papayu/docs/PROTOCOL_V3_PLAN.md
Yuriy 764003fc09 Commit X4: Auto inject Online Research summary into plan context
This commit implements fully automatic injection of online research results into the LLM prompt without user clicks.

## Backend

### Environment Variables
- Added `PAPAYU_ONLINE_AUTO_USE_AS_CONTEXT=1` (default: 0) to enable automatic injection of online research results into subsequent `proposeActions` calls.
- Added `is_online_auto_use_as_context()` helper function in `online_research/mod.rs`.

### Command Changes
- **`propose_actions` command**: Added `online_fallback_reason: Option<String>` parameter to track the error code that triggered online fallback.
- **`llm_planner::plan` function**: Added `online_fallback_reason: Option<&str>` parameter for tracing.
- **Trace Enhancements**: Added `online_fallback_reason` field to trace when `online_fallback_executed` is true.

### Module Exports
- Made `extract_error_code_prefix` public in `online_research/fallback.rs` for frontend use.

## Frontend

### Project Settings
- Added `onlineAutoUseAsContext` state (persisted in `localStorage` as `papa_yu_online_auto_use_as_context`).
- Initialized from localStorage or defaults to `false`.
- Auto-saved to localStorage on change.

### Auto-Chain Flow
- When `plan.ok === false` and `plan.online_fallback_suggested` is present:
  - If `onlineAutoUseAsContext === true` and not already attempted for this goal (cycle protection via `lastGoalWithOnlineFallbackRef`):
    - Automatically calls `researchAnswer(query)`.
    - Truncates result to `8000` chars and `10` sources (frontend-side limits).
    - Immediately calls `proposeActions` again with:
      - `online_context_md`
      - `online_context_sources`
      - `online_fallback_executed: true`
      - `online_fallback_reason: error_code`
      - `online_fallback_attempted: true`
    - Displays the new plan/error without requiring "Use as context" button click.
  - If `onlineAutoUseAsContext === false` or already attempted:
    - Falls back to manual mode (shows online research block with "Use as context (once)" button).

### Cycle Protection
- `lastGoalWithOnlineFallbackRef` tracks the last goal that triggered online fallback.
- If the same goal triggers fallback again, auto-chain is skipped to prevent infinite loops.
- Maximum 1 auto-chain per user query.

### UI Enhancements
- **Online Research Block**:
  - When `onlineAutoUseAsContext === true`: displays "Auto-used ✓" badge.
  - Hides "Use as context (once)" button when auto-use is enabled.
  - Adds "Disable auto-use" button (red) to disable auto-use for the current project.
  - When disabled, shows system message: "Auto-use отключён для текущего проекта."

### API Updates
- **`proposeActions` in `tauri.ts`**: Added `onlineFallbackReason?: string | null` parameter.

## Tests

- **`online_context_auto_test.rs`**: Added unit tests for:
  - `test_is_online_auto_use_disabled_by_default`
  - `test_is_online_auto_use_enabled_when_set`
  - `test_extract_error_code_prefix_timeout`
  - `test_extract_error_code_prefix_schema`
  - `test_extract_error_code_prefix_empty_when_no_prefix`

All tests pass.

## Documentation

### README.md
- Added "Auto-use (X4)" subsection under "Online Research":
  - Describes `PAPAYU_ONLINE_AUTO_USE_AS_CONTEXT=1` env var (default: 0).
  - Explains cycle protection: maximum 1 auto-chain per goal.
  - Documents UI behavior: "Auto-used ✓" badge and "Disable auto-use" button.

## Behavior Summary

**Without auto-use (default):**
1. `proposeActions` → error + `online_fallback_suggested`
2. UI calls `researchAnswer`
3. UI displays online research block with "Use as context (once)" button
4. User clicks button → sets `onlineContextPending` → next `proposeActions` includes context

**With auto-use enabled (`PAPAYU_ONLINE_AUTO_USE_AS_CONTEXT=1`):**
1. `proposeActions` → error + `online_fallback_suggested`
2. UI calls `researchAnswer` automatically
3. UI displays online research block with "Auto-used ✓" badge
4. UI immediately calls `proposeActions` again with online context → displays new plan
5. If still fails → no retry (cycle protection)

## Build Status

-  Backend: `cargo build --lib` (2 warnings about unused code for future features)
-  Frontend: `npm run build`
-  Tests: `cargo test online_context_auto_test --lib` (5 passed)

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-01-31 14:39:40 +03:00

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# План Protocol v3
План развития протокола — без внедрения. v2 решает «перезапись файла» через PATCH_FILE, но патчи всё ещё бывают хрупкими.
---
## Вариант v3-A (рекомендуемый): EDIT_FILE с операциями
Новый action:
```json
{
"kind": "EDIT_FILE",
"path": "src/foo.py",
"base_sha256": "...",
"edits": [
{
"op": "replace",
"anchor": "def parse(",
"before": "return value.strip()",
"after": "if value is None:\n return \"\"\nreturn value.strip()"
}
]
}
```
**Плюсы:**
- Устойчивее к line drift (якорь по содержимому, не по номерам строк)
- Проще валидировать «что именно поменялось»
- Меньше риска ERR_PATCH_APPLY_FAILED
**Минусы:**
- Нужен свой «якорный» редактор
- Якорь должен быть уникальным в файле
**MVP для v3:**
- Оставить PATCH_FILE как fallback
- Добавить EDIT_FILE только для текстовых файлов
- Engine: «найди anchor → проверь before → замени на after»
- base_sha256 остаётся обязательным
---
## Вариант v3-B: AST-level edits (язык-специфично)
Для Python/TS можно делать по AST (insert/delete/replace узлов). Плюсы: максимальная точность. Минусы: значительно больше работы, сложнее поддерживать, нужно знать язык.
---
## Совместимость v1/v2/v3
- v1: UPDATE_FILE, CREATE_FILE, …
- v2: + PATCH_FILE, base_sha256
- v3: + EDIT_FILE (якорные операции), PATCH_FILE как fallback
Выбор активного протокола по env. v3 совместим с v2 (EDIT_FILE — расширение).