PreCompact Hook
- Entity ID:
ent-20260419-e3e3d377ce8c - Type:
concept - Scope:
shared - Status:
active - Aliases: pre-compact hook, precompact lifecycle hook
Description
New lifecycle hook added in v2.1.105. Fires before Auto Compact; can return {"decision":"block"} or exit code 2 to prevent compaction entirely. Critical for long-running agentic workflows where mid-task context loss breaks the job.
Key claims
- PreCompact hook can block compaction
Relations
- PreCompact Hook --[blocks]--> 5-Stage Compression Pipeline
- PreCompact Hook --[implements]--> Hooks System