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api-reference-documentation

Creates professional API documentation using OpenAPI specifications with endpoints, authentication, and interactive examples. Use when documenting REST APIs, creating SDK references, or building developer portals.

Install with Tessl CLI

npx tessl i github:secondsky/claude-skills --skill api-reference-documentation
What are skills?

Overall
score

68%

Does it follow best practices?

Validation for skill structure

SKILL.md
Review
Evals

Discovery

100%

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

This is a well-crafted skill description that excels across all dimensions. It provides specific capabilities, uses natural developer terminology, includes an explicit 'Use when' clause with clear triggers, and carves out a distinct niche in API documentation that won't conflict with other skills.

DimensionReasoningScore

Specificity

Lists multiple specific concrete actions: 'Creates professional API documentation', 'using OpenAPI specifications', 'with endpoints, authentication, and interactive examples'. These are concrete, actionable capabilities.

3 / 3

Completeness

Clearly answers both what (creates API documentation with OpenAPI specs, endpoints, auth, examples) AND when (explicit 'Use when' clause covering documenting REST APIs, creating SDK references, building developer portals).

3 / 3

Trigger Term Quality

Includes strong natural keywords users would say: 'API documentation', 'OpenAPI specifications', 'REST APIs', 'SDK references', 'developer portals', 'endpoints', 'authentication'. Good coverage of terms developers naturally use.

3 / 3

Distinctiveness Conflict Risk

Clear niche focused specifically on API documentation with distinct triggers like 'OpenAPI', 'REST APIs', 'SDK references', 'developer portals'. Unlikely to conflict with general documentation or coding skills.

3 / 3

Total

12

/

12

Passed

Implementation

37%

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

This skill provides a useful OpenAPI specification example and reasonable checklists, but lacks actionable workflow guidance for actually creating API documentation. It reads more like a reference card than an instructional skill, missing concrete steps for generating docs with the listed tools and validation checkpoints to ensure documentation quality.

Suggestions

Add a step-by-step workflow for generating documentation (e.g., '1. Write OpenAPI spec, 2. Validate with `swagger-cli validate spec.yaml`, 3. Generate docs with Redoc')

Include executable commands for the listed tools (Swagger, Redoc, etc.) rather than just naming them

Move the full OpenAPI example to a separate reference file and keep only a minimal example inline

Add validation steps to verify the generated documentation is complete and accurate

DimensionReasoningScore

Conciseness

The content is reasonably efficient but includes some unnecessary elements like the full OpenAPI spec example which is verbose. The checklist and best practices sections contain items Claude already knows about API documentation.

2 / 3

Actionability

Provides a concrete OpenAPI spec example which is helpful, but the guidance is mostly descriptive checklists and best practices rather than executable steps. Missing actual commands for generating docs or specific workflow instructions.

2 / 3

Workflow Clarity

No clear workflow or sequence for creating API documentation. The content presents a checklist and best practices but doesn't explain how to actually create documentation step-by-step or validate the output.

1 / 3

Progressive Disclosure

Content is organized into logical sections but everything is inline in one file. The tools section could link to detailed guides, and the OpenAPI example could be in a separate reference file given its length.

2 / 3

Total

7

/

12

Passed

Validation

81%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation13 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata' field is not a dictionary

Warning

license_field

'license' field is missing

Warning

body_steps

No step-by-step structure detected (no ordered list); consider adding a simple workflow

Warning

Total

13

/

16

Passed

Reviewed

Table of Contents

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