The file C:\Users\MikeSwanson\claude-projects\Autocode-remix\Autocode-fork\backend\app\routers\features.py has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   404→    collect_dependencies(feature_id)
   405→    visited = set()
   406→    collect_dependents(feature_id)
   407→
   408→    return chain
   409→
   410→
   411→def get_file_conflict_groups(features: List[Feature]) -> Dict[str, Set[int]]:
   412→    """Build a mapping of files to feature IDs that modify them."""
   413→    file_to_features: Dict[str, Set[int]] = {}
   414→    for feature in features:
   415→        for file_path in (feature.files_modified or []):
   416→            if file_path not in file_to_features:
   417→                file_to_features[file_path] = set()
   418→            file_to_features[file_path].add(feature.id)
   419→    return file_to_features
   420→
   421→
   422→def get_features_sharing_files(feature_id: int, features: List[Feature]) -> Set[int]:
   423→    """Get all feature IDs that share files with the given feature."""
   424→    feature_map = {f.id: f for f in features}
   425→    target_feature = feature_map.get(feature_id)
   426→    if not target_feature or not target_feature.files_modified:
   427→        return {feature_id}
   428→    file_to_features = get_file_conflict_groups(features)
   429→    related_features = set()
   430→    for file_path in target_feature.files_modified:
   431→        if file_path in file_to_features:
   432→            related_features.update(file_to_features[file_path])
   433→    return related_features
   434→
   435→
   436→def get_full_conflict_chain(feature_id: int, features: List[Feature]) -> Set[int]:
   437→    """Get all features that must be on the same agent due to dependencies OR file conflicts."""
   438→    dep_chain = get_dependency_chain(feature_id, features)
   439→    all_related = set(dep_chain)
   440→    changed = True
   441→    while changed:
   442→        changed = False
   443→        new_related = set()
   444→        for fid in all_related:
   445→            file_conflicts = get_features_sharing_files(fid, features)
   446→            for conflict_fid in file_conflicts:
   447→                if conflict_fid not in all_related:
   448→                    new_related.add(conflict_fid)
   449→                    new_related.update(get_dependency_chain(conflict_fid, features))
   450→        if new_related:
   451→            all_related.update(new_related)
   452→            changed = True
   453→    return all_related
   454→
   455→
   456→@router.get("/{name}/features/{feature_id}/dependencies", response_model=DependencyChainResponse)
   457→async def get_feature_dependencies(name: str, feature_id: int, db: AsyncSession = Depends(get_db)):
   458→    """Get dependency information for a feature."""
   459→    # Verify project exists
   460→    result = await db.execute(select(Project).where(Project.name == name))

    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)

"""
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/{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,
    )
    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

    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

@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.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 to an agent.

    This ensures that all features in the dependency 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 dependency chain
    chain = get_dependency_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 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]

+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 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)

+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:

+    file_to_features = get_file_conflict_groups(features)

+    for file_path in target_feature.files_modified:

+        if file_path in file_to_features:

+            related_features.update(file_to_features[file_path])

+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)

+            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))

+            all_related.update(new_related)


Now let me find and update the update_feature function to include files_modified handling.


   300→        raise HTTPException(
   301→            status_code=status.HTTP_404_NOT_FOUND,
   302→            detail=f"Feature {feature_id} not found in project '{name}'"
   303→        )
   304→
   305→    # Update allowed fields only (name, description, category, steps are immutable)
   306→    if feature_update.priority is not None:
   307→        feature.priority = feature_update.priority
   308→    if feature_update.passes is not None:
   309→        feature.passes = feature_update.passes
   310→    if feature_update.in_progress is not None:
   311→        feature.in_progress = feature_update.in_progress
   312→    if feature_update.stalled is not None:
   313→        feature.stalled = feature_update.stalled
   314→    if feature_update.stall_reason is not None:
   315→        feature.stall_reason = feature_update.stall_reason
   316→    if feature_update.assigned_agent is not None:
   317→        feature.assigned_agent = feature_update.assigned_agent
   318→    if feature_update.depends_on is not None:
   319→        feature.depends_on = feature_update.depends_on
   320→
   321→    feature.updated_at = datetime.utcnow()
   322→    await db.commit()
   323→    await db.refresh(feature)
   324→
   325→    return FeatureResponse.model_validate(feature)
   326→
   327→
   328→@router.post("/{name}/features/{feature_id}/unstall", response_model=FeatureResponse)
   329→async def unstall_feature(name: str, feature_id: int, db: AsyncSession = Depends(get_db)):
   330→    """Clear stalled status from a feature."""
   331→    # Verify project exists
   332→    result = await db.execute(select(Project).where(Project.name == name))
   333→    project = result.scalar_one_or_none()
   334→
   335→    if not project:
   336→        raise HTTPException(
   337→            status_code=status.HTTP_404_NOT_FOUND,
   338→            detail=f"Project '{name}' not found"
   339→        )
   340→
   341→    # Get feature
   342→    result = await db.execute(
   343→        select(Feature).where(and_(
   344→            Feature.id == feature_id,
   345→            Feature.project_id == project.id
   346→        ))
   347→    )
   348→    feature = result.scalar_one_or_none()
   349→
   350→    if not feature:
   351→        raise HTTPException(
   352→            status_code=status.HTTP_404_NOT_FOUND,
   353→            detail=f"Feature {feature_id} not found in project '{name}'"
   354→        )
   355→
   356→    feature.stalled = False
   357→    feature.stall_reason = None
   358→    feature.updated_at = datetime.utcnow()
   359→    await db.commit()

<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>

        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

    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()


Edit

    if feature_update.depends_on is not None:
        feature.depends_on = feature_update.depends_on

    feature.updated_at = datetime.utcnow()

    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()


The file C:\Users\MikeSwanson\claude-projects\Autocode-remix\Autocode-fork\backend\app\routers\features.py has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   314→    if feature_update.stall_reason is not None:
   315→        feature.stall_reason = feature_update.stall_reason
   316→    if feature_update.assigned_agent is not None:
   317→        feature.assigned_agent = feature_update.assigned_agent
   318→    if feature_update.depends_on is not None:
   319→        feature.depends_on = feature_update.depends_on
   320→    if feature_update.files_modified is not None:
   321→        feature.files_modified = feature_update.files_modified
   322→
   323→    feature.updated_at = datetime.utcnow()
   324→    await db.commit()
   325→    await db.refresh(feature)
   326→
   327→    return FeatureResponse.model_validate(feature)

    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()

"""
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/{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,
    )
    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

    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.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 to an agent.

    This ensures that all features in the dependency 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 dependency chain
    chain = get_dependency_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 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]

+    if feature_update.files_modified is not None:

+        feature.files_modified = feature_update.files_modified


Now let me find and update the create_feature function.


   245→
   246→
   247→@router.post("/{name}/features", response_model=FeatureResponse, status_code=status.HTTP_201_CREATED)
   248→async def create_feature(name: str, feature: FeatureCreate, db: AsyncSession = Depends(get_db)):
   249→    """Create a new feature for a project."""
   250→    # Verify project exists
   251→    result = await db.execute(select(Project).where(Project.name == name))
   252→    project = result.scalar_one_or_none()
   253→
   254→    if not project:
   255→        raise HTTPException(
   256→            status_code=status.HTTP_404_NOT_FOUND,
   257→            detail=f"Project '{name}' not found"
   258→        )
   259→
   260→    # Create feature
   261→    db_feature = Feature(
   262→        project_id=project.id,
   263→        priority=feature.priority,
   264→        category=feature.category,
   265→        name=feature.name,
   266→        description=feature.description,
   267→        steps=feature.steps,
   268→        depends_on=feature.depends_on,
   269→    )
   270→    db.add(db_feature)
   271→    await db.commit()
   272→    await db.refresh(db_feature)
   273→
   274→    return FeatureResponse.model_validate(db_feature)
   275→
   276→
   277→@router.put("/{name}/features/{feature_id}", response_model=FeatureResponse)
   278→async def update_feature(name: str, feature_id: int, feature_update: FeatureUpdate, db: AsyncSession = Depends(get_db)):
   279→    """Update a feature (limited fields)."""

<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>

@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,
    )
    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)."""


    # 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,
    )

    # 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,
    )


The file C:\Users\MikeSwanson\claude-projects\Autocode-remix\Autocode-fork\backend\app\routers\features.py has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
   256→            status_code=status.HTTP_404_NOT_FOUND,
   257→            detail=f"Project '{name}' not found"
   258→        )
   259→
   260→    # Create feature
   261→    db_feature = Feature(
   262→        project_id=project.id,
   263→        priority=feature.priority,
   264→        category=feature.category,
   265→        name=feature.name,
   266→        description=feature.description,
   267→        steps=feature.steps,
   268→        depends_on=feature.depends_on,
   269→        files_modified=feature.files_modified,
   270→    )
   271→    db.add(db_feature)
   272→    await db.commit()
   273→    await db.refresh(db_feature)
   274→

    # 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,
    )

"""
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/{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,
    )
    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.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 to an agent.

    This ensures that all features in the dependency 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 dependency chain
    chain = get_dependency_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 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]

+        files_modified=feature.files_modified,


Now I need to find the assign_feature_to_agent function and add the new endpoints before it. Let me read the end of the file.


   600→    assigned_agent = None
   601→    for fid in chain:
   602→        if feature_map[fid].assigned_agent:
   603→            if assigned_agent is None:
   604→                assigned_agent = feature_map[fid].assigned_agent
   605→            elif assigned_agent != feature_map[fid].assigned_agent:
   606→                # Conflict: different agents assigned to features in the same chain
   607→                # Prioritize keeping all in the same chain
   608→                pass
   609→
   610→    # If any feature in the chain has an agent, assign all to that agent
   611→    if assigned_agent:
   612→        for fid in chain:
   613→            if feature_map[fid].assigned_agent != assigned_agent:
   614→                feature_map[fid].assigned_agent = assigned_agent
   615→                feature_map[fid].updated_at = datetime.utcnow()
   616→
   617→    await db.commit()
   618→    await db.refresh(target_feature)
   619→
   620→    return FeatureResponse.model_validate(target_feature)
   621→
   622→
   623→@router.post("/{name}/features/{feature_id}/assign-agent", response_model=List[FeatureResponse])
   624→async def assign_feature_to_agent(
   625→    name: str,
   626→    feature_id: int,
   627→    agent_id: str = Query(..., regex="^[AB]$", description="Agent ID (A or B)"),
   628→    db: AsyncSession = Depends(get_db)
   629→):
   630→    """Assign a feature and all its dependencies to an agent.
   631→
   632→    This ensures that all features in the dependency chain are assigned
   633→    to the same agent to prevent conflicts.
   634→    """
   635→    # Verify project exists
   636→    result = await db.execute(select(Project).where(Project.name == name))
   637→    project = result.scalar_one_or_none()
   638→
   639→    if not project:
   640→        raise HTTPException(
   641→            status_code=status.HTTP_404_NOT_FOUND,
   642→            detail=f"Project '{name}' not found"
   643→        )
   644→
   645→    # Get all features for the project
   646→    result = await db.execute(select(Feature).where(Feature.project_id == project.id))
   647→    features = list(result.scalars().all())
   648→    feature_map = {f.id: f for f in features}
   649→
   650→    # Find the target feature
   651→    if feature_id not in feature_map:
   652→        raise HTTPException(
   653→            status_code=status.HTTP_404_NOT_FOUND,
   654→            detail=f"Feature {feature_id} not found in project '{name}'"
   655→        )
   656→
   657→    # Get the full dependency chain
   658→    chain = get_dependency_chain(feature_id, features)
   659→
   660→    # Check for conflicts with other agent
   661→    other_agent = "B" if agent_id == "A" else "A"
   662→    conflicting_features = [
   663→        fid for fid in chain
   664→        if feature_map[fid].assigned_agent == other_agent
   665→    ]
   666→
   667→    if conflicting_features:
   668→        raise HTTPException(
   669→            status_code=status.HTTP_409_CONFLICT,
   670→            detail=f"Features {conflicting_features} in dependency chain are assigned to Agent {other_agent}"
   671→        )
   672→
   673→    # Assign all features in the chain to the agent
   674→    updated_features = []
   675→    for fid in chain:
   676→        feature = feature_map[fid]
   677→        if feature.assigned_agent != agent_id:
   678→            feature.assigned_agent = agent_id
   679→            feature.updated_at = datetime.utcnow()
   680→        updated_features.append(feature)
   681→
   682→    await db.commit()
   683→
   684→    # Refresh all updated features
   685→    for feature in updated_features:
   686→        await db.refresh(feature)
   687→
   688→    return [FeatureResponse.model_validate(f) for f in updated_features]
   689→

<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>

    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.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 to an agent.

    This ensures that all features in the dependency 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 dependency chain
    chain = get_dependency_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 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]


Now I'll add the new endpoints before assign_feature_to_agent and update the function to use get_full_conflict_chain.


    return FeatureResponse.model_validate(target_feature)

@router.post("/{name}/features/{feature_id}/assign-agent", response_model=List[FeatureResponse])
async def assign_feature_to_agent(

    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.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.post("/{name}/features/{feature_id}/assign-agent", response_model=List[FeatureResponse])
async def assign_feature_to_agent(