Conciseness

The body is lean — a short reading order, three routing bullets, and source links — and assumes Claude's competence rather than explaining what Zoom or Android is. The opening line "Use this skill when building Android apps with embedded Zoom meeting capabilities" restates the frontmatter description Claude already sees, a minor piece of over-explanation that could be trimmed. That places it between "lean and efficient; every token earns its place" (5) and "efficient; minor instances of over-explanation" (4).

Actionability

The routing notes give concrete, decision-level guidance ("Use default UI first for first successful join/start validation", "Move to custom UI once auth, meeting state transitions, and permissions are stable"), but the body contains no code, commands, or specific steps — it delegates all executable content to linked files, and most of those (android.md, concepts/*, examples/*, scenarios/*, troubleshooting/common-issues.md, RUNBOOK.md) do not exist in the bundle. Some concrete guidance that is incomplete and missing key details fits the score-3 anchor; it is above "high-level hints with no specific steps" (2) only because the routing decisions themselves are actionable.

Workflow Clarity

The numbered "Start Here" list gives a clear reading sequence and the routing notes add conditional gating (default UI before custom UI, stability preconditions), but validation checkpoints are only implied — the sole explicit verification resource (RUNBOOK.md, "5-minute preflight and debugging checklist") is a dangling link, and the preflight itself is never described. Steps listed with sequence present but checkpoints missing or implicit matches the score-3 anchor; it cannot reach 4 because the one named checkpoint artifact is absent.

Progressive Disclosure

The intent is good — a one-level-deep, numbered index with clearly signaled references — but scored against the actual bundle, 9+ of the ~12 referenced paths are missing: android.md, concepts/lifecycle-workflow.md, concepts/architecture.md, examples/join-start-pattern.md, scenarios/high-level-scenarios.md, troubleshooting/common-issues.md, RUNBOOK.md, ../references/signature-playbook.md, and ../../oauth/SKILL.md all dangle, leaving only the three references/*.md files real. A "Start Here" list whose first five entries are dead ends makes navigation effectively impossible, which falls below "some structure, references present" (3) into the minimal-structure/broken-navigation band (2).

Specificity

"Zoom Meeting SDK for Android native apps" names the domain and then lists multiple concrete capabilities — "embedding Zoom meetings", "default/custom UI", "PKCE + SDK auth", "join/start flows", and "Meeting SDK API integration" — giving comprehensive coverage with no padding. This matches the anchor for multiple specific concrete actions; it is not score 4 because coverage spans UI modes, auth, lifecycle, and API integration without noticeable gaps.

Completeness

The "what" is explicit ("Zoom Meeting SDK for Android native apps... default/custom UI, PKCE + SDK auth, join/start flows, and Meeting SDK API integration") and the "when" is an explicit trigger clause ("Use when embedding Zoom meetings in Android with...") enumerating concrete triggering scenarios. Both are clearly and explicitly answered with concrete trigger phrases, matching the score-5 anchor; the "when" is not merely weakly implied (score 3) nor only adequate (score 4).

Trigger Term Quality

Natural phrases like "embedding Zoom meetings in Android", "default/custom UI", and "join/start flows" are terms a developer would actually say, but coverage stops there. Missing common variations such as "video meetings", "in-app meetings", "Zoom in my app", or platform artifacts (e.g., the .aar/Gradle dependency), and "PKCE" is jargon users would rarely invoke. Good coverage with a few natural terms missing fits the score-4 anchor, clearly above "some relevant keywords but missing variations" and below comprehensive-with-synonyms.

Distinctiveness Conflict Risk

The description carves out a clear niche — the Zoom Meeting SDK specifically on Android native apps — which distinguishes it from iOS/web Meeting SDK skills, Zoom Video SDK skills, and general Android development. Trigger terms (Zoom meetings, Android, Meeting SDK) are unlikely to fire the wrong skill, matching the clear-niche/minimal-conflict anchor.