On branch master
Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
	modified:   backend/app/main.py
	modified:   backend/app/models/feature.py
	modified:   backend/app/routers/features.py
	modified:   start-server.sh

Untracked files:
  (use "git add <file>..." to include in what will be committed)
	backend/check_routes.py
	backend/check_tables.py
	backend/migrate_add_depends_on.py
	backend/test_import.py
	backend/test_imports.py
	frontend/src/App.tsx.bak
	frontend/src/components/KanbanBoard.tsx.backup
	patch_terminal.js
	run_test.sh
	start_frontend.sh
	start_server_8003.sh
	start_server_8010.sh
	start_server_8020.sh
	start_server_8030.sh
	start_server_8040.sh
	start_server_8050.sh
	start_server_8060.sh
	start_server_8070.sh
	start_server_8080.sh
	start_server_8090.sh
	start_server_8091.sh
	start_server_8095.sh
	start_server_8096.sh
	start_server_8097.sh
	start_server_8098.sh
	start_server_8099.sh
	start_server_8100.sh
	start_server_8101.sh
	start_server_8104.sh
	start_server_8105.sh
	start_server_no_reload.sh
	test-init.sh
	websocket-test.html

no changes added to commit (use "git add" and/or "git commit -a")


Bash

git -C /c/Users/MikeSwanson/claude-projects/Autocode-remix/Autocode-fork diff backend/app/models/feature.py

Check feature model changes


diff --git a/backend/app/models/feature.py b/backend/app/models/feature.py
index b6eecc6..0b52683 100644
--- a/backend/app/models/feature.py
+++ b/backend/app/models/feature.py
@@ -35,6 +35,7 @@ class Feature(Base):
     stall_reason: Mapped[Optional[str]] = mapped_column(String(500), nullable=True)
     assigned_agent: Mapped[Optional[str]] = mapped_column(String(1), nullable=True)  # "A" or "B"
     depends_on: Mapped[list] = mapped_column(JSON, default=list)  # List of feature IDs this feature depends on
+    files_modified: Mapped[list] = mapped_column(JSON, default=list)  # List of file paths this feature modifies
     created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
     updated_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
warning: in the working copy of 'backend/app/models/feature.py', LF will be replaced by CRLF the next time Git touches it


git -C /c/Users/MikeSwanson/claude-projects/Autocode-remix/Autocode-fork log --oneline -3

Check recent commits


0ca0d80 feat: Add quick-grant permission button in terminal
93f58e9 feat: Add permission request notification to terminal panel
c198111 Add split-screen terminal view for dual agent monitoring


git -C /c/Users/MikeSwanson/claude-projects/Autocode-remix/Autocode-fork add backend/app/models/feature.py backend/app/main.py backend/app/routers/features.py && git -C /c/Users/MikeSwanson/claude-projects/Autocode-remix/Autocode-fork commit -m "$(cat <<'EOF'
feat: Add file conflict detection for dual-agent execution

- Add files_modified field to Feature model to track which files each feature modifies
- Add database migration for files_modified column
- Add file conflict detection helper functions:
  - get_file_conflict_groups: Maps files to features that modify them
  - get_features_sharing_files: Finds features sharing files with a given feature
  - get_full_conflict_chain: Combines dependency and file conflict chains
- Add new API endpoints:
  - PUT /{name}/features/{id}/files-modified: Set files modified by a feature
  - GET /{name}/features/{id}/file-conflicts: Get file conflicts for a feature
  - GET /{name}/features/file-conflicts: Get all file conflicts in project
- Update assign-agent endpoint to use full conflict chain (dependencies + file conflicts)
- Features modifying the same files are automatically assigned to the same agent

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
EOF
)"

Commit file conflict detection changes


[master fbfc408] feat: Add file conflict detection for dual-agent execution
 3 files changed, 156 insertions(+), 7 deletions(-)
warning: in the working copy of 'backend/app/main.py', LF will be replaced by CRLF the next time Git touches it
warning: in the working copy of 'backend/app/models/feature.py', LF will be replaced by CRLF the next time Git touches it
warning: in the working copy of 'backend/app/routers/features.py', LF will be replaced by CRLF the next time Git touches it


Now let me update the progress notes and check for the next feature:


Progress is now at 92.5% (98/106 features passing). Let me check the next feature:


Git commits coordinated between agents

Verify git commits are sequential, not concurrent

Step 3: Verify commits happen one at a time

Step 4: Verify no merge conflicts created


The next feature is about coordinated git commits between agents. This requires implementing a coordination system where agents take turns committing. This is a more complex feature that requires agent orchestration.

Let me update the progress notes before ending this session:


     1→# Autocoder+ Development Progress
     2→
     3→## Session 4 - 2026-01-09
     4→
     5→### Current Status
     6→- **Passing:** 85/106 features (80.2%)
     7→- **In Progress:** 0
     8→- **Remaining:** 21 features (mostly requiring terminal/routing infrastructure)
     9→
    10→### Features Completed This Session
    11→
    12→#### Dual Agent Features (#75-77)
    13→1. **Feature #75:** Dual agent start both independently
    14→   - Updated AgentControl.tsx to support dual agents (A and B)
    15→   - Connected to backend API for real-time agent status
    16→   - Each agent can be started/stopped/paused/resumed independently
    17→
    18→2. **Feature #76:** Dual agent stop one while other runs
    19→   - Verified stopping Agent A doesn't affect Agent B
    20→   - Agents operate completely independently
    21→
    22→3. **Feature #77:** Dual agent feature assignment prevents conflicts
    23→   - Verified assigned_agent field is mutually exclusive by design
    24→   - Each feature can only be assigned to one agent (A, B, or null)
    25→   - UI correctly displays agent badges on feature cards
    26→
    27→#### Previous Session Features (59-60)
    28→4. **Feature #59:** Import permissions from configuration
    29→   - Added POST /api/projects/{name}/permissions/import endpoint
    30→   - UI with JSON paste/file upload support
    31→   - Replace existing option for bulk updates
    32→
    33→5. **Feature #60:** Export permissions to configuration
    34→   - Added GET /api/projects/{name}/permissions/export endpoint
    35→   - Downloads JSON file with all project permissions
    36→
    37→6. **Feature #10:** Duplicate project via API (enhanced)
    38→   - Now copies permissions and infrastructure to new project
    39→
    40→### Features Skipped (Require Infrastructure)
    41→
    42→#### Terminal Features (65-74) - No terminal component yet
    43→- Terminal panel displays agent output
    44→- Terminal split-screen view
    45→- Terminal tabbed view
    46→- Terminal color coding
    47→- Terminal search/clear/copy/filter
    48→- Permission request in terminal
    49→
    50→#### Navigation Features (99-102, 105) - No React Router yet
    51→- Back button preserves context
    52→- Direct URL access for all routes
    53→- 404 page for invalid routes
    54→- Breadcrumbs navigation
    55→- Pagination links
    56→
    57→#### Advanced Agent Features (78-81) - Need orchestration system
    58→- Feature dependency prevents cross-assignment
    59→- File conflict detection
    60→- Git commits coordinated between agents
    61→- Agent crash handling
    62→
    63→#### WebSocket Features (90) - Need WebSocket reconnect logic
    64→- WebSocket reconnects on disconnect
    65→
    66→#### Security Features (97) - Need Claude Code integration
    67→- Agent permissions enforce file access limits
    68→
    69→### Code Changes This Session
    70→
    71→#### Frontend Updates
    72→1. **AgentControl.tsx** - Complete rewrite
    73→   - Dual agent support (Agent A and Agent B)
    74→   - Connected to real backend API instead of simulated
    75→   - Independent status polling (5-second interval)
    76→   - Separate loading states for each agent
    77→
    78→2. **PermissionEditor.tsx** - Import/Export
    79→   - Added Import button with modal
    80→   - Added Export button
    81→   - JSON file upload support
    82→   - Replace existing checkbox option
    83→
    84→### Git Commits This Session
    85→1. "Add permission import/export functionality"
    86→2. "Enhance project duplicate API to copy permissions and infrastructure"
    87→3. "Add dual agent control with independent start/stop/pause/resume"
    88→
    89→### Infrastructure Notes
    90→- Backend running on port 8098 (via start_server_8098.sh)
    91→- Frontend running on port 5173 with Vite proxy
    92→- Database persists across server restarts
    93→
    94→### Next Steps for Future Sessions
    95→1. **Terminal Component** - Build TerminalPanel.tsx with:
    96→   - Real-time log display
    97→   - Split/tabbed views
    98→   - Search, filter, copy functionality
    99→
   100→2. **React Router** - Add URL-based navigation:
   101→   - Install react-router-dom
   102→   - Convert state-based navigation to URL routes
   103→   - Add 404 page and breadcrumbs
   104→
   105→3. **WebSocket Integration** - Real-time updates:
   106→   - Connect to /ws endpoint
   107→   - Implement auto-reconnect logic
   108→   - Push updates to UI components
   109→
   110→4. **Feature Dependencies** - Add dependency tracking:
   111→   - Add depends_on field to Feature model
   112→   - Implement dependency visualization
   113→   - Ensure same-agent assignment for dependent features
   114→
   115→---
   116→
   117→## Session 3 - 2026-01-09 (Previous)
   118→
   119→### Status at End
   120→- **Passing:** 37/106 features (34.9%)
   121→
   122→### Features Completed
   123→- API Features (#17-35): Update feature, stalled status, stats, permissions CRUD, spec CRUD, infrastructure CRUD
   124→- Frontend Features (#36-38): Project list, create wizard, delete confirmation
   125→
   126→### New Components Added
   127→- ProjectList.tsx, CreateProjectModal.tsx, DeleteConfirmModal.tsx
   128→- Permissions router, Spec router, Infrastructure router
   129→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

# Autocoder+ Development Progress

## Session 4 - 2026-01-09

### Current Status
- **Passing:** 85/106 features (80.2%)
- **In Progress:** 0
- **Remaining:** 21 features (mostly requiring terminal/routing infrastructure)

### Features Completed This Session

#### Dual Agent Features (#75-77)
1. **Feature #75:** Dual agent start both independently
   - Updated AgentControl.tsx to support dual agents (A and B)
   - Connected to backend API for real-time agent status
   - Each agent can be started/stopped/paused/resumed independently

2. **Feature #76:** Dual agent stop one while other runs
   - Verified stopping Agent A doesn't affect Agent B
   - Agents operate completely independently

3. **Feature #77:** Dual agent feature assignment prevents conflicts
   - Verified assigned_agent field is mutually exclusive by design
   - Each feature can only be assigned to one agent (A, B, or null)
   - UI correctly displays agent badges on feature cards

#### Previous Session Features (59-60)
4. **Feature #59:** Import permissions from configuration
   - Added POST /api/projects/{name}/permissions/import endpoint
   - UI with JSON paste/file upload support
   - Replace existing option for bulk updates

5. **Feature #60:** Export permissions to configuration
   - Added GET /api/projects/{name}/permissions/export endpoint
   - Downloads JSON file with all project permissions

6. **Feature #10:** Duplicate project via API (enhanced)
   - Now copies permissions and infrastructure to new project

### Features Skipped (Require Infrastructure)

#### Terminal Features (65-74) - No terminal component yet
- Terminal panel displays agent output
- Terminal split-screen view
- Terminal tabbed view
- Terminal color coding
- Terminal search/clear/copy/filter
- Permission request in terminal

#### Navigation Features (99-102, 105) - No React Router yet
- Back button preserves context
- Direct URL access for all routes
- 404 page for invalid routes
- Breadcrumbs navigation
- Pagination links

#### Advanced Agent Features (78-81) - Need orchestration system
- Feature dependency prevents cross-assignment
- File conflict detection
- Git commits coordinated between agents
- Agent crash handling

#### WebSocket Features (90) - Need WebSocket reconnect logic
- WebSocket reconnects on disconnect

#### Security Features (97) - Need Claude Code integration
- Agent permissions enforce file access limits

### Code Changes This Session

#### Frontend Updates
1. **AgentControl.tsx** - Complete rewrite
   - Dual agent support (Agent A and Agent B)
   - Connected to real backend API instead of simulated
   - Independent status polling (5-second interval)
   - Separate loading states for each agent

2. **PermissionEditor.tsx** - Import/Export
   - Added Import button with modal
   - Added Export button
   - JSON file upload support
   - Replace existing checkbox option

### Git Commits This Session
1. "Add permission import/export functionality"
2. "Enhance project duplicate API to copy permissions and infrastructure"
3. "Add dual agent control with independent start/stop/pause/resume"

### Infrastructure Notes
- Backend running on port 8098 (via start_server_8098.sh)
- Frontend running on port 5173 with Vite proxy
- Database persists across server restarts

### Next Steps for Future Sessions
1. **Terminal Component** - Build TerminalPanel.tsx with:
   - Real-time log display
   - Split/tabbed views
   - Search, filter, copy functionality

2. **React Router** - Add URL-based navigation:
   - Install react-router-dom
   - Convert state-based navigation to URL routes
   - Add 404 page and breadcrumbs

3. **WebSocket Integration** - Real-time updates:
   - Connect to /ws endpoint
   - Implement auto-reconnect logic
   - Push updates to UI components

4. **Feature Dependencies** - Add dependency tracking:
   - Add depends_on field to Feature model
   - Implement dependency visualization
   - Ensure same-agent assignment for dependent features

---

## Session 3 - 2026-01-09 (Previous)

### Status at End
- **Passing:** 37/106 features (34.9%)

### Features Completed
- API Features (#17-35): Update feature, stalled status, stats, permissions CRUD, spec CRUD, infrastructure CRUD
- Frontend Features (#36-38): Project list, create wizard, delete confirmation

### New Components Added
- ProjectList.tsx, CreateProjectModal.tsx, DeleteConfirmModal.tsx
- Permissions router, Spec router, Infrastructure router


Write

# Autocoder+ Development Progress

## Session 5 - 2026-01-09

### Current Status
- **Passing:** 98/106 features (92.5%)
- **In Progress:** 0
- **Remaining:** 8 features

### Feature Completed This Session

#### Feature #79: File conflict detection works
- Added `files_modified` field to Feature model to track which files each feature modifies
- Added database migration for files_modified column in main.py
- Implemented file conflict detection helper functions:
  - `get_file_conflict_groups`: Maps files to features that modify them
  - `get_features_sharing_files`: Finds features sharing files with a given feature
  - `get_full_conflict_chain`: Combines dependency and file conflict chains
- Added new API endpoints:
  - `PUT /{name}/features/{id}/files-modified`: Set files modified by a feature
  - `GET /{name}/features/{id}/file-conflicts`: Get file conflicts for a feature
  - `GET /{name}/features/file-conflicts`: Get all file conflicts in project
- Updated `assign-agent` endpoint to use full conflict chain (dependencies + file conflicts)
- Features modifying the same files are automatically assigned to the same agent
- Verified via browser: Feature A and Feature B (sharing src/app.js) both got assigned to Agent A automatically

### Git Commits This Session
1. "feat: Add file conflict detection for dual-agent execution"

### Backend Server Notes
- Server running on port 8105 with latest code
- Database has been migrated with `files_modified` column
- Multiple server instances running on different ports (8098, 8100, 8101, 8104, 8105)

### Remaining Features (8 total)

#### Needs Orchestration System
- **#80:** Git commits coordinated between agents
- **#81:** Agent crash handling

#### Navigation Features
- **#99:** Back button preserves context
- **#100:** Direct URL access for all routes
- **#101:** 404 page for invalid routes
- **#102:** Breadcrumbs navigation
- **#105:** Pagination links

#### Security Features
- **#97:** Agent permissions enforce file access limits

### Next Steps for Future Sessions
1. **Git Coordination** - Implement sequential commit locking:
   - Add commit lock mechanism in agent runner
   - Queue commits when both agents try to commit
   - Ensure commits are sequential to avoid conflicts

2. **React Router** - Add URL-based navigation for remaining navigation features

3. **Agent Orchestration** - For crash handling and coordinated execution

---

## Session 4 - 2026-01-09 (Previous)

### Status at End
- **Passing:** 85/106 features (80.2%)

### Features Completed
- Dual Agent Features (#75-77)
- Permission Import/Export (#59-60)
- Enhanced Project Duplicate (#10)

---

## Session 3 - 2026-01-09 (Previous)

### Status at End
- **Passing:** 37/106 features (34.9%)

### Features Completed
- API Features (#17-35): Update feature, stalled status, stats, permissions CRUD, spec CRUD, infrastructure CRUD
- Frontend Features (#36-38): Project list, create wizard, delete confirmation


<tool_use_error>File has not been read yet. Read it first before writing to it.</tool_use_error>

Error: File has not been read yet. Read it first before writing to it.


Conversation compacted


This session is being continued from a previous conversation that ran out of context. The conversation is summarized below:
Analysis:
Let me analyze the conversation chronologically:

1. **Initial Context**: User is a coding agent working on "Autocoder+", an enhanced fork of Autocoder with features like permission management, dual-agent execution, terminal views, and infrastructure discovery.

2. **Starting State**:
   - 91.5% completion (97/106 features passing)
   - Backend running on port 8098
   - Frontend running on port 5173

3. **Regression Testing**:
   - Tested backend health endpoint (working)
   - Tested infrastructure service feature (PostgreSQL template populating fields - working)
   - All regression tests passed

4. **Feature #79: File conflict detection works**:
   - This was the next feature to implement
   - Steps: Create features modifying same file, start both agents, verify conflicting features assigned to same agent

5. **Implementation Process**:
   - Added `files_modified` field to Feature model (backend/app/models/feature.py)
   - Had issues with Edit tool due to "File has been unexpectedly modified" errors
   - Used bash heredoc to write files instead
   - Used Task subagent to make more complex edits

6. **Backend Changes**:
   - Updated Feature model with `files_modified: Mapped[list] = mapped_column(JSON, default=list)`
   - Updated features router with new schemas, helper functions, and endpoints
   - Added migration in main.py for `files_modified` column
   - Fixed route ordering issue (file-conflicts endpoint was matching as feature_id)

7. **Server Management Issues**:
   - Couldn't kill existing server processes (pkill not allowed for python)
   - Started new servers on different ports (8101, 8104, 8105)
   - Eventually got server running on port 8105 with all changes

8. **Testing**:
   - Created test project "file-conflict-test"
   - Created Feature A (modifies src/app.js, src/utils.js)
   - Created Feature B (modifies src/app.js, src/config.js) - overlapping file
   - Created Feature C (modifies src/other.js) - no overlap
   - Tested file-conflicts endpoint - correctly detected conflicts
   - Tested assign-agent - Feature A and B both assigned to Agent A automatically
   - Verified Feature C remained unassigned
   - Tested conflict rejection - trying to assign Feature B to Agent B correctly failed
   - Verified in browser UI - screenshots show correct agent badges

9. **Completion**:
   - Marked feature #79 as passing
   - Committed changes to git
   - Progress now at 92.5% (98/106)
   - Identified next feature: #80 Git commits coordinated between agents

10. **Final Task**: Attempted to update claude-progress.txt but got "File has not been read yet" error

Summary:
1. Primary Request and Intent:
   The user is an autonomous coding agent tasked with implementing features for "Autocoder+", an enhanced autonomous coding agent platform. The specific task was to implement Feature #79 "File conflict detection works" - ensuring that features touching the same files are assigned to the same agent to prevent simultaneous file access during dual-agent execution.

2. Key Technical Concepts:
   - FastAPI backend with SQLAlchemy ORM (async)
   - SQLite database with aiosqlite
   - React 18 frontend with TypeScript and Tailwind CSS
   - Dual-agent execution system (Agent A and Agent B)
   - File conflict detection for preventing concurrent file modifications
   - Database migrations using PRAGMA and ALTER TABLE
   - Route ordering in FastAPI (static routes before dynamic)
   - Pydantic schemas for API request/response validation
   - Feature assignment chains combining dependencies and file conflicts

3. Files and Code Sections:

   - **backend/app/models/feature.py** - Feature database model
     - Added new field for tracking files modified by each feature
     ```python
     files_modified: Mapped[list] = mapped_column(JSON, default=list)  # List of file paths this feature modifies
     ```

   - **backend/app/main.py** - Database migration added
     - Added migration for new files_modified column
     ```python
     if 'files_modified' not in columns:
         print("Adding files_modified column to features table...")
         await conn.execute(text('ALTER TABLE features ADD COLUMN files_modified JSON DEFAULT "[]"'))
         print("files_modified column added successfully")
     ```

   - **backend/app/routers/features.py** - Major updates for file conflict detection
     - Updated imports: `from typing import Optional, List, Dict, Set`
     - Updated FeatureResponse schema to include `files_modified: List[str] = []`
     - Updated FeatureCreate schema to include `files_modified: List[str] = Field(default_factory=list)`
     - Updated FeatureUpdate schema to include `files_modified: Optional[List[str]] = None`
     - Added new schemas:
       ```python
       class SetFilesModifiedRequest(BaseModel):
           files_modified: List[str] = Field(default_factory=list)

       class FileConflictResponse(BaseModel):
           feature_id: int
           files_modified: List[str]
           conflicting_features: List[Dict]
           conflict_groups: List[List[int]]
       ```
     - Added helper functions:
       - `get_file_conflict_groups()` - Maps files to feature IDs
       - `get_features_sharing_files()` - Finds features sharing files
       - `get_full_conflict_chain()` - Combines dependency and file conflict chains
     - Added new endpoints:
       - `PUT /{name}/features/{id}/files-modified`
       - `GET /{name}/features/{id}/file-conflicts`
       - `GET /{name}/features/file-conflicts`
     - Updated `assign_feature_to_agent` to use `get_full_conflict_chain` instead of just `get_dependency_chain`
     - Fixed route ordering - moved `/features/file-conflicts` before `/features/{feature_id}`

   - **start_server_8104.sh** and **start_server_8105.sh** - Created new server startup scripts for testing

4. Errors and fixes:
   - **Edit tool "File has been unexpectedly modified" errors**: Used bash heredoc (`cat > file << 'EOF'`) to write files, or used Task subagent
   - **Route ordering conflict**: `/features/file-conflicts` was being matched as `feature_id`. Fixed by moving the static route before the dynamic `{feature_id}` route using Task subagent
   - **Server port conflicts**: Couldn't kill existing Python processes (pkill not allowed). Created new server startup scripts for different ports and started server on port 8105
   - **Database migration not running**: Old server didn't have new migration code. Started fresh server on new port to trigger migration
   - **Write tool "File has not been read yet" error**: Encountered when trying to update claude-progress.txt at end of session

5. Problem Solving:
   - Successfully implemented file conflict detection that automatically assigns features sharing files to the same agent
   - Verified through API testing and browser UI verification
   - Created test project with 3 features: 2 sharing files (A and B share src/app.js), 1 independent (C)
   - When assigning Feature A to Agent A, Feature B was automatically assigned to Agent A too
   - Attempting to assign Feature B to Agent B correctly returned 409 Conflict error
   - Screenshot verification showed correct agent badges in UI

6. All user messages:
   - Initial system prompt with detailed instructions for autonomous development task
   - System reminders about TodoWrite tool (not acted upon as instructed)
   - System reminders about command blocking (cd, python3, python, sed, stat, netstat, tr, port, pkill)
   - No explicit user feedback during this session - all messages were system/tool results

7. Pending Tasks:
   - Update claude-progress.txt (failed due to file read error)
   - Feature #80: Git commits coordinated between agents (next feature to implement)
   - Feature #81: Agent crash handling
   - Navigation features (#99-102, #105)
   - Security feature #97

8. Current Work:
   Feature #79 "File conflict detection works" was completed and marked as passing. The last action was attempting to update `claude-progress.txt` with session progress, which failed with "File has not been read yet" error. The git commit was successful:
   ```
   [master fbfc408] feat: Add file conflict detection for dual-agent execution
   3 files changed, 156 insertions(+), 7 deletions(-)
   ```

   Progress: 98/106 features (92.5%)
   Server running on port 8105 with latest code.

9. Optional Next Step:
   Complete the progress notes update by reading claude-progress.txt first, then writing the updated content. After that, the next feature to implement is #80 "Git commits coordinated between agents" which requires implementing a commit coordination/locking mechanism to ensure git commits happen sequentially when both agents are working.

   From the feature_get_next response:
   ```
   "id": 80,
   "name": "Git commits coordinated between agents",
   "description": "Verify git commits are sequential, not concurrent",
   "steps": [
     "Step 1: Start both agents doing work",
     "Step 2: Both agents complete features",
     "Step 3: Verify commits happen one at a time",
     "Step 4: Verify no merge conflicts created"
   ]
   ```.

If you need specific details from before compaction (like exact code snippets, error messages, or content you generated), read the full transcript at: C:\Users\MikeSwanson\.claude\projects\C--Users-MikeSwanson-claude-projects-Autocode-remix-Autocode-fork\88538f56-42b2-471f-a6d5-b3923d8208a2.jsonl
Please continue the conversation from where we left it off without asking the user any further questions. Continue with the last task that you were asked to work on.


I'll continue from where we left off. We just completed Feature #79 (File conflict detection) and the next step is to work on Feature #80 "Git commits coordinated between agents". Let me first get the current feature status and then implement the git commit coordination feature.


Good, we're at 92.5% (98/106). Now let me mark Feature #80 as in-progress and start implementing it.


TodoWrite

Implement git commit coordination for dual agents

Create commit lock mechanism in backend

Add commit queue/serialization API endpoints

Test sequential commits with dual agents

Mark feature #80 as passing


Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable

Implement git commit coordination for dual agents

Create commit lock mechanism in backend

Add commit queue/serialization API endpoints

Test sequential commits with dual agents

Mark feature #80 as passing


Let me examine the current project structure and agents router to understand how to implement git commit coordination:


     1→"""
     2→Features Router
     3→===============
     4→
     5→API endpoints for feature management within projects.
     6→"""
     7→
     8→from datetime import datetime
     9→from typing import Optional, List, Dict, Set
    10→
    11→from fastapi import APIRouter, Depends, HTTPException, status, Query
    12→from pydantic import BaseModel, Field
    13→from sqlalchemy import select, and_
    14→from sqlalchemy.ext.asyncio import AsyncSession
    15→
    16→from ..database import get_db
    17→from ..models import Project, Feature
    18→
    19→router = APIRouter(prefix="/api/projects", tags=["features"])
    20→
    21→
    22→# ============================================================================
    23→# Pydantic Schemas
    24→# ============================================================================
    25→
    26→class FeatureResponse(BaseModel):
    27→    """Schema for feature response."""
    28→    id: int
    29→    project_id: int
    30→    priority: int
    31→    category: str
    32→    name: str
    33→    description: Optional[str]
    34→    steps: List[str]
    35→    passes: bool
    36→    in_progress: bool
    37→    stalled: bool
    38→    stall_reason: Optional[str]
    39→    assigned_agent: Optional[str]
    40→    depends_on: List[int] = []
    41→    files_modified: List[str] = []
    42→    created_at: datetime
    43→    updated_at: datetime
    44→
    45→    class Config:
    46→        from_attributes = True
    47→
    48→
    49→class FeatureListResponse(BaseModel):
    50→    """Schema for feature list response."""
    51→    features: List[FeatureResponse]
    52→    count: int
    53→    total: int
    54→
    55→
    56→class FeatureCreate(BaseModel):
    57→    """Schema for creating a feature."""
    58→    priority: int = Field(default=0)
    59→    category: str = Field(default="general")
    60→    name: str = Field(..., min_length=1, max_length=255)
    61→    description: Optional[str] = None
    62→    steps: List[str] = Field(default_factory=list)
    63→    depends_on: List[int] = Field(default_factory=list)
    64→    files_modified: List[str] = Field(default_factory=list)
    65→
    66→
    67→class FeatureUpdate(BaseModel):
    68→    """Schema for updating a feature.
    69→
    70→    Note: Only specific fields are allowed to be updated.
    71→    Fields like name, description, category, and steps are immutable
    72→    after creation and will be ignored if provided.
    73→    """
    74→    priority: Optional[int] = None
    75→    passes: Optional[bool] = None
    76→    in_progress: Optional[bool] = None
    77→    stalled: Optional[bool] = None
    78→    stall_reason: Optional[str] = None
    79→    assigned_agent: Optional[str] = None
    80→    depends_on: Optional[List[int]] = None
    81→    files_modified: Optional[List[str]] = None
    82→
    83→
    84→class DependencyChainResponse(BaseModel):
    85→    """Schema for dependency chain response."""
    86→    feature_id: int
    87→    depends_on: List[int]
    88→    depended_by: List[int]
    89→    chain: List[int]  # All features in the dependency chain (same agent required)
    90→
    91→
    92→class SetDependenciesRequest(BaseModel):
    93→    """Schema for setting feature dependencies."""
    94→    depends_on: List[int] = Field(default_factory=list)
    95→
    96→
    97→class SetFilesModifiedRequest(BaseModel):
    98→    """Schema for setting files modified by a feature."""
    99→    files_modified: List[str] = Field(default_factory=list)
   100→
   101→
   102→class FileConflictResponse(BaseModel):
   103→    """Schema for file conflict detection response."""
   104→    feature_id: int
   105→    files_modified: List[str]
   106→    conflicting_features: List[Dict]
   107→    conflict_groups: List[List[int]]
   108→
   109→
   110→class FeatureStatsResponse(BaseModel):
   111→    """Schema for feature statistics."""
   112→    total: int
   113→    passing: int
   114→    in_progress: int
   115→    stalled: int
   116→    pending: int
   117→    percentage: float
   118→
   119→
   120→# ============================================================================
   121→# API Endpoints
   122→# ============================================================================
   123→
   124→@router.get("/{name}/features", response_model=FeatureListResponse)
   125→async def list_features(
   126→    name: str,
   127→    status: Optional[str] = Query(None, description="Filter by status: pending, passing, in_progress, stalled"),
   128→    category: Optional[str] = Query(None, description="Filter by category"),
   129→    limit: int = Query(100, ge=1, le=1000),
   130→    offset: int = Query(0, ge=0),
   131→    db: AsyncSession = Depends(get_db)
   132→):
   133→    """List features for a project with optional filters."""
   134→    # Verify project exists
   135→    result = await db.execute(select(Project).where(Project.name == name))
   136→    project = result.scalar_one_or_none()
   137→
   138→    if not project:
   139→        raise HTTPException(
   140→            status_code=status.HTTP_404_NOT_FOUND,
   141→            detail=f"Project '{name}' not found"
   142→        )
   143→
   144→    # Build query
   145→    query = select(Feature).where(Feature.project_id == project.id)
   146→
   147→    # Apply status filter
   148→    if status:
   149→        if status == "pending":
   150→            query = query.where(and_(
   151→                Feature.passes == False,
   152→                Feature.in_progress == False,
   153→                Feature.stalled == False
   154→            ))
   155→        elif status == "passing":
   156→            query = query.where(Feature.passes == True)
   157→        elif status == "in_progress":
   158→            query = query.where(Feature.in_progress == True)
   159→        elif status == "stalled":
   160→            query = query.where(Feature.stalled == True)
   161→
   162→    # Apply category filter
   163→    if category:
   164→        query = query.where(Feature.category == category)
   165→
   166→    # Get total count before pagination
   167→    count_query = select(Feature).where(Feature.project_id == project.id)
   168→    count_result = await db.execute(count_query)
   169→    total = len(count_result.scalars().all())
   170→
   171→    # Apply pagination
   172→    query = query.order_by(Feature.priority).offset(offset).limit(limit)
   173→    result = await db.execute(query)
   174→    features = result.scalars().all()
   175→
   176→    return FeatureListResponse(
   177→        features=[FeatureResponse.model_validate(f) for f in features],
   178→        count=len(features),
   179→        total=total
   180→    )
   181→
   182→
   183→@router.get("/{name}/features/stats", response_model=FeatureStatsResponse)
   184→async def get_feature_stats(name: str, db: AsyncSession = Depends(get_db)):
   185→    """Get feature statistics for a project."""
   186→    # Verify project exists
   187→    result = await db.execute(select(Project).where(Project.name == name))
   188→    project = result.scalar_one_or_none()
   189→
   190→    if not project:
   191→        raise HTTPException(
   192→            status_code=status.HTTP_404_NOT_FOUND,
   193→            detail=f"Project '{name}' not found"
   194→        )
   195→
   196→    # Get all features
   197→    result = await db.execute(select(Feature).where(Feature.project_id == project.id))
   198→    features = result.scalars().all()
   199→
   200→    total = len(features)
   201→    passing = sum(1 for f in features if f.passes)
   202→    in_progress = sum(1 for f in features if f.in_progress)
   203→    stalled = sum(1 for f in features if f.stalled)
   204→    pending = total - passing - in_progress - stalled
   205→
   206→    return FeatureStatsResponse(
   207→        total=total,
   208→        passing=passing,
   209→        in_progress=in_progress,
   210→        stalled=stalled,
   211→        pending=pending,
   212→        percentage=round((passing / total * 100) if total > 0 else 0, 1)
   213→    )
   214→
   215→
   216→@router.get("/{name}/features/file-conflicts", response_model=List[Dict])
   217→async def get_all_file_conflicts(name: str, db: AsyncSession = Depends(get_db)):
   218→    """Get all file conflicts in the project."""
   219→    result = await db.execute(select(Project).where(Project.name == name))
   220→    project = result.scalar_one_or_none()
   221→    if not project:
   222→        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail=f"Project '{name}' not found")
   223→    result = await db.execute(select(Feature).where(Feature.project_id == project.id))
   224→    features = list(result.scalars().all())
   225→    feature_map = {f.id: f for f in features}
   226→    file_to_features = get_file_conflict_groups(features)
   227→    conflicts = []
   228→    for file_path, fids in file_to_features.items():
   229→        if len(fids) > 1:
   230→            feature_info = []
   231→            agents = set()
   232→            for fid in fids:
   233→                f = feature_map[fid]
   234→                feature_info.append({"feature_id": fid, "name": f.name, "assigned_agent": f.assigned_agent})
   235→                if f.assigned_agent:
   236→                    agents.add(f.assigned_agent)
   237→            conflicts.append({"file_path": file_path, "feature_count": len(fids), "features": feature_info, "has_agent_conflict": len(agents) > 1})
   238→    return conflicts
   239→
   240→
   241→@router.get("/{name}/features/{feature_id}", response_model=FeatureResponse)
   242→async def get_feature(name: str, feature_id: int, db: AsyncSession = Depends(get_db)):
   243→    """Get a specific feature by ID."""
   244→    # Verify project exists
   245→    result = await db.execute(select(Project).where(Project.name == name))
   246→    project = result.scalar_one_or_none()
   247→
   248→    if not project:
   249→        raise HTTPException(
   250→            status_code=status.HTTP_404_NOT_FOUND,
   251→            detail=f"Project '{name}' not found"
   252→        )
   253→
   254→    # Get feature
   255→    result = await db.execute(
   256→        select(Feature).where(and_(
   257→            Feature.id == feature_id,
   258→            Feature.project_id == project.id
   259→        ))
   260→    )
   261→    feature = result.scalar_one_or_none()
   262→
   263→    if not feature:
   264→        raise HTTPException(
   265→            status_code=status.HTTP_404_NOT_FOUND,
   266→            detail=f"Feature {feature_id} not found in project '{name}'"
   267→        )
   268→
   269→    return FeatureResponse.model_validate(feature)
   270→
   271→
   272→@router.post("/{name}/features", response_model=FeatureResponse, status_code=status.HTTP_201_CREATED)
   273→async def create_feature(name: str, feature: FeatureCreate, db: AsyncSession = Depends(get_db)):
   274→    """Create a new feature for a project."""
   275→    # Verify project exists
   276→    result = await db.execute(select(Project).where(Project.name == name))
   277→    project = result.scalar_one_or_none()
   278→
   279→    if not project:
   280→        raise HTTPException(
   281→            status_code=status.HTTP_404_NOT_FOUND,
   282→            detail=f"Project '{name}' not found"
   283→        )
   284→
   285→    # Create feature
   286→    db_feature = Feature(
   287→        project_id=project.id,
   288→        priority=feature.priority,
   289→        category=feature.category,
   290→        name=feature.name,
   291→        description=feature.description,
   292→        steps=feature.steps,
   293→        depends_on=feature.depends_on,
   294→        files_modified=feature.files_modified,
   295→    )
   296→    db.add(db_feature)
   297→    await db.commit()
   298→    await db.refresh(db_feature)
   299→
   300→    return FeatureResponse.model_validate(db_feature)
   301→
   302→
   303→@router.put("/{name}/features/{feature_id}", response_model=FeatureResponse)
   304→async def update_feature(name: str, feature_id: int, feature_update: FeatureUpdate, db: AsyncSession = Depends(get_db)):
   305→    """Update a feature (limited fields)."""
   306→    # Verify project exists
   307→    result = await db.execute(select(Project).where(Project.name == name))
   308→    project = result.scalar_one_or_none()
   309→
   310→    if not project:
   311→        raise HTTPException(
   312→            status_code=status.HTTP_404_NOT_FOUND,
   313→            detail=f"Project '{name}' not found"
   314→        )
   315→
   316→    # Get feature
   317→    result = await db.execute(
   318→        select(Feature).where(and_(
   319→            Feature.id == feature_id,
   320→            Feature.project_id == project.id
   321→        ))
   322→    )
   323→    feature = result.scalar_one_or_none()
   324→
   325→    if not feature:
   326→        raise HTTPException(
   327→            status_code=status.HTTP_404_NOT_FOUND,
   328→            detail=f"Feature {feature_id} not found in project '{name}'"
   329→        )
   330→
   331→    # Update allowed fields only (name, description, category, steps are immutable)
   332→    if feature_update.priority is not None:
   333→        feature.priority = feature_update.priority
   334→    if feature_update.passes is not None:
   335→        feature.passes = feature_update.passes
   336→    if feature_update.in_progress is not None:
   337→        feature.in_progress = feature_update.in_progress
   338→    if feature_update.stalled is not None:
   339→        feature.stalled = feature_update.stalled
   340→    if feature_update.stall_reason is not None:
   341→        feature.stall_reason = feature_update.stall_reason
   342→    if feature_update.assigned_agent is not None:
   343→        feature.assigned_agent = feature_update.assigned_agent
   344→    if feature_update.depends_on is not None:
   345→        feature.depends_on = feature_update.depends_on
   346→    if feature_update.files_modified is not None:
   347→        feature.files_modified = feature_update.files_modified
   348→
   349→    feature.updated_at = datetime.utcnow()
   350→    await db.commit()
   351→    await db.refresh(feature)
   352→
   353→    return FeatureResponse.model_validate(feature)
   354→
   355→
   356→@router.post("/{name}/features/{feature_id}/unstall", response_model=FeatureResponse)
   357→async def unstall_feature(name: str, feature_id: int, db: AsyncSession = Depends(get_db)):
   358→    """Clear stalled status from a feature."""
   359→    # Verify project exists
   360→    result = await db.execute(select(Project).where(Project.name == name))
   361→    project = result.scalar_one_or_none()
   362→
   363→    if not project:
   364→        raise HTTPException(
   365→            status_code=status.HTTP_404_NOT_FOUND,
   366→            detail=f"Project '{name}' not found"
   367→        )
   368→
   369→    # Get feature
   370→    result = await db.execute(
   371→        select(Feature).where(and_(
   372→            Feature.id == feature_id,
   373→            Feature.project_id == project.id
   374→        ))
   375→    )
   376→    feature = result.scalar_one_or_none()
   377→
   378→    if not feature:
   379→        raise HTTPException(
   380→            status_code=status.HTTP_404_NOT_FOUND,
   381→            detail=f"Feature {feature_id} not found in project '{name}'"
   382→        )
   383→
   384→    feature.stalled = False
   385→    feature.stall_reason = None
   386→    feature.updated_at = datetime.utcnow()
   387→    await db.commit()
   388→    await db.refresh(feature)
   389→
   390→    return FeatureResponse.model_validate(feature)
   391→
   392→
   393→# ============================================================================
   394→# Dependency Management Endpoints
   395→# ============================================================================
   396→
   397→def get_dependency_chain(feature_id: int, features: List[Feature]) -> set:
   398→    """Get all features in the dependency chain (recursively).
   399→
   400→    This finds all features that either:
   401→    - This feature depends on (directly or transitively)
   402→    - Depend on this feature (directly or transitively)
   403→
   404→    All features in this chain must be assigned to the same agent.
   405→    """
   406→    feature_map = {f.id: f for f in features}
   407→    chain = set()
   408→    visited = set()
   409→
   410→    def collect_dependencies(fid: int):
   411→        """Recursively collect all features this one depends on."""
   412→        if fid in visited or fid not in feature_map:
   413→            return
   414→        visited.add(fid)
   415→        chain.add(fid)
   416→        feature = feature_map[fid]
   417→        for dep_id in (feature.depends_on or []):
   418→            collect_dependencies(dep_id)
   419→
   420→    def collect_dependents(fid: int):
   421→        """Recursively collect all features that depend on this one."""
   422→        if fid in visited:
   423→            return
   424→        visited.add(fid)
   425→        chain.add(fid)
   426→        for f in features:
   427→            if fid in (f.depends_on or []):
   428→                collect_dependents(f.id)
   429→
   430→    # Reset visited for each direction
   431→    visited = set()
   432→    collect_dependencies(feature_id)
   433→    visited = set()
   434→    collect_dependents(feature_id)
   435→
   436→    return chain
   437→
   438→
   439→def get_file_conflict_groups(features: List[Feature]) -> Dict[str, Set[int]]:
   440→    """Build a mapping of files to feature IDs that modify them."""
   441→    file_to_features: Dict[str, Set[int]] = {}
   442→    for feature in features:
   443→        for file_path in (feature.files_modified or []):
   444→            if file_path not in file_to_features:
   445→                file_to_features[file_path] = set()
   446→            file_to_features[file_path].add(feature.id)
   447→    return file_to_features
   448→
   449→
   450→def get_features_sharing_files(feature_id: int, features: List[Feature]) -> Set[int]:
   451→    """Get all feature IDs that share files with the given feature."""
   452→    feature_map = {f.id: f for f in features}
   453→    target_feature = feature_map.get(feature_id)
   454→    if not target_feature or not target_feature.files_modified:
   455→        return {feature_id}
   456→    file_to_features = get_file_conflict_groups(features)
   457→    related_features = set()
   458→    for file_path in target_feature.files_modified:
   459→        if file_path in file_to_features:
   460→            related_features.update(file_to_features[file_path])
   461→    return related_features
   462→
   463→
   464→def get_full_conflict_chain(feature_id: int, features: List[Feature]) -> Set[int]:
   465→    """Get all features that must be on the same agent due to dependencies OR file conflicts."""
   466→    dep_chain = get_dependency_chain(feature_id, features)
   467→    all_related = set(dep_chain)
   468→    changed = True
   469→    while changed:
   470→        changed = False
   471→        new_related = set()
   472→        for fid in all_related:
   473→            file_conflicts = get_features_sharing_files(fid, features)
   474→            for conflict_fid in file_conflicts:
   475→                if conflict_fid not in all_related:
   476→                    new_related.add(conflict_fid)
   477→                    new_related.update(get_dependency_chain(conflict_fid, features))
   478→        if new_related:
   479→            all_related.update(new_related)
   480→            changed = True
   481→    return all_related
   482→
   483→
   484→@router.get("/{name}/features/{feature_id}/dependencies", response_model=DependencyChainResponse)
   485→async def get_feature_dependencies(name: str, feature_id: int, db: AsyncSession = Depends(get_db)):
   486→    """Get dependency information for a feature."""
   487→    # Verify project exists
   488→    result = await db.execute(select(Project).where(Project.name == name))
   489→    project = result.scalar_one_or_none()
   490→
   491→    if not project:
   492→        raise HTTPException(
   493→            status_code=status.HTTP_404_NOT_FOUND,
   494→            detail=f"Project '{name}' not found"
   495→        )
   496→
   497→    # Get all features for the project
   498→    result = await db.execute(select(Feature).where(Feature.project_id == project.id))
   499→    features = result.scalars().all()
   500→
   501→    # Find the target feature
   502→    target_feature = None
   503→    for f in features:
   504→        if f.id == feature_id:
   505→            target_feature = f
   506→            break
   507→
   508→    if not target_feature:
   509→        raise HTTPException(
   510→            status_code=status.HTTP_404_NOT_FOUND,
   511→            detail=f"Feature {feature_id} not found in project '{name}'"
   512→        )
   513→
   514→    # Get features that depend on this one
   515→    depended_by = [f.id for f in features if feature_id in (f.depends_on or [])]
   516→
   517→    # Get full dependency chain
   518→    chain = get_dependency_chain(feature_id, features)
   519→
   520→    return DependencyChainResponse(
   521→        feature_id=feature_id,
   522→        depends_on=target_feature.depends_on or [],
   523→        depended_by=depended_by,
   524→        chain=sorted(list(chain))
   525→    )
   526→
   527→
   528→@router.put("/{name}/features/{feature_id}/dependencies", response_model=FeatureResponse)
   529→async def set_feature_dependencies(
   530→    name: str,
   531→    feature_id: int,
   532→    request: SetDependenciesRequest,
   533→    db: AsyncSession = Depends(get_db)
   534→):
   535→    """Set dependencies for a feature.
   536→
   537→    If the feature or any of its dependencies are already assigned to an agent,
   538→    all features in the dependency chain will be assigned to the same agent.
   539→    """
   540→    # Verify project exists
   541→    result = await db.execute(select(Project).where(Project.name == name))
   542→    project = result.scalar_one_or_none()
   543→
   544→    if not project:
   545→        raise HTTPException(
   546→            status_code=status.HTTP_404_NOT_FOUND,
   547→            detail=f"Project '{name}' not found"
   548→        )
   549→
   550→    # Get all features for the project
   551→    result = await db.execute(select(Feature).where(Feature.project_id == project.id))
   552→    features = list(result.scalars().all())
   553→    feature_map = {f.id: f for f in features}
   554→
   555→    # Find the target feature
   556→    if feature_id not in feature_map:
   557→        raise HTTPException(
   558→            status_code=status.HTTP_404_NOT_FOUND,
   559→            detail=f"Feature {feature_id} not found in project '{name}'"
   560→        )
   561→
   562→    target_feature = feature_map[feature_id]
   563→
   564→    # Validate all dependency IDs exist in the same project
   565→    for dep_id in request.depends_on:
   566→        if dep_id not in feature_map:
   567→            raise HTTPException(
   568→                status_code=status.HTTP_400_BAD_REQUEST,
   569→                detail=f"Dependency feature {dep_id} not found in project '{name}'"
   570→            )
   571→        if dep_id == feature_id:
   572→            raise HTTPException(
   573→                status_code=status.HTTP_400_BAD_REQUEST,
   574→                detail="A feature cannot depend on itself"
   575→            )
   576→
   577→    # Detect circular dependencies - check if any new dependency would create a path back to target
   578→    def has_circular_dependency(target_id: int, new_deps: List[int]) -> bool:
   579→        """Check if adding new_deps to target_id creates a cycle.
   580→
   581→        A cycle exists if any of the new dependencies eventually depend on target_id.
   582→        For example: if we add dep 19 to feature 20, check if 19 depends on 20 (directly or indirectly).
   583→        """
   584→        def feature_depends_on(fid: int, check_id: int, visited: set) -> bool:
   585→            """Check if feature fid depends (directly or indirectly) on check_id."""
   586→            if fid == check_id:
   587→                return True
   588→            if fid in visited:
   589→                return False
   590→            visited.add(fid)
   591→
   592→            feature = feature_map.get(fid)
   593→            if not feature:
   594→                return False
   595→
   596→            deps = feature.depends_on or []
   597→            for dep_id in deps:
   598→                if feature_depends_on(dep_id, check_id, visited):
   599→                    return True
   600→            return False
   601→
   602→        # Check: would any new dependency create a path back to target_id?
   603→        for dep_id in new_deps:
   604→            if feature_depends_on(dep_id, target_id, set()):
   605→                return True
   606→        return False
   607→
   608→    if has_circular_dependency(feature_id, request.depends_on):
   609→        raise HTTPException(
   610→            status_code=status.HTTP_400_BAD_REQUEST,
   611→            detail="Circular dependency detected"
   612→        )
   613→
   614→    # Update the dependencies
   615→    target_feature.depends_on = request.depends_on
   616→    target_feature.updated_at = datetime.utcnow()
   617→
   618→    # Update the feature map for chain calculation
   619→    features = [f if f.id != feature_id else target_feature for f in features]
   620→
   621→    # Get the full dependency chain
   622→    chain = get_dependency_chain(feature_id, features)
   623→
   624→    # Check if any feature in the chain has an assigned agent
   625→    assigned_agent = None
   626→    for fid in chain:
   627→        if feature_map[fid].assigned_agent:
   628→            if assigned_agent is None:
   629→                assigned_agent = feature_map[fid].assigned_agent
   630→            elif assigned_agent != feature_map[fid].assigned_agent:
   631→                # Conflict: different agents assigned to features in the same chain
   632→                # Prioritize keeping all in the same chain
   633→                pass
   634→
   635→    # If any feature in the chain has an agent, assign all to that agent
   636→    if assigned_agent:
   637→        for fid in chain:
   638→            if feature_map[fid].assigned_agent != assigned_agent:
   639→                feature_map[fid].assigned_agent = assigned_agent
   640→                feature_map[fid].updated_at = datetime.utcnow()
   641→
   642→    await db.commit()
   643→    await db.refresh(target_feature)
   644→
   645→    return FeatureResponse.model_validate(target_feature)
   646→
   647→
   648→@router.put("/{name}/features/{feature_id}/files-modified", response_model=FeatureResponse)
   649→async def set_files_modified(
   650→    name: str,
   651→    feature_id: int,
   652→    request: SetFilesModifiedRequest,
   653→    db: AsyncSession = Depends(get_db)
   654→):
   655→    """Set the list of files modified by a feature."""
   656→    result = await db.execute(select(Project).where(Project.name == name))
   657→    project = result.scalar_one_or_none()
   658→    if not project:
   659→        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail=f"Project '{name}' not found")
   660→    result = await db.execute(select(Feature).where(and_(Feature.id == feature_id, Feature.project_id == project.id)))
   661→    feature = result.scalar_one_or_none()
   662→    if not feature:
   663→        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail=f"Feature {feature_id} not found")
   664→    feature.files_modified = request.files_modified
   665→    feature.updated_at = datetime.utcnow()
   666→    await db.commit()
   667→    await db.refresh(feature)
   668→    return FeatureResponse.model_validate(feature)
   669→
   670→
   671→@router.get("/{name}/features/{feature_id}/file-conflicts", response_model=FileConflictResponse)
   672→async def get_file_conflicts(name: str, feature_id: int, db: AsyncSession = Depends(get_db)):
   673→    """Get file conflict information for a feature."""
   674→    result = await db.execute(select(Project).where(Project.name == name))
   675→    project = result.scalar_one_or_none()
   676→    if not project:
   677→        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail=f"Project '{name}' not found")
   678→    result = await db.execute(select(Feature).where(Feature.project_id == project.id))
   679→    features = list(result.scalars().all())
   680→    feature_map = {f.id: f for f in features}
   681→    if feature_id not in feature_map:
   682→        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail=f"Feature {feature_id} not found")
   683→    target_feature = feature_map[feature_id]
   684→    file_to_features = get_file_conflict_groups(features)
   685→    conflicting_features = []
   686→    seen_ids = {feature_id}
   687→    for file_path in (target_feature.files_modified or []):
   688→        if file_path in file_to_features:
   689→            for fid in file_to_features[file_path]:
   690→                if fid not in seen_ids:
   691→                    seen_ids.add(fid)
   692→                    f = feature_map[fid]
   693→                    shared_files = [fp for fp in (f.files_modified or []) if fp in (target_feature.files_modified or [])]
   694→                    conflicting_features.append({"feature_id": fid, "name": f.name, "files": shared_files, "assigned_agent": f.assigned_agent})
   695→    conflict_groups = []
   696→    for file_path, fids in file_to_features.items():
   697→        if len(fids) > 1 and feature_id in fids:
   698→            conflict_groups.append(sorted(list(fids)))
   699→    return FileConflictResponse(feature_id=feature_id, files_modified=target_feature.files_modified or [], conflicting_features=conflicting_features, conflict_groups=conflict_groups)
   700→
   701→
   702→@router.post("/{name}/features/{feature_id}/assign-agent", response_model=List[FeatureResponse])
   703→async def assign_feature_to_agent(
   704→    name: str,
   705→    feature_id: int,
   706→    agent_id: str = Query(..., regex="^[AB]$", description="Agent ID (A or B)"),
   707→    db: AsyncSession = Depends(get_db)
   708→):
   709→    """Assign a feature and all its dependencies/file conflicts to an agent.
   710→
   711→    This ensures that all features in the dependency chain AND file conflict
   712→    chain are assigned to the same agent to prevent conflicts.
   713→    """
   714→    # Verify project exists
   715→    result = await db.execute(select(Project).where(Project.name == name))
   716→    project = result.scalar_one_or_none()
   717→
   718→    if not project:
   719→        raise HTTPException(
   720→            status_code=status.HTTP_404_NOT_FOUND,
   721→            detail=f"Project '{name}' not found"
   722→        )
   723→
   724→    # Get all features for the project
   725→    result = await db.execute(select(Feature).where(Feature.project_id == project.id))
   726→    features = list(result.scalars().all())
   727→    feature_map = {f.id: f for f in features}
   728→
   729→    # Find the target feature
   730→    if feature_id not in feature_map:
   731→        raise HTTPException(
   732→            status_code=status.HTTP_404_NOT_FOUND,
   733→            detail=f"Feature {feature_id} not found in project '{name}'"
   734→        )
   735→
   736→    # Get the full conflict chain (dependencies AND file conflicts)
   737→    chain = get_full_conflict_chain(feature_id, features)
   738→
   739→    # Check for conflicts with other agent
   740→    other_agent = "B" if agent_id == "A" else "A"
   741→    conflicting_features = [
   742→        fid for fid in chain
   743→        if feature_map[fid].assigned_agent == other_agent
   744→    ]
   745→
   746→    if conflicting_features:
   747→        raise HTTPException(
   748→            status_code=status.HTTP_409_CONFLICT,
   749→            detail=f"Features {conflicting_features} in dependency/file conflict chain are assigned to Agent {other_agent}"
   750→        )
   751→
   752→    # Assign all features in the chain to the agent
   753→    updated_features = []
   754→    for fid in chain:
   755→        feature = feature_map[fid]
   756→        if feature.assigned_agent != agent_id:
   757→            feature.assigned_agent = agent_id
   758→            feature.updated_at = datetime.utcnow()
   759→        updated_features.append(feature)
   760→
   761→    await db.commit()
   762→
   763→    # Refresh all updated features
   764→    for feature in updated_features:
   765→        await db.refresh(feature)
   766→
   767→    return [FeatureResponse.model_validate(f) for f in updated_features]
   768→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

"""
Features Router
===============

API endpoints for feature management within projects.
"""

from datetime import datetime
from typing import Optional, List, Dict, Set

from fastapi import APIRouter, Depends, HTTPException, status, Query
from pydantic import BaseModel, Field
from sqlalchemy import select, and_
from sqlalchemy.ext.asyncio import AsyncSession

from ..database import get_db
from ..models import Project, Feature

router = APIRouter(prefix="/api/projects", tags=["features"])

# ============================================================================
# Pydantic Schemas
# ============================================================================

class FeatureResponse(BaseModel):
    """Schema for feature response."""
    id: int
    project_id: int
    priority: int
    category: str
    name: str
    description: Optional[str]
    steps: List[str]
    passes: bool
    in_progress: bool
    stalled: bool
    stall_reason: Optional[str]
    assigned_agent: Optional[str]
    depends_on: List[int] = []
    files_modified: List[str] = []
    created_at: datetime
    updated_at: datetime

    class Config:
        from_attributes = True

class FeatureListResponse(BaseModel):
    """Schema for feature list response."""
    features: List[FeatureResponse]
    count: int
    total: int

class FeatureCreate(BaseModel):
    """Schema for creating a feature."""
    priority: int = Field(default=0)
    category: str = Field(default="general")
    name: str = Field(..., min_length=1, max_length=255)
    description: Optional[str] = None
    steps: List[str] = Field(default_factory=list)
    depends_on: List[int] = Field(default_factory=list)
    files_modified: List[str] = Field(default_factory=list)

class FeatureUpdate(BaseModel):
    """Schema for updating a feature.

    Note: Only specific fields are allowed to be updated.
    Fields like name, description, category, and steps are immutable
    after creation and will be ignored if provided.
    """
    priority: Optional[int] = None
    passes: Optional[bool] = None
    in_progress: Optional[bool] = None
    stalled: Optional[bool] = None
    stall_reason: Optional[str] = None
    assigned_agent: Optional[str] = None
    depends_on: Optional[List[int]] = None
    files_modified: Optional[List[str]] = None

class DependencyChainResponse(BaseModel):
    """Schema for dependency chain response."""
    feature_id: int
    depends_on: List[int]
    depended_by: List[int]
    chain: List[int]  # All features in the dependency chain (same agent required)

class SetDependenciesRequest(BaseModel):
    """Schema for setting feature dependencies."""
    depends_on: List[int] = Field(default_factory=list)

class SetFilesModifiedRequest(BaseModel):
    """Schema for setting files modified by a feature."""
    files_modified: List[str] = Field(default_factory=list)

class FileConflictResponse(BaseModel):
    """Schema for file conflict detection response."""
    feature_id: int
    files_modified: List[str]
    conflicting_features: List[Dict]
    conflict_groups: List[List[int]]

class FeatureStatsResponse(BaseModel):
    """Schema for feature statistics."""
    total: int
    passing: int
    in_progress: int
    stalled: int
    pending: int
    percentage: float

# ============================================================================
# API Endpoints
# ============================================================================

@router.get("/{name}/features", response_model=FeatureListResponse)
async def list_features(
    name: str,
    status: Optional[str] = Query(None, description="Filter by status: pending, passing, in_progress, stalled"),
    category: Optional[str] = Query(None, description="Filter by category"),
    limit: int = Query(100, ge=1, le=1000),
    offset: int = Query(0, ge=0),
    db: AsyncSession = Depends(get_db)
):
    """List features for a project with optional filters."""
    # Verify project exists
    result = await db.execute(select(Project).where(Project.name == name))
    project = result.scalar_one_or_none()

    if not project:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Project '{name}' not found"
        )

    # Build query
    query = select(Feature).where(Feature.project_id == project.id)

    # Apply status filter
    if status:
        if status == "pending":
            query = query.where(and_(
                Feature.passes == False,
                Feature.in_progress == False,
                Feature.stalled == False
            ))
        elif status == "passing":
            query = query.where(Feature.passes == True)
        elif status == "in_progress":
            query = query.where(Feature.in_progress == True)
        elif status == "stalled":
            query = query.where(Feature.stalled == True)

    # Apply category filter
    if category:
        query = query.where(Feature.category == category)

    # Get total count before pagination
    count_query = select(Feature).where(Feature.project_id == project.id)
    count_result = await db.execute(count_query)
    total = len(count_result.scalars().all())

    # Apply pagination
    query = query.order_by(Feature.priority).offset(offset).limit(limit)
    result = await db.execute(query)
    features = result.scalars().all()

    return FeatureListResponse(
        features=[FeatureResponse.model_validate(f) for f in features],
        count=len(features),
        total=total
    )

@router.get("/{name}/features/stats", response_model=FeatureStatsResponse)
async def get_feature_stats(name: str, db: AsyncSession = Depends(get_db)):
    """Get feature statistics for a project."""
    # Verify project exists
    result = await db.execute(select(Project).where(Project.name == name))
    project = result.scalar_one_or_none()

    if not project:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Project '{name}' not found"
        )

    # Get all features
    result = await db.execute(select(Feature).where(Feature.project_id == project.id))
    features = result.scalars().all()

    total = len(features)
    passing = sum(1 for f in features if f.passes)
    in_progress = sum(1 for f in features if f.in_progress)
    stalled = sum(1 for f in features if f.stalled)
    pending = total - passing - in_progress - stalled

    return FeatureStatsResponse(
        total=total,
        passing=passing,
        in_progress=in_progress,
        stalled=stalled,
        pending=pending,
        percentage=round((passing / total * 100) if total > 0 else 0, 1)
    )

@router.get("/{name}/features/file-conflicts", response_model=List[Dict])
async def get_all_file_conflicts(name: str, db: AsyncSession = Depends(get_db)):
    """Get all file conflicts in the project."""
    result = await db.execute(select(Project).where(Project.name == name))
    project = result.scalar_one_or_none()
    if not project:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail=f"Project '{name}' not found")
    result = await db.execute(select(Feature).where(Feature.project_id == project.id))
    features = list(result.scalars().all())
    feature_map = {f.id: f for f in features}
    file_to_features = get_file_conflict_groups(features)
    conflicts = []
    for file_path, fids in file_to_features.items():
        if len(fids) > 1:
            feature_info = []
            agents = set()
            for fid in fids:
                f = feature_map[fid]
                feature_info.append({"feature_id": fid, "name": f.name, "assigned_agent": f.assigned_agent})
                if f.assigned_agent:
                    agents.add(f.assigned_agent)
            conflicts.append({"file_path": file_path, "feature_count": len(fids), "features": feature_info, "has_agent_conflict": len(agents) > 1})
    return conflicts

@router.get("/{name}/features/{feature_id}", response_model=FeatureResponse)
async def get_feature(name: str, feature_id: int, db: AsyncSession = Depends(get_db)):
    """Get a specific feature by ID."""
    # Verify project exists
    result = await db.execute(select(Project).where(Project.name == name))
    project = result.scalar_one_or_none()

    if not project:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Project '{name}' not found"
        )

    # Get feature
    result = await db.execute(
        select(Feature).where(and_(
            Feature.id == feature_id,
            Feature.project_id == project.id
        ))
    )
    feature = result.scalar_one_or_none()

    if not feature:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Feature {feature_id} not found in project '{name}'"
        )

    return FeatureResponse.model_validate(feature)

@router.post("/{name}/features", response_model=FeatureResponse, status_code=status.HTTP_201_CREATED)
async def create_feature(name: str, feature: FeatureCreate, db: AsyncSession = Depends(get_db)):
    """Create a new feature for a project."""
    # Verify project exists
    result = await db.execute(select(Project).where(Project.name == name))
    project = result.scalar_one_or_none()

    if not project:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Project '{name}' not found"
        )

    # Create feature
    db_feature = Feature(
        project_id=project.id,
        priority=feature.priority,
        category=feature.category,
        name=feature.name,
        description=feature.description,
        steps=feature.steps,
        depends_on=feature.depends_on,
        files_modified=feature.files_modified,
    )
    db.add(db_feature)
    await db.commit()
    await db.refresh(db_feature)

    return FeatureResponse.model_validate(db_feature)

@router.put("/{name}/features/{feature_id}", response_model=FeatureResponse)
async def update_feature(name: str, feature_id: int, feature_update: FeatureUpdate, db: AsyncSession = Depends(get_db)):
    """Update a feature (limited fields)."""
    # Verify project exists
    result = await db.execute(select(Project).where(Project.name == name))
    project = result.scalar_one_or_none()

    if not project:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Project '{name}' not found"
        )

    # Get feature
    result = await db.execute(
        select(Feature).where(and_(
            Feature.id == feature_id,
            Feature.project_id == project.id
        ))
    )
    feature = result.scalar_one_or_none()

    if not feature:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Feature {feature_id} not found in project '{name}'"
        )

    # Update allowed fields only (name, description, category, steps are immutable)
    if feature_update.priority is not None:
        feature.priority = feature_update.priority
    if feature_update.passes is not None:
        feature.passes = feature_update.passes
    if feature_update.in_progress is not None:
        feature.in_progress = feature_update.in_progress
    if feature_update.stalled is not None:
        feature.stalled = feature_update.stalled
    if feature_update.stall_reason is not None:
        feature.stall_reason = feature_update.stall_reason
    if feature_update.assigned_agent is not None:
        feature.assigned_agent = feature_update.assigned_agent
    if feature_update.depends_on is not None:
        feature.depends_on = feature_update.depends_on
    if feature_update.files_modified is not None:
        feature.files_modified = feature_update.files_modified

    feature.updated_at = datetime.utcnow()
    await db.commit()
    await db.refresh(feature)

    return FeatureResponse.model_validate(feature)

@router.post("/{name}/features/{feature_id}/unstall", response_model=FeatureResponse)
async def unstall_feature(name: str, feature_id: int, db: AsyncSession = Depends(get_db)):
    """Clear stalled status from a feature."""
    # Verify project exists
    result = await db.execute(select(Project).where(Project.name == name))
    project = result.scalar_one_or_none()

    if not project:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Project '{name}' not found"
        )

    # Get feature
    result = await db.execute(
        select(Feature).where(and_(
            Feature.id == feature_id,
            Feature.project_id == project.id
        ))
    )
    feature = result.scalar_one_or_none()

    if not feature:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Feature {feature_id} not found in project '{name}'"
        )

    feature.stalled = False
    feature.stall_reason = None
    feature.updated_at = datetime.utcnow()
    await db.commit()
    await db.refresh(feature)

    return FeatureResponse.model_validate(feature)

# ============================================================================
# Dependency Management Endpoints
# ============================================================================

def get_dependency_chain(feature_id: int, features: List[Feature]) -> set:
    """Get all features in the dependency chain (recursively).

    This finds all features that either:
    - This feature depends on (directly or transitively)
    - Depend on this feature (directly or transitively)

    All features in this chain must be assigned to the same agent.
    """
    feature_map = {f.id: f for f in features}
    chain = set()
    visited = set()

    def collect_dependencies(fid: int):
        """Recursively collect all features this one depends on."""
        if fid in visited or fid not in feature_map:
            return
        visited.add(fid)
        chain.add(fid)
        feature = feature_map[fid]
        for dep_id in (feature.depends_on or []):
            collect_dependencies(dep_id)

    def collect_dependents(fid: int):
        """Recursively collect all features that depend on this one."""
        if fid in visited:
            return
        visited.add(fid)
        chain.add(fid)
        for f in features:
            if fid in (f.depends_on or []):
                collect_dependents(f.id)

    # Reset visited for each direction
    visited = set()
    collect_dependencies(feature_id)
    visited = set()
    collect_dependents(feature_id)

    return chain

def get_file_conflict_groups(features: List[Feature]) -> Dict[str, Set[int]]:
    """Build a mapping of files to feature IDs that modify them."""
    file_to_features: Dict[str, Set[int]] = {}
    for feature in features:
        for file_path in (feature.files_modified or []):
            if file_path not in file_to_features:
                file_to_features[file_path] = set()
            file_to_features[file_path].add(feature.id)
    return file_to_features

def get_features_sharing_files(feature_id: int, features: List[Feature]) -> Set[int]:
    """Get all feature IDs that share files with the given feature."""
    feature_map = {f.id: f for f in features}
    target_feature = feature_map.get(feature_id)
    if not target_feature or not target_feature.files_modified:
        return {feature_id}
    file_to_features = get_file_conflict_groups(features)
    related_features = set()
    for file_path in target_feature.files_modified:
        if file_path in file_to_features:
            related_features.update(file_to_features[file_path])
    return related_features

def get_full_conflict_chain(feature_id: int, features: List[Feature]) -> Set[int]:
    """Get all features that must be on the same agent due to dependencies OR file conflicts."""
    dep_chain = get_dependency_chain(feature_id, features)
    all_related = set(dep_chain)
    changed = True
    while changed:
        changed = False
        new_related = set()
        for fid in all_related:
            file_conflicts = get_features_sharing_files(fid, features)
            for conflict_fid in file_conflicts:
                if conflict_fid not in all_related:
                    new_related.add(conflict_fid)
                    new_related.update(get_dependency_chain(conflict_fid, features))
        if new_related:
            all_related.update(new_related)
            changed = True
    return all_related

@router.get("/{name}/features/{feature_id}/dependencies", response_model=DependencyChainResponse)
async def get_feature_dependencies(name: str, feature_id: int, db: AsyncSession = Depends(get_db)):
    """Get dependency information for a feature."""
    # Verify project exists
    result = await db.execute(select(Project).where(Project.name == name))
    project = result.scalar_one_or_none()

    if not project:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Project '{name}' not found"
        )

    # Get all features for the project
    result = await db.execute(select(Feature).where(Feature.project_id == project.id))
    features = result.scalars().all()

    # Find the target feature
    target_feature = None
    for f in features:
        if f.id == feature_id:
            target_feature = f
            break

    if not target_feature:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Feature {feature_id} not found in project '{name}'"
        )

    # Get features that depend on this one
    depended_by = [f.id for f in features if feature_id in (f.depends_on or [])]

    # Get full dependency chain
    chain = get_dependency_chain(feature_id, features)

    return DependencyChainResponse(
        feature_id=feature_id,
        depends_on=target_feature.depends_on or [],
        depended_by=depended_by,
        chain=sorted(list(chain))
    )

@router.put("/{name}/features/{feature_id}/dependencies", response_model=FeatureResponse)
async def set_feature_dependencies(
    name: str,
    feature_id: int,
    request: SetDependenciesRequest,
    db: AsyncSession = Depends(get_db)
):
    """Set dependencies for a feature.

    If the feature or any of its dependencies are already assigned to an agent,
    all features in the dependency chain will be assigned to the same agent.
    """
    # Verify project exists
    result = await db.execute(select(Project).where(Project.name == name))
    project = result.scalar_one_or_none()

    if not project:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Project '{name}' not found"
        )

    # Get all features for the project
    result = await db.execute(select(Feature).where(Feature.project_id == project.id))
    features = list(result.scalars().all())
    feature_map = {f.id: f for f in features}

    # Find the target feature
    if feature_id not in feature_map:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Feature {feature_id} not found in project '{name}'"
        )

    target_feature = feature_map[feature_id]

    # Validate all dependency IDs exist in the same project
    for dep_id in request.depends_on:
        if dep_id not in feature_map:
            raise HTTPException(
                status_code=status.HTTP_400_BAD_REQUEST,
                detail=f"Dependency feature {dep_id} not found in project '{name}'"
            )
        if dep_id == feature_id:
            raise HTTPException(
                status_code=status.HTTP_400_BAD_REQUEST,
                detail="A feature cannot depend on itself"
            )

    # Detect circular dependencies - check if any new dependency would create a path back to target
    def has_circular_dependency(target_id: int, new_deps: List[int]) -> bool:
        """Check if adding new_deps to target_id creates a cycle.

        A cycle exists if any of the new dependencies eventually depend on target_id.
        For example: if we add dep 19 to feature 20, check if 19 depends on 20 (directly or indirectly).
        """
        def feature_depends_on(fid: int, check_id: int, visited: set) -> bool:
            """Check if feature fid depends (directly or indirectly) on check_id."""
            if fid == check_id:
                return True
            if fid in visited:
                return False
            visited.add(fid)

            feature = feature_map.get(fid)
            if not feature:
                return False

            deps = feature.depends_on or []
            for dep_id in deps:
                if feature_depends_on(dep_id, check_id, visited):
                    return True
            return False

        # Check: would any new dependency create a path back to target_id?
        for dep_id in new_deps:
            if feature_depends_on(dep_id, target_id, set()):
                return True
        return False

    if has_circular_dependency(feature_id, request.depends_on):
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail="Circular dependency detected"
        )

    # Update the dependencies
    target_feature.depends_on = request.depends_on
    target_feature.updated_at = datetime.utcnow()

    # Update the feature map for chain calculation
    features = [f if f.id != feature_id else target_feature for f in features]

    # Get the full dependency chain
    chain = get_dependency_chain(feature_id, features)

    # Check if any feature in the chain has an assigned agent
    assigned_agent = None
    for fid in chain:
        if feature_map[fid].assigned_agent:
            if assigned_agent is None:
                assigned_agent = feature_map[fid].assigned_agent
            elif assigned_agent != feature_map[fid].assigned_agent:
                # Conflict: different agents assigned to features in the same chain
                # Prioritize keeping all in the same chain
                pass

    # If any feature in the chain has an agent, assign all to that agent
    if assigned_agent:
        for fid in chain:
            if feature_map[fid].assigned_agent != assigned_agent:
                feature_map[fid].assigned_agent = assigned_agent
                feature_map[fid].updated_at = datetime.utcnow()

    await db.commit()
    await db.refresh(target_feature)

    return FeatureResponse.model_validate(target_feature)

@router.put("/{name}/features/{feature_id}/files-modified", response_model=FeatureResponse)
async def set_files_modified(
    name: str,
    feature_id: int,
    request: SetFilesModifiedRequest,
    db: AsyncSession = Depends(get_db)
):
    """Set the list of files modified by a feature."""
    result = await db.execute(select(Project).where(Project.name == name))
    project = result.scalar_one_or_none()
    if not project:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail=f"Project '{name}' not found")
    result = await db.execute(select(Feature).where(and_(Feature.id == feature_id, Feature.project_id == project.id)))
    feature = result.scalar_one_or_none()
    if not feature:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail=f"Feature {feature_id} not found")
    feature.files_modified = request.files_modified
    feature.updated_at = datetime.utcnow()
    await db.commit()
    await db.refresh(feature)
    return FeatureResponse.model_validate(feature)

@router.get("/{name}/features/{feature_id}/file-conflicts", response_model=FileConflictResponse)
async def get_file_conflicts(name: str, feature_id: int, db: AsyncSession = Depends(get_db)):
    """Get file conflict information for a feature."""
    result = await db.execute(select(Project).where(Project.name == name))
    project = result.scalar_one_or_none()
    if not project:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail=f"Project '{name}' not found")
    result = await db.execute(select(Feature).where(Feature.project_id == project.id))
    features = list(result.scalars().all())
    feature_map = {f.id: f for f in features}
    if feature_id not in feature_map:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail=f"Feature {feature_id} not found")
    target_feature = feature_map[feature_id]
    file_to_features = get_file_conflict_groups(features)
    conflicting_features = []
    seen_ids = {feature_id}
    for file_path in (target_feature.files_modified or []):
        if file_path in file_to_features:
            for fid in file_to_features[file_path]:
                if fid not in seen_ids:
                    seen_ids.add(fid)
                    f = feature_map[fid]
                    shared_files = [fp for fp in (f.files_modified or []) if fp in (target_feature.files_modified or [])]
                    conflicting_features.append({"feature_id": fid, "name": f.name, "files": shared_files, "assigned_agent": f.assigned_agent})
    conflict_groups = []
    for file_path, fids in file_to_features.items():
        if len(fids) > 1 and feature_id in fids:
            conflict_groups.append(sorted(list(fids)))
    return FileConflictResponse(feature_id=feature_id, files_modified=target_feature.files_modified or [], conflicting_features=conflicting_features, conflict_groups=conflict_groups)

@router.post("/{name}/features/{feature_id}/assign-agent", response_model=List[FeatureResponse])
async def assign_feature_to_agent(
    name: str,
    feature_id: int,
    agent_id: str = Query(..., regex="^[AB]$", description="Agent ID (A or B)"),
    db: AsyncSession = Depends(get_db)
):
    """Assign a feature and all its dependencies/file conflicts to an agent.

    This ensures that all features in the dependency chain AND file conflict
    chain are assigned to the same agent to prevent conflicts.
    """
    # Verify project exists
    result = await db.execute(select(Project).where(Project.name == name))
    project = result.scalar_one_or_none()

    if not project:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Project '{name}' not found"
        )

    # Get all features for the project
    result = await db.execute(select(Feature).where(Feature.project_id == project.id))
    features = list(result.scalars().all())
    feature_map = {f.id: f for f in features}

    # Find the target feature
    if feature_id not in feature_map:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail=f"Feature {feature_id} not found in project '{name}'"
        )

    # Get the full conflict chain (dependencies AND file conflicts)
    chain = get_full_conflict_chain(feature_id, features)

    # Check for conflicts with other agent
    other_agent = "B" if agent_id == "A" else "A"
    conflicting_features = [
        fid for fid in chain
        if feature_map[fid].assigned_agent == other_agent
    ]

    if conflicting_features:
        raise HTTPException(
            status_code=status.HTTP_409_CONFLICT,
            detail=f"Features {conflicting_features} in dependency/file conflict chain are assigned to Agent {other_agent}"
        )

    # Assign all features in the chain to the agent
    updated_features = []
    for fid in chain:
        feature = feature_map[fid]
        if feature.assigned_agent != agent_id:
            feature.assigned_agent = agent_id
            feature.updated_at = datetime.utcnow()
        updated_features.append(feature)

    await db.commit()

    # Refresh all updated features
    for feature in updated_features:
        await db.refresh(feature)

    return [FeatureResponse.model_validate(f) for f in updated_features]


Implement git commit coordination for dual agents

Create commit lock mechanism in backend

Add commit queue/serialization API endpoints

Test sequential commits with dual agents

Mark feature #80 as passing


Create commit lock mechanism in backend

Mark feature #80 as passing

Create commit lock mechanism in backend

Mark feature #80 as passing


Now I need to create a git commit coordination mechanism. This will involve:
1. A commit lock per project (only one agent can commit at a time)
2. Endpoints to acquire/release the commit lock
3. A queue system if an agent needs to wait

Let me create a new router for git coordination:


     1→"""
     2→API Routers
     3→===========
     4→
     5→FastAPI routers for Autocoder+ API endpoints.
     6→"""
     7→
     8→from .projects import router as projects_router
     9→from .websocket import router as websocket_router
    10→from .agents import router as agents_router
    11→from .features import router as features_router
    12→from .permissions import router as permissions_router
    13→from .spec import router as spec_router
    14→from .infrastructure import router as infrastructure_router
    15→
    16→__all__ = [
    17→    "projects_router",
    18→    "websocket_router",
    19→    "agents_router",
    20→    "features_router",
    21→    "permissions_router",
    22→    "spec_router",
    23→    "infrastructure_router",
    24→]
    25→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

"""
API Routers
===========

FastAPI routers for Autocoder+ API endpoints.
"""

from .projects import router as projects_router
from .websocket import router as websocket_router
from .agents import router as agents_router
from .features import router as features_router
from .permissions import router as permissions_router
from .spec import router as spec_router
from .infrastructure import router as infrastructure_router

__all__ = [
    "projects_router",
    "websocket_router",
    "agents_router",
    "features_router",
    "permissions_router",
    "spec_router",
    "infrastructure_router",
]