Conciseness

The body is code-and-command driven with little concept explanation Claude already knows, but the Quick Reference table partially duplicates commands already shown in the phases — anchor 4's 'minor instances that could be trimmed'.

Actionability

Fully executable, copy-paste-ready guidance throughout: SQLAlchemy inspector code with expected outputs as comments, wren CLI commands, and a complete model YAML template covering the common cases — anchor 5.

Workflow Clarity

Phases 0–7 with explicit Goal statements and a validation feedback loop ('If validation fails, fix the reported issues and re-run' plus a common-errors list), plus user confirmation gates for destructive reset and inferred relationships — anchor 5.

Progressive Disclosure

Well-organized single-file skill with no bundle files to reference and a navigation table, but ~330 lines are fully inlined where model/relationship YAML detail could sit in reference files — anchor 4's 'minor organization gaps'.

Specificity

Lists several concrete actions ('schema discovery, type normalization, and MDL YAML generation using the wren CLI') with only a minor gap — validation/build steps are unmentioned — matching anchor 4 rather than 5's comprehensive coverage.

Completeness

Explicitly answers both what (multi-action generation workflow) and when ('Use when: user wants to create or set up a new MDL, onboard a new data source, or scaffold a project from an existing database') with concrete trigger phrases — anchor 5.

Trigger Term Quality

Good natural phrases users would say ('set up a new MDL', 'onboard a new data source', 'scaffold a project from an existing database'), but coverage lacks synonyms or variations beyond the core MDL vocabulary, fitting anchor 4.

Distinctiveness Conflict Risk

The Wren MDL niche is clear and mostly distinct, but 'scaffold a project from an existing database' could overlap with generic project-scaffolding skills, giving minor overlap risk per anchor 4.