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Nightly context trim for ACTIVE_PRIORITIES and the dated SESSION_LOG schema. Archives before removal, uses content-hash compare-and-swap, and refuses unknown shapes.
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The capsule verb, invoked explicitly — reconcile from the live memory, write a resume-ready capsule, then stop. Mid-session checkpoint or completion capsule; a rolling best-effort version of the same write also runs automatically on every Stop event via daemons/stop-capsule-writer.mjs.
The resume verb, invoked explicitly — load the newest valid capsule by created_at, re-ground against live memory, then ACT on waiting_on. Mid-session or on explicit ask; the post-clear boot fires the same procedure automatically via daemons/resume-verb.mjs.
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Canonical seven-leg nightly close-parity protocol. Eleven independently evidenced checkpoints cover synthesis, reconciliation, context hygiene, sweeps, heat, digest, runtime health, cognitive state, ledger capture/review, and vault sync.
Commit the session to durable vault memory and prepare a clean resume point
Conservative close-parity updates to GOAL_STACK, BELIEF_STATE, SELF_MODEL, and PROCEDURES. Writes only explicit or mechanically evidenced deltas; ambiguity means no write.
| name | context-hygiene |
| agent | none |
| description | Nightly context trim for ACTIVE_PRIORITIES and the dated SESSION_LOG schema. Archives before removal, uses content-hash compare-and-swap, and refuses unknown shapes. |
| allowed-tools | Read, Write, Bash |
| user-invocable | true |
| status | PRODUCTION - bounded archive writer |
| triggers | ["context hygiene","trim session log","archive old session entries","clean active priorities"] |
This is the sole bounded compaction exception to the Session Log chronicle. It runs only when invoked, never while the framework is being installed or tested against a real vault.
vault/memory/SESSION_LOG.md and
vault/memory/ACTIVE_PRIORITIES.md.node daemons/nightly-context-hygiene.mjs --root <aigent-root>
Green means no edit is needed. Red permits only the bounded archive below. Unreadable or unfamiliar content is a failure, not permission to rewrite.
The executable target schema uses newest-first dated H2 blocks. A canonical
block starts with ## YYYY-MM-DD - title and contains one nonempty occurrence
of each field:
ObjectiveCompletedDecisionsOpen threadsNext actionArchival rules:
vault/memory/SESSION_LOG_ARCHIVE_<YYYY-MM-DD>.md.The mechanically checkable live shape contains:
## Operating Mode: <mode> heading;## Tier 1, ## Tier 2, or
## Tier 3 headings;Last reviewed: YYYY-MM-DD line; and## Archived section.Move only content explicitly marked stale, superseded, or archived to
vault/memory/ACTIVE_PRIORITIES_ARCHIVE_<YYYY-MM-DD>.md. If removal requires a
human decision, preserve it and report the gate.
Immediately before each write, hash the live source again. If either hash
differs from the precondition hash, abort with CONTEXT_HYGIENE_RACE. Archive
must be durable before the source is trimmed.
After writing, re-run the checker. Only its literal
CONTEXT_HYGIENE PASS receipt may record the checkpoint green. Return archive
paths and before/after hashes in bounded detail. Never touch another memory
file.