Conciseness

Nearly every line carries project-specific knowledge Claude cannot infer (e.g., 'safeCatching {} from core:common instead of runCatching {}', 'CMP only supports %N$s and %N$d', the Crashlytics/Datadog asymmetry rules). It does not explain general concepts, but at ~150 lines / 18KB some prose could be trimmed — the explanatory paragraphs in defect class A and section 8's rationale run longer than the checklist items need — so 'efficient with minor instances of over-explanation' (4) fits better than 5.

Actionability

Guidance is fully concrete and executable: exact API mappings ('java.util.concurrent.locks.* -> kotlinx.coroutines.sync.Mutex'), exact file paths ('core/database/schemas/org.meshtastic.core.database.MeshtasticDatabase/<n>.json'), exact commands ('./gradlew :desktopApp:runRelease'), and canonical patterns with reference examples ('NotificationPrefsImpl.setGeofenceAlertOptIn'). As an instruction-only review skill the guidance is maximally actionable — specific examples cover the common cases, matching the 5 anchor; there are no gaps that would drop it to 4.

Workflow Clarity

The review process is clearly sequenced: 'Recurring Defect Classes (check these first)' establishes priority, then eight checklist categories, then explicit output rules ('One problem per comment', 'Problems only'), plus impact-analysis and moved-code procedures. Checkpoints exist (verify migration test accompanies schema bump, check existing review threads before adding a finding, release smoke-test), but there is no single end-to-end procedure statement tying the phases into an ordered pass, leaving minor validation/sequencing gaps — a 4 rather than 5.

Progressive Disclosure

The body is well-sectioned with headers, but no references/, scripts/, or assets/ bundle files exist — everything, including the lengthy logging/severity ruleset (section 8), the four defect-class deep dives, and Git/PR hygiene rules, is inlined in one ~150-line file. That matches 'some structure but content that should be separate is inline' (3). It is above 2 because headers and the 'check these first' framing make it navigable, and below 4 because substantial reference-worthy material (e.g., the ExpectedCondition/severity-gating rules, PR hygiene) is not split out into one-level-deep bundle files.

Specificity

Names the domain ('Meshtastic-Android change') and concrete review actions with specific convention frameworks ('KMP architecture, Compose Multiplatform and Modern Android Development conventions, starting from the four defect classes'). It names one primary action (review) with rich detail rather than a list of several distinct capabilities, so it sits between the 'several specific actions' (4) and '1-2 concrete actions' (3) anchors — clearly above 3 because the scope (defect classes, compiler/detekt/spotless blindness) is concrete, but below 5 because the four defect classes themselves are not enumerated.

Completeness

Explicitly answers 'what' ('Review a Meshtastic-Android change against KMP architecture, Compose Multiplatform and Modern Android Development conventions, starting from the four defect classes') and 'when' with a clear 'Use this for...' clause listing three concrete trigger scenarios. Both halves are explicit and concrete, matching the 5 anchor; not a 4 because the 'when' is not vague or under-specified.

Trigger Term Quality

Natural trigger phrases are present: 'any PR review', 'self-review before pushing', 'whether a change is safe to merge' — phrases users would actually say. A few common variations are missing (e.g., 'code review', 'pull request', 'review my diff'), keeping it below the comprehensive-synonym coverage of a 5 but comfortably above the sparse keyword coverage of a 3.

Distinctiveness Conflict Risk

The tight repo scoping ('Meshtastic-Android', KMP/CMP/MAD conventions) gives it a clear niche with minimal conflict risk, but the broad trigger 'Use this for any PR review' could overlap with a generic code-review skill when the repo context is absent. Mostly distinct with minor overlap risk against a closely related general review skill — a 4, not 5; clearly not a 3 since the domain lock makes confusion unlikely.