Conciseness

The body is lean and assumes competence: it never explains what CPI or yields are, and every line carries operational facts (dataset table, "limit defaults to 30 and accepts 1..365", response shape, routes, auth header, error policy). This matches anchor 5 — every token earns its place; nothing matches the padding of anchors 3–4.

Actionability

Guidance is fully concrete: the tool name `get_macro_history` with server URL, a dataset table with required parameters, a copy-paste request example ("{\"dataset\":\"world-cpi\",\"country\":\"Germany\",\"limit\":12}"), exact REST routes, and the precise auth header "X-WorldMonitor-Key". Per the rubric's code_vs_instruction note, an instruction-only skill with guidance this specific is not penalized for lacking code; it matches anchor 5's 'specific examples cover the common cases'.

Workflow Clarity

The flow is sequenced with explicit checkpoints: "Read `unavailable` first", "`truncated: true` means the response is not full history", "request one country at a time and align observation dates and definitions before comparing", and the worked example ends with comparing on common dates, explaining methodology differences, and citing source labels. Retry guidance ("Respect billing denials, rate limits and `Retry-After`") covers error recovery; the destructive/batch cap does not apply to read-only retrieval, and the under-50-line simple-skill exception applies.

Progressive Disclosure

The skill is under 50 lines with no bundle files and no need for external references, and the body is cleanly sectioned (Connected plugin, REST and authentication, Errors, Content safety) with no dangling or buried references. Per the judging guidelines, this matches the simple-skill case where well-organized sections alone score 5.

Specificity

The description names concrete, specific actions — "Compare CPI, interest rates and sovereign yield histories from seeded official reports" and "preserve country provenance, index base, frequency, yield measure and missing readings" — with named objects rather than vague language. It falls short of anchor 5 because it is dominated by a single compare verb with a data-handling clause, rather than a comprehensive list of multiple distinct actions.

Completeness

Both parts are explicit: the what ("Compare CPI, interest rates and sovereign yield histories from seeded official reports") and the when ("Use for inflation or rate trends"). It matches anchor 4 rather than 5 because the when-clause omits trigger phrases for the yield datasets — a third of the skill's coverage — so the 'when' could be more explicit and specific.

Trigger Term Quality

Natural user terms are present — "inflation", "rate trends", "CPI", "interest rates", "sovereign yield" — giving good keyword coverage anchored by an explicit trigger clause. It is not 5 because common synonyms users would say are missing, such as "bond yields", "treasury yields", "yield curve", or "over time"; it is above 3 because coverage goes beyond merely relevant keywords.

Distinctiveness Conflict Risk

"CPI, interest rates and sovereign yield histories from seeded official reports" carves out a clear niche with distinct triggers and near-zero overlap with generic data or document skills. It clearly matches anchor 5's 'clear niche with distinct triggers; minimal conflict risk'.