Unified write tool: record a decision, constraint, or pipeline. Required fields by kind (validated server-side): decision needs summary/problem/why_chosen; constraint needs rule/reason; pipeline needs name/purpose/steps.

Retrieve relevant project context ranked by relevance within a token budget. Pass an id to fetch a single entry at full fidelity.

Structured field filter — exact AND-combined predicates, NOT relevance search. Use when you know the field values (e.g. absolute constraints scoped to 'hooks/'). Stable ID order, no ranking; empty is a real answer. Includes superseded/deprecated unless you filter status.

The single orienting call for conversation start: counts by kind and status, active constraints (compact), recent decisions, the full id list, and the human-readable summary — all in one response.

Update an existing decision, pipeline, or constraint by ID. Refreshes verified_at timestamp automatically.

Mark an entry as deprecated. For decisions, optionally link to the superseding decision.

Find entries not verified in N days. Returns them for review — does not delete. Call periodically to keep context fresh.

Check if the last compaction lost or modified any context entries. Surface discrepancies to the user before proceeding.

Scan entries for quality issues (legacy schema, thin reasoning, missing tags, isolated entries) and return them for enrichment via update_entry.

Regenerate DECISIONS.md from the decisions store — a derived, read-only projection; overwrites the file whole.

Re-surface the project's constraints only (not the full store) when a long session has buried the ones injected at start. Same block as session start.

Write the whole store to a compressed, committable snapshot at .context-keeper/memory.json.gz (next to the project) and add a .gitattributes merge=ours guard. For sharing project memory with a team via git. Committing it is opt-in. Non-destructive to the working store.

Import the committed .context-keeper/memory.json.gz snapshot into the working store. Non-destructive: a store that already has entries is left untouched. Runs automatically on first use when the store is empty.

Sync entries with the remote store. op='pull' merges remote entries into local (newest wins); op='backfill' pushes all local entries to remote (upsert). No-op if remote unconfigured.