> None:
+        self._max_context_files = max_context_files
+        self._max_preview_chars = max_preview_chars
+        self._targeting = FileTargeting()
+
+    def pick_relevant_files(self, message: str, files_map: dict[str, dict]) -> list[dict]:
+        tokens = {x for x in (message or "").lower().replace("/", " ").split() if len(x) >= 4}
+        scored: list[tuple[int, dict]] = []
+        for path, payload in files_map.items():
+            content = str(payload.get("content", ""))
+            score = 0
+            low_path = path.lower()
+            low_content = content.lower()
+            for token in tokens:
+                if token in low_path:
+                    score += 3
+                if token in low_content:
+                    score += 1
+            scored.append((score, self.as_candidate(payload)))
+        scored.sort(key=lambda x: (-x[0], x[1]["path"]))
+        return [item for _, item in scored[: self._max_context_files]]
+
+    def as_candidate(self, payload: dict) -> dict:
+        return {
+            "path": str(payload.get("path", "")).replace("\\", "/"),
+            "content": str(payload.get("content", "")),
+            "content_hash": str(payload.get("content_hash", "")),
+        }
+
+    def normalize_file_output(self, text: str) -> str:
+        value = (text or "").strip()
+        if value.startswith("```") and value.endswith("```"):
+            lines = value.splitlines()
+            if len(lines) >= 3:
+                return "\n".join(lines[1:-1]).strip()
+        return value
+
+    def parse_json(self, raw: str):
+        text = self.normalize_file_output(raw)
+        try:
+            return json.loads(text)
+        except Exception:
+            return {}
+
+    def shorten(self, text: str, max_chars: int | None = None) -> str:
+        limit = max_chars or self._max_preview_chars
+        value = (text or "").strip()
+        if len(value) <= limit:
+            return value
+        return value[:limit].rstrip() + "\n...[truncated]"
+
+    def collapse_whitespace(self, text: str) -> str:
+        return re.sub(r"\s+", " ", (text or "").strip())
+
+    def similarity(self, original: str, updated: str) -> float:
+        return SequenceMatcher(None, original or "", updated or "").ratio()
+
+    def line_change_ratio(self, original: str, updated: str) -> float:
+        orig_lines = (original or "").splitlines()
+        new_lines = (updated or "").splitlines()
+        if not orig_lines and not new_lines:
+            return 0.0
+        matcher = SequenceMatcher(None, orig_lines, new_lines)
+        changed = 0
+        for tag, i1, i2, j1, j2 in matcher.get_opcodes():
+            if tag == "equal":
+                continue
+            changed += max(i2 - i1, j2 - j1)
+        total = max(len(orig_lines), len(new_lines), 1)
+        return changed / total
+
+    def added_headings(self, original: str, updated: str) -> int:
+        old_heads = {line.strip() for line in (original or "").splitlines() if line.strip().startswith("#")}
+        new_heads = {line.strip() for line in (updated or "").splitlines() if line.strip().startswith("#")}
+        return len(new_heads - old_heads)
+
+    def build_summary(self, state: AgentGraphState, changeset: list[ChangeItem]) -> str:
+        if not changeset:
+            return "Правки не сформированы: changeset пуст."
+        lines = [
+            "Выполненные действия:",
+            f"- Проанализирован запрос: {state.get('message', '')}",
+            "- Сформирован контракт правок с разрешенными блоками изменений.",
+            f"- Проведен self-check: {state.get('validation_feedback', 'без замечаний')}",
+            "",
+            "Измененные файлы:",
+        ]
+        for item in changeset[:30]:
+            lines.append(f"- {item.op.value} {item.path}: {item.reason}")
+        return "\n".join(lines)
+
+    def is_broad_rewrite_request(self, message: str) -> bool:
+        low = (message or "").lower()
+        markers = (
+            "перепиши",
+            "полностью",
+            "целиком",
+            "с нуля",
+            "full rewrite",
+            "rewrite all",
+            "реорганизуй документ",
+        )
+        return any(marker in low for marker in markers)
+
+    def lookup_file(self, files_map: dict[str, dict], path: str) -> dict | None:
+        return self._targeting.lookup_file(files_map, path)

app/modules/agent/engine/graphs/project_qa_graph.py

@@ -1,9 +1,13 @@
+import logging
+
 from langgraph.graph import END, START, StateGraph
 
 from app.modules.agent.engine.graphs.progress import emit_progress_sync
 from app.modules.agent.engine.graphs.state import AgentGraphState
 from app.modules.agent.llm import AgentLlmService
 
+LOGGER = logging.getLogger(__name__)
+
 
 class ProjectQaGraphFactory:
     def __init__(self, llm: AgentLlmService) -> None:
@@ -29,10 +33,15 @@ class ProjectQaGraphFactory:
                 f"Confluence context:\n{state.get('confluence_context', '')}",
             ]
         )
-        answer = self._llm.generate("project_answer", user_input)
+        answer = self._llm.generate("project_answer", user_input, log_context="graph.project_qa.answer")
         emit_progress_sync(
             state,
             stage="graph.project_qa.answer.done",
             message="Ответ по проекту сформирован.",
         )
-        return {"answer": answer}
+        result = {"answer": answer}
+        LOGGER.warning(
+            "graph step result: graph=project_qa step=answer answer_len=%s",
+            len(answer or ""),
+        )
+        return result

app/modules/agent/engine/graphs/project_qa_step_graphs.py

@@ -0,0 +1,172 @@
+from __future__ import annotations
+import logging
+
+from langgraph.graph import END, START, StateGraph
+
+from app.modules.agent.engine.graphs.progress import emit_progress_sync
+from app.modules.agent.engine.graphs.state import AgentGraphState
+from app.modules.agent.engine.orchestrator.actions.project_qa_analyzer import ProjectQaAnalyzer
+from app.modules.agent.engine.orchestrator.actions.project_qa_support import ProjectQaSupport
+from app.modules.agent.llm import AgentLlmService
+from app.modules.contracts import RagRetriever
+from app.modules.rag.explain import ExplainPack, PromptBudgeter
+
+LOGGER = logging.getLogger(__name__)
+
+
+class ProjectQaConversationGraphFactory:
+    def __init__(self, llm: AgentLlmService | None = None) -> None:
+        self._support = ProjectQaSupport()
+
+    def build(self, checkpointer=None):
+        graph = StateGraph(AgentGraphState)
+        graph.add_node("resolve_request", self._resolve_request)
+        graph.add_edge(START, "resolve_request")
+        graph.add_edge("resolve_request", END)
+        return graph.compile(checkpointer=checkpointer)
+
+    def _resolve_request(self, state: AgentGraphState) -> dict:
+        emit_progress_sync(state, stage="graph.project_qa.conversation_understanding", message="Нормализую пользовательский запрос.")
+        resolved = self._support.resolve_request(str(state.get("message", "") or ""))
+        LOGGER.warning("graph step result: graph=project_qa/conversation_understanding normalized=%s", resolved.get("normalized_message", ""))
+        return {"resolved_request": resolved}
+
+
+class ProjectQaClassificationGraphFactory:
+    def __init__(self, llm: AgentLlmService | None = None) -> None:
+        self._support = ProjectQaSupport()
+
+    def build(self, checkpointer=None):
+        graph = StateGraph(AgentGraphState)
+        graph.add_node("classify_question", self._classify_question)
+        graph.add_edge(START, "classify_question")
+        graph.add_edge("classify_question", END)
+        return graph.compile(checkpointer=checkpointer)
+
+    def _classify_question(self, state: AgentGraphState) -> dict:
+        resolved = state.get("resolved_request", {}) or {}
+        message = str(resolved.get("normalized_message") or state.get("message", "") or "")
+        profile = self._support.build_profile(message)
+        LOGGER.warning("graph step result: graph=project_qa/question_classification domain=%s intent=%s", profile.get("domain"), profile.get("intent"))
+        return {"question_profile": profile}
+
+
+class ProjectQaRetrievalGraphFactory:
+    def __init__(self, rag: RagRetriever, llm: AgentLlmService | None = None) -> None:
+        self._rag = rag
+        self._support = ProjectQaSupport()
+
+    def build(self, checkpointer=None):
+        graph = StateGraph(AgentGraphState)
+        graph.add_node("retrieve_context", self._retrieve_context)
+        graph.add_edge(START, "retrieve_context")
+        graph.add_edge("retrieve_context", END)
+        return graph.compile(checkpointer=checkpointer)
+
+    def _retrieve_context(self, state: AgentGraphState) -> dict:
+        emit_progress_sync(state, stage="graph.project_qa.context_retrieval", message="Собираю контекст по проекту.")
+        resolved = state.get("resolved_request", {}) or {}
+        profile = state.get("question_profile", {}) or {}
+        files_map = dict(state.get("files_map", {}) or {})
+        rag_items: list[dict] = []
+        source_bundle = self._support.build_source_bundle(profile, list(rag_items), files_map)
+        LOGGER.warning(
+            "graph step result: graph=project_qa/context_retrieval mode=%s rag_items=%s file_candidates=%s legacy_rag=%s",
+            profile.get("domain"),
+            len(source_bundle.get("rag_items", []) or []),
+            len(source_bundle.get("file_candidates", []) or []),
+            False,
+        )
+        return {"source_bundle": source_bundle}
+
+
+class ProjectQaAnalysisGraphFactory:
+    def __init__(self, llm: AgentLlmService | None = None) -> None:
+        self._support = ProjectQaSupport()
+        self._analyzer = ProjectQaAnalyzer()
+
+    def build(self, checkpointer=None):
+        graph = StateGraph(AgentGraphState)
+        graph.add_node("analyze_context", self._analyze_context)
+        graph.add_edge(START, "analyze_context")
+        graph.add_edge("analyze_context", END)
+        return graph.compile(checkpointer=checkpointer)
+
+    def _analyze_context(self, state: AgentGraphState) -> dict:
+        explain_pack = state.get("explain_pack")
+        if explain_pack:
+            analysis = self._analysis_from_pack(explain_pack)
+            LOGGER.warning(
+                "graph step result: graph=project_qa/context_analysis findings=%s evidence=%s",
+                len(analysis.get("findings", []) or []),
+                len(analysis.get("evidence", []) or []),
+            )
+            return {"analysis_brief": analysis}
+        bundle = state.get("source_bundle", {}) or {}
+        profile = bundle.get("profile", {}) or state.get("question_profile", {}) or {}
+        rag_items = list(bundle.get("rag_items", []) or [])
+        file_candidates = list(bundle.get("file_candidates", []) or [])
+        analysis = self._analyzer.analyze_code(profile, rag_items, file_candidates) if str(profile.get("domain")) == "code" else self._analyzer.analyze_docs(profile, rag_items)
+        LOGGER.warning(
+            "graph step result: graph=project_qa/context_analysis findings=%s evidence=%s",
+            len(analysis.get("findings", []) or []),
+            len(analysis.get("evidence", []) or []),
+        )
+        return {"analysis_brief": analysis}
+
+    def _analysis_from_pack(self, raw_pack) -> dict:
+        pack = ExplainPack.model_validate(raw_pack)
+        findings: list[str] = []
+        evidence: list[str] = []
+        for entrypoint in pack.selected_entrypoints[:3]:
+            findings.append(f"Entrypoint `{entrypoint.title}` maps to handler `{entrypoint.metadata.get('handler_symbol_id', '')}`.")
+            if entrypoint.source:
+                evidence.append(entrypoint.source)
+        for path in pack.trace_paths[:3]:
+            if path.symbol_ids:
+                findings.append(f"Trace path: {' -> '.join(path.symbol_ids)}")
+        for excerpt in pack.code_excerpts[:4]:
+            evidence.append(f"{excerpt.path}:{excerpt.start_line}-{excerpt.end_line} [{excerpt.evidence_id}]")
+        return {
+            "subject": pack.intent.normalized_query,
+            "findings": findings or ["No explain trace was built from the available code evidence."],
+            "evidence": evidence,
+            "gaps": list(pack.missing),
+            "answer_mode": "summary",
+        }
+
+
+class ProjectQaAnswerGraphFactory:
+    def __init__(self, llm: AgentLlmService | None = None) -> None:
+        self._support = ProjectQaSupport()
+        self._llm = llm
+        self._budgeter = PromptBudgeter()
+
+    def build(self, checkpointer=None):
+        graph = StateGraph(AgentGraphState)
+        graph.add_node("compose_answer", self._compose_answer)
+        graph.add_edge(START, "compose_answer")
+        graph.add_edge("compose_answer", END)
+        return graph.compile(checkpointer=checkpointer)
+
+    def _compose_answer(self, state: AgentGraphState) -> dict:
+        profile = state.get("question_profile", {}) or {}
+        analysis = state.get("analysis_brief", {}) or {}
+        brief = self._support.build_answer_brief(profile, analysis)
+        explain_pack = state.get("explain_pack")
+        answer = self._compose_explain_answer(state, explain_pack)
+        if not answer:
+            answer = self._support.compose_answer(brief)
+        LOGGER.warning("graph step result: graph=project_qa/answer_composition answer_len=%s", len(answer or ""))
+        return {"answer_brief": brief, "final_answer": answer}
+
+    def _compose_explain_answer(self, state: AgentGraphState, raw_pack) -> str:
+        if raw_pack is None or self._llm is None:
+            return ""
+        pack = ExplainPack.model_validate(raw_pack)
+        prompt_input = self._budgeter.build_prompt_input(str(state.get("message", "") or ""), pack)
+        return self._llm.generate(
+            "code_explain_answer_v2",
+            prompt_input,
+            log_context="graph.project_qa.answer_v2",
+        ).strip()

app/modules/agent/engine/graphs/state.py

@@ -25,8 +25,16 @@ class AgentGraphState(TypedDict, total=False):
     validation_passed: bool
     validation_feedback: str
     validation_attempts: int
+    resolved_request: dict
+    question_profile: dict
+    source_bundle: dict
+    analysis_brief: dict
+    answer_brief: dict
+    final_answer: str
     answer: str
     changeset: list[ChangeItem]
     edits_requested_path: str
     edits_context_files: list[dict]
     edits_plan: list[dict]
+    edits_contracts: list[dict]
+    edits_generation_feedback: str

app/modules/agent/engine/orchestrator/__init__.py

@@ -0,0 +1,21 @@
+from app.modules.agent.engine.orchestrator.models import (
+    ExecutionPlan,
+    OrchestratorResult,
+    PlanStep,
+    Scenario,
+    StepResult,
+    TaskSpec,
+)
+from app.modules.agent.engine.orchestrator.service import OrchestratorService
+from app.modules.agent.engine.orchestrator.task_spec_builder import TaskSpecBuilder
+
+__all__ = [
+    "ExecutionPlan",
+    "OrchestratorResult",
+    "OrchestratorService",
+    "PlanStep",
+    "Scenario",
+    "StepResult",
+    "TaskSpec",
+    "TaskSpecBuilder",
+]

app/modules/agent/engine/orchestrator/actions/__init__.py

@@ -0,0 +1,17 @@
+from app.modules.agent.engine.orchestrator.actions.code_explain_actions import CodeExplainActions
+from app.modules.agent.engine.orchestrator.actions.docs_actions import DocsActions
+from app.modules.agent.engine.orchestrator.actions.edit_actions import EditActions
+from app.modules.agent.engine.orchestrator.actions.explain_actions import ExplainActions
+from app.modules.agent.engine.orchestrator.actions.gherkin_actions import GherkinActions
+from app.modules.agent.engine.orchestrator.actions.project_qa_actions import ProjectQaActions
+from app.modules.agent.engine.orchestrator.actions.review_actions import ReviewActions
+
+__all__ = [
+    "CodeExplainActions",
+    "DocsActions",
+    "EditActions",
+    "ExplainActions",
+    "GherkinActions",
+    "ProjectQaActions",
+    "ReviewActions",
+]

app/modules/agent/engine/orchestrator/actions/code_explain_actions.py

@@ -0,0 +1,46 @@
+from __future__ import annotations
+
+import logging
+
+from typing import TYPE_CHECKING
+
+from app.modules.agent.engine.orchestrator.actions.common import ActionSupport
+from app.modules.agent.engine.orchestrator.execution_context import ExecutionContext
+from app.modules.agent.engine.orchestrator.models import ArtifactType
+from app.modules.rag.explain.intent_builder import ExplainIntentBuilder
+from app.modules.rag.explain.models import ExplainPack
+
+if TYPE_CHECKING:
+    from app.modules.rag.explain.retriever_v2 import CodeExplainRetrieverV2
+
+LOGGER = logging.getLogger(__name__)
+
+
+class CodeExplainActions(ActionSupport):
+    def __init__(self, retriever: CodeExplainRetrieverV2 | None = None) -> None:
+        self._retriever = retriever
+        self._intent_builder = ExplainIntentBuilder()
+
+    def build_code_explain_pack(self, ctx: ExecutionContext) -> list[str]:
+        file_candidates = list((self.get(ctx, "source_bundle", {}) or {}).get("file_candidates", []) or [])
+        if self._retriever is None:
+            pack = ExplainPack(
+                intent=self._intent_builder.build(ctx.task.user_message),
+                missing=["code_explain_retriever_unavailable"],
+            )
+        else:
+            pack = self._retriever.build_pack(
+                ctx.task.rag_session_id,
+                ctx.task.user_message,
+                file_candidates=file_candidates,
+            )
+        LOGGER.warning(
+            "code explain action: task_id=%s entrypoints=%s seeds=%s paths=%s excerpts=%s missing=%s",
+            ctx.task.task_id,
+            len(pack.selected_entrypoints),
+            len(pack.seed_symbols),
+            len(pack.trace_paths),
+            len(pack.code_excerpts),
+            pack.missing,
+        )
+        return [self.put(ctx, "explain_pack", ArtifactType.STRUCTURED_JSON, pack.model_dump(mode="json"))]

app/modules/agent/engine/orchestrator/actions/common.py

@@ -0,0 +1,26 @@
+from __future__ import annotations
+
+from uuid import uuid4
+
+from app.modules.agent.engine.orchestrator.execution_context import ExecutionContext
+from app.modules.agent.engine.orchestrator.models import ArtifactType, EvidenceItem
+
+
+class ActionSupport:
+    def put(self, ctx: ExecutionContext, key: str, artifact_type: ArtifactType, value, *, meta: dict | None = None) -> str:
+        item = ctx.artifacts.put(key=key, artifact_type=artifact_type, content=value, meta=meta)
+        return item.artifact_id
+
+    def get(self, ctx: ExecutionContext, key: str, default=None):
+        return ctx.artifacts.get_content(key, default)
+
+    def add_evidence(self, ctx: ExecutionContext, *, source_type: str, source_ref: str, snippet: str, score: float = 0.8) -> str:
+        evidence = EvidenceItem(
+            evidence_id=f"evidence_{uuid4().hex}",
+            source_type=source_type,
+            source_ref=source_ref,
+            snippet=(snippet or "").strip()[:600],
+            score=max(0.0, min(1.0, float(score))),
+        )
+        ctx.evidences.put_many([evidence])
+        return evidence.evidence_id

app/modules/agent/engine/orchestrator/actions/docs_actions.py

@@ -0,0 +1,95 @@
+from __future__ import annotations
+
+from app.modules.agent.engine.orchestrator.actions.common import ActionSupport
+from app.modules.agent.engine.orchestrator.execution_context import ExecutionContext
+from app.modules.agent.engine.orchestrator.models import ArtifactType
+
+
+class DocsActions(ActionSupport):
+    def extract_change_intents(self, ctx: ExecutionContext) -> list[str]:
+        text = str(self.get(ctx, "source_doc_text", "") or ctx.task.user_message)
+        intents = {
+            "summary": text[:240],
+            "api": ["Update endpoint behavior contract"],
+            "logic": ["Adjust reusable business rules"],
+            "db": ["Reflect schema/table notes if needed"],
+            "ui": ["Adjust form behavior and validation"],
+        }
+        return [self.put(ctx, "change_intents", ArtifactType.STRUCTURED_JSON, intents)]
+
+    def map_to_doc_tree(self, ctx: ExecutionContext) -> list[str]:
+        targets = [
+            "docs/api/increment.md",
+            "docs/logic/increment.md",
+            "docs/db/increment.md",
+            "docs/ui/increment.md",
+        ]
+        return [self.put(ctx, "doc_targets", ArtifactType.STRUCTURED_JSON, {"targets": targets})]
+
+    def load_current_docs_context(self, ctx: ExecutionContext) -> list[str]:
+        files_map = dict(ctx.task.metadata.get("files_map", {}) or {})
+        targets = (self.get(ctx, "doc_targets", {}) or {}).get("targets", [])
+        current = []
+        for path in targets:
+            current.append(
+                {
+                    "path": path,
+                    "content": str((files_map.get(path) or {}).get("content", "")),
+                    "content_hash": str((files_map.get(path) or {}).get("content_hash", "")),
+                }
+            )
+        return [self.put(ctx, "current_docs_context", ArtifactType.STRUCTURED_JSON, {"files": current})]
+
+    def generate_doc_updates(self, ctx: ExecutionContext) -> list[str]:
+        intents = self.get(ctx, "change_intents", {}) or {}
+        targets = (self.get(ctx, "doc_targets", {}) or {}).get("targets", [])
+        bundle = []
+        for path in targets:
+            bundle.append(
+                {
+                    "path": path,
+                    "content": "\n".join(
+                        [
+                            f"# Increment Update: {path}",
+                            "",
+                            "## Scope",
+                            str(intents.get("summary", "")),
+                            "",
+                            "## Changes",
+                            "- Updated according to analytics increment.",
+                        ]
+                    ),
+                    "reason": "align docs with analytics increment",
+                }
+            )
+        return [self.put(ctx, "generated_doc_bundle", ArtifactType.DOC_BUNDLE, bundle)]
+
+    def cross_file_validation(self, ctx: ExecutionContext) -> list[str]:
+        bundle = self.get(ctx, "generated_doc_bundle", []) or []
+        paths = [str(item.get("path", "")) for item in bundle if isinstance(item, dict)]
+        has_required = any(path.startswith("docs/api/") for path in paths) and any(path.startswith("docs/logic/") for path in paths)
+        report = {"paths": paths, "required_core_paths_present": has_required}
+        return [self.put(ctx, "consistency_report", ArtifactType.STRUCTURED_JSON, report)]
+
+    def build_changeset(self, ctx: ExecutionContext) -> list[str]:
+        bundle = self.get(ctx, "generated_doc_bundle", []) or []
+        changeset = []
+        for item in bundle:
+            if not isinstance(item, dict):
+                continue
+            changeset.append(
+                {
+                    "op": "update",
+                    "path": str(item.get("path", "")).strip(),
+                    "base_hash": "orchestrator-generated",
+                    "proposed_content": str(item.get("content", "")),
+                    "reason": str(item.get("reason", "documentation update")),
+                    "hunks": [],
+                }
+            )
+        return [self.put(ctx, "final_changeset", ArtifactType.CHANGESET, changeset)]
+
+    def compose_summary(self, ctx: ExecutionContext) -> list[str]:
+        count = len(self.get(ctx, "final_changeset", []) or [])
+        text = f"Prepared documentation changeset with {count} files updated."
+        return [self.put(ctx, "final_answer", ArtifactType.TEXT, text)]

app/modules/agent/engine/orchestrator/actions/edit_actions.py

@@ -0,0 +1,101 @@
+from __future__ import annotations
+
+import re
+
+from app.modules.agent.engine.orchestrator.actions.common import ActionSupport
+from app.modules.agent.engine.orchestrator.execution_context import ExecutionContext
+from app.modules.agent.engine.orchestrator.models import ArtifactType
+
+
+class EditActions(ActionSupport):
+    def resolve_target(self, ctx: ExecutionContext) -> list[str]:
+        message = ctx.task.user_message
+        files_map = dict(ctx.task.metadata.get("files_map", {}) or {})
+        requested = self._extract_path(message)
+        matched = self._lookup_source(files_map, requested)
+        if matched:
+            requested = str(matched.get("path") or requested or "")
+        if not requested and files_map:
+            requested = next(iter(files_map.keys()))
+        payload = {"path": requested or "", "allowed": bool(requested)}
+        return [self.put(ctx, "resolved_target", ArtifactType.STRUCTURED_JSON, payload)]
+
+    def load_target_context(self, ctx: ExecutionContext) -> list[str]:
+        files_map = dict(ctx.task.metadata.get("files_map", {}) or {})
+        resolved = self.get(ctx, "resolved_target", {}) or {}
+        path = str(resolved.get("path", ""))
+        source = dict(self._lookup_source(files_map, path) or {})
+        current = {
+            "path": str(source.get("path", "")) or path,
+            "content": str(source.get("content", "")),
+            "content_hash": str(source.get("content_hash", "")),
+        }
+        return [self.put(ctx, "target_context", ArtifactType.STRUCTURED_JSON, current)]
+
+    def plan_minimal_patch(self, ctx: ExecutionContext) -> list[str]:
+        target = self.get(ctx, "target_context", {}) or {}
+        plan = {
+            "path": target.get("path", ""),
+            "intent": "minimal_update",
+            "instruction": ctx.task.user_message[:240],
+        }
+        return [self.put(ctx, "patch_plan", ArtifactType.STRUCTURED_JSON, plan)]
+
+    def generate_patch(self, ctx: ExecutionContext) -> list[str]:
+        target = self.get(ctx, "target_context", {}) or {}
+        plan = self.get(ctx, "patch_plan", {}) or {}
+        path = str(target.get("path", ""))
+        base = str(target.get("content_hash", "") or "orchestrator-generated")
+        original = str(target.get("content", ""))
+        note = f"\n\n<!-- orchestrator note: {plan.get('instruction', '')[:100]} -->\n"
+        proposed = (original + note).strip() if original else note.strip()
+        changeset = [
+            {
+                "op": "update" if original else "create",
+                "path": path,
+                "base_hash": base if original else None,
+                "proposed_content": proposed,
+                "reason": "targeted file update",
+                "hunks": [],
+            }
+        ]
+        return [self.put(ctx, "raw_changeset", ArtifactType.CHANGESET, changeset)]
+
+    def validate_patch_safety(self, ctx: ExecutionContext) -> list[str]:
+        changeset = self.get(ctx, "raw_changeset", []) or []
+        safe = len(changeset) == 1
+        report = {"safe": safe, "items": len(changeset), "reason": "single-file patch expected"}
+        return [self.put(ctx, "patch_validation_report", ArtifactType.STRUCTURED_JSON, report)]
+
+    def finalize_changeset(self, ctx: ExecutionContext) -> list[str]:
+        report = self.get(ctx, "patch_validation_report", {}) or {}
+        if not report.get("safe"):
+            return [self.put(ctx, "final_changeset", ArtifactType.CHANGESET, [])]
+        changeset = self.get(ctx, "raw_changeset", []) or []
+        return [self.put(ctx, "final_changeset", ArtifactType.CHANGESET, changeset)]
+
+    def compose_edit_summary(self, ctx: ExecutionContext) -> list[str]:
+        count = len(self.get(ctx, "final_changeset", []) or [])
+        text = f"Prepared targeted edit changeset with {count} item(s)."
+        return [self.put(ctx, "final_answer", ArtifactType.TEXT, text)]
+
+    def _extract_path(self, text: str) -> str | None:
+        match = re.search(r"\b[\w./-]+\.(md|txt|rst|yaml|yml|json|toml|ini|cfg)\b", text or "", flags=re.IGNORECASE)
+        if not match:
+            return None
+        return match.group(0).replace("\\", "/").strip()
+
+    def _lookup_source(self, files_map: dict[str, dict], path: str | None) -> dict | None:
+        if not path:
+            return None
+        normalized = str(path).replace("\\", "/").strip()
+        if not normalized:
+            return None
+        source = files_map.get(normalized)
+        if source:
+            return source
+        normalized_low = normalized.lower()
+        for key, value in files_map.items():
+            if str(key).replace("\\", "/").lower() == normalized_low:
+                return value
+        return None

app/modules/agent/engine/orchestrator/actions/explain_actions.py

@@ -0,0 +1,259 @@
+from __future__ import annotations
+
+from collections import Counter
+
+from app.modules.agent.engine.orchestrator.actions.common import ActionSupport
+from app.modules.agent.engine.orchestrator.execution_context import ExecutionContext
+from app.modules.agent.engine.orchestrator.models import ArtifactType
+
+
+class ExplainActions(ActionSupport):
+    def collect_sources(self, ctx: ExecutionContext) -> list[str]:
+        rag_items = list(ctx.task.metadata.get("rag_items", []) or [])
+        rag_context = str(ctx.task.metadata.get("rag_context", ""))
+        confluence_context = str(ctx.task.metadata.get("confluence_context", ""))
+        files_map = dict(ctx.task.metadata.get("files_map", {}) or {})
+        payload = {
+            "rag_items": rag_items,
+            "rag_context": rag_context,
+            "confluence_context": confluence_context,
+            "files_count": len(files_map),
+            "source_profile": self._source_profile(rag_items),
+        }
+        evidence_ids: list[str] = []
+        for item in rag_items[:5]:
+            snippet = str(item.get("content", "") or "").strip()
+            if not snippet:
+                continue
+            evidence_ids.append(
+                self.add_evidence(
+                    ctx,
+                    source_type="rag_chunk",
+                    source_ref=str(item.get("source", ctx.task.rag_session_id)),
+                    snippet=snippet,
+                    score=0.9,
+                )
+            )
+        artifact_id = self.put(
+            ctx,
+            "sources",
+            ArtifactType.STRUCTURED_JSON,
+            payload,
+            meta={"evidence_ids": evidence_ids},
+        )
+        return [artifact_id]
+
+    def extract_logic(self, ctx: ExecutionContext) -> list[str]:
+        sources = self.get(ctx, "sources", {}) or {}
+        message = ctx.task.user_message
+        profile = str(sources.get("source_profile", "docs"))
+        ru = self._is_russian(message)
+        notes = (
+            "Используй код как основной источник и ссылайся на конкретные файлы и слои."
+            if profile == "code" and ru
+            else "Use code as the primary source and cite concrete files/layers."
+            if profile == "code"
+            else "Используй требования и документацию как основной источник."
+            if ru
+            else "Use requirements/docs as primary source over code."
+        )
+        logic = {
+            "request": message,
+            "assumptions": [f"{profile}-first"],
+            "notes": notes,
+            "source_summary": sources,
+        }
+        return [self.put(ctx, "logic_model", ArtifactType.STRUCTURED_JSON, logic)]
+
+    def summarize(self, ctx: ExecutionContext) -> list[str]:
+        sources = self.get(ctx, "sources", {}) or {}
+        profile = str(sources.get("source_profile", "docs"))
+        items = list(sources.get("rag_items", []) or [])
+        message = ctx.task.user_message
+        ru = self._is_russian(message)
+        answer = self._code_answer(items, russian=ru) if profile == "code" else self._docs_answer(items, russian=ru)
+        return [self.put(ctx, "final_answer", ArtifactType.TEXT, answer)]
+
+    def _source_profile(self, items: list[dict]) -> str:
+        layers = [str(item.get("layer", "") or "") for item in items]
+        if any(layer.startswith("C") for layer in layers):
+            return "code"
+        return "docs"
+
+    def _is_russian(self, text: str) -> bool:
+        return any("а" <= ch.lower() <= "я" or ch.lower() == "ё" for ch in text)
+
+    def _code_answer(self, items: list[dict], *, russian: bool) -> str:
+        if not items:
+            return (
+                "Не удалось найти релевантный кодовый контекст по этому запросу."
+                if russian
+                else "No relevant code context was found for this request."
+            )
+        details = self._code_details(items, russian=russian)
+        refs = self._code_references(items, russian=russian)
+        parts = [
+            "## Кратко" if russian else "## Summary",
+            details,
+        ]
+        if refs:
+            parts.append(refs)
+        return "\n\n".join(part for part in parts if part.strip())
+
+    def _docs_answer(self, items: list[dict], *, russian: bool) -> str:
+        return (
+            "Запрошенная часть проекта объяснена на основе требований и документации."
+            if russian
+            else "The requested project part is explained from requirements/docs context."
+        )
+
+    def _code_details(self, items: list[dict], *, russian: bool) -> str:
+        if not items:
+            return ""
+        symbol_items = [item for item in items if str(item.get("layer", "")) == "C1_SYMBOL_CATALOG"]
+        edge_items = [item for item in items if str(item.get("layer", "")) == "C2_DEPENDENCY_GRAPH"]
+        source_items = [item for item in items if str(item.get("layer", "")) == "C0_SOURCE_CHUNKS"]
+
+        lines = ["### Что видно по коду" if russian else "### What the code shows"]
+        alias = self._find_alias_symbol(symbol_items)
+        if alias:
+            imported_from = str(alias.get("metadata", {}).get("lang_payload", {}).get("imported_from", "")).strip()
+            if russian:
+                lines.append(f"- `ConfigManager` в проекте доступен как alias в `{alias.get('source', '')}` и указывает на `{imported_from}`.")
+            else:
+                lines.append(f"- `ConfigManager` is exposed as an alias in `{alias.get('source', '')}` and points to `{imported_from}`.")
+
+        management_hint = self._management_summary(symbol_items, edge_items, source_items, russian=russian)
+        if management_hint:
+            lines.extend(management_hint)
+
+        symbol_lines = 0
+        for item in symbol_items[:4]:
+            title = str(item.get("title", "") or "")
+            source = str(item.get("source", "") or "")
+            content = str(item.get("content", "") or "").strip()
+            summary = content.splitlines()[-1].strip() if content else ""
+            if not title:
+                continue
+            if self._is_test_path(source):
+                continue
+            if self._is_control_symbol(title):
+                continue
+            if russian:
+                lines.append(f"- Символ `{title}` из `{source}`: {summary}")
+            else:
+                lines.append(f"- Symbol `{title}` from `{source}`: {summary}")
+            symbol_lines += 1
+            if symbol_lines >= 2:
+                break
+
+        edge_map: dict[str, list[str]] = {}
+        for item in edge_items:
+            meta = item.get("metadata", {}) or {}
+            src_qname = str(meta.get("src_qname", "") or "").strip()
+            dst_ref = str(meta.get("dst_ref", "") or "").strip()
+            if not src_qname or not dst_ref:
+                continue
+            if self._is_test_path(str(item.get("source", "") or "")):
+                continue
+            edge_map.setdefault(src_qname, [])
+            if dst_ref not in edge_map[src_qname]:
+                edge_map[src_qname].append(dst_ref)
+        for src_qname, targets in list(edge_map.items())[:3]:
+            joined = ", ".join(targets[:4])
+            if russian:
+                lines.append(f"- `{src_qname}` вызывает или использует: {joined}.")
+            else:
+                lines.append(f"- `{src_qname}` calls or uses: {joined}.")
+
+        for item in source_items[:2]:
+            source = str(item.get("source", "") or "")
+            content = str(item.get("content", "") or "")
+            if self._is_test_path(source):
+                continue
+            if "management" in content.lower() or "control" in content.lower():
+                snippet = " ".join(content.splitlines()[:4]).strip()
+                if russian:
+                    lines.append(f"- В `{source}` есть прямое указание на управление через конфиг/API: `{snippet[:220]}`")
+                else:
+                    lines.append(f"- `{source}` directly mentions config/API control: `{snippet[:220]}`")
+
+        return "\n".join(lines)
+
+    def _code_references(self, items: list[dict], *, russian: bool) -> str:
+        paths = [str(item.get("source", "") or "") for item in items if item.get("source") and not self._is_test_path(str(item.get("source", "") or ""))]
+        if not paths:
+            return ""
+        lines = ["### Где смотреть в проекте" if russian else "### Where to look in the project"]
+        for path, _count in Counter(paths).most_common(3):
+            lines.append(f"- `{path}`")
+        return "\n".join(lines)
+
+    def _find_alias_symbol(self, items: list[dict]) -> dict | None:
+        for item in items:
+            meta = item.get("metadata", {}) or {}
+            payload = meta.get("lang_payload", {}) or {}
+            qname = str(meta.get("qname", "") or "")
+            if qname == "ConfigManager" and payload.get("import_alias"):
+                return item
+        return None
+
+    def _is_test_path(self, path: str) -> bool:
+        lowered = path.lower()
+        return lowered.startswith("tests/") or "/tests/" in lowered or lowered.startswith("test_") or "/test_" in lowered
+
+    def _is_control_symbol(self, title: str) -> bool:
+        lowered = title.lower()
+        return any(token in lowered for token in ("controlchannel", "controlchannelbridge", "on_start", "on_stop", "on_status"))
+
+    def _management_summary(
+        self,
+        symbol_items: list[dict],
+        edge_items: list[dict],
+        source_items: list[dict],
+        *,
+        russian: bool,
+    ) -> list[str]:
+        qnames = {str((item.get("metadata", {}) or {}).get("qname", "") or ""): item for item in symbol_items if not self._is_test_path(str(item.get("source", "") or ""))}
+        source_texts = [str(item.get("content", "") or "") for item in source_items if not self._is_test_path(str(item.get("source", "") or ""))]
+        result: list[str] = []
+
+        if any("управление через api" in text.lower() or "section management" in text.lower() or "секция management" in text.lower() for text in source_texts):
+            result.append(
+                "- Для `ConfigManager` в коде предусмотрен отдельный интерфейс управления через API/конфиг: это прямо указано в публичной точке входа модуля."
+                if russian
+                else "- `ConfigManager` has a dedicated API/config-based management interface; this is stated in the module's public entrypoint."
+            )
+
+        has_control_channel = "ControlChannel" in qnames
+        has_bridge = "ControlChannelBridge" in qnames
+        if has_control_channel:
+            result.append(
+                "- Базовый контракт управления задает `ControlChannel`: он определяет команды `start` и `stop` для внешнего канала управления."
+                if russian
+                else "- The base management contract is `ControlChannel`, which defines external `start` and `stop` commands."
+            )
+        if has_bridge:
+            result.append(
+                "- `ControlChannelBridge` связывает внешний канал управления с lifecycle-методами менеджера: `on_start`, `on_stop`, `on_status`."
+                if russian
+                else "- `ControlChannelBridge` maps the external control channel to manager lifecycle methods: `on_start`, `on_stop`, `on_status`."
+            )
+
+        edge_refs = []
+        for item in edge_items:
+            if self._is_test_path(str(item.get("source", "") or "")):
+                continue
+            meta = item.get("metadata", {}) or {}
+            src = str(meta.get("src_qname", "") or "")
+            dst = str(meta.get("dst_ref", "") or "")
+            if src.startswith("ControlChannelBridge.") and dst in {"self._start_runtime", "self._stop_runtime", "self._get_status"}:
+                edge_refs.append((src, dst))
+        if edge_refs:
+            mappings = ", ".join(f"{src} -> {dst}" for src, dst in edge_refs[:3])
+            result.append(
+                f"- По связям в коде видно, что команды управления маршрутизируются так: {mappings}."
+                if russian
+                else f"- The code relationships show the management command routing: {mappings}."
+            )
+        return result

app/modules/agent/engine/orchestrator/actions/gherkin_actions.py

@@ -0,0 +1,76 @@
+from __future__ import annotations
+
+from app.modules.agent.engine.orchestrator.actions.common import ActionSupport
+from app.modules.agent.engine.orchestrator.execution_context import ExecutionContext
+from app.modules.agent.engine.orchestrator.models import ArtifactType
+
+
+class GherkinActions(ActionSupport):
+    def extract_increment_scope(self, ctx: ExecutionContext) -> list[str]:
+        text = str(self.get(ctx, "source_doc_text", "") or ctx.task.user_message)
+        scope = {
+            "title": "Increment scope",
+            "summary": text[:220],
+            "entities": ["User", "System"],
+        }
+        return [self.put(ctx, "increment_scope", ArtifactType.STRUCTURED_JSON, scope)]
+
+    def partition_features(self, ctx: ExecutionContext) -> list[str]:
+        scope = self.get(ctx, "increment_scope", {}) or {}
+        groups = [
+            {"feature": "Main flow", "goal": scope.get("summary", "")},
+            {"feature": "Validation", "goal": "Input validation and error behavior"},
+        ]
+        return [self.put(ctx, "feature_groups", ArtifactType.STRUCTURED_JSON, groups)]
+
+    def generate_gherkin_bundle(self, ctx: ExecutionContext) -> list[str]:
+        groups = self.get(ctx, "feature_groups", []) or []
+        files = []
+        for idx, group in enumerate(groups, start=1):
+            feature_name = str(group.get("feature", f"Feature {idx}"))
+            content = "\n".join(
+                [
+                    f"Feature: {feature_name}",
+                    "  Scenario: Happy path",
+                    "    Given system is available",
+                    "    When user performs increment action",
+                    "    Then system applies expected increment behavior",
+                ]
+            )
+            files.append({"path": f"tests/gherkin/feature_{idx}.feature", "content": content})
+        return [self.put(ctx, "gherkin_bundle", ArtifactType.GHERKIN_BUNDLE, files)]
+
+    def lint_gherkin(self, ctx: ExecutionContext) -> list[str]:
+        bundle = self.get(ctx, "gherkin_bundle", []) or []
+        invalid = []
+        for item in bundle:
+            content = str(item.get("content", "")) if isinstance(item, dict) else ""
+            if "Feature:" not in content or "Scenario:" not in content:
+                invalid.append(str(item.get("path", "unknown")))
+        report = {"valid": len(invalid) == 0, "invalid_files": invalid}
+        return [self.put(ctx, "gherkin_lint_report", ArtifactType.STRUCTURED_JSON, report)]
+
+    def validate_coverage(self, ctx: ExecutionContext) -> list[str]:
+        bundle = self.get(ctx, "gherkin_bundle", []) or []
+        report = {"covered": len(bundle) > 0, "feature_files": len(bundle)}
+        return [self.put(ctx, "coverage_report", ArtifactType.STRUCTURED_JSON, report)]
+
+    def compose_test_model_summary(self, ctx: ExecutionContext) -> list[str]:
+        bundle = self.get(ctx, "gherkin_bundle", []) or []
+        summary = f"Prepared gherkin model with {len(bundle)} feature file(s)."
+        changeset = [
+            {
+                "op": "create",
+                "path": str(item.get("path", "")),
+                "base_hash": None,
+                "proposed_content": str(item.get("content", "")),
+                "reason": "generated gherkin feature",
+                "hunks": [],
+            }
+            for item in bundle
+            if isinstance(item, dict)
+        ]
+        return [
+            self.put(ctx, "final_answer", ArtifactType.TEXT, summary),
+            self.put(ctx, "final_changeset", ArtifactType.CHANGESET, changeset),
+        ]

app/modules/agent/engine/orchestrator/actions/project_qa_actions.py

@@ -0,0 +1,117 @@
+from __future__ import annotations
+
+from app.modules.agent.engine.orchestrator.actions.project_qa_analyzer import ProjectQaAnalyzer
+from app.modules.agent.engine.orchestrator.actions.common import ActionSupport
+from app.modules.agent.engine.orchestrator.actions.project_qa_support import ProjectQaSupport
+from app.modules.agent.engine.orchestrator.execution_context import ExecutionContext
+from app.modules.agent.engine.orchestrator.models import ArtifactType
+
+
+class ProjectQaActions(ActionSupport):
+    def __init__(self) -> None:
+        self._support = ProjectQaSupport()
+        self._analyzer = ProjectQaAnalyzer()
+
+    def classify_project_question(self, ctx: ExecutionContext) -> list[str]:
+        message = str(ctx.task.user_message or "")
+        profile = self._support.build_profile(message)
+        return [self.put(ctx, "question_profile", ArtifactType.STRUCTURED_JSON, profile)]
+
+    def collect_project_sources(self, ctx: ExecutionContext) -> list[str]:
+        profile = self.get(ctx, "question_profile", {}) or {}
+        terms = list(profile.get("terms", []) or [])
+        entities = list(profile.get("entities", []) or [])
+        rag_items = list(ctx.task.metadata.get("rag_items", []) or [])
+        files_map = dict(ctx.task.metadata.get("files_map", {}) or {})
+        explicit_test = any(term in {"test", "tests", "тест", "тесты"} for term in terms)
+
+        ranked_rag = []
+        for item in rag_items:
+            score = self._support.rag_score(item, terms, entities)
+            source = str(item.get("source", "") or "")
+            if not explicit_test and self._support.is_test_path(source):
+                score -= 3
+            if score > 0:
+                ranked_rag.append((score, item))
+        ranked_rag.sort(key=lambda pair: pair[0], reverse=True)
+
+        ranked_files = []
+        for path, payload in files_map.items():
+            score = self._support.file_score(path, payload, terms, entities)
+            if not explicit_test and self._support.is_test_path(path):
+                score -= 3
+            if score > 0:
+                ranked_files.append(
+                    (
+                        score,
+                        {
+                            "path": path,
+                            "content": str(payload.get("content", "")),
+                            "content_hash": str(payload.get("content_hash", "")),
+                        },
+                    )
+                )
+        ranked_files.sort(key=lambda pair: pair[0], reverse=True)
+
+        bundle = {
+            "profile": profile,
+            "rag_items": [item for _, item in ranked_rag[:12]],
+            "file_candidates": [item for _, item in ranked_files[:10]],
+            "rag_total": len(ranked_rag),
+            "files_total": len(ranked_files),
+        }
+        return [self.put(ctx, "source_bundle", ArtifactType.STRUCTURED_JSON, bundle)]
+
+    def analyze_project_sources(self, ctx: ExecutionContext) -> list[str]:
+        bundle = self.get(ctx, "source_bundle", {}) or {}
+        profile = bundle.get("profile", {}) or {}
+        rag_items = list(bundle.get("rag_items", []) or [])
+        file_candidates = list(bundle.get("file_candidates", []) or [])
+
+        if str(profile.get("domain")) == "code":
+            analysis = self._analyzer.analyze_code(profile, rag_items, file_candidates)
+        else:
+            analysis = self._analyzer.analyze_docs(profile, rag_items)
+        return [self.put(ctx, "analysis_brief", ArtifactType.STRUCTURED_JSON, analysis)]
+
+    def build_project_answer_brief(self, ctx: ExecutionContext) -> list[str]:
+        profile = self.get(ctx, "question_profile", {}) or {}
+        analysis = self.get(ctx, "analysis_brief", {}) or {}
+        brief = {
+            "question_profile": profile,
+            "resolved_subject": analysis.get("subject"),
+            "key_findings": analysis.get("findings", []),
+            "supporting_evidence": analysis.get("evidence", []),
+            "missing_evidence": analysis.get("gaps", []),
+            "answer_mode": analysis.get("answer_mode", "summary"),
+        }
+        return [self.put(ctx, "answer_brief", ArtifactType.STRUCTURED_JSON, brief)]
+
+    def compose_project_answer(self, ctx: ExecutionContext) -> list[str]:
+        brief = self.get(ctx, "answer_brief", {}) or {}
+        profile = brief.get("question_profile", {}) or {}
+        russian = bool(profile.get("russian"))
+        answer_mode = str(brief.get("answer_mode") or "summary")
+        findings = list(brief.get("key_findings", []) or [])
+        evidence = list(brief.get("supporting_evidence", []) or [])
+        gaps = list(brief.get("missing_evidence", []) or [])
+
+        title = "## Кратко" if russian else "## Summary"
+        lines = [title]
+        if answer_mode == "inventory":
+            lines.append("### Что реализовано" if russian else "### Implemented items")
+        else:
+            lines.append("### Что видно по проекту" if russian else "### What the project shows")
+        if findings:
+            lines.extend(f"- {item}" for item in findings)
+        else:
+            lines.append("Не удалось собрать подтвержденные выводы по доступным данным." if russian else "No supported findings could be assembled from the available data.")
+        if evidence:
+            lines.append("")
+            lines.append("### Где смотреть в проекте" if russian else "### Where to look in the project")
+            lines.extend(f"- `{item}`" for item in evidence[:5])
+        if gaps:
+            lines.append("")
+            lines.append("### Что пока не подтверждено кодом" if russian else "### What is not yet confirmed in code")
+            lines.extend(f"- {item}" for item in gaps[:3])
+        return [self.put(ctx, "final_answer", ArtifactType.TEXT, "\n".join(lines))]

app/modules/agent/engine/orchestrator/actions/project_qa_analyzer.py

@@ -0,0 +1,154 @@
+from __future__ import annotations
+
+
+class ProjectQaAnalyzer:
+    def analyze_code(self, profile: dict, rag_items: list[dict], file_candidates: list[dict]) -> dict:
+        terms = list(profile.get("terms", []) or [])
+        intent = str(profile.get("intent") or "lookup")
+        russian = bool(profile.get("russian"))
+        findings: list[str] = []
+        evidence: list[str] = []
+        gaps: list[str] = []
+
+        symbol_titles = [str(item.get("title", "") or "") for item in rag_items if str(item.get("layer", "")).startswith("C1")]
+        symbol_set = set(symbol_titles)
+        file_paths = [str(item.get("path", "") or item.get("source", "") or "") for item in rag_items]
+        file_paths.extend(str(item.get("path", "") or "") for item in file_candidates)
+
+        if "ConfigManager" in profile.get("entities", []) or "configmanager" in terms or "config_manager" in terms:
+            alias_file = self.find_path(file_paths, "src/config_manager/__init__.py")
+            if alias_file:
+                findings.append(
+                    "Публичный `ConfigManager` экспортируется из `src/config_manager/__init__.py` как alias на `ConfigManagerV2`."
+                    if russian
+                    else "Public `ConfigManager` is exported from `src/config_manager/__init__.py` as an alias to `ConfigManagerV2`."
+                )
+                evidence.append("src/config_manager/__init__.py")
+
+        if "controlchannel" in {name.lower() for name in symbol_set}:
+            findings.append(
+                "Базовый контракт управления задает `ControlChannel`: он определяет команды `start` и `stop` для внешнего канала управления."
+                if russian
+                else "`ControlChannel` defines the base management contract with `start` and `stop` commands."
+            )
+            evidence.append("src/config_manager/v2/control/base.py")
+
+        if "ControlChannelBridge" in symbol_set:
+            findings.append(
+                "`ControlChannelBridge` связывает внешний канал управления с lifecycle-методами менеджера: `on_start`, `on_stop`, `on_status`."
+                if russian
+                else "`ControlChannelBridge` connects the external control channel to manager lifecycle methods: `on_start`, `on_stop`, `on_status`."
+            )
+            evidence.append("src/config_manager/v2/core/control_bridge.py")
+
+        implementation_files = self.find_management_implementations(file_candidates)
+        if implementation_files:
+            labels = ", ".join(f"`{path}`" for path in implementation_files)
+            channel_names = self.implementation_names(implementation_files)
+            findings.append(
+                f"В коде найдены конкретные реализации каналов управления: {', '.join(channel_names)} ({labels})."
+                if russian
+                else f"Concrete management channel implementations were found in code: {', '.join(channel_names)} ({labels})."
+            )
+            evidence.extend(implementation_files)
+        elif intent == "inventory":
+            gaps.append(
+                "В текущем контексте не удалось уверенно подтвердить конкретные файлы-реализации каналов, кроме базового контракта и bridge-слоя."
+                if russian
+                else "The current context does not yet confirm concrete channel implementation files beyond the base contract and bridge layer."
+            )
+
+        package_doc = self.find_management_doc(file_candidates)
+        if package_doc:
+            findings.append(
+                f"Пакет управления прямо описывает внешние каналы через `{package_doc}`."
+                if russian
+                else f"The control package directly describes external channels in `{package_doc}`."
+            )
+            evidence.append(package_doc)
+
+        subject = "management channels"
+        if profile.get("entities"):
+            subject = ", ".join(profile["entities"])
+        return {
+            "subject": subject,
+            "findings": self.dedupe(findings),
+            "evidence": self.dedupe(evidence),
+            "gaps": gaps,
+            "answer_mode": "inventory" if intent == "inventory" else "summary",
+        }
+
+    def analyze_docs(self, profile: dict, rag_items: list[dict]) -> dict:
+        findings: list[str] = []
+        evidence: list[str] = []
+        for item in rag_items[:5]:
+            title = str(item.get("title", "") or "")
+            source = str(item.get("source", "") or "")
+            content = str(item.get("content", "") or "").strip()
+            if content:
+                findings.append(content.splitlines()[0][:220])
+            if source:
+                evidence.append(source)
+            elif title:
+                evidence.append(title)
+        return {
+            "subject": "docs",
+            "findings": self.dedupe(findings),
+            "evidence": self.dedupe(evidence),
+            "gaps": [] if findings else ["Недостаточно данных в документации." if profile.get("russian") else "Not enough data in documentation."],
+            "answer_mode": "summary",
+        }
+
+    def find_management_implementations(self, file_candidates: list[dict]) -> list[str]:
+        found: list[str] = []
+        for item in file_candidates:
+            path = str(item.get("path", "") or "")
+            lowered = path.lower()
+            if self.is_test_path(path):
+                continue
+            if any(token in lowered for token in ("http_channel.py", "telegram.py", "telegram_channel.py", "http.py")):
+                found.append(path)
+                continue
+            content = str(item.get("content", "") or "").lower()
+            if "controlchannel" in content and "class " in content:
+                found.append(path)
+                continue
+            if ("channel" in lowered or "control" in lowered) and any(token in content for token in ("http", "telegram", "bot")):
+                found.append(path)
+        return self.dedupe(found)[:4]
+
+    def implementation_names(self, paths: list[str]) -> list[str]:
+        names: list[str] = []
+        for path in paths:
+            stem = path.rsplit("/", 1)[-1].rsplit(".", 1)[0]
+            label = stem.replace("_", " ").strip()
+            if label and label not in names:
+                names.append(label)
+        return names
+
+    def find_management_doc(self, file_candidates: list[dict]) -> str | None:
+        for item in file_candidates:
+            path = str(item.get("path", "") or "")
+            if self.is_test_path(path):
+                continue
+            content = str(item.get("content", "") or "").lower()
+            if any(token in content for token in ("каналы внешнего управления", "external control channels", "http api", "telegram")):
+                return path
+        return None
+
+    def find_path(self, paths: list[str], target: str) -> str | None:
+        for path in paths:
+            if path == target:
+                return path
+        return None
+
+    def dedupe(self, items: list[str]) -> list[str]:
+        seen: list[str] = []
+        for item in items:
+            if item and item not in seen:
+                seen.append(item)
+        return seen
+
+    def is_test_path(self, path: str) -> bool:
+        lowered = path.lower()
+        return lowered.startswith("tests/") or "/tests/" in lowered or lowered.startswith("test_") or "/test_" in lowered

app/modules/agent/engine/orchestrator/actions/project_qa_support.py

@@ -0,0 +1,166 @@
+from __future__ import annotations
+
+import re
+
+from app.modules.rag.retrieval.query_terms import extract_query_terms
+
+
+class ProjectQaSupport:
+    def resolve_request(self, message: str) -> dict:
+        profile = self.build_profile(message)
+        subject = profile["entities"][0] if profile.get("entities") else ""
+        return {
+            "original_message": message,
+            "normalized_message": " ".join((message or "").split()),
+            "subject_hint": subject,
+            "source_hint": profile["domain"],
+            "russian": profile["russian"],
+        }
+
+    def build_profile(self, message: str) -> dict:
+        lowered = message.lower()
+        return {
+            "domain": "code" if self.looks_like_code_question(lowered) else "docs",
+            "intent": self.detect_intent(lowered),
+            "terms": extract_query_terms(message),
+            "entities": self.extract_entities(message),
+            "russian": self.is_russian(message),
+        }
+
+    def build_retrieval_query(self, resolved_request: dict, profile: dict) -> str:
+        normalized = str(resolved_request.get("normalized_message") or resolved_request.get("original_message") or "").strip()
+        if profile.get("domain") == "code" and "по коду" not in normalized.lower():
+            return f"по коду {normalized}".strip()
+        return normalized
+
+    def build_source_bundle(self, profile: dict, rag_items: list[dict], files_map: dict[str, dict]) -> dict:
+        terms = list(profile.get("terms", []) or [])
+        entities = list(profile.get("entities", []) or [])
+        explicit_test = any(term in {"test", "tests", "тест", "тесты"} for term in terms)
+
+        ranked_rag: list[tuple[int, dict]] = []
+        for item in rag_items:
+            score = self.rag_score(item, terms, entities)
+            source = str(item.get("source", "") or "")
+            if not explicit_test and self.is_test_path(source):
+                score -= 3
+            if score > 0:
+                ranked_rag.append((score, item))
+        ranked_rag.sort(key=lambda pair: pair[0], reverse=True)
+
+        ranked_files: list[tuple[int, dict]] = []
+        for path, payload in files_map.items():
+            score = self.file_score(path, payload, terms, entities)
+            if not explicit_test and self.is_test_path(path):
+                score -= 3
+            if score > 0:
+                ranked_files.append(
+                    (
+                        score,
+                        {
+                            "path": path,
+                            "content": str(payload.get("content", "")),
+                            "content_hash": str(payload.get("content_hash", "")),
+                        },
+                    )
+                )
+        ranked_files.sort(key=lambda pair: pair[0], reverse=True)
+
+        return {
+            "profile": profile,
+            "rag_items": [item for _, item in ranked_rag[:12]],
+            "file_candidates": [item for _, item in ranked_files[:10]],
+            "rag_total": len(ranked_rag),
+            "files_total": len(ranked_files),
+        }
+
+    def build_answer_brief(self, profile: dict, analysis: dict) -> dict:
+        return {
+            "question_profile": profile,
+            "resolved_subject": analysis.get("subject"),
+            "key_findings": analysis.get("findings", []),
+            "supporting_evidence": analysis.get("evidence", []),
+            "missing_evidence": analysis.get("gaps", []),
+            "answer_mode": analysis.get("answer_mode", "summary"),
+        }
+
+    def compose_answer(self, brief: dict) -> str:
+        profile = brief.get("question_profile", {}) or {}
+        russian = bool(profile.get("russian"))
+        answer_mode = str(brief.get("answer_mode") or "summary")
+        findings = list(brief.get("key_findings", []) or [])
+        evidence = list(brief.get("supporting_evidence", []) or [])
+        gaps = list(brief.get("missing_evidence", []) or [])
+
+        title = "## Кратко" if russian else "## Summary"
+        lines = [title]
+        lines.append("### Что реализовано" if answer_mode == "inventory" and russian else "### Implemented items" if answer_mode == "inventory" else "### Что видно по проекту" if russian else "### What the project shows")
+        if findings:
+            lines.extend(f"- {item}" for item in findings)
+        else:
+            lines.append("Не удалось собрать подтвержденные выводы по доступным данным." if russian else "No supported findings could be assembled from the available data.")
+        if evidence:
+            lines.append("")
+            lines.append("### Где смотреть в проекте" if russian else "### Where to look in the project")
+            lines.extend(f"- `{item}`" for item in evidence[:5])
+        if gaps:
+            lines.append("")
+            lines.append("### Что пока не подтверждено кодом" if russian else "### What is not yet confirmed in code")
+            lines.extend(f"- {item}" for item in gaps[:3])
+        return "\n".join(lines)
+
+    def detect_intent(self, lowered: str) -> str:
+        if any(token in lowered for token in ("какие", "что уже реализ", "список", "перечень", "какие есть")):
+            return "inventory"
+        if any(token in lowered for token in ("где", "find", "where")):
+            return "lookup"
+        if any(token in lowered for token in ("сравни", "compare")):
+            return "compare"
+        return "explain"
+
+    def looks_like_code_question(self, lowered: str) -> bool:
+        code_markers = ("по коду", "код", "реализ", "имплементац", "класс", "метод", "модул", "файл", "канал", "handler", "endpoint")
+        return any(marker in lowered for marker in code_markers) or bool(re.search(r"\b[A-Z][A-Za-z0-9_]{2,}\b", lowered))
+
+    def extract_entities(self, message: str) -> list[str]:
+        return re.findall(r"\b[A-Z][A-Za-z0-9_]{2,}\b", message)[:5]
+
+    def rag_score(self, item: dict, terms: list[str], entities: list[str]) -> int:
+        haystacks = [
+            str(item.get("source", "") or "").lower(),
+            str(item.get("title", "") or "").lower(),
+            str(item.get("content", "") or "").lower(),
+            str((item.get("metadata", {}) or {}).get("qname", "") or "").lower(),
+        ]
+        score = 0
+        for term in terms:
+            if any(term in hay for hay in haystacks):
+                score += 3
+        for entity in entities:
+            if any(entity.lower() in hay for hay in haystacks):
+                score += 5
+        return score
+
+    def file_score(self, path: str, payload: dict, terms: list[str], entities: list[str]) -> int:
+        content = str(payload.get("content", "") or "").lower()
+        path_lower = path.lower()
+        score = 0
+        for term in terms:
+            if term in path_lower:
+                score += 4
+            elif term in content:
+                score += 2
+        for entity in entities:
+            entity_lower = entity.lower()
+            if entity_lower in path_lower:
+                score += 5
+            elif entity_lower in content:
+                score += 3
+        return score
+
+    def is_test_path(self, path: str) -> bool:
+        lowered = path.lower()
+        return lowered.startswith("tests/") or "/tests/" in lowered or lowered.startswith("test_") or "/test_" in lowered
+
+    def is_russian(self, text: str) -> bool:
+        return any("а" <= ch.lower() <= "я" or ch.lower() == "ё" for ch in text)

app/modules/agent/engine/orchestrator/actions/review_actions.py

@@ -0,0 +1,102 @@
+from __future__ import annotations
+
+from urllib.parse import urlparse
+
+from app.modules.agent.engine.orchestrator.actions.common import ActionSupport
+from app.modules.agent.engine.orchestrator.execution_context import ExecutionContext
+from app.modules.agent.engine.orchestrator.models import ArtifactType
+
+
+class ReviewActions(ActionSupport):
+    def fetch_source_doc(self, ctx: ExecutionContext) -> list[str]:
+        attachment = next((a for a in ctx.task.attachments if a.value), None)
+        if attachment is None:
+            text = ctx.task.user_message
+            source_ref = "inline:message"
+        else:
+            parsed = urlparse(attachment.value)
+            source_ref = attachment.value
+            text = f"Source: {parsed.netloc}\nPath: {parsed.path}\nRequest: {ctx.task.user_message}"
+        evidence_id = self.add_evidence(
+            ctx,
+            source_type="external_doc",
+            source_ref=source_ref,
+            snippet=text,
+            score=0.75,
+        )
+        return [
+            self.put(
+                ctx,
+                "source_doc_raw",
+                ArtifactType.TEXT,
+                text,
+                meta={"source_ref": source_ref, "evidence_ids": [evidence_id]},
+            )
+        ]
+
+    def normalize_document(self, ctx: ExecutionContext) -> list[str]:
+        raw = str(self.get(ctx, "source_doc_raw", "") or "")
+        normalized = "\n".join(line.rstrip() for line in raw.splitlines()).strip()
+        return [self.put(ctx, "source_doc_text", ArtifactType.TEXT, normalized)]
+
+    def structural_check(self, ctx: ExecutionContext) -> list[str]:
+        text = str(self.get(ctx, "source_doc_text", "") or "")
+        required = ["цель", "границ", "риски", "api", "данные"]
+        found = [token for token in required if token in text.lower()]
+        findings = {
+            "required_sections": required,
+            "found_markers": found,
+            "missing_markers": [token for token in required if token not in found],
+        }
+        return [self.put(ctx, "structural_findings", ArtifactType.STRUCTURED_JSON, findings)]
+
+    def semantic_consistency_check(self, ctx: ExecutionContext) -> list[str]:
+        text = str(self.get(ctx, "source_doc_text", "") or "")
+        contradictions = []
+        if "без изменений" in text.lower() and "новый" in text.lower():
+            contradictions.append("Contains both 'no changes' and 'new behavior' markers.")
+        payload = {"contradictions": contradictions, "status": "ok" if not contradictions else "needs_attention"}
+        return [self.put(ctx, "semantic_findings", ArtifactType.STRUCTURED_JSON, payload)]
+
+    def architecture_fit_check(self, ctx: ExecutionContext) -> list[str]:
+        text = str(self.get(ctx, "source_doc_text", "") or "")
+        files_count = len(dict(ctx.task.metadata.get("files_map", {}) or {}))
+        payload = {
+            "architecture_fit": "medium" if files_count == 0 else "high",
+            "notes": "Evaluate fit against existing docs and interfaces.",
+            "markers": ["integration"] if "integr" in text.lower() else [],
+        }
+        return [self.put(ctx, "architecture_findings", ArtifactType.STRUCTURED_JSON, payload)]
+
+    def optimization_check(self, ctx: ExecutionContext) -> list[str]:
+        text = str(self.get(ctx, "source_doc_text", "") or "")
+        has_perf = any(token in text.lower() for token in ("latency", "performance", "оптим"))
+        payload = {
+            "optimization_considered": has_perf,
+            "recommendation": "Add explicit non-functional targets." if not has_perf else "Optimization criteria present.",
+        }
+        return [self.put(ctx, "optimization_findings", ArtifactType.STRUCTURED_JSON, payload)]
+
+    def compose_review_report(self, ctx: ExecutionContext) -> list[str]:
+        structural = self.get(ctx, "structural_findings", {}) or {}
+        semantic = self.get(ctx, "semantic_findings", {}) or {}
+        architecture = self.get(ctx, "architecture_findings", {}) or {}
+        optimization = self.get(ctx, "optimization_findings", {}) or {}
+        report = "\n".join(
+            [
+                "## Findings",
+                f"- Missing structure markers: {', '.join(structural.get('missing_markers', [])) or 'none'}",
+                f"- Contradictions: {len(semantic.get('contradictions', []))}",
+                f"- Architecture fit: {architecture.get('architecture_fit', 'unknown')}",
+                f"- Optimization: {optimization.get('recommendation', 'n/a')}",
+                "",
+                "## Recommendations",
+                "- Clarify boundaries and data contracts.",
+                "- Add explicit error and rollback behavior.",
+                "- Add measurable non-functional requirements.",
+            ]
+        )
+        return [
+            self.put(ctx, "review_report", ArtifactType.REVIEW_REPORT, report),
+            self.put(ctx, "final_answer", ArtifactType.TEXT, report),
+        ]

app/modules/agent/engine/orchestrator/artifact_store.py

@@ -0,0 +1,50 @@
+from __future__ import annotations
+
+from uuid import uuid4
+
+from app.modules.agent.engine.orchestrator.models import ArtifactItem, ArtifactType
+
+
+class ArtifactStore:
+    def __init__(self) -> None:
+        self._by_id: dict[str, ArtifactItem] = {}
+        self._by_key: dict[str, ArtifactItem] = {}
+
+    def put(self, *, key: str, artifact_type: ArtifactType, content=None, meta: dict | None = None) -> ArtifactItem:
+        item_meta = dict(meta or {})
+        if content is not None and not isinstance(content, str):
+            item_meta.setdefault("value", content)
+        item = ArtifactItem(
+            artifact_id=f"artifact_{uuid4().hex}",
+            key=key,
+            type=artifact_type,
+            content=self._as_content(content),
+            meta=item_meta,
+        )
+        self._by_id[item.artifact_id] = item
+        self._by_key[key] = item
+        return item
+
+    def get(self, key: str) -> ArtifactItem | None:
+        return self._by_key.get(key)
+
+    def get_content(self, key: str, default=None):
+        item = self.get(key)
+        if item is None:
+            return default
+        if item.content is not None:
+            return item.content
+        return item.meta.get("value", default)
+
+    def has(self, key: str) -> bool:
+        return key in self._by_key
+
+    def all_items(self) -> list[ArtifactItem]:
+        return list(self._by_id.values())
+
+    def _as_content(self, value):
+        if value is None:
+            return None
+        if isinstance(value, str):
+            return value
+        return None

app/modules/agent/engine/orchestrator/evidence_store.py

@@ -0,0 +1,14 @@
+from __future__ import annotations
+
+from app.modules.agent.engine.orchestrator.models import EvidenceItem
+
+
+class EvidenceStore:
+    def __init__(self) -> None:
+        self._items: list[EvidenceItem] = []
+
+    def put_many(self, items: list[EvidenceItem]) -> None:
+        self._items.extend(items)
+
+    def all_items(self) -> list[EvidenceItem]:
+        return list(self._items)

app/modules/agent/engine/orchestrator/execution_context.py

@@ -0,0 +1,30 @@
+from __future__ import annotations
+
+from collections.abc import Awaitable, Callable
+from dataclasses import dataclass
+from typing import Any
+
+from app.modules.agent.engine.orchestrator.artifact_store import ArtifactStore
+from app.modules.agent.engine.orchestrator.evidence_store import EvidenceStore
+from app.modules.agent.engine.orchestrator.models import ExecutionPlan, TaskSpec
+
+ProgressCallback = Callable[[str, str, str, dict | None], Awaitable[None] | None]
+GraphResolver = Callable[[str, str], Any]
+GraphInvoker = Callable[[Any, dict, str], dict]
+
+
+@dataclass
+class ExecutionContext:
+    task: TaskSpec
+    plan: ExecutionPlan
+    graph_resolver: GraphResolver
+    graph_invoker: GraphInvoker
+    progress_cb: ProgressCallback | None = None
+    artifacts: ArtifactStore | None = None
+    evidences: EvidenceStore | None = None
+
+    def __post_init__(self) -> None:
+        if self.artifacts is None:
+            self.artifacts = ArtifactStore()
+        if self.evidences is None:
+            self.evidences = EvidenceStore()

app/modules/agent/engine/orchestrator/execution_engine.py

@@ -0,0 +1,146 @@
+from __future__ import annotations
+
+import asyncio
+import inspect
+import logging
+import time
+
+from app.modules.agent.engine.orchestrator.execution_context import ExecutionContext
+from app.modules.agent.engine.orchestrator.models import PlanStatus, PlanStep, StepResult, StepStatus
+from app.modules.agent.engine.orchestrator.quality_gates import QualityGateRunner
+from app.modules.agent.engine.orchestrator.step_registry import StepRegistry
+
+LOGGER = logging.getLogger(__name__)
+
+
+class ExecutionEngine:
+    def __init__(self, step_registry: StepRegistry, gates: QualityGateRunner) -> None:
+        self._steps = step_registry
+        self._gates = gates
+
+    async def run(self, ctx: ExecutionContext) -> list[StepResult]:
+        ctx.plan.status = PlanStatus.RUNNING
+        step_results: list[StepResult] = []
+
+        for step in ctx.plan.steps:
+            dep_issue = self._dependency_issue(step, step_results)
+            if dep_issue:
+                result = StepResult(
+                        step_id=step.step_id,
+                        status=StepStatus.SKIPPED,
+                        warnings=[dep_issue],
+                    )
+                step_results.append(result)
+                self._log_step_result(ctx, step, result)
+                continue
+
+            result = await self._run_with_retry(step, ctx)
+            step_results.append(result)
+            self._log_step_result(ctx, step, result)
+            if result.status in {StepStatus.FAILED, StepStatus.RETRY_EXHAUSTED} and step.on_failure == "fail":
+                ctx.plan.status = PlanStatus.FAILED
+                return step_results
+
+        passed, global_messages = self._gates.check_global(ctx.plan.global_gates, ctx)
+        if not passed:
+            step_results.append(
+                StepResult(
+                    step_id="global_gates",
+                    status=StepStatus.FAILED,
+                    warnings=global_messages,
+                )
+            )
+            ctx.plan.status = PlanStatus.FAILED
+            return step_results
+
+        if any(item.status in {StepStatus.FAILED, StepStatus.RETRY_EXHAUSTED} for item in step_results):
+            ctx.plan.status = PlanStatus.FAILED
+        elif any(item.status == StepStatus.SKIPPED for item in step_results):
+            ctx.plan.status = PlanStatus.PARTIAL
+        else:
+            ctx.plan.status = PlanStatus.COMPLETED
+        return step_results
+
+    async def _run_with_retry(self, step: PlanStep, ctx: ExecutionContext) -> StepResult:
+        max_attempts = max(1, int(step.retry.max_attempts or 1))
+        attempt = 0
+        last_error: Exception | None = None
+
+        while attempt < max_attempts:
+            attempt += 1
+            started_at = time.monotonic()
+            LOGGER.warning(
+                "orchestrator step start: task_id=%s step_id=%s action_id=%s executor=%s attempt=%s graph_id=%s",
+                ctx.task.task_id,
+                step.step_id,
+                step.action_id,
+                step.executor,
+                attempt,
+                step.graph_id or "",
+            )
+            await self._emit_progress(ctx, f"orchestrator.step.{step.step_id}", step.title)
+
+            try:
+                artifact_ids = await self._steps.execute(step, ctx)
+                passed, gate_messages = self._gates.check_step(step, ctx)
+                if not passed:
+                    raise RuntimeError(";".join(gate_messages) or "step_quality_gate_failed")
+
+                elapsed = int((time.monotonic() - started_at) * 1000)
+                return StepResult(
+                    step_id=step.step_id,
+                    status=StepStatus.SUCCESS,
+                    produced_artifact_ids=artifact_ids,
+                    warnings=gate_messages,
+                    duration_ms=elapsed,
+                )
+            except Exception as exc:
+                last_error = exc
+                if attempt < max_attempts and step.retry.backoff_sec > 0:
+                    await asyncio.sleep(step.retry.backoff_sec)
+
+        elapsed = int((time.monotonic() - started_at) * 1000)
+        return StepResult(
+            step_id=step.step_id,
+            status=StepStatus.RETRY_EXHAUSTED if max_attempts > 1 else StepStatus.FAILED,
+            error_code="step_execution_failed",
+            error_message=str(last_error) if last_error else "step_execution_failed",
+            duration_ms=elapsed,
+        )
+
+    def _dependency_issue(self, step: PlanStep, results: list[StepResult]) -> str | None:
+        if not step.depends_on:
+            return None
+        by_step = {item.step_id: item for item in results}
+        for dep in step.depends_on:
+            dep_result = by_step.get(dep)
+            if dep_result is None:
+                return f"dependency_not_executed:{dep}"
+            if dep_result.status != StepStatus.SUCCESS:
+                return f"dependency_not_success:{dep}:{dep_result.status.value}"
+        return None
+
+    async def _emit_progress(self, ctx: ExecutionContext, stage: str, message: str) -> None:
+        if ctx.progress_cb is None:
+            return
+        result = ctx.progress_cb(stage, message, "task_progress", {"layer": "orchestrator"})
+        if inspect.isawaitable(result):
+            await result
+
+    def _log_step_result(self, ctx: ExecutionContext, step: PlanStep, result: StepResult) -> None:
+        artifact_keys = []
+        for artifact_id in result.produced_artifact_ids:
+            item = next((artifact for artifact in ctx.artifacts.all_items() if artifact.artifact_id == artifact_id), None)
+            if item is not None:
+                artifact_keys.append(item.key)
+        LOGGER.warning(
+            "orchestrator step result: task_id=%s step_id=%s action_id=%s status=%s duration_ms=%s artifact_keys=%s warnings=%s error=%s",
+            ctx.task.task_id,
+            step.step_id,
+            step.action_id,
+            result.status.value,
+            result.duration_ms,
+            artifact_keys,
+            result.warnings,
+            result.error_message or "",
+        )

app/modules/agent/engine/orchestrator/metrics_persister.py

@@ -0,0 +1,36 @@
+from __future__ import annotations
+
+import logging
+
+from app.modules.agent.repository import AgentRepository
+
+LOGGER = logging.getLogger(__name__)
+
+
+class MetricsPersister:
+    def __init__(self, repository: AgentRepository) -> None:
+        self._repository = repository
+
+    def save(
+        self,
+        *,
+        task_id: str,
+        dialog_session_id: str,
+        rag_session_id: str,
+        scenario: str,
+        domain_id: str,
+        process_id: str,
+        quality: dict,
+    ) -> None:
+        try:
+            self._repository.save_quality_metrics(
+                task_id=task_id,
+                dialog_session_id=dialog_session_id,
+                rag_session_id=rag_session_id,
+                scenario=scenario,
+                domain_id=domain_id,
+                process_id=process_id,
+                quality=quality,
+            )
+        except Exception:
+            LOGGER.exception("Failed to persist quality metrics: task_id=%s", task_id)

app/modules/agent/engine/orchestrator/models/__init__.py

@@ -0,0 +1,51 @@
+from app.modules.agent.engine.orchestrator.models.plan import (
+    ArtifactSpec,
+    ArtifactType,
+    ExecutionPlan,
+    PlanStatus,
+    PlanStep,
+    QualityGateRef,
+    RetryPolicy,
+)
+from app.modules.agent.engine.orchestrator.models.result import (
+    ArtifactItem,
+    EvidenceItem,
+    OrchestratorResult,
+    StepResult,
+    StepStatus,
+)
+from app.modules.agent.engine.orchestrator.models.task_spec import (
+    AttachmentRef,
+    FileRef,
+    OutputContract,
+    OutputSection,
+    RoutingMeta,
+    Scenario,
+    SourcePolicy,
+    TaskConstraints,
+    TaskSpec,
+)
+
+__all__ = [
+    "ArtifactItem",
+    "ArtifactSpec",
+    "ArtifactType",
+    "AttachmentRef",
+    "EvidenceItem",
+    "ExecutionPlan",
+    "FileRef",
+    "OrchestratorResult",
+    "OutputContract",
+    "OutputSection",
+    "PlanStatus",
+    "PlanStep",
+    "QualityGateRef",
+    "RetryPolicy",
+    "RoutingMeta",
+    "Scenario",
+    "SourcePolicy",
+    "StepResult",
+    "StepStatus",
+    "TaskConstraints",
+    "TaskSpec",
+]

app/modules/agent/engine/orchestrator/models/plan.py

@@ -0,0 +1,88 @@
+from __future__ import annotations
+
+from enum import Enum
+from typing import Any, Literal
+
+from pydantic import BaseModel, ConfigDict, Field
+
+from app.modules.agent.engine.orchestrator.models.task_spec import Scenario
+
+
+class ArtifactType(str, Enum):
+    TEXT = "text"
+    REVIEW_REPORT = "review_report"
+    CHANGESET = "changeset"
+    DOC_BUNDLE = "doc_bundle"
+    GHERKIN_BUNDLE = "gherkin_bundle"
+    STRUCTURED_JSON = "structured_json"
+
+
+class PlanStatus(str, Enum):
+    DRAFT = "draft"
+    VALIDATED = "validated"
+    RUNNING = "running"
+    COMPLETED = "completed"
+    FAILED = "failed"
+    PARTIAL = "partial"
+
+
+class InputBinding(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    name: str
+    from_key: str
+    required: bool = True
+
+
+class ArtifactSpec(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    key: str
+    type: ArtifactType
+    required: bool = True
+
+
+class RetryPolicy(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    max_attempts: int = 1
+    backoff_sec: int = 0
+
+
+class QualityGateRef(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    gate_id: str
+    blocking: bool = True
+
+
+class PlanStep(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    step_id: str
+    title: str
+    action_id: str
+    executor: Literal["function", "graph"]
+    graph_id: str | None = None
+    depends_on: list[str] = Field(default_factory=list)
+    inputs: list[InputBinding] = Field(default_factory=list)
+    outputs: list[ArtifactSpec] = Field(default_factory=list)
+    side_effect: Literal["read", "write", "external"] = "read"
+    retry: RetryPolicy = Field(default_factory=RetryPolicy)
+    timeout_sec: int = 120
+    on_failure: Literal["fail", "skip", "replan"] = "fail"
+    quality_gates: list[QualityGateRef] = Field(default_factory=list)
+
+
+class ExecutionPlan(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    plan_id: str
+    task_id: str
+    scenario: Scenario
+    template_id: str
+    template_version: str
+    status: PlanStatus = PlanStatus.DRAFT
+    steps: list[PlanStep]
+    variables: dict[str, Any] = Field(default_factory=dict)
+    global_gates: list[QualityGateRef] = Field(default_factory=list)

app/modules/agent/engine/orchestrator/models/result.py

@@ -0,0 +1,62 @@
+from __future__ import annotations
+
+from enum import Enum
+from typing import Any, Literal
+
+from pydantic import BaseModel, ConfigDict, Field
+
+from app.modules.agent.engine.orchestrator.models.plan import ArtifactType
+from app.schemas.changeset import ChangeItem
+
+
+class StepStatus(str, Enum):
+    SUCCESS = "success"
+    FAILED = "failed"
+    SKIPPED = "skipped"
+    RETRY_EXHAUSTED = "retry_exhausted"
+
+
+class EvidenceItem(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    evidence_id: str
+    source_type: Literal["rag_chunk", "project_file", "external_doc", "confluence"]
+    source_ref: str
+    snippet: str
+    score: float = Field(ge=0.0, le=1.0)
+
+
+class ArtifactItem(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    artifact_id: str
+    key: str
+    type: ArtifactType
+    content: str | None = None
+    path: str | None = None
+    content_hash: str | None = None
+    meta: dict[str, Any] = Field(default_factory=dict)
+
+
+class StepResult(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    step_id: str
+    status: StepStatus
+    produced_artifact_ids: list[str] = Field(default_factory=list)
+    evidence_ids: list[str] = Field(default_factory=list)
+    warnings: list[str] = Field(default_factory=list)
+    error_code: str | None = None
+    error_message: str | None = None
+    duration_ms: int = 0
+    token_usage: int | None = None
+    replan_hint: str | None = None
+
+
+class OrchestratorResult(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    answer: str | None = None
+    changeset: list[ChangeItem] = Field(default_factory=list)
+    meta: dict[str, Any] = Field(default_factory=dict)
+    steps: list[StepResult] = Field(default_factory=list)

app/modules/agent/engine/orchestrator/models/task_spec.py

@@ -0,0 +1,93 @@
+from __future__ import annotations
+
+from enum import Enum
+from typing import Any, Literal
+
+from pydantic import BaseModel, ConfigDict, Field
+
+
+class Scenario(str, Enum):
+    EXPLAIN_PART = "explain_part"
+    ANALYTICS_REVIEW = "analytics_review"
+    DOCS_FROM_ANALYTICS = "docs_from_analytics"
+    TARGETED_EDIT = "targeted_edit"
+    GHERKIN_MODEL = "gherkin_model"
+    GENERAL_QA = "general_qa"
+
+
+class AttachmentRef(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    type: Literal["confluence_url", "http_url", "file_ref"]
+    value: str
+
+
+class FileRef(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    path: str
+    content: str = ""
+    content_hash: str = ""
+
+
+class RoutingMeta(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    domain_id: str
+    process_id: str
+    confidence: float = Field(ge=0.0, le=1.0)
+    reason: str = ""
+    fallback_used: bool = False
+
+
+class SourcePolicy(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    priority: list[Literal["requirements", "tech_docs", "code", "external_doc"]] = Field(
+        default_factory=lambda: ["requirements", "tech_docs", "code"]
+    )
+    require_evidence: bool = True
+    max_sources_per_step: int = 12
+
+
+class TaskConstraints(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    allow_writes: bool = False
+    max_steps: int = 20
+    max_retries_per_step: int = 2
+    step_timeout_sec: int = 120
+    target_paths: list[str] = Field(default_factory=list)
+
+
+class OutputSection(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    name: str
+    format: Literal["markdown", "mermaid", "gherkin", "json", "changeset"]
+    required: bool = True
+
+
+class OutputContract(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    result_type: Literal["answer", "changeset", "review_report", "doc_bundle", "gherkin_bundle"]
+    sections: list[OutputSection] = Field(default_factory=list)
+
+
+class TaskSpec(BaseModel):
+    model_config = ConfigDict(extra="forbid")
+
+    task_id: str
+    dialog_session_id: str
+    rag_session_id: str
+    mode: str = "auto"
+    user_message: str
+    scenario: Scenario
+    routing: RoutingMeta
+    attachments: list[AttachmentRef] = Field(default_factory=list)
+    files: list[FileRef] = Field(default_factory=list)
+    source_policy: SourcePolicy = Field(default_factory=SourcePolicy)
+    constraints: TaskConstraints = Field(default_factory=TaskConstraints)
+    output_contract: OutputContract
+    metadata: dict[str, Any] = Field(default_factory=dict)

app/modules/agent/engine/orchestrator/plan_compiler.py

@@ -0,0 +1,30 @@
+from __future__ import annotations
+
+from app.modules.agent.engine.orchestrator.models import ExecutionPlan, PlanStatus, TaskSpec
+
+
+class PlanCompiler:
+    def compile(self, template: ExecutionPlan, task: TaskSpec) -> ExecutionPlan:
+        plan = template.model_copy(deep=True)
+        plan.plan_id = f"{task.task_id}:{template.template_id}"
+        plan.task_id = task.task_id
+        plan.status = PlanStatus.DRAFT
+        plan.variables = {
+            "scenario": task.scenario.value,
+            "route": {
+                "domain_id": task.routing.domain_id,
+                "process_id": task.routing.process_id,
+                "confidence": task.routing.confidence,
+            },
+        }
+
+        for step in plan.steps:
+            step.timeout_sec = max(1, min(step.timeout_sec, task.constraints.step_timeout_sec))
+            step.retry.max_attempts = max(1, min(step.retry.max_attempts, task.constraints.max_retries_per_step))
+            if step.side_effect == "write" and not task.constraints.allow_writes:
+                step.on_failure = "fail"
+
+        if len(plan.steps) > task.constraints.max_steps:
+            plan.steps = plan.steps[: task.constraints.max_steps]
+
+        return plan

app/modules/agent/engine/orchestrator/plan_validator.py

@@ -0,0 +1,79 @@
+from __future__ import annotations
+
+from app.modules.agent.engine.orchestrator.models import ExecutionPlan, TaskSpec
+
+
+class PlanValidator:
+    def validate(self, plan: ExecutionPlan, task: TaskSpec) -> list[str]:
+        errors: list[str] = []
+        if not plan.steps:
+            errors.append("execution_plan_has_no_steps")
+            return errors
+
+        if len(plan.steps) > task.constraints.max_steps:
+            errors.append("execution_plan_exceeds_max_steps")
+
+        errors.extend(self._validate_step_ids(plan))
+        errors.extend(self._validate_dependencies(plan))
+        errors.extend(self._validate_side_effects(plan, task))
+        errors.extend(self._validate_step_shape(plan))
+        return errors
+
+    def _validate_step_ids(self, plan: ExecutionPlan) -> list[str]:
+        seen: set[str] = set()
+        out: list[str] = []
+        for step in plan.steps:
+            if step.step_id in seen:
+                out.append(f"duplicate_step_id:{step.step_id}")
+            seen.add(step.step_id)
+        return out
+
+    def _validate_dependencies(self, plan: ExecutionPlan) -> list[str]:
+        out: list[str] = []
+        valid_ids = {step.step_id for step in plan.steps}
+        for step in plan.steps:
+            for dep in step.depends_on:
+                if dep not in valid_ids:
+                    out.append(f"unknown_dependency:{step.step_id}->{dep}")
+
+        # lightweight cycle detection for directed graph
+        graph = {step.step_id: list(step.depends_on) for step in plan.steps}
+        visiting: set[str] = set()
+        visited: set[str] = set()
+
+        def dfs(node: str) -> bool:
+            if node in visiting:
+                return True
+            if node in visited:
+                return False
+            visiting.add(node)
+            for dep in graph.get(node, []):
+                if dfs(dep):
+                    return True
+            visiting.remove(node)
+            visited.add(node)
+            return False
+
+        if any(dfs(node) for node in graph):
+            out.append("dependency_cycle_detected")
+        return out
+
+    def _validate_side_effects(self, plan: ExecutionPlan, task: TaskSpec) -> list[str]:
+        if task.constraints.allow_writes:
+            return []
+        out: list[str] = []
+        for step in plan.steps:
+            if step.side_effect == "write":
+                out.append(f"write_step_not_allowed:{step.step_id}")
+        return out
+
+    def _validate_step_shape(self, plan: ExecutionPlan) -> list[str]:
+        out: list[str] = []
+        for step in plan.steps:
+            if step.executor == "graph" and not step.graph_id:
+                out.append(f"graph_step_missing_graph_id:{step.step_id}")
+            if step.retry.max_attempts < 1:
+                out.append(f"invalid_retry_attempts:{step.step_id}")
+            if step.timeout_sec < 1:
+                out.append(f"invalid_step_timeout:{step.step_id}")
+        return out

app/modules/agent/engine/orchestrator/quality_gates.py

@@ -0,0 +1,116 @@
+from __future__ import annotations
+
+from app.modules.agent.engine.orchestrator.execution_context import ExecutionContext
+from app.modules.agent.engine.orchestrator.models import PlanStep, QualityGateRef
+
+
+class QualityGateRunner:
+    def check_step(self, step: PlanStep, ctx: ExecutionContext) -> tuple[bool, list[str]]:
+        return self._run(step.quality_gates, step=step, ctx=ctx)
+
+    def check_global(self, gates: list[QualityGateRef], ctx: ExecutionContext) -> tuple[bool, list[str]]:
+        return self._run(gates, step=None, ctx=ctx)
+
+    def _run(self, gates: list[QualityGateRef], *, step: PlanStep | None, ctx: ExecutionContext) -> tuple[bool, list[str]]:
+        failures: list[str] = []
+        warnings: list[str] = []
+        for gate in gates:
+            ok, details = self._check(gate.gate_id, step=step, ctx=ctx)
+            if ok:
+                continue
+            if gate.blocking:
+                failures.extend(details)
+            else:
+                warnings.extend(details)
+        return len(failures) == 0, failures + warnings
+
+    def _check(self, gate_id: str, *, step: PlanStep | None, ctx: ExecutionContext) -> tuple[bool, list[str]]:
+        checks = {
+            "required_outputs": lambda: self._required_outputs(step, ctx),
+            "non_empty_answer_or_changeset": lambda: self._non_empty_output(ctx),
+            "changeset_required_for_write": lambda: self._changeset_required(ctx),
+            "changeset_schema": lambda: self._changeset_schema(ctx),
+            "evidence_required": lambda: self._evidence_required(ctx),
+            "review_report_schema": lambda: self._review_schema(ctx),
+            "cross_file_consistency": lambda: self._cross_file_consistency(ctx),
+            "target_path_must_exist_or_be_allowed": lambda: self._target_path_gate(ctx),
+            "minimal_patch_policy": lambda: self._minimal_patch_policy(ctx),
+            "gherkin_syntax_lint": lambda: self._gherkin_lint(ctx),
+            "coverage_of_change_intents": lambda: self._coverage_gate(ctx),
+            "explain_format_hint": lambda: self._explain_hint(ctx),
+        }
+        fn = checks.get(gate_id)
+        if fn is None:
+            return True, []
+        return fn()
+
+    def _required_outputs(self, step: PlanStep | None, ctx: ExecutionContext) -> tuple[bool, list[str]]:
+        if step is None:
+            return True, []
+        missing = [f"missing_required_artifact:{spec.key}" for spec in step.outputs if spec.required and not ctx.artifacts.has(spec.key)]
+        return len(missing) == 0, missing
+
+    def _non_empty_output(self, ctx: ExecutionContext) -> tuple[bool, list[str]]:
+        answer = str(ctx.artifacts.get_content("final_answer", "") or "").strip()
+        changeset = ctx.artifacts.get_content("final_changeset", []) or []
+        ok = bool(answer) or (isinstance(changeset, list) and len(changeset) > 0)
+        return ok, [] if ok else ["empty_final_output"]
+
+    def _changeset_required(self, ctx: ExecutionContext) -> tuple[bool, list[str]]:
+        if not ctx.task.constraints.allow_writes:
+            return True, []
+        changeset = ctx.artifacts.get_content("final_changeset", []) or []
+        ok = isinstance(changeset, list) and len(changeset) > 0
+        return ok, [] if ok else ["changeset_required_for_write"]
+
+    def _changeset_schema(self, ctx: ExecutionContext) -> tuple[bool, list[str]]:
+        changeset = ctx.artifacts.get_content("final_changeset", []) or []
+        if not isinstance(changeset, list):
+            return False, ["changeset_not_list"]
+        for idx, item in enumerate(changeset):
+            if not isinstance(item, dict):
+                return False, [f"changeset_item_not_object:{idx}"]
+            if not item.get("op") or not item.get("path"):
+                return False, [f"changeset_item_missing_fields:{idx}"]
+        return True, []
+
+    def _evidence_required(self, ctx: ExecutionContext) -> tuple[bool, list[str]]:
+        if not ctx.task.source_policy.require_evidence:
+            return True, []
+        evidences = ctx.evidences.all_items()
+        return len(evidences) > 0, ([] if evidences else ["no_evidence_collected"])
+
+    def _review_schema(self, ctx: ExecutionContext) -> tuple[bool, list[str]]:
+        report = str(ctx.artifacts.get_content("review_report", "") or "")
+        ok = "## Findings" in report and "## Recommendations" in report
+        return ok, [] if ok else ["review_report_missing_sections"]
+
+    def _cross_file_consistency(self, ctx: ExecutionContext) -> tuple[bool, list[str]]:
+        report = ctx.artifacts.get_content("consistency_report", {}) or {}
+        ok = bool(report.get("required_core_paths_present"))
+        return ok, [] if ok else ["cross_file_consistency_failed"]
+
+    def _target_path_gate(self, ctx: ExecutionContext) -> tuple[bool, list[str]]:
+        target = ctx.artifacts.get_content("resolved_target", {}) or {}
+        ok = bool(str(target.get("path", "")).strip())
+        return ok, [] if ok else ["target_path_not_resolved"]
+
+    def _minimal_patch_policy(self, ctx: ExecutionContext) -> tuple[bool, list[str]]:
+        report = ctx.artifacts.get_content("patch_validation_report", {}) or {}
+        ok = bool(report.get("safe"))
+        return ok, [] if ok else ["patch_validation_failed"]
+
+    def _gherkin_lint(self, ctx: ExecutionContext) -> tuple[bool, list[str]]:
+        report = ctx.artifacts.get_content("gherkin_lint_report", {}) or {}
+        ok = bool(report.get("valid"))
+        return ok, [] if ok else ["gherkin_lint_failed"]
+
+    def _coverage_gate(self, ctx: ExecutionContext) -> tuple[bool, list[str]]:
+        report = ctx.artifacts.get_content("coverage_report", {}) or {}
+        ok = bool(report.get("covered"))
+        return ok, [] if ok else ["coverage_check_failed"]
+
+    def _explain_hint(self, ctx: ExecutionContext) -> tuple[bool, list[str]]:
+        answer = str(ctx.artifacts.get_content("final_answer", "") or "")
+        ok = "```mermaid" in answer or "sequenceDiagram" in answer
+        return ok, [] if ok else ["hint:explain_answer_missing_mermaid_block"]

app/modules/agent/engine/orchestrator/quality_metrics.py

@@ -0,0 +1,116 @@
+from __future__ import annotations
+
+import re
+
+from app.modules.agent.engine.orchestrator.execution_context import ExecutionContext
+from app.modules.agent.engine.orchestrator.models import StepResult
+
+
+class QualityMetricsCalculator:
+    def build(self, ctx: ExecutionContext, step_results: list[StepResult]) -> dict:
+        answer = str(ctx.artifacts.get_content("final_answer", "") or "")
+        changeset = ctx.artifacts.get_content("final_changeset", []) or []
+        evidences = ctx.evidences.all_items()
+
+        faithfulness = self._faithfulness(answer=answer, changeset=changeset, evidence_count=len(evidences))
+        coverage = self._coverage(ctx=ctx, answer=answer, changeset=changeset)
+        status = self._status(faithfulness["score"], coverage["score"])
+
+        return {
+            "faithfulness": faithfulness,
+            "coverage": coverage,
+            "status": status,
+            "steps": {
+                "total": len(ctx.plan.steps),
+                "completed": len([item for item in step_results if item.status.value == "success"]),
+            },
+        }
+
+    def _faithfulness(self, *, answer: str, changeset, evidence_count: int) -> dict:
+        claims_total = self._estimate_claims(answer, changeset)
+        if claims_total <= 0:
+            claims_total = 1
+
+        support_capacity = min(claims_total, evidence_count * 3)
+        claims_supported = support_capacity if evidence_count > 0 else 0
+        score = claims_supported / claims_total
+        unsupported = max(0, claims_total - claims_supported)
+
+        return {
+            "score": round(score, 4),
+            "claims_total": claims_total,
+            "claims_supported": claims_supported,
+            "claims_unsupported": unsupported,
+            "evidence_items": evidence_count,
+        }
+
+    def _coverage(self, *, ctx: ExecutionContext, answer: str, changeset) -> dict:
+        required = [section.name for section in ctx.task.output_contract.sections if section.required]
+        if not required:
+            required = ["final_output"]
+
+        covered: list[str] = []
+        for item in required:
+            if self._is_item_covered(item=item, ctx=ctx, answer=answer, changeset=changeset):
+                covered.append(item)
+
+        missing = [item for item in required if item not in covered]
+        score = len(covered) / len(required)
+
+        return {
+            "score": round(score, 4),
+            "required_items": required,
+            "covered_items": covered,
+            "missing_items": missing,
+            "required_count": len(required),
+            "covered_count": len(covered),
+        }
+
+    def _status(self, faithfulness: float, coverage: float) -> str:
+        if faithfulness >= 0.75 and coverage >= 0.85:
+            return "ok"
+        if faithfulness >= 0.55 and coverage >= 0.6:
+            return "needs_review"
+        return "fail"
+
+    def _estimate_claims(self, answer: str, changeset) -> int:
+        lines = [line.strip() for line in answer.splitlines() if line.strip()]
+        bullet_claims = len([line for line in lines if line.startswith("-") or line.startswith("*")])
+        sentence_claims = len([part for part in re.split(r"[.!?]\s+", answer) if part.strip()])
+
+        changeset_claims = 0
+        if isinstance(changeset, list):
+            for item in changeset:
+                if isinstance(item, dict):
+                    reason = str(item.get("reason", "")).strip()
+                    if reason:
+                        changeset_claims += 1
+                else:
+                    reason = str(getattr(item, "reason", "")).strip()
+                    if reason:
+                        changeset_claims += 1
+
+        return max(bullet_claims, min(sentence_claims, 12), changeset_claims)
+
+    def _is_item_covered(self, *, item: str, ctx: ExecutionContext, answer: str, changeset) -> bool:
+        name = (item or "").strip().lower()
+        if name == "final_output":
+            return bool(answer.strip()) or (isinstance(changeset, list) and len(changeset) > 0)
+        if name in {"changeset", "final_changeset"}:
+            return isinstance(changeset, list) and len(changeset) > 0
+        if name in {"sequence_diagram", "mermaid"}:
+            sequence = str(ctx.artifacts.get_content("sequence_diagram", "") or "").strip()
+            return "```mermaid" in answer or bool(sequence)
+        if name == "use_cases":
+            if ctx.artifacts.has("use_cases"):
+                return True
+            low = answer.lower()
+            return "use case" in low or "сценар" in low
+        if name in {"summary", "findings", "recommendations", "gherkin_bundle", "review_report"}:
+            if ctx.artifacts.has(name):
+                return True
+            if name == "gherkin_bundle":
+                bundle = ctx.artifacts.get_content("gherkin_bundle", []) or []
+                return isinstance(bundle, list) and len(bundle) > 0
+            return name.replace("_", " ") in answer.lower()
+        return ctx.artifacts.has(name)

app/modules/agent/engine/orchestrator/result_assembler.py

@@ -0,0 +1,55 @@
+from __future__ import annotations
+
+from app.modules.agent.engine.orchestrator.execution_context import ExecutionContext
+from app.modules.agent.engine.orchestrator.models import OrchestratorResult, StepResult
+from app.modules.agent.engine.orchestrator.quality_metrics import QualityMetricsCalculator
+from app.schemas.changeset import ChangeItem
+
+
+class ResultAssembler:
+    def __init__(self, quality: QualityMetricsCalculator | None = None) -> None:
+        self._quality = quality or QualityMetricsCalculator()
+
+    def assemble(self, ctx: ExecutionContext, step_results: list[StepResult]) -> OrchestratorResult:
+        answer = str(ctx.artifacts.get_content("final_answer", "") or "").strip() or None
+        raw_changeset = ctx.artifacts.get_content("final_changeset", []) or []
+        changeset = self._normalize_changeset(raw_changeset)
+        quality = self._quality.build(ctx, step_results)
+
+        meta = {
+            "scenario": ctx.task.scenario.value,
+            "plan": {
+                "plan_id": ctx.plan.plan_id,
+                "template_id": ctx.plan.template_id,
+                "template_version": ctx.plan.template_version,
+                "status": ctx.plan.status.value,
+            },
+            "route": {
+                "domain_id": ctx.task.routing.domain_id,
+                "process_id": ctx.task.routing.process_id,
+                "confidence": ctx.task.routing.confidence,
+                "reason": ctx.task.routing.reason,
+                "fallback_used": ctx.task.routing.fallback_used,
+            },
+            "orchestrator": {
+                "steps_total": len(ctx.plan.steps),
+                "steps_success": len([step for step in step_results if step.status.value == "success"]),
+            },
+            "quality": quality,
+        }
+        return OrchestratorResult(answer=answer, changeset=changeset, meta=meta, steps=step_results)
+
+    def _normalize_changeset(self, value) -> list[ChangeItem]:
+        if not isinstance(value, list):
+            return []
+        items: list[ChangeItem] = []
+        for raw in value:
+            if isinstance(raw, ChangeItem):
+                items.append(raw)
+                continue
+            if isinstance(raw, dict):
+                try:
+                    items.append(ChangeItem.model_validate(raw))
+                except Exception:
+                    continue
+        return items

app/modules/agent/engine/orchestrator/service.py

@@ -0,0 +1,102 @@
+from __future__ import annotations
+
+import inspect
+import logging
+
+from app.core.exceptions import AppError
+from app.modules.agent.engine.orchestrator.execution_context import ExecutionContext, GraphInvoker, GraphResolver, ProgressCallback
+from app.modules.agent.engine.orchestrator.execution_engine import ExecutionEngine
+from app.modules.agent.engine.orchestrator.models import OrchestratorResult, PlanStatus, TaskSpec
+from app.modules.agent.engine.orchestrator.plan_compiler import PlanCompiler
+from app.modules.agent.engine.orchestrator.plan_validator import PlanValidator
+from app.modules.agent.engine.orchestrator.quality_gates import QualityGateRunner
+from app.modules.agent.engine.orchestrator.result_assembler import ResultAssembler
+from app.modules.agent.engine.orchestrator.step_registry import StepRegistry
+from app.modules.agent.engine.orchestrator.template_registry import ScenarioTemplateRegistry
+from app.schemas.common import ModuleName
+
+LOGGER = logging.getLogger(__name__)
+
+
+class OrchestratorService:
+    def __init__(
+        self,
+        templates: ScenarioTemplateRegistry | None = None,
+        compiler: PlanCompiler | None = None,
+        validator: PlanValidator | None = None,
+        step_registry: StepRegistry | None = None,
+        gates: QualityGateRunner | None = None,
+        engine: ExecutionEngine | None = None,
+        assembler: ResultAssembler | None = None,
+    ) -> None:
+        self._templates = templates or ScenarioTemplateRegistry()
+        self._compiler = compiler or PlanCompiler()
+        self._validator = validator or PlanValidator()
+        self._registry = step_registry or StepRegistry()
+        self._gates = gates or QualityGateRunner()
+        self._engine = engine or ExecutionEngine(self._registry, self._gates)
+        self._assembler = assembler or ResultAssembler()
+
+    async def run(
+        self,
+        *,
+        task: TaskSpec,
+        graph_resolver: GraphResolver,
+        graph_invoker: GraphInvoker,
+        progress_cb: ProgressCallback | None = None,
+    ) -> OrchestratorResult:
+        await self._emit_progress(progress_cb, "orchestrator.plan", "Building execution plan.")
+        template = self._templates.build(task)
+        plan = self._compiler.compile(template, task)
+
+        errors = self._validator.validate(plan, task)
+        if errors:
+            raise AppError(
+                code="invalid_execution_plan",
+                desc=f"Execution plan validation failed: {'; '.join(errors)}",
+                module=ModuleName.AGENT,
+            )
+
+        plan.status = PlanStatus.VALIDATED
+        ctx = ExecutionContext(
+            task=task,
+            plan=plan,
+            graph_resolver=graph_resolver,
+            graph_invoker=graph_invoker,
+            progress_cb=progress_cb,
+        )
+
+        await self._emit_progress(progress_cb, "orchestrator.run", "Executing plan steps.")
+        step_results = await self._engine.run(ctx)
+        if plan.status == PlanStatus.FAILED:
+            errors = [f"{step.step_id}:{step.error_message or ','.join(step.warnings)}" for step in step_results if step.status.value != "success"]
+            raise AppError(
+                code="execution_plan_failed",
+                desc=f"Execution plan failed: {'; '.join(errors)}",
+                module=ModuleName.AGENT,
+            )
+        result = self._assembler.assemble(ctx, step_results)
+        await self._emit_progress(progress_cb, "orchestrator.done", "Execution plan completed.")
+        LOGGER.warning(
+            "orchestrator decision: task_id=%s scenario=%s plan_status=%s steps=%s changeset_items=%s answer_len=%s",
+            task.task_id,
+            task.scenario.value,
+            result.meta.get("plan", {}).get("status", ""),
+            [
+                {
+                    "step_id": step.step_id,
+                    "status": step.status.value,
+                }
+                for step in result.steps
+            ],
+            len(result.changeset),
+            len(result.answer or ""),
+        )
+        return result
+
+    async def _emit_progress(self, progress_cb: ProgressCallback | None, stage: str, message: str) -> None:
+        if progress_cb is None:
+            return
+        result = progress_cb(stage, message, "task_progress", {"layer": "orchestrator"})
+        if inspect.isawaitable(result):
+            await result

app/modules/agent/engine/orchestrator/step_registry.py

@@ -0,0 +1,164 @@
+from __future__ import annotations
+
+import asyncio
+from collections.abc import Callable
+from typing import TYPE_CHECKING
+
+from app.modules.agent.engine.graphs.progress_registry import progress_registry
+from app.modules.agent.engine.orchestrator.actions import (
+    CodeExplainActions,
+    DocsActions,
+    EditActions,
+    ExplainActions,
+    GherkinActions,
+    ProjectQaActions,
+    ReviewActions,
+)
+from app.modules.agent.engine.orchestrator.execution_context import ExecutionContext
+from app.modules.agent.engine.orchestrator.models import ArtifactType, PlanStep
+
+if TYPE_CHECKING:
+    from app.modules.rag.explain.retriever_v2 import CodeExplainRetrieverV2
+
+StepFn = Callable[[ExecutionContext], list[str]]
+
+
+class StepRegistry:
+    def __init__(self, code_explain_retriever: CodeExplainRetrieverV2 | None = None) -> None:
+        code_explain = CodeExplainActions(code_explain_retriever)
+        explain = ExplainActions()
+        review = ReviewActions()
+        docs = DocsActions()
+        edits = EditActions()
+        gherkin = GherkinActions()
+        project_qa = ProjectQaActions()
+
+        self._functions: dict[str, StepFn] = {
+            "collect_state": self._collect_state,
+            "finalize_graph_output": self._finalize_graph_output,
+            "execute_project_qa_graph": self._collect_state,
+            "build_code_explain_pack": code_explain.build_code_explain_pack,
+            "collect_sources": explain.collect_sources,
+            "extract_logic": explain.extract_logic,
+            "summarize": explain.summarize,
+            "classify_project_question": project_qa.classify_project_question,
+            "collect_project_sources": project_qa.collect_project_sources,
+            "analyze_project_sources": project_qa.analyze_project_sources,
+            "build_project_answer_brief": project_qa.build_project_answer_brief,
+            "compose_project_answer": project_qa.compose_project_answer,
+            "fetch_source_doc": review.fetch_source_doc,
+            "normalize_document": review.normalize_document,
+            "structural_check": review.structural_check,
+            "semantic_consistency_check": review.semantic_consistency_check,
+            "architecture_fit_check": review.architecture_fit_check,
+            "optimization_check": review.optimization_check,
+            "compose_review_report": review.compose_review_report,
+            "extract_change_intents": docs.extract_change_intents,
+            "map_to_doc_tree": docs.map_to_doc_tree,
+            "load_current_docs_context": docs.load_current_docs_context,
+            "generate_doc_updates": docs.generate_doc_updates,
+            "cross_file_validation": docs.cross_file_validation,
+            "build_changeset": docs.build_changeset,
+            "compose_summary": docs.compose_summary,
+            "resolve_target": edits.resolve_target,
+            "load_target_context": edits.load_target_context,
+            "plan_minimal_patch": edits.plan_minimal_patch,
+            "generate_patch": edits.generate_patch,
+            "validate_patch_safety": edits.validate_patch_safety,
+            "finalize_changeset": edits.finalize_changeset,
+            "compose_edit_summary": edits.compose_edit_summary,
+            "extract_increment_scope": gherkin.extract_increment_scope,
+            "partition_features": gherkin.partition_features,
+            "generate_gherkin_bundle": gherkin.generate_gherkin_bundle,
+            "lint_gherkin": gherkin.lint_gherkin,
+            "validate_coverage": gherkin.validate_coverage,
+            "compose_test_model_summary": gherkin.compose_test_model_summary,
+        }
+
+    async def execute(self, step: PlanStep, ctx: ExecutionContext) -> list[str]:
+        if step.executor == "graph":
+            return await self._execute_graph_step(step, ctx)
+        fn = self._functions.get(step.action_id)
+        if fn is None:
+            raise RuntimeError(f"Unknown function action_id: {step.action_id}")
+        return fn(ctx)
+
+    def _collect_state(self, ctx: ExecutionContext) -> list[str]:
+        state = {
+            "task_id": ctx.task.task_id,
+            "project_id": ctx.task.rag_session_id,
+            "scenario": ctx.task.scenario.value,
+            "message": ctx.task.user_message,
+            "progress_key": ctx.task.task_id,
+            "rag_context": str(ctx.task.metadata.get("rag_context", "")),
+            "confluence_context": str(ctx.task.metadata.get("confluence_context", "")),
+            "files_map": dict(ctx.task.metadata.get("files_map", {}) or {}),
+        }
+        item = ctx.artifacts.put(key="agent_state", artifact_type=ArtifactType.STRUCTURED_JSON, content=state)
+        return [item.artifact_id]
+
+    async def _execute_graph_step(self, step: PlanStep, ctx: ExecutionContext) -> list[str]:
+        graph_key = step.graph_id or "route"
+        if graph_key == "route":
+            domain_id = ctx.task.routing.domain_id
+            process_id = ctx.task.routing.process_id
+        elif "/" in graph_key:
+            domain_id, process_id = graph_key.split("/", 1)
+        else:
+            raise RuntimeError(f"Unsupported graph_id: {graph_key}")
+
+        graph = ctx.graph_resolver(domain_id, process_id)
+        state = self._build_graph_state(ctx)
+
+        if ctx.progress_cb is not None:
+            progress_registry.register(ctx.task.task_id, ctx.progress_cb)
+        try:
+            result = await asyncio.to_thread(ctx.graph_invoker, graph, state, ctx.task.dialog_session_id)
+        finally:
+            if ctx.progress_cb is not None:
+                progress_registry.unregister(ctx.task.task_id)
+
+        return self._store_graph_outputs(step, ctx, result)
+
+    def _build_graph_state(self, ctx: ExecutionContext) -> dict:
+        state = dict(ctx.artifacts.get_content("agent_state", {}) or {})
+        for item in ctx.artifacts.all_items():
+            state[item.key] = ctx.artifacts.get_content(item.key)
+        return state
+
+    def _store_graph_outputs(self, step: PlanStep, ctx: ExecutionContext, result: dict) -> list[str]:
+        if not isinstance(result, dict):
+            raise RuntimeError("graph_result must be an object")
+        if len(step.outputs) == 1 and step.outputs[0].key == "graph_result":
+            item = ctx.artifacts.put(key="graph_result", artifact_type=ArtifactType.STRUCTURED_JSON, content=result)
+            return [item.artifact_id]
+
+        artifact_ids: list[str] = []
+        for output in step.outputs:
+            value = result.get(output.key)
+            if value is None and output.required:
+                raise RuntimeError(f"graph_output_missing:{step.step_id}:{output.key}")
+            item = ctx.artifacts.put(key=output.key, artifact_type=output.type, content=value)
+            artifact_ids.append(item.artifact_id)
+        return artifact_ids
+
+    def _finalize_graph_output(self, ctx: ExecutionContext) -> list[str]:
+        raw = ctx.artifacts.get_content("graph_result", {}) or {}
+        if not isinstance(raw, dict):
+            raise RuntimeError("graph_result must be an object")
+
+        answer = raw.get("answer")
+        changeset = raw.get("changeset") or []
+        output = [
+            ctx.artifacts.put(
+                key="final_answer",
+                artifact_type=ArtifactType.TEXT,
+                content=(str(answer) if answer is not None else ""),
+            ).artifact_id,
+            ctx.artifacts.put(
+                key="final_changeset",
+                artifact_type=ArtifactType.CHANGESET,
+                content=changeset,
+            ).artifact_id,
+        ]
+        return output

app/modules/agent/engine/orchestrator/task_spec_builder.py

@@ -0,0 +1,145 @@
+from __future__ import annotations
+
+from app.modules.agent.engine.orchestrator.models import (
+    AttachmentRef,
+    FileRef,
+    OutputContract,
+    OutputSection,
+    RoutingMeta,
+    Scenario,
+    TaskConstraints,
+    TaskSpec,
+)
+
+
+class TaskSpecBuilder:
+    def build(
+        self,
+        *,
+        task_id: str,
+        dialog_session_id: str,
+        rag_session_id: str,
+        mode: str,
+        message: str,
+        route: RoutingMeta,
+        attachments: list[dict],
+        files: list[dict],
+        rag_items: list[dict],
+        rag_context: str,
+        confluence_context: str,
+        files_map: dict[str, dict],
+    ) -> TaskSpec:
+        scenario = self._detect_scenario(mode=mode, message=message, route=route)
+        output_contract = self._output_contract(scenario)
+        constraints = self._constraints_for(scenario)
+        metadata = {
+            "rag_items": rag_items,
+            "rag_context": rag_context,
+            "confluence_context": confluence_context,
+            "files_map": files_map,
+        }
+        return TaskSpec(
+            task_id=task_id,
+            dialog_session_id=dialog_session_id,
+            rag_session_id=rag_session_id,
+            mode=mode,
+            user_message=message,
+            scenario=scenario,
+            routing=route,
+            attachments=self._map_attachments(attachments),
+            files=self._map_files(files),
+            constraints=constraints,
+            output_contract=output_contract,
+            metadata=metadata,
+        )
+
+    def _detect_scenario(self, *, mode: str, message: str, route: RoutingMeta) -> Scenario:
+        mode_key = (mode or "").strip().lower()
+        text = (message or "").strip().lower()
+
+        if mode_key == "analytics_review":
+            return Scenario.ANALYTICS_REVIEW
+        if "gherkin" in text or "cucumber" in text:
+            return Scenario.GHERKIN_MODEL
+        if any(token in text for token in ("review analytics", "ревью аналитики", "проведи ревью")):
+            return Scenario.ANALYTICS_REVIEW
+        if any(token in text for token in ("сформируй документацию", "документацию из аналитики", "generate docs")):
+            return Scenario.DOCS_FROM_ANALYTICS
+        if any(token in text for token in ("точечн", "измени файл", "targeted edit", "patch file")):
+            return Scenario.TARGETED_EDIT
+        if route.domain_id == "project" and route.process_id == "edits":
+            return Scenario.TARGETED_EDIT
+        if route.domain_id == "docs" and route.process_id == "generation":
+            return Scenario.DOCS_FROM_ANALYTICS
+        if route.domain_id == "project" and route.process_id == "qa" and self._looks_like_explain_request(text):
+            return Scenario.EXPLAIN_PART
+        if route.domain_id == "project" and route.process_id == "qa" and "review" in text:
+            return Scenario.ANALYTICS_REVIEW
+        return Scenario.GENERAL_QA
+
+    def _looks_like_explain_request(self, text: str) -> bool:
+        markers = (
+            "explain",
+            "how it works",
+            "sequence",
+            "diagram",
+            "obiasni",
+            "kak rabotaet",
+            "kak ustroeno",
+            "объясни",
+            "как работает",
+            "как устроен",
+            "диаграм",
+        )
+        return any(marker in text for marker in markers)
+
+    def _map_attachments(self, attachments: list[dict]) -> list[AttachmentRef]:
+        mapped: list[AttachmentRef] = []
+        for item in attachments:
+            value = str(item.get("url") or item.get("value") or "").strip()
+            if not value:
+                continue
+            raw_type = str(item.get("type") or "http_url").strip().lower()
+            attachment_type = raw_type if raw_type in {"confluence_url", "http_url", "file_ref"} else "http_url"
+            mapped.append(AttachmentRef(type=attachment_type, value=value))
+        return mapped
+
+    def _map_files(self, files: list[dict]) -> list[FileRef]:
+        mapped: list[FileRef] = []
+        for item in files:
+            path = str(item.get("path") or "").replace("\\", "/").strip()
+            if not path:
+                continue
+            mapped.append(
+                FileRef(
+                    path=path,
+                    content=str(item.get("content") or ""),
+                    content_hash=str(item.get("content_hash") or ""),
+                )
+            )
+        return mapped
+
+    def _constraints_for(self, scenario: Scenario) -> TaskConstraints:
+        if scenario in {Scenario.DOCS_FROM_ANALYTICS, Scenario.TARGETED_EDIT, Scenario.GHERKIN_MODEL}:
+            return TaskConstraints(allow_writes=True, max_steps=16, max_retries_per_step=2, step_timeout_sec=120)
+        return TaskConstraints(allow_writes=False, max_steps=12, max_retries_per_step=2, step_timeout_sec=90)
+
+    def _output_contract(self, scenario: Scenario) -> OutputContract:
+        if scenario == Scenario.EXPLAIN_PART:
+            return OutputContract(result_type="answer", sections=[OutputSection(name="summary", format="markdown")])
+        if scenario == Scenario.ANALYTICS_REVIEW:
+            return OutputContract(
+                result_type="review_report",
+                sections=[
+                    OutputSection(name="findings", format="markdown"),
+                    OutputSection(name="recommendations", format="markdown"),
+                ],
+            )
+        if scenario in {Scenario.DOCS_FROM_ANALYTICS, Scenario.TARGETED_EDIT}:
+            return OutputContract(result_type="changeset", sections=[OutputSection(name="changeset", format="changeset")])
+        if scenario == Scenario.GHERKIN_MODEL:
+            return OutputContract(
+                result_type="gherkin_bundle",
+                sections=[OutputSection(name="gherkin_bundle", format="gherkin")],
+            )
+        return OutputContract(result_type="answer", sections=[OutputSection(name="summary", format="markdown")])

app/modules/agent/engine/orchestrator/template_registry.py

@@ -0,0 +1,220 @@
+from __future__ import annotations
+
+from app.modules.agent.engine.orchestrator.models import ArtifactSpec, ArtifactType, ExecutionPlan, PlanStep, QualityGateRef, Scenario, TaskSpec
+
+
+class ScenarioTemplateRegistry:
+    def build(self, task: TaskSpec) -> ExecutionPlan:
+        builders = {
+            Scenario.EXPLAIN_PART: self._explain,
+            Scenario.ANALYTICS_REVIEW: self._review,
+            Scenario.DOCS_FROM_ANALYTICS: self._docs,
+            Scenario.TARGETED_EDIT: self._edit,
+            Scenario.GHERKIN_MODEL: self._gherkin,
+            Scenario.GENERAL_QA: self._general,
+        }
+        return builders.get(task.scenario, self._general)(task)
+
+    def _general(self, task: TaskSpec) -> ExecutionPlan:
+        if task.routing.domain_id == "project" and task.routing.process_id == "qa":
+            return self._project_qa(task)
+        steps = [
+            self._step("collect_state", "Collect state", "collect_state", outputs=[self._out("agent_state", ArtifactType.STRUCTURED_JSON)]),
+            self._step(
+                "execute_route_graph",
+                "Execute selected graph",
+                "execute_route_graph",
+                executor="graph",
+                graph_id="route",
+                depends_on=["collect_state"],
+                outputs=[self._out("graph_result", ArtifactType.STRUCTURED_JSON)],
+                gates=[self._gate("required_outputs")],
+            ),
+            self._step(
+                "finalize_graph_output",
+                "Finalize graph output",
+                "finalize_graph_output",
+                depends_on=["execute_route_graph"],
+                outputs=[self._out("final_answer", ArtifactType.TEXT, required=False)],
+                gates=[self._gate("non_empty_answer_or_changeset")],
+            ),
+        ]
+        return self._plan(task, "general_qa_v1", steps, [self._gate("non_empty_answer_or_changeset")])
+
+    def _project_qa(self, task: TaskSpec) -> ExecutionPlan:
+        steps = [
+            self._step("collect_state", "Collect state", "collect_state", outputs=[self._out("agent_state", ArtifactType.STRUCTURED_JSON)]),
+            self._step(
+                "conversation_understanding",
+                "Conversation understanding",
+                "execute_project_qa_graph",
+                executor="graph",
+                graph_id="project_qa/conversation_understanding",
+                depends_on=["collect_state"],
+                outputs=[self._out("resolved_request", ArtifactType.STRUCTURED_JSON)],
+            ),
+            self._step(
+                "question_classification",
+                "Question classification",
+                "execute_project_qa_graph",
+                executor="graph",
+                graph_id="project_qa/question_classification",
+                depends_on=["conversation_understanding"],
+                outputs=[self._out("question_profile", ArtifactType.STRUCTURED_JSON)],
+            ),
+            self._step(
+                "context_retrieval",
+                "Context retrieval",
+                "execute_project_qa_graph",
+                executor="graph",
+                graph_id="project_qa/context_retrieval",
+                depends_on=["question_classification"],
+                outputs=[self._out("source_bundle", ArtifactType.STRUCTURED_JSON)],
+            ),
+        ]
+        analysis_depends_on = ["context_retrieval"]
+        if task.scenario == Scenario.EXPLAIN_PART:
+            steps.append(
+                self._step(
+                    "code_explain_pack_step",
+                    "Build code explain pack",
+                    "build_code_explain_pack",
+                    depends_on=["context_retrieval"],
+                    outputs=[self._out("explain_pack", ArtifactType.STRUCTURED_JSON)],
+                )
+            )
+            analysis_depends_on = ["code_explain_pack_step"]
+        steps.extend(
+            [
+                self._step(
+                    "context_analysis",
+                    "Context analysis",
+                    "execute_project_qa_graph",
+                    executor="graph",
+                    graph_id="project_qa/context_analysis",
+                    depends_on=analysis_depends_on,
+                    outputs=[self._out("analysis_brief", ArtifactType.STRUCTURED_JSON)],
+                ),
+                self._step(
+                    "answer_composition",
+                    "Answer composition",
+                    "execute_project_qa_graph",
+                    executor="graph",
+                    graph_id="project_qa/answer_composition",
+                    depends_on=["context_analysis"],
+                    outputs=[self._out("answer_brief", ArtifactType.STRUCTURED_JSON, required=False), self._out("final_answer", ArtifactType.TEXT)],
+                    gates=[self._gate("non_empty_answer_or_changeset")],
+                ),
+            ]
+        )
+        return self._plan(task, "project_qa_reasoning_v1", steps, [self._gate("non_empty_answer_or_changeset")])
+
+    def _explain(self, task: TaskSpec) -> ExecutionPlan:
+        if task.routing.domain_id == "project" and task.routing.process_id == "qa":
+            return self._project_qa(task)
+        steps = [
+            self._step("collect_sources", "Collect sources", "collect_sources", outputs=[self._out("sources", ArtifactType.STRUCTURED_JSON)]),
+            self._step("extract_logic", "Extract logic", "extract_logic", depends_on=["collect_sources"], outputs=[self._out("logic_model", ArtifactType.STRUCTURED_JSON)]),
+            self._step("summarize", "Summarize", "summarize", depends_on=["extract_logic"], outputs=[self._out("final_answer", ArtifactType.TEXT)]),
+        ]
+        return self._plan(task, "explain_part_v1", steps, [self._gate("evidence_required"), self._gate("non_empty_answer_or_changeset")])
+
+    def _review(self, task: TaskSpec) -> ExecutionPlan:
+        steps = [
+            self._step("fetch_source_doc", "Fetch source doc", "fetch_source_doc", outputs=[self._out("source_doc_raw", ArtifactType.TEXT)], side_effect="external"),
+            self._step("normalize_document", "Normalize document", "normalize_document", depends_on=["fetch_source_doc"], outputs=[self._out("source_doc_text", ArtifactType.TEXT)]),
+            self._step("structural_check", "Structural check", "structural_check", depends_on=["normalize_document"], outputs=[self._out("structural_findings", ArtifactType.STRUCTURED_JSON)]),
+            self._step("semantic_consistency_check", "Semantic check", "semantic_consistency_check", depends_on=["normalize_document"], outputs=[self._out("semantic_findings", ArtifactType.STRUCTURED_JSON)]),
+            self._step("architecture_fit_check", "Architecture fit", "architecture_fit_check", depends_on=["normalize_document"], outputs=[self._out("architecture_findings", ArtifactType.STRUCTURED_JSON)]),
+            self._step("optimization_check", "Optimization check", "optimization_check", depends_on=["normalize_document"], outputs=[self._out("optimization_findings", ArtifactType.STRUCTURED_JSON)]),
+            self._step(
+                "compose_review_report",
+                "Compose review report",
+                "compose_review_report",
+                depends_on=["structural_check", "semantic_consistency_check", "architecture_fit_check", "optimization_check"],
+                outputs=[self._out("review_report", ArtifactType.REVIEW_REPORT), self._out("final_answer", ArtifactType.TEXT)],
+                gates=[self._gate("review_report_schema")],
+            ),
+        ]
+        return self._plan(task, "analytics_review_v1", steps, [self._gate("evidence_required"), self._gate("non_empty_answer_or_changeset")])
+
+    def _docs(self, task: TaskSpec) -> ExecutionPlan:
+        steps = [
+            self._step("fetch_source_doc", "Fetch source doc", "fetch_source_doc", outputs=[self._out("source_doc_raw", ArtifactType.TEXT)], side_effect="external"),
+            self._step("normalize_document", "Normalize document", "normalize_document", depends_on=["fetch_source_doc"], outputs=[self._out("source_doc_text", ArtifactType.TEXT)]),
+            self._step("extract_change_intents", "Extract intents", "extract_change_intents", depends_on=["normalize_document"], outputs=[self._out("change_intents", ArtifactType.STRUCTURED_JSON)]),
+            self._step("map_to_doc_tree", "Map to doc tree", "map_to_doc_tree", depends_on=["extract_change_intents"], outputs=[self._out("doc_targets", ArtifactType.STRUCTURED_JSON)]),
+            self._step("load_current_docs_context", "Load current docs", "load_current_docs_context", depends_on=["map_to_doc_tree"], outputs=[self._out("current_docs_context", ArtifactType.STRUCTURED_JSON)]),
+            self._step("generate_doc_updates", "Generate doc updates", "generate_doc_updates", depends_on=["load_current_docs_context"], outputs=[self._out("generated_doc_bundle", ArtifactType.DOC_BUNDLE)], side_effect="write"),
+            self._step("cross_file_validation", "Cross-file validation", "cross_file_validation", depends_on=["generate_doc_updates"], outputs=[self._out("consistency_report", ArtifactType.STRUCTURED_JSON)], gates=[self._gate("cross_file_consistency")]),
+            self._step("build_changeset", "Build changeset", "build_changeset", depends_on=["cross_file_validation"], outputs=[self._out("final_changeset", ArtifactType.CHANGESET)], side_effect="write"),
+            self._step("compose_summary", "Compose summary", "compose_summary", depends_on=["build_changeset"], outputs=[self._out("final_answer", ArtifactType.TEXT)]),
+        ]
+        return self._plan(task, "docs_from_analytics_v1", steps, [self._gate("changeset_required_for_write"), self._gate("changeset_schema")])
+
+    def _edit(self, task: TaskSpec) -> ExecutionPlan:
+        steps = [
+            self._step("resolve_target", "Resolve target", "resolve_target", outputs=[self._out("resolved_target", ArtifactType.STRUCTURED_JSON)], gates=[self._gate("target_path_must_exist_or_be_allowed")]),
+            self._step("load_target_context", "Load target context", "load_target_context", depends_on=["resolve_target"], outputs=[self._out("target_context", ArtifactType.STRUCTURED_JSON)]),
+            self._step("plan_minimal_patch", "Plan minimal patch", "plan_minimal_patch", depends_on=["load_target_context"], outputs=[self._out("patch_plan", ArtifactType.STRUCTURED_JSON)]),
+            self._step("generate_patch", "Generate patch", "generate_patch", depends_on=["plan_minimal_patch"], outputs=[self._out("raw_changeset", ArtifactType.CHANGESET)], side_effect="write"),
+            self._step("validate_patch_safety", "Validate patch", "validate_patch_safety", depends_on=["generate_patch"], outputs=[self._out("patch_validation_report", ArtifactType.STRUCTURED_JSON)], gates=[self._gate("minimal_patch_policy")]),
+            self._step("finalize_changeset", "Finalize changeset", "finalize_changeset", depends_on=["validate_patch_safety"], outputs=[self._out("final_changeset", ArtifactType.CHANGESET)], side_effect="write"),
+            self._step("compose_edit_summary", "Compose summary", "compose_edit_summary", depends_on=["finalize_changeset"], outputs=[self._out("final_answer", ArtifactType.TEXT)]),
+        ]
+        return self._plan(task, "targeted_edit_v1", steps, [self._gate("changeset_required_for_write"), self._gate("changeset_schema")])
+
+    def _gherkin(self, task: TaskSpec) -> ExecutionPlan:
+        steps = [
+            self._step("fetch_source_doc", "Fetch source doc", "fetch_source_doc", outputs=[self._out("source_doc_raw", ArtifactType.TEXT)], side_effect="external"),
+            self._step("normalize_document", "Normalize document", "normalize_document", depends_on=["fetch_source_doc"], outputs=[self._out("source_doc_text", ArtifactType.TEXT)]),
+            self._step("extract_increment_scope", "Extract increment scope", "extract_increment_scope", depends_on=["normalize_document"], outputs=[self._out("increment_scope", ArtifactType.STRUCTURED_JSON)]),
+            self._step("partition_features", "Partition features", "partition_features", depends_on=["extract_increment_scope"], outputs=[self._out("feature_groups", ArtifactType.STRUCTURED_JSON)]),
+            self._step("generate_gherkin_bundle", "Generate gherkin", "generate_gherkin_bundle", depends_on=["partition_features"], outputs=[self._out("gherkin_bundle", ArtifactType.GHERKIN_BUNDLE)], side_effect="write"),
+            self._step("lint_gherkin", "Lint gherkin", "lint_gherkin", depends_on=["generate_gherkin_bundle"], outputs=[self._out("gherkin_lint_report", ArtifactType.STRUCTURED_JSON)], gates=[self._gate("gherkin_syntax_lint")]),
+            self._step("validate_coverage", "Validate coverage", "validate_coverage", depends_on=["generate_gherkin_bundle"], outputs=[self._out("coverage_report", ArtifactType.STRUCTURED_JSON)], gates=[self._gate("coverage_of_change_intents")]),
+            self._step("compose_test_model_summary", "Compose summary", "compose_test_model_summary", depends_on=["lint_gherkin", "validate_coverage"], outputs=[self._out("final_answer", ArtifactType.TEXT), self._out("final_changeset", ArtifactType.CHANGESET)], side_effect="write"),
+        ]
+        return self._plan(task, "gherkin_model_v1", steps, [self._gate("changeset_schema"), self._gate("non_empty_answer_or_changeset")])
+
+    def _plan(self, task: TaskSpec, template_id: str, steps: list[PlanStep], gates: list[QualityGateRef]) -> ExecutionPlan:
+        return ExecutionPlan(
+            plan_id=f"{task.task_id}:{template_id}",
+            task_id=task.task_id,
+            scenario=task.scenario,
+            template_id=template_id,
+            template_version="1.0",
+            steps=steps,
+            global_gates=gates,
+        )
+
+    def _step(
+        self,
+        step_id: str,
+        title: str,
+        action_id: str,
+        *,
+        executor: str = "function",
+        graph_id: str | None = None,
+        depends_on: list[str] | None = None,
+        outputs: list[ArtifactSpec] | None = None,
+        gates: list[QualityGateRef] | None = None,
+        side_effect: str = "read",
+    ) -> PlanStep:
+        return PlanStep(
+            step_id=step_id,
+            title=title,
+            action_id=action_id,
+            executor=executor,
+            graph_id=graph_id,
+            depends_on=depends_on or [],
+            outputs=outputs or [],
+            quality_gates=gates or [],
+            side_effect=side_effect,
+        )
+
+    def _out(self, key: str, artifact_type: ArtifactType, *, required: bool = True) -> ArtifactSpec:
+        return ArtifactSpec(key=key, type=artifact_type, required=required)
+
+    def _gate(self, gate_id: str, *, blocking: bool = True) -> QualityGateRef:
+        return QualityGateRef(gate_id=gate_id, blocking=blocking)

app/modules/agent/engine/router/__init__.py

@@ -1,34 +1,53 @@
 from pathlib import Path
+from typing import TYPE_CHECKING
 
-from app.modules.agent.engine.graphs import (
-    BaseGraphFactory,
-    DocsGraphFactory,
-    ProjectEditsGraphFactory,
-    ProjectQaGraphFactory,
-)
-from app.modules.agent.repository import AgentRepository
 from app.modules.agent.llm import AgentLlmService
-from app.modules.agent.engine.router.context_store import RouterContextStore
+from app.modules.contracts import RagRetriever
-from app.modules.agent.engine.router.intent_classifier import IntentClassifier
+
-from app.modules.agent.engine.router.registry import IntentRegistry
+if TYPE_CHECKING:
-from app.modules.agent.engine.router.router_service import RouterService
+    from app.modules.agent.repository import AgentRepository
+    from app.modules.agent.engine.router.router_service import RouterService
 
 
-def build_router_service(llm: AgentLlmService, agent_repository: AgentRepository) -> RouterService:
+def build_router_service(llm: AgentLlmService, agent_repository: "AgentRepository", rag: RagRetriever) -> "RouterService":
+    from app.modules.agent.engine.graphs import (
+        BaseGraphFactory,
+        DocsGraphFactory,
+        ProjectEditsGraphFactory,
+        ProjectQaAnalysisGraphFactory,
+        ProjectQaAnswerGraphFactory,
+        ProjectQaClassificationGraphFactory,
+        ProjectQaConversationGraphFactory,
+        ProjectQaGraphFactory,
+        ProjectQaRetrievalGraphFactory,
+    )
+    from app.modules.agent.engine.router.context_store import RouterContextStore
+    from app.modules.agent.engine.router.intent_classifier import IntentClassifier
+    from app.modules.agent.engine.router.intent_switch_detector import IntentSwitchDetector
+    from app.modules.agent.engine.router.registry import IntentRegistry
+    from app.modules.agent.engine.router.router_service import RouterService
+
     registry_path = Path(__file__).resolve().parent / "intents_registry.yaml"
     registry = IntentRegistry(registry_path=registry_path)
     registry.register("default", "general", BaseGraphFactory(llm).build)
     registry.register("project", "qa", ProjectQaGraphFactory(llm).build)
     registry.register("project", "edits", ProjectEditsGraphFactory(llm).build)
     registry.register("docs", "generation", DocsGraphFactory(llm).build)
+    registry.register("project_qa", "conversation_understanding", ProjectQaConversationGraphFactory(llm).build)
+    registry.register("project_qa", "question_classification", ProjectQaClassificationGraphFactory(llm).build)
+    registry.register("project_qa", "context_retrieval", ProjectQaRetrievalGraphFactory(rag, llm).build)
+    registry.register("project_qa", "context_analysis", ProjectQaAnalysisGraphFactory(llm).build)
+    registry.register("project_qa", "answer_composition", ProjectQaAnswerGraphFactory(llm).build)
 
     classifier = IntentClassifier(llm)
+    switch_detector = IntentSwitchDetector()
     context_store = RouterContextStore(agent_repository)
     return RouterService(
         registry=registry,
         classifier=classifier,
         context_store=context_store,
+        switch_detector=switch_detector,
     )
 
 
-__all__ = ["build_router_service", "IntentRegistry", "RouterService"]
+__all__ = ["build_router_service"]