Conciseness

The body is lean and assumes Claude's competence — it explains no concepts Claude already knows, and every section is a command or a rule. The only near-redundancy is repeating `mobilebuildmcp --help` twice in Step 1, which is an intentional re-check after install. Not 4 because there is no padded or over-explained passage to trim.

Actionability

Most commands are executable as written (`mobilebuildmcp --help`, `brew tap`/`brew install`, `npm install -g mobilebuildmcp@latest`), but the discovery block uses placeholders (`<workflow>`, `<tool>`) and no concrete example of a real command (e.g. an actual `build-and-run` invocation) is shown. Not 5 because anchor 5 wants copy-paste-ready examples covering common cases, and the common case (build/run an app) is never instantiated; not 3 because the guidance given is directly executable, not pseudocode.

Workflow Clarity

Steps 1–3 are clearly sequenced, installation includes an explicit re-check checkpoint ('Re-check after install'), and the Exit Criteria section acts as a completion checklist. Not 5 because there is no error-recovery feedback loop (e.g. what to do when a build or test fails or the install command errors); not 3 because the sequence and key checkpoints are explicit, not merely implicit.

Progressive Disclosure

The body is short (~60 lines), single-purpose, and cleanly sectioned with no bundle files in references/, scripts/, or assets/ — detail is delegated one level deep to the CLI's own `--help` output, which is the ideal disclosure pattern for a skill that fronts a self-documenting CLI. Per the rubric's simple-skill guidance, well-organized sections with no need for external references score 5.

Specificity

The description names the domain ('MobileBuildMCP CLI') and surfaces six concrete action terms (build, test, run, debug, log, UI automation), but all of them sit inside the 'Use when' trigger clause — the what-it-does portion is only the generic phrase 'Official skill for the MobileBuildMCP CLI', which states no capability. Not 4 because anchor 4 expects specific actions presented as the skill's capabilities, not only as trigger scenarios.

Completeness

An explicit 'Use when doing iOS… work (build, test, run, debug, log, UI automation)' clause answers 'when' concretely, and 'Official skill for the MobileBuildMCP CLI' provides a 'what', but the what is thin — it never states what the skill does with the CLI. Not 5 because anchor 5 requires both halves to be explicit and concrete.

Trigger Term Quality

Natural user phrasings like 'iOS/macOS/watchOS/tvOS/visionOS work', 'build, test, run, debug, log, UI automation' give good keyword coverage. Not 5 because common variations users would actually say — 'Xcode', 'simulator', 'device', 'iPhone app' — are missing.

Distinctiveness Conflict Risk

Scoping to Apple platforms plus a named CLI gives a clear niche with distinct triggers. Not 5 because generic verbs like 'build, test, run, debug' could also match a general Xcode/iOS-development skill, leaving minor overlap risk.