Conciseness

Every section carries API-specific knowledge Claude cannot already know — the custom auth header and its disambiguation from Bearer tokens, the exact endpoint, the parameter constraints ('Lowercase is rejected', '≤ 1024 chars'), and the degraded-snapshot semantics of 'upstreamUnavailable: true'. Nothing explains general concepts, and there is no padding, matching the 'every token earns its place' anchor; even 'fetchedAt is Unix epoch milliseconds' earns its place by disambiguating units.

Actionability

The worked curl example is copy-paste executable ('curl -s --get -H "X-WorldMonitor-Key: $WM_API_KEY" ... --data-urlencode country_code=SD | jq ...'), the endpoint and auth are given verbatim, the parameter table specifies shapes and edge behavior, and the error section prescribes the 429 retry-with-backoff response. This meets the 'fully executable, copy-paste ready' anchor; the only nit — no worked example of the optional jmespath projection — does not undermine the common case, so anchor 4's 'minor gaps' framing is too weak.

Workflow Clarity

This is a simple single-task skill (one authenticated GET), and the action is unambiguous: obtain key → call with uppercase ISO code → interpret fields, with error recovery guidance (400/401/429 with backoff) and a validation-style checkpoint in the 'upstreamUnavailable: true means treat as no data, not no risk' rule. Per the simple-skill exception the single action can score 5; no destructive or batch operation is involved, so no cap applies.

Progressive Disclosure

The body is compact, sectioned, and self-contained for a single-endpoint skill — no bundle files exist, and nothing here warrants them. The 'References' section signals one-level-deep external pointers (live CII rankings, the OpenAPI operation 'GetCountryRisk', the auth matrix), and the abbreviated response shape with '"…": "…"' correctly defers full schema detail to the OpenAPI file. Navigation is easy, matching the anchor-5 'clear overview with well-signaled one-level-deep references' description.

Specificity

The description names the exact artifacts retrieved — 'Country Instability Index (CII) stress score, its travel advisory level, and whether sanctions are active' — plus the input constraint 'by ISO code', which is highly concrete. It falls just short of anchor 5 because the only action verb is 'Retrieve'; there are no secondary actions (e.g., compare, monitor, summarize), leaving minor coverage gaps.

Completeness

Both halves are explicit: what — 'Retrieve composite country risk intelligence — CII stress score, travel advisory level, and active sanctions exposure — for one country by ISO code' — and when — 'Use when the user asks how risky or unstable a country is right now' with a concrete trigger phrase. This mirrors the anchor-5 example's structure and is not merely implied, ruling out anchor 4.

Trigger Term Quality

'Use when the user asks how risky or unstable a country is right now' supplies natural phrasings ('how risky', 'unstable', 'right now') a user would actually say. A few common variants are missing — e.g. 'is it safe to travel there', 'travel advisory', 'is this country under sanctions' — so it matches anchor 4 rather than the comprehensive synonym coverage of anchor 5.

Distinctiveness Conflict Risk

The 'current risk / right now' framing carves a clear niche distinct from a narrative brief or an events feed. However, a sibling skill (fetch-resilience-score, per the body) also answers 'how risky is this country' from a structural angle, so there is minor overlap risk with a closely related skill — anchor 4 — rather than the minimal conflict risk of anchor 5.