Merge pull request #75 from ipodishima/feature/agent-scheduling

feat: add time-based agent scheduling with APScheduler

api/database.py

@@ -6,12 +6,13 @@ SQLite database schema for feature storage using SQLAlchemy.
 """
 
 import sys
+from datetime import datetime
 from pathlib import Path
 from typing import Optional
 
-from sqlalchemy import Boolean, Column, Integer, String, Text, create_engine, text
+from sqlalchemy import Boolean, Column, DateTime, ForeignKey, Integer, String, Text, create_engine, text
 from sqlalchemy.ext.declarative import declarative_base
-from sqlalchemy.orm import Session, sessionmaker
+from sqlalchemy.orm import Session, relationship, sessionmaker
 from sqlalchemy.types import JSON
 
 Base = declarative_base()
@@ -59,6 +60,93 @@ class Feature(Base):
         return []
 
 
+class Schedule(Base):
+    """Time-based schedule for automated agent start/stop."""
+
+    __tablename__ = "schedules"
+
+    id = Column(Integer, primary_key=True, index=True)
+    project_name = Column(String(50), nullable=False, index=True)
+
+    # Timing (stored in UTC)
+    start_time = Column(String(5), nullable=False)  # "HH:MM" format
+    duration_minutes = Column(Integer, nullable=False)  # 1-1440
+
+    # Day filtering (bitfield: Mon=1, Tue=2, Wed=4, Thu=8, Fri=16, Sat=32, Sun=64)
+    days_of_week = Column(Integer, nullable=False, default=127)  # 127 = all days
+
+    # State
+    enabled = Column(Boolean, nullable=False, default=True, index=True)
+
+    # Agent configuration for scheduled runs
+    yolo_mode = Column(Boolean, nullable=False, default=False)
+    model = Column(String(50), nullable=True)  # None = use global default
+    max_concurrency = Column(Integer, nullable=False, default=3)  # 1-5 concurrent agents
+
+    # Crash recovery tracking
+    crash_count = Column(Integer, nullable=False, default=0)  # Resets at window start
+
+    # Metadata
+    created_at = Column(DateTime, nullable=False, default=datetime.utcnow)
+
+    # Relationships
+    overrides = relationship(
+        "ScheduleOverride", back_populates="schedule", cascade="all, delete-orphan"
+    )
+
+    def to_dict(self) -> dict:
+        """Convert schedule to dictionary for JSON serialization."""
+        return {
+            "id": self.id,
+            "project_name": self.project_name,
+            "start_time": self.start_time,
+            "duration_minutes": self.duration_minutes,
+            "days_of_week": self.days_of_week,
+            "enabled": self.enabled,
+            "yolo_mode": self.yolo_mode,
+            "model": self.model,
+            "max_concurrency": self.max_concurrency,
+            "crash_count": self.crash_count,
+            "created_at": self.created_at.isoformat() if self.created_at else None,
+        }
+
+    def is_active_on_day(self, weekday: int) -> bool:
+        """Check if schedule is active on given weekday (0=Monday, 6=Sunday)."""
+        day_bit = 1 << weekday
+        return bool(self.days_of_week & day_bit)
+
+
+class ScheduleOverride(Base):
+    """Persisted manual override for a schedule window."""
+
+    __tablename__ = "schedule_overrides"
+
+    id = Column(Integer, primary_key=True, index=True)
+    schedule_id = Column(
+        Integer, ForeignKey("schedules.id", ondelete="CASCADE"), nullable=False
+    )
+
+    # Override details
+    override_type = Column(String(10), nullable=False)  # "start" or "stop"
+    expires_at = Column(DateTime, nullable=False)  # When this window ends (UTC)
+
+    # Metadata
+    created_at = Column(DateTime, nullable=False, default=datetime.utcnow)
+
+    # Relationships
+    schedule = relationship("Schedule", back_populates="overrides")
+
+    def to_dict(self) -> dict:
+        """Convert override to dictionary for JSON serialization."""
+        return {
+            "id": self.id,
+            "schedule_id": self.schedule_id,
+            "override_type": self.override_type,
+            "expires_at": self.expires_at.isoformat() if self.expires_at else None,
+            "created_at": self.created_at.isoformat() if self.created_at else None,
+        }
+
+
 def get_database_path(project_dir: Path) -> Path:
     """Return the path to the SQLite database for a project."""
     return project_dir / "features.db"
@@ -164,6 +252,40 @@ def _is_network_path(path: Path) -> bool:
     return False
 
 
+def _migrate_add_schedules_tables(engine) -> None:
+    """Create schedules and schedule_overrides tables if they don't exist."""
+    from sqlalchemy import inspect
+
+    inspector = inspect(engine)
+    existing_tables = inspector.get_table_names()
+
+    # Create schedules table if missing
+    if "schedules" not in existing_tables:
+        Schedule.__table__.create(bind=engine)
+
+    # Create schedule_overrides table if missing
+    if "schedule_overrides" not in existing_tables:
+        ScheduleOverride.__table__.create(bind=engine)
+
+    # Add crash_count column if missing (for upgrades)
+    if "schedules" in existing_tables:
+        columns = [c["name"] for c in inspector.get_columns("schedules")]
+        if "crash_count" not in columns:
+            with engine.connect() as conn:
+                conn.execute(
+                    text("ALTER TABLE schedules ADD COLUMN crash_count INTEGER DEFAULT 0")
+                )
+                conn.commit()
+
+        # Add max_concurrency column if missing (for upgrades)
+        if "max_concurrency" not in columns:
+            with engine.connect() as conn:
+                conn.execute(
+                    text("ALTER TABLE schedules ADD COLUMN max_concurrency INTEGER DEFAULT 3")
+                )
+                conn.commit()
+
+
 def create_database(project_dir: Path) -> tuple:
     """
     Create database and return engine + session maker.
@@ -196,6 +318,9 @@ def create_database(project_dir: Path) -> tuple:
     _migrate_fix_null_boolean_fields(engine)
     _migrate_add_dependencies_column(engine)
 
+    # Migrate to add schedules tables
+    _migrate_add_schedules_tables(engine)
+
     SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
     return engine, SessionLocal
 

requirements.txt

@@ -7,6 +7,7 @@ websockets>=13.0
 python-multipart>=0.0.17
 psutil>=6.0.0
 aiofiles>=24.0.0
+apscheduler>=3.10.0,<4.0.0
 pywinpty>=2.0.0; sys_platform == "win32"
 
 # Dev dependencies

server/main.py

@@ -35,6 +35,7 @@ from .routers import (
     features_router,
     filesystem_router,
     projects_router,
+    schedules_router,
     settings_router,
     spec_creation_router,
     terminal_router,
@@ -47,6 +48,7 @@ from .services.dev_server_manager import (
 )
 from .services.expand_chat_session import cleanup_all_expand_sessions
 from .services.process_manager import cleanup_all_managers, cleanup_orphaned_locks
+from .services.scheduler_service import cleanup_scheduler, get_scheduler
 from .services.terminal_manager import cleanup_all_terminals
 from .websocket import project_websocket
 
@@ -61,8 +63,16 @@ async def lifespan(app: FastAPI):
     # Startup - clean up orphaned lock files from previous runs
     cleanup_orphaned_locks()
     cleanup_orphaned_devserver_locks()
+
+    # Start the scheduler service
+    scheduler = get_scheduler()
+    await scheduler.start()
+
     yield
-    # Shutdown - cleanup all running agents, sessions, terminals, and dev servers
+
+    # Shutdown - cleanup scheduler first to stop triggering new starts
+    await cleanup_scheduler()
+    # Then cleanup all running agents, sessions, terminals, and dev servers
     await cleanup_all_managers()
     await cleanup_assistant_sessions()
     await cleanup_all_expand_sessions()
@@ -116,6 +126,7 @@ async def require_localhost(request: Request, call_next):
 app.include_router(projects_router)
 app.include_router(features_router)
 app.include_router(agent_router)
+app.include_router(schedules_router)
 app.include_router(devserver_router)
 app.include_router(spec_creation_router)
 app.include_router(expand_project_router)

server/routers/__init__.py

@@ -12,6 +12,7 @@ from .expand_project import router as expand_project_router
 from .features import router as features_router
 from .filesystem import router as filesystem_router
 from .projects import router as projects_router
+from .schedules import router as schedules_router
 from .settings import router as settings_router
 from .spec_creation import router as spec_creation_router
 from .terminal import router as terminal_router
@@ -20,6 +21,7 @@ __all__ = [
     "projects_router",
     "features_router",
     "agent_router",
+    "schedules_router",
     "devserver_router",
     "spec_creation_router",
     "expand_project_router",

server/routers/agent.py

@@ -130,6 +130,13 @@ async def start_agent(
         count_testing_in_concurrency=count_testing,
     )
 
+    # Notify scheduler of manual start (to prevent auto-stop during scheduled window)
+    if success:
+        from ..services.scheduler_service import get_scheduler
+        project_dir = _get_project_path(project_name)
+        if project_dir:
+            get_scheduler().notify_manual_start(project_name, project_dir)
+
     return AgentActionResponse(
         success=success,
         status=manager.status,
@@ -144,6 +151,13 @@ async def stop_agent(project_name: str):
 
     success, message = await manager.stop()
 
+    # Notify scheduler of manual stop (to prevent auto-start during scheduled window)
+    if success:
+        from ..services.scheduler_service import get_scheduler
+        project_dir = _get_project_path(project_name)
+        if project_dir:
+            get_scheduler().notify_manual_stop(project_name, project_dir)
+
     return AgentActionResponse(
         success=success,
         status=manager.status,

server/routers/schedules.py

@@ -0,0 +1,409 @@
+"""
+Schedules Router
+================
+
+API endpoints for managing agent schedules.
+Provides CRUD operations for time-based schedule configuration.
+"""
+
+import re
+import sys
+from datetime import datetime, timedelta, timezone
+from pathlib import Path
+
+from fastapi import APIRouter, HTTPException
+
+from ..schemas import (
+    NextRunResponse,
+    ScheduleCreate,
+    ScheduleListResponse,
+    ScheduleResponse,
+    ScheduleUpdate,
+)
+
+
+def _get_project_path(project_name: str) -> Path:
+    """Get project path from registry."""
+    root = Path(__file__).parent.parent.parent
+    if str(root) not in sys.path:
+        sys.path.insert(0, str(root))
+
+    from registry import get_project_path
+    return get_project_path(project_name)
+
+
+router = APIRouter(
+    prefix="/api/projects/{project_name}/schedules",
+    tags=["schedules"]
+)
+
+
+def validate_project_name(name: str) -> str:
+    """Validate and sanitize project name to prevent path traversal."""
+    if not re.match(r'^[a-zA-Z0-9_-]{1,50}$', name):
+        raise HTTPException(
+            status_code=400,
+            detail="Invalid project name"
+        )
+    return name
+
+
+def _get_db_session(project_name: str):
+    """Get database session for a project."""
+    from api.database import create_database
+
+    project_name = validate_project_name(project_name)
+    project_path = _get_project_path(project_name)
+
+    if not project_path:
+        raise HTTPException(
+            status_code=404,
+            detail=f"Project '{project_name}' not found in registry"
+        )
+
+    if not project_path.exists():
+        raise HTTPException(
+            status_code=404,
+            detail=f"Project directory not found: {project_path}"
+        )
+
+    _, SessionLocal = create_database(project_path)
+    return SessionLocal(), project_path
+
+
+@router.get("", response_model=ScheduleListResponse)
+async def list_schedules(project_name: str):
+    """Get all schedules for a project."""
+    from api.database import Schedule
+
+    db, _ = _get_db_session(project_name)
+
+    try:
+        schedules = db.query(Schedule).filter(
+            Schedule.project_name == project_name
+        ).order_by(Schedule.start_time).all()
+
+        return ScheduleListResponse(
+            schedules=[
+                ScheduleResponse(
+                    id=s.id,
+                    project_name=s.project_name,
+                    start_time=s.start_time,
+                    duration_minutes=s.duration_minutes,
+                    days_of_week=s.days_of_week,
+                    enabled=s.enabled,
+                    yolo_mode=s.yolo_mode,
+                    model=s.model,
+                    crash_count=s.crash_count,
+                    created_at=s.created_at,
+                )
+                for s in schedules
+            ]
+        )
+    finally:
+        db.close()
+
+
+@router.post("", response_model=ScheduleResponse, status_code=201)
+async def create_schedule(project_name: str, data: ScheduleCreate):
+    """Create a new schedule for a project."""
+    from api.database import Schedule
+
+    from ..services.scheduler_service import get_scheduler
+
+    db, project_path = _get_db_session(project_name)
+
+    try:
+        # Create schedule record
+        schedule = Schedule(
+            project_name=project_name,
+            start_time=data.start_time,
+            duration_minutes=data.duration_minutes,
+            days_of_week=data.days_of_week,
+            enabled=data.enabled,
+            yolo_mode=data.yolo_mode,
+            model=data.model,
+        )
+        db.add(schedule)
+        db.commit()
+        db.refresh(schedule)
+
+        # Register with APScheduler if enabled
+        if schedule.enabled:
+            import logging
+            logger = logging.getLogger(__name__)
+
+            scheduler = get_scheduler()
+            await scheduler.add_schedule(project_name, schedule, project_path)
+            logger.info(f"Registered schedule {schedule.id} with APScheduler")
+
+            # Check if we're currently within this schedule's window
+            # If so, start the agent immediately (cron won't trigger until next occurrence)
+            now = datetime.now(timezone.utc)
+            is_within = scheduler._is_within_window(schedule, now)
+            logger.info(f"Schedule {schedule.id}: is_within_window={is_within}, now={now}, start={schedule.start_time}")
+
+            if is_within:
+                # Check for manual stop override
+                from api.database import ScheduleOverride
+                override = db.query(ScheduleOverride).filter(
+                    ScheduleOverride.schedule_id == schedule.id,
+                    ScheduleOverride.override_type == "stop",
+                    ScheduleOverride.expires_at > now,
+                ).first()
+
+                logger.info(f"Schedule {schedule.id}: has_override={override is not None}")
+
+                if not override:
+                    # Start agent immediately
+                    logger.info(
+                        f"Schedule {schedule.id} is within active window, starting agent immediately"
+                    )
+                    try:
+                        await scheduler._start_agent(project_name, project_path, schedule)
+                        logger.info(f"Successfully started agent for schedule {schedule.id}")
+                    except Exception as e:
+                        logger.error(f"Failed to start agent for schedule {schedule.id}: {e}", exc_info=True)
+
+        return ScheduleResponse(
+            id=schedule.id,
+            project_name=schedule.project_name,
+            start_time=schedule.start_time,
+            duration_minutes=schedule.duration_minutes,
+            days_of_week=schedule.days_of_week,
+            enabled=schedule.enabled,
+            yolo_mode=schedule.yolo_mode,
+            model=schedule.model,
+            crash_count=schedule.crash_count,
+            created_at=schedule.created_at,
+        )
+
+    finally:
+        db.close()
+
+
+@router.get("/next", response_model=NextRunResponse)
+async def get_next_scheduled_run(project_name: str):
+    """Calculate next scheduled run across all enabled schedules."""
+    from api.database import Schedule, ScheduleOverride
+
+    from ..services.scheduler_service import get_scheduler
+
+    db, _ = _get_db_session(project_name)
+
+    try:
+        schedules = db.query(Schedule).filter(
+            Schedule.project_name == project_name,
+            Schedule.enabled == True,  # noqa: E712
+        ).all()
+
+        if not schedules:
+            return NextRunResponse(
+                has_schedules=False,
+                next_start=None,
+                next_end=None,
+                is_currently_running=False,
+                active_schedule_count=0,
+            )
+
+        now = datetime.now(timezone.utc)
+        scheduler = get_scheduler()
+
+        # Find active schedules and calculate next run
+        active_count = 0
+        next_start = None
+        latest_end = None
+
+        for schedule in schedules:
+            if scheduler._is_within_window(schedule, now):
+                # Check for manual stop override
+                override = db.query(ScheduleOverride).filter(
+                    ScheduleOverride.schedule_id == schedule.id,
+                    ScheduleOverride.override_type == "stop",
+                    ScheduleOverride.expires_at > now,
+                ).first()
+
+                if not override:
+                    # Schedule is active and not manually stopped
+                    active_count += 1
+                    # Calculate end time for this window
+                    end_time = _calculate_window_end(schedule, now)
+                    if latest_end is None or end_time > latest_end:
+                        latest_end = end_time
+                # If override exists, treat schedule as not active
+            else:
+                # Calculate next start time
+                next_schedule_start = _calculate_next_start(schedule, now)
+                if next_schedule_start and (next_start is None or next_schedule_start < next_start):
+                    next_start = next_schedule_start
+
+        return NextRunResponse(
+            has_schedules=True,
+            next_start=next_start if active_count == 0 else None,
+            next_end=latest_end,
+            is_currently_running=active_count > 0,
+            active_schedule_count=active_count,
+        )
+
+    finally:
+        db.close()
+
+
+@router.get("/{schedule_id}", response_model=ScheduleResponse)
+async def get_schedule(project_name: str, schedule_id: int):
+    """Get a single schedule by ID."""
+    from api.database import Schedule
+
+    db, _ = _get_db_session(project_name)
+
+    try:
+        schedule = db.query(Schedule).filter(
+            Schedule.id == schedule_id,
+            Schedule.project_name == project_name,
+        ).first()
+
+        if not schedule:
+            raise HTTPException(status_code=404, detail="Schedule not found")
+
+        return ScheduleResponse(
+            id=schedule.id,
+            project_name=schedule.project_name,
+            start_time=schedule.start_time,
+            duration_minutes=schedule.duration_minutes,
+            days_of_week=schedule.days_of_week,
+            enabled=schedule.enabled,
+            yolo_mode=schedule.yolo_mode,
+            model=schedule.model,
+            crash_count=schedule.crash_count,
+            created_at=schedule.created_at,
+        )
+
+    finally:
+        db.close()
+
+
+@router.patch("/{schedule_id}", response_model=ScheduleResponse)
+async def update_schedule(
+    project_name: str,
+    schedule_id: int,
+    data: ScheduleUpdate
+):
+    """Update an existing schedule."""
+    from api.database import Schedule
+
+    from ..services.scheduler_service import get_scheduler
+
+    db, project_path = _get_db_session(project_name)
+
+    try:
+        schedule = db.query(Schedule).filter(
+            Schedule.id == schedule_id,
+            Schedule.project_name == project_name,
+        ).first()
+
+        if not schedule:
+            raise HTTPException(status_code=404, detail="Schedule not found")
+
+        was_enabled = schedule.enabled
+
+        # Update only fields that were explicitly provided
+        # This allows sending {"model": null} to clear it vs omitting the field entirely
+        update_data = data.model_dump(exclude_unset=True)
+        for field, value in update_data.items():
+            setattr(schedule, field, value)
+
+        db.commit()
+        db.refresh(schedule)
+
+        # Update APScheduler jobs
+        scheduler = get_scheduler()
+        if schedule.enabled:
+            # Re-register with updated times
+            await scheduler.add_schedule(project_name, schedule, project_path)
+        elif was_enabled:
+            # Was enabled, now disabled - remove jobs
+            scheduler.remove_schedule(schedule_id)
+
+        return ScheduleResponse(
+            id=schedule.id,
+            project_name=schedule.project_name,
+            start_time=schedule.start_time,
+            duration_minutes=schedule.duration_minutes,
+            days_of_week=schedule.days_of_week,
+            enabled=schedule.enabled,
+            yolo_mode=schedule.yolo_mode,
+            model=schedule.model,
+            crash_count=schedule.crash_count,
+            created_at=schedule.created_at,
+        )
+
+    finally:
+        db.close()
+
+
+@router.delete("/{schedule_id}", status_code=204)
+async def delete_schedule(project_name: str, schedule_id: int):
+    """Delete a schedule."""
+    from api.database import Schedule
+
+    from ..services.scheduler_service import get_scheduler
+
+    db, _ = _get_db_session(project_name)
+
+    try:
+        schedule = db.query(Schedule).filter(
+            Schedule.id == schedule_id,
+            Schedule.project_name == project_name,
+        ).first()
+
+        if not schedule:
+            raise HTTPException(status_code=404, detail="Schedule not found")
+
+        # Remove APScheduler jobs
+        scheduler = get_scheduler()
+        scheduler.remove_schedule(schedule_id)
+
+        # Delete from database
+        db.delete(schedule)
+        db.commit()
+
+    finally:
+        db.close()
+
+
+def _calculate_window_end(schedule, now: datetime) -> datetime:
+    """Calculate when the current window ends."""
+    start_hour, start_minute = map(int, schedule.start_time.split(":"))
+
+    # Create start time for today in UTC
+    window_start = now.replace(
+        hour=start_hour, minute=start_minute, second=0, microsecond=0
+    )
+
+    # If current time is before start time, the window started yesterday
+    if now < window_start:
+        window_start = window_start - timedelta(days=1)
+
+    return window_start + timedelta(minutes=schedule.duration_minutes)
+
+
+def _calculate_next_start(schedule, now: datetime) -> datetime | None:
+    """Calculate the next start time for a schedule."""
+    start_hour, start_minute = map(int, schedule.start_time.split(":"))
+
+    # Create start time for today
+    candidate = now.replace(
+        hour=start_hour, minute=start_minute, second=0, microsecond=0
+    )
+
+    # If already past today's start time, check tomorrow
+    if candidate <= now:
+        candidate = candidate + timedelta(days=1)
+
+    # Find the next active day
+    for _ in range(7):
+        if schedule.is_active_on_day(candidate.weekday()):
+            return candidate
+        candidate = candidate + timedelta(days=1)
+
+    return None

server/schemas.py

@@ -472,3 +472,100 @@ class WSDevServerStatusMessage(BaseModel):
     type: Literal["dev_server_status"] = "dev_server_status"
     status: Literal["stopped", "running", "crashed"]
     url: str | None = None
+
+
+# ============================================================================
+# Schedule Schemas
+# ============================================================================
+
+
+class ScheduleCreate(BaseModel):
+    """Request schema for creating a schedule."""
+    start_time: str = Field(
+        ...,
+        pattern=r'^([0-1][0-9]|2[0-3]):[0-5][0-9]$',
+        description="Start time in HH:MM format (local time, will be stored as UTC)"
+    )
+    duration_minutes: int = Field(
+        ...,
+        ge=1,
+        le=1440,
+        description="Duration in minutes (1-1440)"
+    )
+    days_of_week: int = Field(
+        default=127,
+        ge=0,
+        le=127,
+        description="Bitfield: Mon=1, Tue=2, Wed=4, Thu=8, Fri=16, Sat=32, Sun=64"
+    )
+    enabled: bool = True
+    yolo_mode: bool = False
+    model: str | None = None
+    max_concurrency: int = Field(
+        default=3,
+        ge=1,
+        le=5,
+        description="Max concurrent agents (1-5)"
+    )
+
+    @field_validator('model')
+    @classmethod
+    def validate_model(cls, v: str | None) -> str | None:
+        """Validate model is in the allowed list."""
+        if v is not None and v not in VALID_MODELS:
+            raise ValueError(f"Invalid model. Must be one of: {VALID_MODELS}")
+        return v
+
+
+class ScheduleUpdate(BaseModel):
+    """Request schema for updating a schedule (partial updates allowed)."""
+    start_time: str | None = Field(
+        None,
+        pattern=r'^([0-1][0-9]|2[0-3]):[0-5][0-9]$'
+    )
+    duration_minutes: int | None = Field(None, ge=1, le=1440)
+    days_of_week: int | None = Field(None, ge=0, le=127)
+    enabled: bool | None = None
+    yolo_mode: bool | None = None
+    model: str | None = None
+    max_concurrency: int | None = Field(None, ge=1, le=5)
+
+    @field_validator('model')
+    @classmethod
+    def validate_model(cls, v: str | None) -> str | None:
+        """Validate model is in the allowed list."""
+        if v is not None and v not in VALID_MODELS:
+            raise ValueError(f"Invalid model. Must be one of: {VALID_MODELS}")
+        return v
+
+
+class ScheduleResponse(BaseModel):
+    """Response schema for a schedule."""
+    id: int
+    project_name: str
+    start_time: str  # UTC, frontend converts to local
+    duration_minutes: int
+    days_of_week: int
+    enabled: bool
+    yolo_mode: bool
+    model: str | None
+    max_concurrency: int
+    crash_count: int
+    created_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class ScheduleListResponse(BaseModel):
+    """Response containing list of schedules."""
+    schedules: list[ScheduleResponse]
+
+
+class NextRunResponse(BaseModel):
+    """Response for next scheduled run calculation."""
+    has_schedules: bool
+    next_start: datetime | None  # UTC
+    next_end: datetime | None  # UTC (latest end if overlapping)
+    is_currently_running: bool
+    active_schedule_count: int

server/services/scheduler_service.py

@@ -0,0 +1,665 @@
+"""
+Agent Scheduler Service
+=======================
+
+APScheduler-based service for automated agent scheduling.
+Manages time-based start/stop of agents with crash recovery and manual override tracking.
+"""
+
+import asyncio
+import logging
+import sys
+from datetime import datetime, timedelta, timezone
+from pathlib import Path
+from typing import Optional
+
+from apscheduler.schedulers.asyncio import AsyncIOScheduler
+from apscheduler.triggers.cron import CronTrigger
+
+# Add parent directory for imports
+sys.path.insert(0, str(Path(__file__).parent.parent.parent))
+
+logger = logging.getLogger(__name__)
+
+# Constants
+MAX_CRASH_RETRIES = 3
+CRASH_BACKOFF_BASE = 10  # seconds
+
+
+class SchedulerService:
+    """
+    APScheduler-based service for automated agent scheduling.
+
+    Creates two jobs per schedule:
+    1. Start job - triggers at start_time on configured days
+    2. Stop job - triggers at start_time + duration on configured days
+
+    Handles:
+    - Manual override tracking (persisted to DB)
+    - Crash recovery with exponential backoff
+    - Overlapping schedules (latest stop wins)
+    - Server restart recovery
+    """
+
+    def __init__(self):
+        from datetime import timezone as dt_timezone
+
+        # CRITICAL: Use UTC timezone since all schedule times are stored in UTC
+        self.scheduler = AsyncIOScheduler(timezone=dt_timezone.utc)
+        self._started = False
+
+    async def start(self):
+        """Start the scheduler and load all existing schedules."""
+        if self._started:
+            return
+
+        self.scheduler.start()
+        self._started = True
+        logger.info("Scheduler service started")
+
+        # Check for active schedule windows on startup
+        await self._check_missed_windows_on_startup()
+
+        # Load all schedules from registered projects
+        await self._load_all_schedules()
+
+    async def stop(self):
+        """Shutdown the scheduler gracefully."""
+        if not self._started:
+            return
+
+        self.scheduler.shutdown(wait=False)
+        self._started = False
+        logger.info("Scheduler service stopped")
+
+    async def _load_all_schedules(self):
+        """Load schedules for all registered projects."""
+        from registry import list_registered_projects
+
+        try:
+            projects = list_registered_projects()
+            total_loaded = 0
+            for project_name, info in projects.items():
+                project_path = Path(info.get("path", ""))
+                if project_path.exists():
+                    count = await self._load_project_schedules(project_name, project_path)
+                    total_loaded += count
+            if total_loaded > 0:
+                logger.info(f"Loaded {total_loaded} schedule(s) across all projects")
+        except Exception as e:
+            logger.error(f"Error loading schedules: {e}")
+
+    async def _load_project_schedules(self, project_name: str, project_dir: Path) -> int:
+        """Load schedules for a single project. Returns count of schedules loaded."""
+        from api.database import Schedule, create_database
+
+        db_path = project_dir / "features.db"
+        if not db_path.exists():
+            return 0
+
+        try:
+            _, SessionLocal = create_database(project_dir)
+            db = SessionLocal()
+            try:
+                schedules = db.query(Schedule).filter(
+                    Schedule.project_name == project_name,
+                    Schedule.enabled == True,  # noqa: E712
+                ).all()
+
+                for schedule in schedules:
+                    await self.add_schedule(project_name, schedule, project_dir)
+
+                if schedules:
+                    logger.info(f"Loaded {len(schedules)} schedule(s) for project '{project_name}'")
+                return len(schedules)
+            finally:
+                db.close()
+        except Exception as e:
+            logger.error(f"Error loading schedules for {project_name}: {e}")
+            return 0
+
+    async def add_schedule(self, project_name: str, schedule, project_dir: Path):
+        """Create APScheduler jobs for a schedule."""
+        try:
+            # Convert days bitfield to cron day_of_week string
+            days = self._bitfield_to_cron_days(schedule.days_of_week)
+
+            # Parse start time
+            hour, minute = map(int, schedule.start_time.split(":"))
+
+            # Calculate end time
+            start_dt = datetime.strptime(schedule.start_time, "%H:%M")
+            end_dt = start_dt + timedelta(minutes=schedule.duration_minutes)
+
+            # Detect midnight crossing
+            crosses_midnight = end_dt.date() != start_dt.date()
+
+            # Handle midnight wraparound for end time
+            end_hour = end_dt.hour
+            end_minute = end_dt.minute
+
+            # Start job - CRITICAL: timezone=timezone.utc is required for correct UTC scheduling
+            start_job_id = f"schedule_{schedule.id}_start"
+            start_trigger = CronTrigger(hour=hour, minute=minute, day_of_week=days, timezone=timezone.utc)
+            self.scheduler.add_job(
+                self._handle_scheduled_start,
+                start_trigger,
+                id=start_job_id,
+                args=[project_name, schedule.id, str(project_dir)],
+                replace_existing=True,
+                misfire_grace_time=300,  # 5 minutes grace period
+            )
+
+            # Stop job - CRITICAL: timezone=timezone.utc is required for correct UTC scheduling
+            # If schedule crosses midnight, shift days forward so stop occurs on next day
+            stop_job_id = f"schedule_{schedule.id}_stop"
+            if crosses_midnight:
+                shifted_bitfield = self._shift_days_forward(schedule.days_of_week)
+                stop_days = self._bitfield_to_cron_days(shifted_bitfield)
+            else:
+                stop_days = days
+
+            stop_trigger = CronTrigger(hour=end_hour, minute=end_minute, day_of_week=stop_days, timezone=timezone.utc)
+            self.scheduler.add_job(
+                self._handle_scheduled_stop,
+                stop_trigger,
+                id=stop_job_id,
+                args=[project_name, schedule.id, str(project_dir)],
+                replace_existing=True,
+                misfire_grace_time=300,
+            )
+
+            # Log next run times for monitoring
+            start_job = self.scheduler.get_job(start_job_id)
+            stop_job = self.scheduler.get_job(stop_job_id)
+            logger.info(
+                f"Registered schedule {schedule.id} for {project_name}: "
+                f"start at {hour:02d}:{minute:02d} UTC (next: {start_job.next_run_time}), "
+                f"stop at {end_hour:02d}:{end_minute:02d} UTC (next: {stop_job.next_run_time})"
+            )
+
+        except Exception as e:
+            logger.error(f"Error adding schedule {schedule.id}: {e}")
+
+    def remove_schedule(self, schedule_id: int):
+        """Remove APScheduler jobs for a schedule."""
+        start_job_id = f"schedule_{schedule_id}_start"
+        stop_job_id = f"schedule_{schedule_id}_stop"
+
+        removed = []
+        try:
+            self.scheduler.remove_job(start_job_id)
+            removed.append("start")
+        except Exception:
+            pass
+
+        try:
+            self.scheduler.remove_job(stop_job_id)
+            removed.append("stop")
+        except Exception:
+            pass
+
+        if removed:
+            logger.info(f"Removed schedule {schedule_id} jobs: {', '.join(removed)}")
+        else:
+            logger.warning(f"No jobs found to remove for schedule {schedule_id}")
+
+    async def _handle_scheduled_start(
+        self, project_name: str, schedule_id: int, project_dir_str: str
+    ):
+        """Handle scheduled agent start."""
+        logger.info(f"Scheduled start triggered for {project_name} (schedule {schedule_id})")
+        project_dir = Path(project_dir_str)
+
+        try:
+            from api.database import Schedule, ScheduleOverride, create_database
+
+            _, SessionLocal = create_database(project_dir)
+            db = SessionLocal()
+
+            try:
+                schedule = db.query(Schedule).filter(Schedule.id == schedule_id).first()
+                if not schedule or not schedule.enabled:
+                    return
+
+                # Check for manual stop override
+                now = datetime.now(timezone.utc)
+                override = db.query(ScheduleOverride).filter(
+                    ScheduleOverride.schedule_id == schedule_id,
+                    ScheduleOverride.override_type == "stop",
+                    ScheduleOverride.expires_at > now,
+                ).first()
+
+                if override:
+                    logger.info(
+                        f"Skipping scheduled start for {project_name}: "
+                        f"manual stop override active until {override.expires_at}"
+                    )
+                    return
+
+                # Reset crash count at window start
+                schedule.crash_count = 0
+                db.commit()
+
+                # Start agent
+                await self._start_agent(project_name, project_dir, schedule)
+
+            finally:
+                db.close()
+
+        except Exception as e:
+            logger.error(f"Error in scheduled start for {project_name}: {e}")
+
+    async def _handle_scheduled_stop(
+        self, project_name: str, schedule_id: int, project_dir_str: str
+    ):
+        """Handle scheduled agent stop."""
+        logger.info(f"Scheduled stop triggered for {project_name} (schedule {schedule_id})")
+        project_dir = Path(project_dir_str)
+
+        try:
+            from api.database import Schedule, ScheduleOverride, create_database
+
+            _, SessionLocal = create_database(project_dir)
+            db = SessionLocal()
+
+            try:
+                schedule = db.query(Schedule).filter(Schedule.id == schedule_id).first()
+                if not schedule:
+                    logger.warning(f"Schedule {schedule_id} not found in database")
+                    return
+
+                # Check if other schedules are still active (latest stop wins)
+                if self._other_schedules_still_active(db, project_name, schedule_id):
+                    logger.info(
+                        f"Skipping scheduled stop for {project_name}: "
+                        f"other schedules still active (latest stop wins)"
+                    )
+                    return
+
+                # Clear expired overrides for this schedule
+                now = datetime.now(timezone.utc)
+                db.query(ScheduleOverride).filter(
+                    ScheduleOverride.schedule_id == schedule_id,
+                    ScheduleOverride.expires_at <= now,
+                ).delete()
+                db.commit()
+
+                # Check for active manual-start overrides that prevent auto-stop
+                active_start_override = db.query(ScheduleOverride).filter(
+                    ScheduleOverride.schedule_id == schedule_id,
+                    ScheduleOverride.override_type == "start",
+                    ScheduleOverride.expires_at > now,
+                ).first()
+
+                if active_start_override:
+                    logger.info(
+                        f"Skipping scheduled stop for {project_name}: "
+                        f"active manual-start override (expires {active_start_override.expires_at})"
+                    )
+                    return
+
+                # Stop agent
+                await self._stop_agent(project_name, project_dir)
+
+            finally:
+                db.close()
+
+        except Exception as e:
+            logger.error(f"Error in scheduled stop for {project_name}: {e}")
+
+    def _other_schedules_still_active(
+        self, db, project_name: str, ending_schedule_id: int
+    ) -> bool:
+        """Check if any other schedule windows are still active."""
+        from api.database import Schedule
+
+        now = datetime.now(timezone.utc)
+        schedules = db.query(Schedule).filter(
+            Schedule.project_name == project_name,
+            Schedule.enabled == True,  # noqa: E712
+            Schedule.id != ending_schedule_id,
+        ).all()
+
+        for schedule in schedules:
+            if self._is_within_window(schedule, now):
+                return True
+        return False
+
+    def _is_within_window(self, schedule, now: datetime) -> bool:
+        """Check if current time is within schedule window."""
+        # Parse schedule times (keep timezone awareness from now)
+        start_hour, start_minute = map(int, schedule.start_time.split(":"))
+        start_time = now.replace(hour=start_hour, minute=start_minute, second=0, microsecond=0)
+
+        # Calculate end time
+        end_time = start_time + timedelta(minutes=schedule.duration_minutes)
+
+        # Detect midnight crossing
+        crosses_midnight = end_time < start_time or end_time.date() != start_time.date()
+
+        if crosses_midnight:
+            # Check today's window (start_time to midnight) OR yesterday's window (midnight to end_time)
+            # Today: if we're after start_time on the current day
+            if schedule.is_active_on_day(now.weekday()) and now >= start_time:
+                return True
+
+            # Yesterday: check if we're before end_time and yesterday was active
+            yesterday = (now.weekday() - 1) % 7
+            if schedule.is_active_on_day(yesterday):
+                yesterday_start = start_time - timedelta(days=1)
+                yesterday_end = end_time - timedelta(days=1)
+                if yesterday_start <= now < yesterday_end:
+                    return True
+
+            return False
+        else:
+            # Normal case: doesn't cross midnight
+            return schedule.is_active_on_day(now.weekday()) and start_time <= now < end_time
+
+    async def _start_agent(self, project_name: str, project_dir: Path, schedule):
+        """Start the agent for a project."""
+        from .process_manager import get_manager
+
+        root_dir = Path(__file__).parent.parent.parent
+        manager = get_manager(project_name, project_dir, root_dir)
+
+        if manager.status in ("running", "paused"):
+            logger.info(f"Agent already running for {project_name}, skipping scheduled start")
+            return
+
+        logger.info(
+            f"Starting agent for {project_name} "
+            f"(schedule {schedule.id}, yolo={schedule.yolo_mode}, concurrency={schedule.max_concurrency})"
+        )
+        success, msg = await manager.start(
+            yolo_mode=schedule.yolo_mode,
+            model=schedule.model,
+            max_concurrency=schedule.max_concurrency,
+        )
+
+        if success:
+            logger.info(f"✓ Agent started successfully for {project_name}")
+        else:
+            logger.error(f"✗ Failed to start agent for {project_name}: {msg}")
+
+    async def _stop_agent(self, project_name: str, project_dir: Path):
+        """Stop the agent for a project."""
+        from .process_manager import get_manager
+
+        root_dir = Path(__file__).parent.parent.parent
+        manager = get_manager(project_name, project_dir, root_dir)
+
+        if manager.status not in ("running", "paused"):
+            logger.info(f"Agent not running for {project_name}, skipping scheduled stop")
+            return
+
+        logger.info(f"Stopping agent for {project_name} (scheduled)")
+        success, msg = await manager.stop()
+
+        if success:
+            logger.info(f"✓ Agent stopped successfully for {project_name}")
+        else:
+            logger.error(f"✗ Failed to stop agent for {project_name}: {msg}")
+
+    async def handle_crash_during_window(self, project_name: str, project_dir: Path):
+        """Called when agent crashes. Attempt restart with backoff."""
+        from api.database import Schedule, create_database
+
+        _, SessionLocal = create_database(project_dir)
+        db = SessionLocal()
+
+        try:
+            now = datetime.now(timezone.utc)
+            schedules = db.query(Schedule).filter(
+                Schedule.project_name == project_name,
+                Schedule.enabled == True,  # noqa: E712
+            ).all()
+
+            for schedule in schedules:
+                if not self._is_within_window(schedule, now):
+                    continue
+
+                if schedule.crash_count >= MAX_CRASH_RETRIES:
+                    logger.warning(
+                        f"Max crash retries ({MAX_CRASH_RETRIES}) reached for "
+                        f"schedule {schedule.id} on {project_name}"
+                    )
+                    continue
+
+                schedule.crash_count += 1
+                db.commit()
+
+                # Exponential backoff: 10s, 30s, 90s
+                delay = CRASH_BACKOFF_BASE * (3 ** (schedule.crash_count - 1))
+                logger.info(
+                    f"Restarting agent for {project_name} in {delay}s "
+                    f"(attempt {schedule.crash_count})"
+                )
+
+                await asyncio.sleep(delay)
+                await self._start_agent(project_name, project_dir, schedule)
+                return  # Only restart once
+
+        finally:
+            db.close()
+
+    def notify_manual_start(self, project_name: str, project_dir: Path):
+        """Record manual start to prevent auto-stop."""
+        logger.info(f"Manual start detected for {project_name}, creating override to prevent auto-stop")
+        self._create_override_for_active_schedules(project_name, project_dir, "start")
+
+    def notify_manual_stop(self, project_name: str, project_dir: Path):
+        """Record manual stop to prevent auto-start."""
+        logger.info(f"Manual stop detected for {project_name}, creating override to prevent auto-start")
+        self._create_override_for_active_schedules(project_name, project_dir, "stop")
+
+    def _create_override_for_active_schedules(
+        self, project_name: str, project_dir: Path, override_type: str
+    ):
+        """Create overrides for all active schedule windows."""
+        from api.database import Schedule, ScheduleOverride, create_database
+
+        try:
+            _, SessionLocal = create_database(project_dir)
+            db = SessionLocal()
+
+            try:
+                now = datetime.now(timezone.utc)
+                schedules = db.query(Schedule).filter(
+                    Schedule.project_name == project_name,
+                    Schedule.enabled == True,  # noqa: E712
+                ).all()
+
+                overrides_created = 0
+                for schedule in schedules:
+                    if not self._is_within_window(schedule, now):
+                        continue
+
+                    # Calculate window end time
+                    window_end = self._calculate_window_end(schedule, now)
+
+                    # Check if override already exists
+                    existing = db.query(ScheduleOverride).filter(
+                        ScheduleOverride.schedule_id == schedule.id,
+                        ScheduleOverride.override_type == override_type,
+                        ScheduleOverride.expires_at > now,
+                    ).first()
+
+                    if existing:
+                        continue
+
+                    # Create override
+                    override = ScheduleOverride(
+                        schedule_id=schedule.id,
+                        override_type=override_type,
+                        expires_at=window_end,
+                    )
+                    db.add(override)
+                    overrides_created += 1
+                    logger.info(
+                        f"Created '{override_type}' override for schedule {schedule.id} "
+                        f"(expires at {window_end})"
+                    )
+
+                db.commit()
+                if overrides_created > 0:
+                    logger.info(f"Created {overrides_created} override(s) for {project_name}")
+
+            finally:
+                db.close()
+
+        except Exception as e:
+            logger.error(f"Error creating override for {project_name}: {e}")
+
+    def _calculate_window_end(self, schedule, now: datetime) -> datetime:
+        """Calculate when the current window ends."""
+        start_hour, start_minute = map(int, schedule.start_time.split(":"))
+
+        # Create start time for today
+        window_start = now.replace(
+            hour=start_hour, minute=start_minute, second=0, microsecond=0
+        )
+
+        # If current time is before start time, the window started yesterday
+        if now.replace(tzinfo=None) < window_start.replace(tzinfo=None):
+            window_start = window_start - timedelta(days=1)
+
+        window_end = window_start + timedelta(minutes=schedule.duration_minutes)
+        return window_end
+
+    async def _check_missed_windows_on_startup(self):
+        """Called on server start. Start agents for any active windows."""
+        from registry import list_registered_projects
+
+        try:
+            now = datetime.now(timezone.utc)
+            projects = list_registered_projects()
+
+            for project_name, info in projects.items():
+                project_dir = Path(info.get("path", ""))
+                if not project_dir.exists():
+                    continue
+
+                await self._check_project_on_startup(project_name, project_dir, now)
+
+        except Exception as e:
+            logger.error(f"Error checking missed windows on startup: {e}")
+
+    async def _check_project_on_startup(
+        self, project_name: str, project_dir: Path, now: datetime
+    ):
+        """Check if a project should be started on server startup."""
+        from api.database import Schedule, ScheduleOverride, create_database
+
+        db_path = project_dir / "features.db"
+        if not db_path.exists():
+            return
+
+        try:
+            _, SessionLocal = create_database(project_dir)
+            db = SessionLocal()
+
+            try:
+                schedules = db.query(Schedule).filter(
+                    Schedule.project_name == project_name,
+                    Schedule.enabled == True,  # noqa: E712
+                ).all()
+
+                for schedule in schedules:
+                    if not self._is_within_window(schedule, now):
+                        continue
+
+                    # Check for manual stop override
+                    override = db.query(ScheduleOverride).filter(
+                        ScheduleOverride.schedule_id == schedule.id,
+                        ScheduleOverride.override_type == "stop",
+                        ScheduleOverride.expires_at > now,
+                    ).first()
+
+                    if override:
+                        logger.info(
+                            f"Skipping startup start for {project_name}: "
+                            f"manual stop override active"
+                        )
+                        continue
+
+                    # Start the agent
+                    logger.info(
+                        f"Starting {project_name} for active schedule {schedule.id} "
+                        f"(server startup)"
+                    )
+                    await self._start_agent(project_name, project_dir, schedule)
+                    return  # Only start once per project
+
+            finally:
+                db.close()
+
+        except Exception as e:
+            logger.error(f"Error checking startup for {project_name}: {e}")
+
+    @staticmethod
+    def _shift_days_forward(bitfield: int) -> int:
+        """
+        Shift the 7-bit day mask forward by one day for midnight-crossing schedules.
+
+        Examples:
+            Monday (1) -> Tuesday (2)
+            Sunday (64) -> Monday (1)
+            Mon+Tue (3) -> Tue+Wed (6)
+        """
+        shifted = 0
+        # Shift each day forward, wrapping Sunday to Monday
+        if bitfield & 1:
+            shifted |= 2   # Mon -> Tue
+        if bitfield & 2:
+            shifted |= 4   # Tue -> Wed
+        if bitfield & 4:
+            shifted |= 8   # Wed -> Thu
+        if bitfield & 8:
+            shifted |= 16  # Thu -> Fri
+        if bitfield & 16:
+            shifted |= 32  # Fri -> Sat
+        if bitfield & 32:
+            shifted |= 64  # Sat -> Sun
+        if bitfield & 64:
+            shifted |= 1   # Sun -> Mon
+        return shifted
+
+    @staticmethod
+    def _bitfield_to_cron_days(bitfield: int) -> str:
+        """Convert days bitfield to APScheduler cron format."""
+        days = []
+        day_map = [
+            (1, "mon"),
+            (2, "tue"),
+            (4, "wed"),
+            (8, "thu"),
+            (16, "fri"),
+            (32, "sat"),
+            (64, "sun"),
+        ]
+        for bit, name in day_map:
+            if bitfield & bit:
+                days.append(name)
+        return ",".join(days) if days else "mon-sun"
+
+
+# Global scheduler instance
+_scheduler: Optional[SchedulerService] = None
+
+
+def get_scheduler() -> SchedulerService:
+    """Get the global scheduler instance."""
+    global _scheduler
+    if _scheduler is None:
+        _scheduler = SchedulerService()
+    return _scheduler
+
+
+async def cleanup_scheduler():
+    """Clean up scheduler on shutdown."""
+    global _scheduler
+    if _scheduler is not None:
+        await _scheduler.stop()
+        _scheduler = None

ui/src/components/AgentControl.tsx

@@ -1,10 +1,13 @@
 import { useState } from 'react'
-import { Play, Square, Loader2, GitBranch } from 'lucide-react'
+import { Play, Square, Loader2, GitBranch, Clock } from 'lucide-react'
 import {
   useStartAgent,
   useStopAgent,
   useSettings,
 } from '../hooks/useProjects'
+import { useNextScheduledRun } from '../hooks/useSchedules'
+import { formatNextRun, formatEndTime } from '../lib/timeUtils'
+import { ScheduleModal } from './ScheduleModal'
 import type { AgentStatus } from '../lib/types'
 
 interface AgentControlProps {
@@ -21,6 +24,9 @@ export function AgentControl({ projectName, status }: AgentControlProps) {
 
   const startAgent = useStartAgent(projectName)
   const stopAgent = useStopAgent(projectName)
+  const { data: nextRun } = useNextScheduledRun(projectName)
+
+  const [showScheduleModal, setShowScheduleModal] = useState(false)
 
   const isLoading = startAgent.isPending || stopAgent.isPending
   const isRunning = status === 'running' || status === 'paused'
@@ -40,78 +46,113 @@ export function AgentControl({ projectName, status }: AgentControlProps) {
   const isStopped = status === 'stopped' || status === 'crashed'
 
   return (
-    <div className="flex items-center gap-2">
+    <>
-      {/* Concurrency slider - visible when stopped (not during loading or running) */}
+      <div className="flex items-center gap-4">
-      {isStopped && (
+        {/* Concurrency slider - visible when stopped */}
-        <div className="flex items-center gap-2">
+        {isStopped && (
-          <GitBranch size={16} className={isParallel ? 'text-[var(--color-neo-primary)]' : 'text-gray-400'} />
+          <div className="flex items-center gap-2">
-          <input
+            <GitBranch size={16} className={isParallel ? 'text-[var(--color-neo-primary)]' : 'text-gray-400'} />
-            type="range"
+            <input
-            min={1}
+              type="range"
-            max={5}
+              min={1}
-            value={concurrency}
+              max={5}
-            onChange={(e) => setConcurrency(Number(e.target.value))}
+              value={concurrency}
+              onChange={(e) => setConcurrency(Number(e.target.value))}
+              disabled={isLoading}
+              className="w-16 h-2 accent-[var(--color-neo-primary)] cursor-pointer"
+              title={`${concurrency} concurrent agent${concurrency > 1 ? 's' : ''}`}
+              aria-label="Set number of concurrent agents"
+            />
+            <span className="text-xs font-bold min-w-[1.5rem] text-center">
+              {concurrency}x
+            </span>
+          </div>
+        )}
+
+        {/* Show concurrency indicator when running with multiple agents */}
+        {isRunning && isParallel && (
+          <div className="flex items-center gap-1 text-xs text-[var(--color-neo-primary)] font-bold">
+            <GitBranch size={14} />
+            <span>{concurrency}x</span>
+          </div>
+        )}
+
+        {/* Schedule status display */}
+        {nextRun?.is_currently_running && nextRun.next_end && (
+          <div className="flex items-center gap-2 text-sm text-[var(--color-neo-done)] font-bold">
+            <Clock size={16} className="flex-shrink-0" />
+            <span>Running until {formatEndTime(nextRun.next_end)}</span>
+          </div>
+        )}
+
+        {!nextRun?.is_currently_running && nextRun?.next_start && (
+          <div className="flex items-center gap-2 text-sm text-gray-900 dark:text-white font-bold">
+            <Clock size={16} className="flex-shrink-0" />
+            <span>Next: {formatNextRun(nextRun.next_start)}</span>
+          </div>
+        )}
+
+        {/* Start/Stop button */}
+        {isLoadingStatus ? (
+          <button
+            disabled
+            className="neo-btn text-sm py-2 px-3 opacity-50 cursor-not-allowed"
+            title="Loading agent status..."
+            aria-label="Loading agent status"
+          >
+            <Loader2 size={18} className="animate-spin" />
+          </button>
+        ) : isStopped ? (
+          <button
+            onClick={handleStart}
             disabled={isLoading}
-            className="w-16 h-2 accent-[var(--color-neo-primary)] cursor-pointer"
+            className={`neo-btn text-sm py-2 px-3 ${
-            title={`${concurrency} concurrent agent${concurrency > 1 ? 's' : ''}`}
+              yoloMode ? 'neo-btn-yolo' : 'neo-btn-success'
-            aria-label="Set number of concurrent agents"
+            }`}
-          />
+            title={yoloMode ? 'Start Agent (YOLO Mode)' : 'Start Agent'}
-          <span className="text-xs font-bold min-w-[1.5rem] text-center">
+            aria-label={yoloMode ? 'Start Agent in YOLO Mode' : 'Start Agent'}
-            {concurrency}x
+          >
-          </span>
+            {isLoading ? (
-        </div>
+              <Loader2 size={18} className="animate-spin" />
-      )}
+            ) : (
+              <Play size={18} />
+            )}
+          </button>
+        ) : (
+          <button
+            onClick={handleStop}
+            disabled={isLoading}
+            className={`neo-btn text-sm py-2 px-3 ${
+              yoloMode ? 'neo-btn-yolo' : 'neo-btn-danger'
+            }`}
+            title={yoloMode ? 'Stop Agent (YOLO Mode)' : 'Stop Agent'}
+            aria-label={yoloMode ? 'Stop Agent in YOLO Mode' : 'Stop Agent'}
+          >
+            {isLoading ? (
+              <Loader2 size={18} className="animate-spin" />
+            ) : (
+              <Square size={18} />
+            )}
+          </button>
+        )}
 
-      {/* Show concurrency indicator when running with multiple agents */}
+        {/* Clock button to open schedule modal */}
-      {isRunning && isParallel && (
+        <button
-        <div className="flex items-center gap-1 text-xs text-[var(--color-neo-primary)] font-bold">
+          onClick={() => setShowScheduleModal(true)}
-          <GitBranch size={14} />
+          className="neo-btn text-sm py-2 px-3"
-          <span>{concurrency}x</span>
+          title="Manage schedules"
-        </div>
+          aria-label="Manage agent schedules"
-      )}
+        >
+          <Clock size={18} />
+        </button>
+      </div>
 
-      {isLoadingStatus ? (
+      {/* Schedule Modal */}
-        <button
+      <ScheduleModal
-          disabled
+        projectName={projectName}
-          className="neo-btn text-sm py-2 px-3 opacity-50 cursor-not-allowed"
+        isOpen={showScheduleModal}
-          title="Loading agent status..."
+        onClose={() => setShowScheduleModal(false)}
-          aria-label="Loading agent status"
+      />
-        >
+    </>
-          <Loader2 size={18} className="animate-spin" />
-        </button>
-      ) : isStopped ? (
-        <button
-          onClick={handleStart}
-          disabled={isLoading}
-          className={`neo-btn text-sm py-2 px-3 ${
-            yoloMode ? 'neo-btn-yolo' : 'neo-btn-success'
-          }`}
-          title={yoloMode ? 'Start Agent (YOLO Mode)' : 'Start Agent'}
-          aria-label={yoloMode ? 'Start Agent in YOLO Mode' : 'Start Agent'}
-        >
-          {isLoading ? (
-            <Loader2 size={18} className="animate-spin" />
-          ) : (
-            <Play size={18} />
-          )}
-        </button>
-      ) : (
-        <button
-          onClick={handleStop}
-          disabled={isLoading}
-          className={`neo-btn text-sm py-2 px-3 ${
-            yoloMode ? 'neo-btn-yolo' : 'neo-btn-danger'
-          }`}
-          title={yoloMode ? 'Stop Agent (YOLO Mode)' : 'Stop Agent'}
-          aria-label={yoloMode ? 'Stop Agent in YOLO Mode' : 'Stop Agent'}
-        >
-          {isLoading ? (
-            <Loader2 size={18} className="animate-spin" />
-          ) : (
-            <Square size={18} />
-          )}
-        </button>
-      )}
-    </div>
   )
 }

ui/src/components/ScheduleModal.tsx

@@ -0,0 +1,442 @@
+/**
+ * Schedule Modal Component
+ *
+ * Modal for managing agent schedules (create, edit, delete).
+ * Follows neobrutalism design patterns from SettingsModal.
+ */
+
+import { useState, useEffect, useRef } from 'react'
+import { Clock, GitBranch, Trash2, X } from 'lucide-react'
+import {
+  useSchedules,
+  useCreateSchedule,
+  useDeleteSchedule,
+  useToggleSchedule,
+} from '../hooks/useSchedules'
+import {
+  utcToLocal,
+  localToUTC,
+  formatDuration,
+  DAYS,
+  isDayActive,
+  toggleDay,
+} from '../lib/timeUtils'
+import type { ScheduleCreate } from '../lib/types'
+
+interface ScheduleModalProps {
+  projectName: string
+  isOpen: boolean
+  onClose: () => void
+}
+
+export function ScheduleModal({ projectName, isOpen, onClose }: ScheduleModalProps) {
+  const modalRef = useRef<HTMLDivElement>(null)
+  const firstFocusableRef = useRef<HTMLButtonElement>(null)
+
+  // Queries and mutations
+  const { data: schedulesData, isLoading } = useSchedules(projectName)
+  const createSchedule = useCreateSchedule(projectName)
+  const deleteSchedule = useDeleteSchedule(projectName)
+  const toggleSchedule = useToggleSchedule(projectName)
+
+  // Form state for new schedule
+  const [newSchedule, setNewSchedule] = useState<ScheduleCreate>({
+    start_time: '22:00',
+    duration_minutes: 240,
+    days_of_week: 31, // Weekdays by default
+    enabled: true,
+    yolo_mode: false,
+    model: null,
+    max_concurrency: 3,
+  })
+
+  const [error, setError] = useState<string | null>(null)
+
+  // Focus trap
+  useEffect(() => {
+    if (isOpen && firstFocusableRef.current) {
+      firstFocusableRef.current.focus()
+    }
+  }, [isOpen])
+
+  // Keyboard navigation
+  useEffect(() => {
+    const handleKeyDown = (e: KeyboardEvent) => {
+      if (!isOpen) return
+
+      if (e.key === 'Escape') {
+        onClose()
+      }
+
+      if (e.key === 'Tab' && modalRef.current) {
+        const focusableElements = modalRef.current.querySelectorAll<HTMLElement>(
+          'button, input, select, textarea, [tabindex]:not([tabindex="-1"])'
+        )
+        const firstElement = focusableElements[0]
+        const lastElement = focusableElements[focusableElements.length - 1]
+
+        if (e.shiftKey && document.activeElement === firstElement) {
+          e.preventDefault()
+          lastElement?.focus()
+        } else if (!e.shiftKey && document.activeElement === lastElement) {
+          e.preventDefault()
+          firstElement?.focus()
+        }
+      }
+    }
+
+    document.addEventListener('keydown', handleKeyDown)
+    return () => document.removeEventListener('keydown', handleKeyDown)
+  }, [isOpen, onClose])
+
+  if (!isOpen) return null
+
+  const schedules = schedulesData?.schedules || []
+
+  const handleCreateSchedule = async () => {
+    try {
+      setError(null)
+
+      // Validate
+      if (newSchedule.days_of_week === 0) {
+        setError('Please select at least one day')
+        return
+      }
+
+      // Validate duration
+      if (newSchedule.duration_minutes < 1 || newSchedule.duration_minutes > 1440) {
+        setError('Duration must be between 1 and 1440 minutes')
+        return
+      }
+
+      // Convert local time to UTC
+      const scheduleToCreate = {
+        ...newSchedule,
+        start_time: localToUTC(newSchedule.start_time),
+      }
+
+      await createSchedule.mutateAsync(scheduleToCreate)
+
+      // Reset form
+      setNewSchedule({
+        start_time: '22:00',
+        duration_minutes: 240,
+        days_of_week: 31,
+        enabled: true,
+        yolo_mode: false,
+        model: null,
+        max_concurrency: 3,
+      })
+    } catch (err) {
+      setError(err instanceof Error ? err.message : 'Failed to create schedule')
+    }
+  }
+
+  const handleToggleSchedule = async (scheduleId: number, enabled: boolean) => {
+    try {
+      setError(null)
+      await toggleSchedule.mutateAsync({ scheduleId, enabled: !enabled })
+    } catch (err) {
+      setError(err instanceof Error ? err.message : 'Failed to toggle schedule')
+    }
+  }
+
+  const handleDeleteSchedule = async (scheduleId: number) => {
+    if (!confirm('Are you sure you want to delete this schedule?')) return
+
+    try {
+      setError(null)
+      await deleteSchedule.mutateAsync(scheduleId)
+    } catch (err) {
+      setError(err instanceof Error ? err.message : 'Failed to delete schedule')
+    }
+  }
+
+  const handleToggleDay = (dayBit: number) => {
+    setNewSchedule((prev) => ({
+      ...prev,
+      days_of_week: toggleDay(prev.days_of_week, dayBit),
+    }))
+  }
+
+  return (
+    <div
+      className="neo-modal-backdrop"
+      onClick={(e) => {
+        if (e.target === e.currentTarget) {
+          onClose()
+        }
+      }}
+    >
+      <div ref={modalRef} className="neo-modal p-6" style={{ maxWidth: '650px', maxHeight: '80vh' }}>
+        {/* Header */}
+        <div className="flex items-center justify-between mb-6">
+          <div className="flex items-center gap-2">
+            <Clock size={24} className="text-[var(--color-neo-progress)]" />
+            <h2 className="text-xl font-bold text-gray-900 dark:text-white">Agent Schedules</h2>
+          </div>
+          <button
+            ref={firstFocusableRef}
+            onClick={onClose}
+            className="neo-btn neo-btn-ghost p-2"
+            aria-label="Close modal"
+          >
+            <X size={20} />
+          </button>
+        </div>
+
+        {/* Error display */}
+        {error && (
+          <div className="mb-4 p-3 border-2 border-red-500 bg-red-50 dark:bg-red-900/20 text-red-800 dark:text-red-200 rounded">
+            {error}
+          </div>
+        )}
+
+        {/* Loading state */}
+        {isLoading && (
+          <div className="text-center py-8 text-gray-600 dark:text-gray-300">
+            Loading schedules...
+          </div>
+        )}
+
+        {/* Existing schedules */}
+        {!isLoading && schedules.length > 0 && (
+          <div className="space-y-3 mb-6 max-h-[300px] overflow-y-auto">
+            {schedules.map((schedule) => {
+              const localTime = utcToLocal(schedule.start_time)
+              const duration = formatDuration(schedule.duration_minutes)
+
+              return (
+                <div
+                  key={schedule.id}
+                  className="neo-card p-4 flex items-start justify-between gap-4"
+                >
+                  <div className="flex-1">
+                    {/* Time and duration */}
+                    <div className="flex items-baseline gap-2 mb-2">
+                      <span className="text-lg font-bold text-gray-900 dark:text-white">{localTime}</span>
+                      <span className="text-sm text-gray-600 dark:text-gray-300">
+                        for {duration}
+                      </span>
+                    </div>
+
+                    {/* Days */}
+                    <div className="flex gap-1 mb-2">
+                      {DAYS.map((day) => {
+                        const isActive = isDayActive(schedule.days_of_week, day.bit)
+                        return (
+                          <span
+                            key={day.label}
+                            className={`text-xs px-2 py-1 rounded border-2 ${
+                              isActive
+                                ? 'border-[var(--color-neo-progress)] bg-[var(--color-neo-progress)] text-white font-bold'
+                                : 'border-gray-300 dark:border-gray-600 text-gray-400 dark:text-gray-500'
+                            }`}
+                          >
+                            {day.label}
+                          </span>
+                        )
+                      })}
+                    </div>
+
+                    {/* Metadata */}
+                    <div className="flex gap-3 text-xs text-gray-600 dark:text-gray-300">
+                      {schedule.yolo_mode && (
+                        <span className="font-bold text-yellow-600">⚡ YOLO mode</span>
+                      )}
+                      <span className="flex items-center gap-1">
+                        <GitBranch size={12} />
+                        {schedule.max_concurrency}x
+                      </span>
+                      {schedule.model && <span>Model: {schedule.model}</span>}
+                      {schedule.crash_count > 0 && (
+                        <span className="text-red-600">Crashes: {schedule.crash_count}</span>
+                      )}
+                    </div>
+                  </div>
+
+                  {/* Actions */}
+                  <div className="flex items-center gap-2">
+                    {/* Enable/disable toggle */}
+                    <button
+                      onClick={() => handleToggleSchedule(schedule.id, schedule.enabled)}
+                      className={`neo-btn neo-btn-ghost px-3 py-1 text-xs font-bold ${
+                        schedule.enabled
+                          ? 'text-[var(--color-neo-done)]'
+                          : 'text-[var(--color-neo-text-secondary)]'
+                      }`}
+                      disabled={toggleSchedule.isPending}
+                    >
+                      {schedule.enabled ? 'Enabled' : 'Disabled'}
+                    </button>
+
+                    {/* Delete button */}
+                    <button
+                      onClick={() => handleDeleteSchedule(schedule.id)}
+                      className="neo-btn neo-btn-ghost p-2 text-red-600 hover:bg-red-50"
+                      disabled={deleteSchedule.isPending}
+                      aria-label="Delete schedule"
+                    >
+                      <Trash2 size={16} />
+                    </button>
+                  </div>
+                </div>
+              )
+            })}
+          </div>
+        )}
+
+        {/* Empty state */}
+        {!isLoading && schedules.length === 0 && (
+          <div className="text-center py-6 text-gray-600 dark:text-gray-300 mb-6">
+            <Clock size={48} className="mx-auto mb-2 opacity-50 text-gray-400 dark:text-gray-500" />
+            <p>No schedules configured yet</p>
+          </div>
+        )}
+
+        {/* Divider */}
+        <div className="border-t-2 border-gray-200 dark:border-gray-700 my-6"></div>
+
+        {/* Add new schedule form */}
+        <div>
+          <h3 className="text-lg font-bold text-gray-900 dark:text-white mb-4">Add New Schedule</h3>
+
+          {/* Time and duration */}
+          <div className="grid grid-cols-2 gap-4 mb-4">
+            <div>
+              <label className="block text-sm font-bold text-gray-700 dark:text-gray-200 mb-2">Start Time (Local)</label>
+              <input
+                type="time"
+                value={newSchedule.start_time}
+                onChange={(e) =>
+                  setNewSchedule((prev) => ({ ...prev, start_time: e.target.value }))
+                }
+                className="neo-input w-full"
+              />
+            </div>
+            <div>
+              <label className="block text-sm font-bold text-gray-700 dark:text-gray-200 mb-2">Duration (minutes)</label>
+              <input
+                type="number"
+                min="1"
+                max="1440"
+                value={newSchedule.duration_minutes}
+                onChange={(e) => {
+                  const parsed = parseInt(e.target.value, 10)
+                  const value = isNaN(parsed) ? 1 : Math.max(1, Math.min(1440, parsed))
+                  setNewSchedule((prev) => ({
+                    ...prev,
+                    duration_minutes: value,
+                  }))
+                }}
+                className="neo-input w-full"
+              />
+              <div className="text-xs text-gray-600 dark:text-gray-400 mt-1">
+                {formatDuration(newSchedule.duration_minutes)}
+              </div>
+            </div>
+          </div>
+
+          {/* Days of week */}
+          <div className="mb-4">
+            <label className="block text-sm font-bold text-gray-700 dark:text-gray-200 mb-2">Days</label>
+            <div className="flex gap-2">
+              {DAYS.map((day) => {
+                const isActive = isDayActive(newSchedule.days_of_week, day.bit)
+                return (
+                  <button
+                    key={day.label}
+                    onClick={() => handleToggleDay(day.bit)}
+                    className={`neo-btn px-3 py-2 text-sm ${
+                      isActive
+                        ? 'bg-[var(--color-neo-progress)] text-white border-[var(--color-neo-progress)]'
+                        : 'neo-btn-ghost'
+                    }`}
+                  >
+                    {day.label}
+                  </button>
+                )
+              })}
+            </div>
+          </div>
+
+          {/* YOLO mode toggle */}
+          <div className="mb-4">
+            <label className="flex items-center gap-2 cursor-pointer">
+              <input
+                type="checkbox"
+                checked={newSchedule.yolo_mode}
+                onChange={(e) =>
+                  setNewSchedule((prev) => ({ ...prev, yolo_mode: e.target.checked }))
+                }
+                className="w-4 h-4"
+              />
+              <span className="text-sm font-bold text-gray-700 dark:text-gray-200">YOLO Mode (skip testing)</span>
+            </label>
+          </div>
+
+          {/* Concurrency slider */}
+          <div className="mb-4">
+            <label className="block text-sm font-bold text-gray-700 dark:text-gray-200 mb-2">
+              Concurrent Agents (1-5)
+            </label>
+            <div className="flex items-center gap-3">
+              <GitBranch
+                size={16}
+                className={newSchedule.max_concurrency > 1 ? 'text-[var(--color-neo-primary)]' : 'text-gray-400'}
+              />
+              <input
+                type="range"
+                min={1}
+                max={5}
+                value={newSchedule.max_concurrency}
+                onChange={(e) =>
+                  setNewSchedule((prev) => ({ ...prev, max_concurrency: Number(e.target.value) }))
+                }
+                className="flex-1 h-2 accent-[var(--color-neo-primary)] cursor-pointer"
+                title={`${newSchedule.max_concurrency} concurrent agent${newSchedule.max_concurrency > 1 ? 's' : ''}`}
+                aria-label="Set number of concurrent agents"
+              />
+              <span className="text-sm font-bold min-w-[2rem] text-center text-gray-900 dark:text-white">
+                {newSchedule.max_concurrency}x
+              </span>
+            </div>
+            <div className="text-xs text-gray-600 dark:text-gray-400 mt-1">
+              Run {newSchedule.max_concurrency} agent{newSchedule.max_concurrency > 1 ? 's' : ''} in parallel for faster feature completion
+            </div>
+          </div>
+
+          {/* Model selection (optional) */}
+          <div className="mb-6">
+            <label className="block text-sm font-bold text-gray-700 dark:text-gray-200 mb-2">
+              Model (optional, defaults to global setting)
+            </label>
+            <input
+              type="text"
+              placeholder="e.g., claude-3-5-sonnet-20241022"
+              value={newSchedule.model || ''}
+              onChange={(e) =>
+                setNewSchedule((prev) => ({ ...prev, model: e.target.value || null }))
+              }
+              className="neo-input w-full"
+            />
+          </div>
+
+          {/* Actions */}
+          <div className="flex justify-end gap-3">
+            <button onClick={onClose} className="neo-btn neo-btn-ghost">
+              Close
+            </button>
+            <button
+              onClick={handleCreateSchedule}
+              disabled={createSchedule.isPending || newSchedule.days_of_week === 0}
+              className="neo-btn neo-btn-primary"
+            >
+              {createSchedule.isPending ? 'Creating...' : 'Create Schedule'}
+            </button>
+          </div>
+        </div>
+      </div>
+    </div>
+  )
+}

ui/src/components/Terminal.tsx

@@ -359,7 +359,7 @@ export function Terminal({ projectName, terminalId, isActive }: TerminalProps) {
     // when the container is first rendered.
 
     // Handle keyboard input
-    terminal.onData((data) => {
+    terminal.onData((data: string) => {
       // If shell has exited, reconnect on any key
       // Use ref to avoid re-creating this callback when hasExited changes
       if (hasExitedRef.current) {
@@ -378,7 +378,7 @@ export function Terminal({ projectName, terminalId, isActive }: TerminalProps) {
     })
 
     // Handle terminal resize
-    terminal.onResize(({ cols, rows }) => {
+    terminal.onResize(({ cols, rows }: { cols: number; rows: number }) => {
       sendResize(cols, rows)
     })
   }, [encodeBase64, sendMessage, sendResize])

ui/src/hooks/useProjects.ts

@@ -143,6 +143,8 @@ export function useStopAgent(projectName: string) {
     mutationFn: () => api.stopAgent(projectName),
     onSuccess: () => {
       queryClient.invalidateQueries({ queryKey: ['agent-status', projectName] })
+      // Invalidate schedule status to reflect manual stop override
+      queryClient.invalidateQueries({ queryKey: ['nextRun', projectName] })
     },
   })
 }

ui/src/hooks/useSchedules.ts

@@ -0,0 +1,112 @@
+/**
+ * React Query hooks for schedule data
+ */
+
+import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query'
+import * as api from '../lib/api'
+import type { ScheduleCreate, ScheduleUpdate } from '../lib/types'
+
+// ============================================================================
+// Schedules
+// ============================================================================
+
+/**
+ * Hook to fetch all schedules for a project.
+ */
+export function useSchedules(projectName: string | null) {
+  return useQuery({
+    queryKey: ['schedules', projectName],
+    queryFn: () => api.listSchedules(projectName!),
+    enabled: !!projectName,
+  })
+}
+
+/**
+ * Hook to fetch a single schedule.
+ */
+export function useSchedule(projectName: string | null, scheduleId: number | null) {
+  return useQuery({
+    queryKey: ['schedule', projectName, scheduleId],
+    queryFn: () => api.getSchedule(projectName!, scheduleId!),
+    enabled: !!projectName && !!scheduleId,
+  })
+}
+
+/**
+ * Hook to create a new schedule.
+ */
+export function useCreateSchedule(projectName: string) {
+  const queryClient = useQueryClient()
+
+  return useMutation({
+    mutationFn: (schedule: ScheduleCreate) => api.createSchedule(projectName, schedule),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['schedules', projectName] })
+      queryClient.invalidateQueries({ queryKey: ['nextRun', projectName] })
+    },
+  })
+}
+
+/**
+ * Hook to update an existing schedule.
+ */
+export function useUpdateSchedule(projectName: string) {
+  const queryClient = useQueryClient()
+
+  return useMutation({
+    mutationFn: ({ scheduleId, update }: { scheduleId: number; update: ScheduleUpdate }) =>
+      api.updateSchedule(projectName, scheduleId, update),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['schedules', projectName] })
+      queryClient.invalidateQueries({ queryKey: ['nextRun', projectName] })
+    },
+  })
+}
+
+/**
+ * Hook to delete a schedule.
+ */
+export function useDeleteSchedule(projectName: string) {
+  const queryClient = useQueryClient()
+
+  return useMutation({
+    mutationFn: (scheduleId: number) => api.deleteSchedule(projectName, scheduleId),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['schedules', projectName] })
+      queryClient.invalidateQueries({ queryKey: ['nextRun', projectName] })
+    },
+  })
+}
+
+/**
+ * Hook to toggle a schedule's enabled state.
+ */
+export function useToggleSchedule(projectName: string) {
+  const queryClient = useQueryClient()
+
+  return useMutation({
+    mutationFn: ({ scheduleId, enabled }: { scheduleId: number; enabled: boolean }) =>
+      api.updateSchedule(projectName, scheduleId, { enabled }),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['schedules', projectName] })
+      queryClient.invalidateQueries({ queryKey: ['nextRun', projectName] })
+    },
+  })
+}
+
+// ============================================================================
+// Next Run
+// ============================================================================
+
+/**
+ * Hook to fetch the next scheduled run for a project.
+ * Polls every 30 seconds to keep status up-to-date.
+ */
+export function useNextScheduledRun(projectName: string | null) {
+  return useQuery({
+    queryKey: ['nextRun', projectName],
+    queryFn: () => api.getNextScheduledRun(projectName!),
+    enabled: !!projectName,
+    refetchInterval: 30000, // Refresh every 30 seconds
+  })
+}

ui/src/lib/api.ts

@@ -26,6 +26,11 @@ import type {
   DevServerStatusResponse,
   DevServerConfig,
   TerminalInfo,
+  Schedule,
+  ScheduleCreate,
+  ScheduleUpdate,
+  ScheduleListResponse,
+  NextRunResponse,
 } from './types'
 
 const API_BASE = '/api'
@@ -44,6 +49,11 @@ async function fetchJSON<T>(url: string, options?: RequestInit): Promise<T> {
     throw new Error(error.detail || `HTTP ${response.status}`)
   }
 
+  // Handle 204 No Content responses
+  if (response.status === 204) {
+    return undefined as T
+  }
+
   return response.json()
 }
 
@@ -441,3 +451,52 @@ export async function deleteTerminal(
     method: 'DELETE',
   })
 }
+
+// ============================================================================
+// Schedule API
+// ============================================================================
+
+export async function listSchedules(projectName: string): Promise<ScheduleListResponse> {
+  return fetchJSON(`/projects/${encodeURIComponent(projectName)}/schedules`)
+}
+
+export async function createSchedule(
+  projectName: string,
+  schedule: ScheduleCreate
+): Promise<Schedule> {
+  return fetchJSON(`/projects/${encodeURIComponent(projectName)}/schedules`, {
+    method: 'POST',
+    body: JSON.stringify(schedule),
+  })
+}
+
+export async function getSchedule(
+  projectName: string,
+  scheduleId: number
+): Promise<Schedule> {
+  return fetchJSON(`/projects/${encodeURIComponent(projectName)}/schedules/${scheduleId}`)
+}
+
+export async function updateSchedule(
+  projectName: string,
+  scheduleId: number,
+  update: ScheduleUpdate
+): Promise<Schedule> {
+  return fetchJSON(`/projects/${encodeURIComponent(projectName)}/schedules/${scheduleId}`, {
+    method: 'PATCH',
+    body: JSON.stringify(update),
+  })
+}
+
+export async function deleteSchedule(
+  projectName: string,
+  scheduleId: number
+): Promise<void> {
+  await fetchJSON(`/projects/${encodeURIComponent(projectName)}/schedules/${scheduleId}`, {
+    method: 'DELETE',
+  })
+}
+
+export async function getNextScheduledRun(projectName: string): Promise<NextRunResponse> {
+  return fetchJSON(`/projects/${encodeURIComponent(projectName)}/schedules/next`)
+}

ui/src/lib/timeUtils.ts

@@ -0,0 +1,155 @@
+/**
+ * Time Zone Utilities
+ * ====================
+ *
+ * Utilities for converting between UTC and local time for schedule management.
+ * All times in the database are stored in UTC and displayed in the user's local timezone.
+ */
+
+/**
+ * Convert "HH:MM" UTC time to user's local time.
+ * @param utcTime Time string in "HH:MM" format (UTC)
+ * @returns Time string in "HH:MM" format (local)
+ */
+export function utcToLocal(utcTime: string): string {
+  const [hours, minutes] = utcTime.split(':').map(Number)
+  const utcDate = new Date()
+  utcDate.setUTCHours(hours, minutes, 0, 0)
+
+  const localHours = utcDate.getHours()
+  const localMinutes = utcDate.getMinutes()
+
+  return `${String(localHours).padStart(2, '0')}:${String(localMinutes).padStart(2, '0')}`
+}
+
+/**
+ * Convert "HH:MM" local time to UTC for storage.
+ * @param localTime Time string in "HH:MM" format (local)
+ * @returns Time string in "HH:MM" format (UTC)
+ */
+export function localToUTC(localTime: string): string {
+  const [hours, minutes] = localTime.split(':').map(Number)
+  const localDate = new Date()
+  localDate.setHours(hours, minutes, 0, 0)
+
+  const utcHours = localDate.getUTCHours()
+  const utcMinutes = localDate.getUTCMinutes()
+
+  return `${String(utcHours).padStart(2, '0')}:${String(utcMinutes).padStart(2, '0')}`
+}
+
+/**
+ * Format a duration in minutes to a human-readable string.
+ * @param minutes Duration in minutes
+ * @returns Formatted string (e.g., "4h", "1h 30m", "30m")
+ */
+export function formatDuration(minutes: number): string {
+  const hours = Math.floor(minutes / 60)
+  const mins = minutes % 60
+
+  if (hours === 0) return `${mins}m`
+  if (mins === 0) return `${hours}h`
+  return `${hours}h ${mins}m`
+}
+
+/**
+ * Format an ISO datetime string to a human-readable next run format.
+ * Uses the browser's locale settings for 12/24-hour format.
+ * @param isoString ISO datetime string in UTC
+ * @returns Formatted string (e.g., "22:00", "10:00 PM", "Mon 22:00")
+ */
+export function formatNextRun(isoString: string): string {
+  const date = new Date(isoString)
+  const now = new Date()
+  const diffMs = date.getTime() - now.getTime()
+  const diffHours = Math.floor(diffMs / (1000 * 60 * 60))
+
+  if (diffHours < 24) {
+    // Same day or within 24 hours - just show time
+    return date.toLocaleTimeString([], {
+      hour: 'numeric',
+      minute: '2-digit'
+    })
+  }
+
+  // Further out - show day and time
+  return date.toLocaleString([], {
+    weekday: 'short',
+    hour: 'numeric',
+    minute: '2-digit'
+  })
+}
+
+/**
+ * Format an ISO datetime string to show the end time.
+ * Uses the browser's locale settings for 12/24-hour format.
+ * @param isoString ISO datetime string in UTC
+ * @returns Formatted string (e.g., "14:00", "2:00 PM")
+ */
+export function formatEndTime(isoString: string): string {
+  const date = new Date(isoString)
+  return date.toLocaleTimeString([], {
+    hour: 'numeric',
+    minute: '2-digit'
+  })
+}
+
+/**
+ * Day bit values for the days_of_week bitfield.
+ */
+export const DAY_BITS = {
+  Mon: 1,
+  Tue: 2,
+  Wed: 4,
+  Thu: 8,
+  Fri: 16,
+  Sat: 32,
+  Sun: 64,
+} as const
+
+/**
+ * Array of days with their labels and bit values.
+ */
+export const DAYS = [
+  { label: 'Mon', bit: 1 },
+  { label: 'Tue', bit: 2 },
+  { label: 'Wed', bit: 4 },
+  { label: 'Thu', bit: 8 },
+  { label: 'Fri', bit: 16 },
+  { label: 'Sat', bit: 32 },
+  { label: 'Sun', bit: 64 },
+] as const
+
+/**
+ * Check if a day is active in a bitfield.
+ * @param bitfield The days_of_week bitfield
+ * @param dayBit The bit value for the day to check
+ * @returns True if the day is active
+ */
+export function isDayActive(bitfield: number, dayBit: number): boolean {
+  return (bitfield & dayBit) !== 0
+}
+
+/**
+ * Toggle a day in a bitfield.
+ * @param bitfield The current days_of_week bitfield
+ * @param dayBit The bit value for the day to toggle
+ * @returns New bitfield with the day toggled
+ */
+export function toggleDay(bitfield: number, dayBit: number): number {
+  return bitfield ^ dayBit
+}
+
+/**
+ * Get human-readable description of active days.
+ * @param bitfield The days_of_week bitfield
+ * @returns Description string (e.g., "Every day", "Weekdays", "Mon, Wed, Fri")
+ */
+export function formatDaysDescription(bitfield: number): string {
+  if (bitfield === 127) return 'Every day'
+  if (bitfield === 31) return 'Weekdays'
+  if (bitfield === 96) return 'Weekends'
+
+  const activeDays = DAYS.filter(d => isDayActive(bitfield, d.bit))
+  return activeDays.map(d => d.label).join(', ')
+}

ui/src/lib/types.ts

@@ -489,3 +489,53 @@ export interface SettingsUpdate {
   testing_agent_ratio?: number
   count_testing_in_concurrency?: boolean
 }
+
+// ============================================================================
+// Schedule Types
+// ============================================================================
+
+export interface Schedule {
+  id: number
+  project_name: string
+  start_time: string      // "HH:MM" in UTC
+  duration_minutes: number
+  days_of_week: number    // Bitfield: Mon=1, Tue=2, Wed=4, Thu=8, Fri=16, Sat=32, Sun=64
+  enabled: boolean
+  yolo_mode: boolean
+  model: string | null
+  max_concurrency: number // 1-5 concurrent agents
+  crash_count: number
+  created_at: string
+}
+
+export interface ScheduleCreate {
+  start_time: string      // "HH:MM" format (local time, will be stored as UTC)
+  duration_minutes: number
+  days_of_week: number
+  enabled: boolean
+  yolo_mode: boolean
+  model: string | null
+  max_concurrency: number // 1-5 concurrent agents
+}
+
+export interface ScheduleUpdate {
+  start_time?: string
+  duration_minutes?: number
+  days_of_week?: number
+  enabled?: boolean
+  yolo_mode?: boolean
+  model?: string | null
+  max_concurrency?: number
+}
+
+export interface ScheduleListResponse {
+  schedules: Schedule[]
+}
+
+export interface NextRunResponse {
+  has_schedules: boolean
+  next_start: string | null  // ISO datetime in UTC
+  next_end: string | null    // ISO datetime in UTC (latest end if overlapping)
+  is_currently_running: boolean
+  active_schedule_count: number
+}