Save Session

When the user invokes /bye or "save session", you should:

Step 1: Save Session

Spawn the session-saver agent to create:

1. YAML handoff at thoughts/shared/handoffs/{date}_{topic}.yaml
2. Quick state files in .claude/memory/

This is the unified save mechanism - one source of truth for all hooks.

Step 2: Confirm with User

After saving, show:

✓ Session saved to: thoughts/shared/handoffs/{date}_{topic}.yaml