Conciseness

The body is lean throughout — "Follow MVI/UDF patterns", "Keep the ViewModel free of Android framework dependencies" — assuming Claude's competence with no padding or explanation of known concepts. The only trimmable element is the 2-line restated Description section, which is negligible, so it fits the 5 anchor rather than the 4.

Actionability

Concrete file paths (gradle/libs.versions.toml, AppKoinModule.kt, DesktopKoinModule.kt), copy-paste gradle commands, specific APIs (stateInWhileSubscribed, @Factory, @Single, @KoinViewModel), and a signature example make this mostly executable. It falls short of 5 because steps 2-3 (state/ViewModel and UI) give directives without any code snippet or example pattern.

Workflow Clarity

Six clearly sequenced, dependency-ordered steps with an explicit verification step including commands and conditional additions (kmpSmokeCompile, proguard keep rules, release builds). Below 5 because there is no explicit error-recovery loop (e.g., 'if spotlessCheck or detekt fails, fix and re-run') — checkpoints exist but feedback on failure is only implicit.

Progressive Disclosure

The skill is under 50 lines with no bundle files present and no need for external references, so the simple-skill exception applies: well-organized sections with clear headers (numbered workflow steps) score 5. Cross-skill pointers ("see the compose-ui skill", "see testing-ci skill") are clearly signaled inline and are not nested references.

Specificity

"The end-to-end workflow for adding a feature to Meshtastic-Android, in the order that keeps KMP source sets and the architecture intact" names the domain and one concrete action with real constraints, but does not enumerate several specific capabilities (e.g., dependency aliases, ViewModel setup, DI wiring) that a 4 would list. It is clearly above the 2 anchor, which offers only generic actions with no constraints.

Completeness

It explicitly answers what ("end-to-end workflow for adding a feature... keeps KMP source sets and the architecture intact") and when ("Use this whenever you start implementing a new feature or a sizeable behaviour change, before writing any code") with concrete trigger phrases. Not a 4, because the when-clause is already explicit and specific rather than vague or implicit.

Trigger Term Quality

"implementing a new feature" and "sizeable behaviour change" are natural phrases a user would say when needing this skill. A few natural variants ("add a screen", "new functionality") are missing, placing it just below the 5 anchor's comprehensive synonym coverage.

Distinctiveness Conflict Risk

Triggers are scoped to "Meshtastic-Android" with KMP/architecture-specific language, giving it a clear niche with minimal conflict risk against generic feature-implementation skills. No neighboring anchor fits better since even the 4 anchor admits overlap with closely related skills, which this avoids via repo-specific scoping.