Conciseness

The body assumes Claude's competence throughout — it never explains what ADRs, commit bodies, or git archaeology are — and every section carries operational content. Minor trimmable instances remain: "repowise decision candidates --format json" is described twice (in the no-query section and again in Reviewing candidates), and the Reviewing candidates paragraph is a dense command run-on that could be tightened.

Actionability

Fully executable guidance: literal signatures for all four get_why modes ("get_why(query=\"why is auth using JWT?\")", "get_why(query=\"src/auth/service.py\")", target-anchored form, no-arg dashboard) and copy-paste CLI commands with exact flags (--agent, --evidence, --format json, --affects). The common cases are all covered with concrete syntax.

Workflow Clarity

The architectural-change workflow is numbered with explicit branching and checkpoints (decisions found → "present them to the user before proceeding"; none found → "proceed but note"), recording is framed with its safety invariant ("never governs until accepted, so recording is safe"), and failure handling is covered ("If the repository turned agent acceptance off, the confirm is refused; leave it for a person"). No destructive or batch operations are involved that would demand validation loops.

Progressive Disclosure

No bundle files exist, and the ~62-line body is well organized into scenario-based sections ('When the user asks...', 'When about to make an architectural change', 'Recording new decisions'). The dense inline command catalog in 'Reviewing candidates' (confirm/dismiss/merge/deprecate/reaffirm with all their flags) is reference-grade material that could live in a separate file — a minor organization gap that keeps this below a 5.

Specificity

The domain is precisely named ("questions about WHY code is built a certain way", "design rationale", "architectural changes") but the description never states the concrete actions the skill performs (e.g., searching decision records, surfacing a decision-health dashboard, recording new decisions) — those appear only in the body. This matches 'names domain and 1-2 concrete actions, but not comprehensive' rather than 'lists several specific actions'.

Completeness

The 'when' is explicit and multi-triggered, but the 'what' is only implicitly conveyed through the domain framing rather than a stated capability. This sits between 'clear what, weak when' (3) and 'both fully explicit' (5): both are present, with the 'what' side needing more explicitness.

Trigger Term Quality

Covers the natural phrasings a user would actually say ("why code is built a certain way", "design rationale", "restructuring", "choosing between approaches") plus literal decision-signal markers ("WHY:", "DECISION:", "TRADEOFF:", "ADR:") and the ".repowise/ directory" scope — comprehensive synonym and signal coverage for the niche.

Distinctiveness Conflict Risk

Triggers are gated on a Repowise-indexed codebase (".repowise/ directory exists") and distinctive decision-marker strings, giving a clear niche with minimal overlap risk — even closely related code-explanation skills would not trigger on these signals.