Clarifies the three distinct lifecycle layers to prevent confusion:
- Session (Claude context): ephemeral, cycles per step
- Sandbox (worktree): persistent until nuke
- Slot (name from pool): persistent until nuke
Addresses anti-patterns like "idle polecats" and misunderstanding
what recycling means. (gt-bc6gm)
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>