Conciseness

The body is 6 lines with zero padding or explanations of concepts Claude already knows; every line is a directive. It matches the 'lean and efficient; every token earns its place' anchor, and there is nothing below it to drift to since verbosity is the failure mode this dimension measures.

Actionability

The only concrete guidance is 'Read `.claude/skills/memory-hygiene/SKILL.md` and execute it exactly as written' plus the `invoke_subagent` substitution hint — but the entire workload is delegated to files that are not present in the bundle, so no step can actually be executed. It sits above anchor 1 (it does name specific paths and a concrete dispatch mechanism) but below anchor 3 (no executable substance exists in the skill itself).

Workflow Clarity

A rough two-step sequence exists ('Read the playbook... Then follow `.agents/rules/cog.md`'), but the actual steps are entirely deferred to missing files and there is no validation checkpoint for the archiving/rewrite operations the description promises. This matches 'rough sequence present but many gaps; steps poorly defined; validation absent' and is below anchor 3, which requires a real listed sequence with only checkpoint gaps.

Progressive Disclosure

References are one level deep and explicitly signaled, but they are dangling: the bundle contains no `.claude/`, `.agents/`, `references/`, `scripts/`, or `assets/` files, so the SKILL.md is a pass-through stub with no overview content and nothing to navigate to. It does not reach anchor 3 ('some structure... references present but not clearly signaled' is surpassed on signaling but fails on substance), and anchor 1's monolithic-wall failure mode does not apply.

Specificity

The description lists three concrete, verifiable actions — 're-verifies environment-dependent claims against the live environment', 'stamps last_verified + confidence', 'proposes archiving drifted entries' — matching 'lists several specific actions; minor gaps in coverage'. It falls short of anchor 5 because coverage is not comprehensive (e.g., what the sweep does with entries that pass verification, or how 'drift' is detected) and the opener 'Periodic trust sweep' is partially abstract.

Completeness

The 'what' is clear and concrete, but there is no 'Use when...' clause or equivalent explicit trigger guidance — 'Periodic' weakly implies a schedule but never states when Claude should invoke the skill, and the judging guideline caps completeness at 3 in that case. Not anchor 4, which requires both what and when with the 'when' merely under-specified.

Trigger Term Quality

Relevant keywords exist ('persistent memory', 'archiving', 'verified', 'confidence') but common natural phrases users would say — 'clean up memory', 'check if memories are still true', 'stale notes' — are missing, and 'trust sweep' and 'durable knowledge notes' are invented jargon rather than user vocabulary. This matches 'some relevant keywords but missing common variations or synonyms', not anchor 4 which requires good coverage of natural terms.

Distinctiveness Conflict Risk

The niche — re-verifying persistent memory/knowledge notes against the live environment — is fairly distinct, matching 'mostly distinct; minor overlap risk with closely related skills' (e.g., generic memory-keeping or note-writing skills). It does not reach anchor 5 because the description lacks distinct trigger phrases, and terms like 'knowledge notes' could overlap with broader memory-management skills.