Conciseness

The body is lean and assumes Claude's competence: no concepts are explained that Claude already knows, every sentence is directive ("Read the resolved file completely. Parse all sections as the baseline for the merge."), and the merge rules are compressed into a table. This matches the 5 anchor (every token earns its place); the only candidate for trimming is the two-line attribution footer, which is too minor to drop it to the 4 anchor's "minor instances of over-explanation".

Actionability

Guidance is concrete and executable for the main path: a three-tier resolution order, a literal fallback path pattern ("claudedocs/handoffs/handoff_YYYYMMDD_HHMMSS.md"), per-section rules like "Never remove entries. Include commit hashes", and a specific confirmation checklist. It sits at the 4 anchor rather than 5 because of minor gaps: the fallback path never specifies what content a newly created handoff contains, and "record a new contract revision" assumes unstated process knowledge. It is well above 3 since nothing is pseudocode or merely descriptive.

Workflow Clarity

Four clearly sequenced steps with an explicit post-save verification checklist in Step 4 ("File path updated / How many new Work Done items were added / The updated Status"), and the risky rewrite is guarded by the strict append-only rule. This matches the 4 anchor (clear sequence, most checkpoints present, minor validation gaps); it is not 5 because there is no error-recovery feedback loop (e.g. re-verify that no prior Work Done entries were lost after rewriting), and not 3 because a concrete checkpoint step is explicitly present.

Progressive Disclosure

The skill is short (~43 lines), self-contained with no bundle files, and organized into four well-labeled step sections plus a rules table, which per the simple-skill note could merit a 5. It lands at the 4 anchor instead because the footer points to "the Handoff Triad pattern documented in this guide's Session Handoff Pattern section" — a reference to material not present in the skill or any bundle file, a minor organization/navigation gap; it is far above the 3 anchor since nothing that belongs in a separate file is inlined.

Specificity

The description enumerates multiple concrete actions with comprehensive coverage of the skill's behavior: "Update an existing handoff document with current session progress", per-section merge rules ("append-only for Work Done (never deletes history), replace for Status and Next Steps, merge for Files and Discoveries"), and the fallback "Falls back to creating a new handoff if no source file is found". This matches the 5 anchor (multiple specific concrete actions, comprehensive) rather than 4, since no capability of the skill is left uncovered; it is well above the 3 anchor's "1-2 concrete actions".

Completeness

The "what" is clearly and specifically stated (update with merge rules plus fallback), but there is no "Use when..." clause or equivalent explicit trigger guidance — the description never states when to invoke it. Per the judging guideline, a missing 'Use when' clause caps completeness at 3; it is not 2 because the "what" half is fully clear, and not 4 because "when" is entirely absent rather than just imprecise.

Trigger Term Quality

"handoff document" and "session progress" are natural phrases a user would say, repeated via "handoff" in several forms. It falls at the 4 anchor (good keyword coverage, a few natural terms missing) rather than 5 because common synonyms like "session summary", "context handoff", or "standup/continuation notes" are absent, though no file extensions are relevant to this domain.

Distinctiveness Conflict Risk

"Update an existing handoff document" carves out a clear niche distinct from generic document skills, but the fallback "Falls back to creating a new handoff if no source file is found" overlaps with a sibling handoff-creation skill (the body references the Handoff Triad with /handoff:resume). This matches the 4 anchor (mostly distinct, minor overlap risk with closely related skills); it is not 5 because that overlap exists, and not 3 because the scope is far narrower than "Works with document files".