pi-skill/prompts/commander/session-cleanup.md

description, argument-hint, allowed-tools

description	argument-hint	allowed-tools
Clean up stale terminal sessions - check health, remove zombies, and self-cleanup when done	[status|cleanup|terminate <session_id>|cleanup-self]	mcp__commander__commander_session_cleanup mcp__commander__commander_terminal_sessions

Commander Session Cleanup - Terminal Session Lifecycle Management

This command manages terminal session lifecycle and cleanup. Use it to:

• Check session health (stale/zombie counts)
• Clean up old sessions (>24 hours)
• Terminate specific sessions
• Clean up your own session when done

IMPORTANT: Agent Self-Cleanup Protocol

Every agent should follow this cleanup protocol:

1. At start of major work: Check session health with status operation
2. If >10 REALLY stale sessions: Clean them up proactively with cleanup
3. When work is DONE: Call terminate_self to clean up your own session

MANDATORY: Sessions older than 24 hours are REALLY stale.
Sessions older than 48 hours are ZOMBIES and MUST be cleaned.

---

Input

Operation: $ARGUMENTS

Available Operations

Operation	Example	Description
status	/session-cleanup status	Check stale session counts
cleanup	/session-cleanup cleanup	Remove sessions >24h old
cleanup 6	/session-cleanup cleanup 6	Remove sessions >6h old
terminate <id>	/session-cleanup terminate abc-123	Terminate specific session
cleanup-self	/session-cleanup cleanup-self	Terminate your own session

---

Workflow

1. Check Session Health (status)

mcp__commander__commander_session_cleanup(
  operation="status"
)

Returns:

Session Health:
- Total: 45
- Active: 12
- Stale (>6h): 8
- REALLY Stale (>24h): 15
- Zombie (>48h): 10

Recommendation: Run cleanup_stale immediately! (15 REALLY stale sessions)

2. Clean Up Stale Sessions (cleanup_stale)

mcp__commander__commander_session_cleanup(
  operation="cleanup_stale",
  min_age_hours=24,          // Default: 24 hours
  include_browser_mode=true, // Default: true
  dry_run=false              // Set true to preview
)

Returns:

Cleaned up 25 stale sessions:
- 15 sessions >24 hours old terminated
- 10 zombie sessions (>48h) terminated

Sessions cleaned:
- abc-123: claude, health-dashboard, 36h old
- def-456: cursor, commander, 48h old
...

3. Terminate Specific Session (terminate)

mcp__commander__commander_session_cleanup(
  operation="terminate",
  session_id="abc-123-def-456"
)

4. Clean Up Your Own Session (terminate_self)

Call this when your work is complete:

mcp__commander__commander_session_cleanup(
  operation="terminate_self"
)

---

Staleness Thresholds

Threshold	Time	Status	Action
Active	<6h	Healthy	None
Stale	6-24h	Warning	Monitor
REALLY Stale	24-48h	Cleanup candidate	Should clean
Zombie	>48h	Critical	MUST clean

---

Dry Run Mode

To preview what would be cleaned without actually cleaning:

mcp__commander__commander_session_cleanup(
  operation="cleanup_stale",
  dry_run=true
)

Returns:

DRY RUN - Would clean up 25 sessions:
- 15 sessions >24 hours old
- 10 zombie sessions (>48h)

No sessions were actually terminated. Run without dry_run=true to clean.

---

MCP Tool Reference

{
  name: 'commander_session_cleanup',
  description: 'Manage terminal session lifecycle and cleanup stale sessions.',
  inputSchema: {
    operation: 'status' | 'cleanup_stale' | 'terminate' | 'terminate_self',
    session_id?: string,     // Required for 'terminate'
    min_age_hours?: number,  // Default: 24
    dry_run?: boolean,       // Default: false
    include_browser_mode?: boolean  // Default: true
  }
}

---

Best Practices for Agents

On Session Startup

// Check if cleanup is needed
const status = await mcp__commander__commander_session_cleanup({
  operation: "status"
});

if (status.really_stale_24h > 10) {
  // Clean up before starting work
  await mcp__commander__commander_session_cleanup({
    operation: "cleanup_stale",
    min_age_hours: 24
  });
}

On Session Completion

// Always clean up your own session when done
await mcp__commander__commander_session_cleanup({
  operation: "terminate_self"
});

Periodic Health Check

// If session count seems high, check and clean
const sessions = await mcp__commander__commander_terminal_sessions({
  operation: "list"
});

if (sessions.length > 20) {
  // Too many sessions - clean up zombies
  await mcp__commander__commander_session_cleanup({
    operation: "cleanup_stale",
    min_age_hours: 48  // Only clean zombies
  });
}

---

Usage Examples

# Check current session health
/session-cleanup status

# Clean up all sessions older than 24 hours
/session-cleanup cleanup

# Clean up all sessions older than 6 hours
/session-cleanup cleanup 6

# Preview what would be cleaned (dry run)
/session-cleanup cleanup --dry-run

# Terminate a specific session
/session-cleanup terminate abc-123-def-456

# Clean up your own session when done
/session-cleanup cleanup-self

---

Why This Matters

Problem: Terminal sessions persist indefinitely in Commander. Without cleanup:

• Memory usage grows continuously
• 64+ stale sessions can accumulate
• Dashboard becomes cluttered
• System performance degrades

Solution: Responsible agents clean up after themselves:

1. Check session health at start
2. Proactively clean stale sessions
3. Terminate their own session when done

Goal: Keep active sessions < 20 at any time