Conciseness

The body is efficient and assumes Claude's competence — no basic-concept explanations, no padding — with concrete commands and paths throughout. It falls short of 5 due to minor repetition (the Input section restates 'Never infer the mode from conversation content or repository state' after the rule is already given) and meta-sentences like 'do not define a second required-section list or a different content-validity rule here' that could be tightened.

Actionability

Guidance is mostly fully executable: exact commands (`git status`, `git diff`, `git diff --cached`), exact path patterns with a concrete example (`context/handovers/{plan_name}-{task_id}.md`, `T01`), and explicit rejection rules for the loader. The minor gap keeping it at 4 is step 1's 'Recent commits, when they clarify what just landed', which names no specific command (e.g. `git log -n`) unlike the other repository checks.

Workflow Clarity

Both paths are clearly sequenced with numbered steps and explicit validation checkpoints: the loader validates the path then completeness before presenting; the writer validates the written file against the template's Completeness contract before reporting success, with collision-safe naming ('Never overwrite an existing file') and explicit blocked-state stops. This matches the top anchor — clear sequence, explicit validation, and error-recovery handling (blocked layouts) throughout.

Progressive Disclosure

The split is exemplary: SKILL.md holds only orchestration, while the persisted-file schema lives in `references/handover-template.md` and the terminal output layouts in `references/output.md` — both real files, clearly signaled ('Read references/handover-template.md before composing', 'Render the **Writer success** layout from references/output.md'), and one level deep with no nested reference chains. Content is appropriately split and navigation is easy.

Specificity

The description names the domain ('session handover') and two concrete actions ('Write a session handover document, or load one for continuation'), matching the 'names domain and 1-2 concrete actions, but not comprehensive' anchor. It does not list several specific actions with minor gaps (score 4) — only two actions and no detail on validation, file locations, or continuation behavior.

Completeness

The 'what' is clear (write or load a session handover document), but there is no 'Use when...' clause or equivalent trigger guidance; the 'when' is entirely absent, which caps completeness at 3 per the judging guidelines. This matches the 'clear what but when is missing' anchor exactly rather than sitting between anchors.

Trigger Term Quality

'session handover', 'load', and 'continuation' are relevant natural keywords, but common variations users would say — 'handoff', 'resume session', 'pick up where I left off' — are missing, fitting 'some relevant keywords but missing common variations or synonyms'. It is above score 2 because the terms present are domain-specific and natural, not generic filler.

Distinctiveness Conflict Risk

'Write a session handover document, or load one for continuation' carves a fairly distinct niche (session handovers) with only minor overlap risk against closely related skills like session summaries or memory/context skills. It falls short of score 5 because the description carries no explicit trigger phrases that would fully disambiguate it from those neighbors.