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    API Documentation Gap Finder

    1

    The problem Vague API documentation leads to integration friction, increased support tickets, and developer churn.

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    API Documentation Gap Finder

    API Documentation Gap Finder

    Example session with this skill installed

    Review this draft for a POST /v1/payments endpoint. It needs an amount and currency. We use Bearer tokens. Returns a payment object.

    • Read your context and instructions
    • Compiled the api documentation gap

    The documentation for the /v1/payments endpoint is in a draft state and requires additional technical detail for production readiness.

    API Documentation Gap Report

    GapLocationDeveloper ImpactPriorityRecommended Fix
    Auth header formatAuthenticationIntegration failureHighSpecify Authorization: Bearer [TOKEN] format.
    Parameter constraintsRequest BodyValidation errorsHighDefine amount type (integer/decimal) and currency format (ISO 4217).
    Missing status codesResponsesUnreliable error handlingHighDocument 400 (Validation), 401 (Unauthorized), and 402 (Payment Required).
    Idempotency guidanceRequestDuplicate paymentsMediumAdd Idempotency-Key header documentation for safe retries.

    Suggested Documentation Snippet

    POST /v1/payments
Authorization: Bearer [YOUR_API_KEY]
Content-Type: application/json

{
  "amount": 2000,
  "currency": "USD",
  "description": "Order #1234"
}

    Next steps

    • Confirm with engineering if amount should be sent in minor units (e.g., cents).
    • Define the specific error response schema for failed payments.
    • Add a table of supported currency codes.

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    About this skill

    The problem

    Vague API documentation leads to integration friction, increased support tickets, and developer churn. Teams often release endpoints with missing error codes, unclear parameter constraints, or incomplete authentication guides.

    What it does

    • Identifies missing request parameters, data types, and required/optional field designations.
    • Audits authentication guides for gaps in token expiry, refresh logic, and scope explanations.
    • Flags missing response status codes, asynchronous states, and error-handling tables.
    • Evaluates the developer onboarding journey, including quickstarts, sandbox setup, and SDK guidance.
    • Generates a prioritized gap register with specific recommendations and documentation snippets.

    Why this beats prompting it yourself

    General-purpose LLMs often give generic writing advice rather than technical audits. This skill follows a structured framework specifically designed for developer experience, ensuring you don't miss edge cases like rate limits, pagination, or idempotency keys that generic prompts overlook.

    Use cases

    • Pre-release audit of new API endpoints to ensure implementation readiness.
    • Reviewing partner-facing documentation to reduce integration support overhead.
    • Turning engineering notes into structured documentation gap reports for technical writers.
    • Auditing existing docs for missing error codes and troubleshooting guidance.

    Known limitations

    Does not execute live API calls or verify if the implementation matches the documentation. Cannot verify security or compliance readiness.

    Find more skills like this on the Claude Skills Marketplace, the Codex Skills Marketplace and the Gemini Skills Marketplace, or browse Claude Skills for Technical Documentation.

    Does not execute live API calls or verify if the implementation matches the documentation. Cannot verify security or compliance readiness.

    How to use

    1. 1

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    3. 3

      Ask for what you need

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    Trust & safety

    Security scan

    Security scan passed 2 months ago

    Permissions

    Network Access
    Listed2 months ago

    What's inside

    Frequently Asked Questions

    The skill performs a structured audit of your API docs to identify missing status codes, unclear authentication logic, and gaps in SDK examples, preventing developer friction before you launch.

    You simply provide the skill with your existing documentation text, Markdown files, or OpenAPI specs, and it generates a prioritized gap report with specific improvement recommendations.

    While it excels at auditing technical content for completeness, this skill does not execute live API calls or verify if your backend code actually matches your written documentation.

    Yes, the skill is designed to handle modern documentation formats including REST, GraphQL, and Webhooks, with a specific focus on developer experience (DX) best practices.

    You receive full access to the Gap Finder skill, including a structured framework for auditing technical docs and templates for generating documentation snippets to fill identified gaps.

    New in Technical Documentation