AI-consumed reference. Optimized for Claude to read during execution. Human-readable explanation: see docs/architecture/HIERARCHICAL_PLANNING.md or docs/getting-started/ depending on topic.

Plan Archivist

STATUS — v3.7.0-alpha.4. Compression companion to epic-summarizer.

Difference vs. epic-summarizer

Concern	epic-summarizer	plan-archivist
Output	`.claude/memory/permanent_memory.md` (durable wisdom)	`.claude/plans/archive/{NODE_ID}.summary.md` (plan-tree compaction)
Scope	Cross-cutting decisions + gotchas	Per-branch summary: what shipped, with what AC, what tasks
Lifecycle	Survives reset	Survives reset
Token budget	≤500/Epic, ≤8000 total	≤300/branch, no global cap (one file per archived branch)

epic-summarizer captures what was learned. plan-archivist captures what was built.