Conciseness

The ~29-line body contains zero padding and no explanations of concepts Claude already knows — every line is a directive ("Re-read the user's full request...", "Map every acceptance criterion to authoritative evidence"). This matches the 'lean and efficient; every token earns its place' anchor exactly, and is not merely the 4 anchor because there is nothing to trim.

Actionability

The guidance is concrete and executable for an instruction-only skill: enumerated check surfaces ("missed consumers, output formats, filters, docs, skills, schemas, CI scripts, companion repositories"), four explicit lesson filters, and a storage-order hierarchy. It stops short of 5 because directives like "Re-run any weak or stale verification" leave the judgment of weak/stale undefined — a minor gap rather than the full copy-paste-ready coverage of the 5 anchor.

Workflow Clarity

The 8-step sequence is clearly ordered with explicit validation checkpoints (step 2 maps criteria to evidence, step 4 re-runs weak verification, step 6 verifies branches/worktrees/artifacts are clean) and a feedback loop (fix in-scope omissions, then verify). This matches the 5 anchor's 'clear sequence with explicit validation steps; feedback loops; checklists' — the skill is itself a validation checklist, so it exceeds the 4 anchor.

Progressive Disclosure

The skill is under 50 lines with a single coherent procedure and no need for external references, and no bundle files exist to misroute. Per the rubric's simple-skill guidance, well-organized short content with no buried or nested references scores 5.

Specificity

"Audit the current Fallow session for missed work, incomplete verification, stale documentation, companion drift, or cleanup" names the domain and enumerates five specific audit targets, matching the 'several specific actions; minor gaps' anchor. It stays at 4 rather than 5 because there is only one verb ("Audit") rather than multiple distinct concrete actions.

Completeness

The description clearly answers "what" (audits a Fallow session for five concrete failure modes) but contains no "Use when..." clause or equivalent explicit trigger guidance, which the judging guidelines cap at 3. It is not a 4 because the "when" is not even weakly implied by any phrase in the text.

Trigger Term Quality

Terms like "audit", "missed work", "cleanup", and "stale documentation" are natural phrases a user might say, giving good keyword coverage. A few natural variations (e.g. "final check", "before finishing", "did I miss anything") are missing, so it falls between the 3 and 5 anchors — noticeably above the midpoint.

Distinctiveness Conflict Risk

"Fallow session" is a distinct niche and the audit targets (companion drift, private/public boundaries) are specific, so it is mostly distinct from general skills. It is not a 5 because "audit"/"verification"/"cleanup" could still overlap with generic review and verify skills.