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wrg32786wrg32786/aigent-os/skills/context-hygiene/SKILL.md

context-hygiene

Skill25 starsChanged 7 days agoMITView on GitHub

Archive and trim ACTIVE_PRIORITIES and dated SESSION_LOG entries. Use when cleaning active priorities, trimming session logs, or running context hygiene.

5 other projects use a version of this.

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The file

We split this skill into the rules it gives an agent

3 rules. 0 are common, 1 is distinctive, and 2 are very specific to this project.

  • 0

    Common

    Most of the 5 edited versions we read keep these.

  • 1

    Distinctive

    This author's own choices. Worth a look.

  • 2

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Distinctive:

    Keep the newest five live dated blocks.

    line 49
  2. Very specific:

    no embedded ## Archived section.

    line 66
  3. Very specific:

    After writing, re-run the checker.

    line 78

“Common” is measured: kept by at least 6 in 10 of the 5 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

/context-hygiene

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.

Precondition

  1. Read vault/memory/SESSION_LOG.md and vault/memory/ACTIVE_PRIORITIES.md.
  2. Hash both exact byte streams with SHA-256.
  3. Run:
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.

Session Log archive

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:

  • Objective
  • Completed
  • Decisions
  • Open threads
  • Next action

Archival rules:

  • Keep the newest five live dated blocks.
  • Move older whole blocks to vault/memory/SESSION_LOG_ARCHIVE_<YYYY-MM-DD>.md.
  • Preserve source text and order.
  • Preserve frontmatter, title, schema guidance, and archive links.
  • Dedupe by exact dated heading plus block hash.
  • Refuse a block whose boundary cannot be determined without judgment.

Active Priorities archive

The mechanically checkable live shape contains:

  • exactly one ## Operating Mode: <mode> heading;
  • one to five live bullet priorities under ## Tier 1, ## Tier 2, or ## Tier 3 headings;
  • no placeholder priority;
  • one valid Last reviewed: YYYY-MM-DD line; and
  • no embedded ## 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.

Compare-and-swap

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.

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