Conciseness

The body is mostly efficient and does not explain concepts Claude already knows, but the MySQL-vs-PostgreSQL routing guidance is repeated across Overview, Quick routing, and Best practices, which is padding that could be tightened. It is not a 4 because the repeated routing sections are noticeable redundancy, and not a 2 because there is no concept over-explanation or heavy fluff.

Actionability

Provides concrete tool calls with parameters (manageDataModel(action="list"|"get"|"docs"), modifyDataModel), a complete copy-paste Mermaid example, and a concrete type-mapping table. It is not a 5 because tool-call signatures are described in prose rather than as fully-specified executable call examples with all arguments, leaving minor gaps.

Workflow Clarity

'How to use this skill' gives a clear 4-step sequence with validation checkpoints (validate names/fields/relationships before modeling, check constraints before publishing) and a minimal checklist. It is not a 5 because there is no explicit validate->fix->retry feedback loop for the publish step, and not a 3 because validation checkpoints are present rather than absent.

Progressive Disclosure

The body is well-organized with clearly signaled sections (Activation Contract, Quick routing, Mermaid rules, example, tool usage) and only one-level-deep external sibling-skill references via relative paths; no nested reference chains. It is not a 5 because the type-mapping table and detailed Mermaid conventions could arguably live in a dedicated reference file, leaving a minor organization gap.

Specificity

Names the domain ('complex data modeling') but lists no concrete actions the skill performs — it spends most of its length routing to other tools rather than describing what it does, matching 'Names the domain but actions are minimal or generic.' It is not a 3 because no concrete actions (e.g. generate Mermaid class diagrams, publish models) are stated, and not a 1 because the domain is at least named.

Completeness

The 'what' is vague ('complex data modeling') and there is no positive 'when to use this' clause — the description only gives negative routing ('use X for simple tasks'). Per the guideline, a missing explicit 'Use when...' trigger caps completeness at 3, and the weak 'what' pulls it further to 'Has a vague what and no when.' It is not a 3 because the 'what' is not clear and 'when' is absent rather than merely implied.

Trigger Term Quality

Contains relevant keywords a user might say ('data modeling', 'MySQL table creation', 'PostgreSQL', 'CloudBase PG', 'schema work') but leans on technical/routing jargon and misses common natural variations. It is not a 4 because the phrasing is tool-routing rather than the natural trigger phrases a user would utter, and not a 2 because several genuinely relevant domain terms are present.

Distinctiveness Conflict Risk

It explicitly distinguishes this skill from siblings (relational-database-tool, postgresql-development) and carves a narrow niche (complex modeling), minimizing wrong-skill triggering. It is not a 5 because the niche is stated abstractly rather than via distinct concrete triggers, and not a 3 because the routing language makes overlap risk genuinely low.