Conciseness

The body is ~30 lines with zero padding: 'Pick the smallest correct Zoom surface for the job, then layer in only the supporting pieces that are actually required' plus a decision table, three guardrails, and a four-item output list. Every line is decision-relevant and nothing explains concepts Claude already knows — matching anchor 5 ('lean and efficient; every token earns its place').

Actionability

The decision table gives concrete problem-type→surface mappings, and guardrails give explicit rules ('Do not recommend Video SDK when the user actually needs Zoom meeting semantics'), so the guidance is actionable without code. It falls short of anchor 5 because 'What To Produce' specifies deliverable categories ('Immediate next implementation step', 'Minimum supporting components') but not what a concrete deliverable looks like, leaving minor gaps.

Workflow Clarity

The decision flow is coherent and unambiguous for most inputs: match problem type in the table, apply guardrails, produce the four listed outputs. It scores 4 rather than 5 because several rows present alternatives without a tie-breaker ('webhooks or websockets', 'contact-center or virtual-agent', 'rtms plus meeting-sdk when needed' — 'when needed' is undefined), leaving minor gaps in checkpoint criteria. No validation loop is required since this is a non-destructive decision skill.

Progressive Disclosure

The skill is under 50 lines, well-organized into sections, and keeps detail out of SKILL.md by linking each Zoom surface to its own skill one level deep ('[rest-api](../rest-api/SKILL.md)', '[meeting-sdk](../meeting-sdk/SKILL.md)') — clear overview, well-signaled one-level references, easy navigation, matching anchor 5. No bundle directories exist, and none are needed at this size.

Specificity

The entire description is 'Use when choosing architecture.' — no concrete actions or capabilities are stated at all, only an abstract trigger. It matches anchor 1 ('entirely vague; no concrete actions; pure abstract language'); it cannot be a 2 because it does not even name the domain (Zoom) or a minimal action.

Completeness

Only a vague 'when' is present ('Use when choosing architecture') with no 'what' whatsoever — matching anchor 2 ('only when is present without what'). It is not a 3 because the 'when' itself is too vague to weakly imply a what, and not a 1 because a trigger clause does exist.

Trigger Term Quality

The only keyword is the generic phrase 'choosing architecture'; natural terms a user would actually say ('Zoom', 'REST API', 'webhooks', 'Meeting SDK', 'which Zoom surface') are entirely absent. This sits at anchor 2 (one or two generic keywords, missing the natural phrases users say) rather than 1, because 'choosing architecture' is at least a plausible trigger phrase and not pure technical jargon.

Distinctiveness Conflict Risk

'Choosing architecture' is very broad and would collide with any software/system architecture discussion — high overlap risk (anchor 2). It is not a 1 because the phrase is at least scoped to an architecture-selection decision rather than any request ('helps with code and documents').