Conciseness

Every sentence carries tool- or domain-specific information Claude cannot know (register semantics, field names, error codes, pagination blocks); there is no padding and no explanation of general concepts. Phrases like 'Every successful entry carries `provenance` (`register`, `source_url`, `retrieved_at`)' show maximal information density per token, matching anchor 5 ('lean and efficient; every token earns its place').

Actionability

The playbook maps each intent to a named tool with concrete parameters and literal example values: 'get_lr_unit with {"parcel_number": ..., "municipality": ...}', 'get_lr_unit with {"lr_unit_number": "769", "main_book_id": 21277}', 'get_parcel with source="cadastre"', 'detail = summary | ownership (default) | shares | parcels | encumbrances | full'. This matches anchor 5 ('fully executable ... specific examples cover the common cases'); the common cases (owner lookup, portfolio, unit-by-number, building parcels, possessor-vs-owner) each get explicit, directly usable instructions.

Workflow Clarity

A clear decision sequence leads with register choice ('Pick the right register (the #1 mistake to avoid)'), and error recovery is explicit: 'read the `error` and `error_type` of a failed reference instead of retrying blindly: `response_too_large` that the entry must be paged (`limit`, `offset`)'. Verification checkpoints are present throughout (check the `register` field, `area_check` mismatch flag, quote `provenance`, 'an empty answer is not proof the sheet does not exist'), satisfying anchor 5 ('explicit validation steps; feedback loops for error recovery') - the batch-lookup context does not cap the score because per-reference status/error handling is defined.

Progressive Disclosure

Sections are well-organized and scannable ('Pick the right register', 'Tool playbook', 'Response shaping', 'Notes'), matching anchor 4 ('good structure; most content appropriately placed; minor organization gaps'). It falls short of anchor 5 because nothing is split out: the parameter-level enumerations (detail levels, error_type semantics, pagination fields) and the per-tool reference material all live inline in a single 112-line file with no reference bundle, so there is no 'appropriately split' content to navigate to.

Specificity

The description enumerates six concrete actions - 'looking up parcels (čestica, k.č.) by cadastral municipality', 'finding owners (vlasnici, suvlasnički udjeli, vlastovnica / B-list)', 'possessors (posjedovni list)', 'land-registry units', 'encumbrances (teretovnica / C-list)', 'or parcel geometry' - which matches the anchor 'Lists multiple specific concrete actions; comprehensive coverage'. Anchor 4 ('minor gaps in coverage') fits worse: every major lookup task of the domain is named.

Completeness

Both questions are answered explicitly: the 'what' is the enumerated lookup actions, and the 'when' is the opening trigger clause 'Use for ANY Croatian/Serbian cadastre (katastar) or land-registry ... question'. This matches anchor 5 ('clearly and explicitly answers both what AND when with concrete trigger phrases'); anchor 4 would require the 'when' to be less explicit or specific, which it is not.

Trigger Term Quality

Natural-keyword coverage is exhaustive and includes synonyms in both English and the local languages: 'cadastre', 'katastar', 'zemljišne knjige, gruntovnica, ZK', 'čestica, k.č.', 'katastarska općina, k.o.', 'vlasnici', 'posjedovni list', 'teret'. This matches anchor 5 ('comprehensive coverage of natural terms including synonyms') rather than anchor 4, where a few natural terms would be missing.

Distinctiveness Conflict Risk

The skill occupies a clear niche - Croatian/Serbian cadastral and land-registry lookup - with domain-specific triggers (katastar, gruntovnica, k.č.) that virtually no other skill would claim, matching anchor 5 ('clear niche with distinct triggers; minimal conflict risk').