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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
    • Generated the document

    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.

    api-documentation-gap-finder.pdf

    PDF · document

    Generated

    Example file from a real run - the skill writes it into your workspace.

    Connects securely to your tools. The creator never sees your data.

    What you get

    Audit draft API endpoints for missing parameters and response schemas.Identify gaps in authentication and authorization instructions.Generate a prioritized list of documentation fixes for release readiness.Create troubleshooting tables for missing error codes and status messages.

    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.

    How to install

    Works the same in every agent - Claude, Cursor, Codex, Copilot and 20+ more.

    ~30 seconds
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      Unzip into your skills folder

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    Fresh listing

    Recently published to Agensi

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    Trust & safety

    Security scanned

    Verified clean 23 days ago

    • Passed all security checks, Safe to install

    Listed23 days ago

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