Lists multiple specific concrete actions: 'proper resource naming, HTTP methods, status codes, and response formats' — these are distinct, concrete aspects of API design.

Clearly answers both what ('Designs RESTful APIs with proper resource naming, HTTP methods, status codes, and response formats') and when ('Use when building new APIs, establishing API conventions, or designing developer-friendly interfaces') with explicit trigger guidance.

Includes strong natural keywords users would say: 'RESTful APIs', 'API conventions', 'resource naming', 'HTTP methods', 'status codes', 'developer-friendly interfaces'. These cover common terms a user would use when requesting API design help.

Clearly scoped to RESTful API design specifically — the combination of resource naming, HTTP methods, status codes, and response formats creates a distinct niche unlikely to conflict with general coding or other skills.

The content is mostly efficient with good use of tables and examples, but includes information Claude already knows well (HTTP methods, status codes, basic REST conventions). This is essentially a reference card for widely-known REST standards rather than novel guidance.

Provides concrete examples of URL patterns, response formats, and query parameters, but lacks executable code for actually implementing an API (e.g., route handlers, middleware). The examples are illustrative rather than copy-paste ready for building something.

There is no workflow or sequenced process for designing an API. The content is a reference sheet of conventions with no guidance on how to apply them step-by-step when designing a new API, no decision points, and no validation steps.

The content is reasonably organized with clear section headers, but it's a monolithic file with no references to deeper materials (e.g., authentication patterns, error handling guide, OpenAPI spec examples). Some sections like response format could benefit from linking to more detailed examples.