The description names the domain (schema markup and structured data) and mentions some actions ('add, fix, or optimize'), but doesn't list multiple specific concrete actions like generating JSON-LD snippets, validating existing markup, or implementing specific schema types.

Clearly answers both 'what' (add, fix, or optimize schema markup and structured data) and 'when' (explicit 'Use when' clause with specific trigger terms). Also includes a helpful cross-reference to the seo-audit skill for disambiguation.

Excellent coverage of natural trigger terms users would say: 'schema markup,' 'structured data,' 'JSON-LD,' 'rich snippets,' 'schema.org,' 'FAQ schema,' 'product schema,' 'review schema,' and 'breadcrumb schema.' These are all terms users would naturally use when needing this skill.

Very distinct niche focused specifically on schema markup and structured data, with explicit disambiguation from the broader seo-audit skill. The specific trigger terms like 'JSON-LD,' 'schema.org,' and various schema types make it unlikely to conflict with other skills.

The skill includes some unnecessary content like 'Core Principles' that Claude already knows (accuracy, following guidelines, validating). The 'Task-Specific Questions' section and 'Initial Assessment' are somewhat redundant. However, the reference tables and quick reference sections are reasonably efficient.

The skill provides a useful reference table and property lists, but lacks complete, executable JSON-LD examples inline. The @graph example is a skeleton with '...' placeholders rather than copy-paste ready code. It references 'references/schema-examples.md' for complete examples but that file doesn't exist in the bundle.

There's a testing checklist and validation tools listed, but the overall workflow is fragmented across sections (Initial Assessment → Implementation → Validation) without a clear sequential process. There's no explicit feedback loop for fixing validation errors and re-testing, and the implementation section is vague (e.g., 'Component that renders schema' without concrete steps).

The skill references 'references/schema-examples.md' for complete examples, which is good progressive disclosure design, but the bundle confirms this file doesn't exist. The content itself is somewhat monolithic with sections that could be split out (the full schema types table, implementation details per platform). The structure is reasonable but the broken reference undermines it.