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    Works with the AI tools you already use

    Claude CodeClaude CodeCursorCursorCodex CLICodex CLIGitHub CopilotGitHub CopilotGemini CLIGemini CLI+20 more

    🧰 Tool Schema Linter

    2

    The Tool Schema Linter is a specialized audit tool for developers building agentic workflows and tool-calling applications.

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    🧰 Tool Schema Linter

    🧰 Tool Schema Linter

    Example session with this skill installed

    Lint my function definitions in ./src/tools/weather.json and check if they are well-defined.

    • Read your context and instructions
    • Compiled the tool schema linter

    Found 3 issues in weather.json:

    • [TSL002] Severity: High | Param 'unit' in 'get_weather' missing description.
    • [TSL008] Severity: Med | Param 'location' is free-form; recommend adding 'examples' or boundaries.
    • [TSL004] Severity: Low | 'get_temp' and 'get_weather' have overlapping purposes.
    Found 3 issues in weather.json

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

    What you get

    Audit JSON schemas for missing descriptions and untyped parameters.Identify overlapping function names that cause agent confusion.Detect unsafe tool exposure before deploying to production agents.Enforce consistency across large sets of tool definitions.Optimize tool definitions to reduce LLM token usage and improve accuracy.

    About this skill

    What it does

    The Tool Schema Linter is a specialized audit tool for developers building agentic workflows and tool-calling applications. It analyzes your JSON function definitions against a rigorous set of rules designed to prevent LLM hallucinations, "lazy" tool selection, and security risks. By scanning your schema files, it identifies missing descriptions, untyped parameters, and overlapping tool signatures that often cause agents to fail in production.

    Why use this skill

    Writing perfect function schemas for LLMs is tedious and error-prone. While a basic prompt might catch a missing comma, this skill uses a structured heuristic engine to find logical flaws, such as too many tools for a single context window or free-form parameters that should be bounded to an enum for reliability. It saves hours of debugging "why the agent didn't call the right tool" by ensuring your definitions are mathematically and semantically sound.

    Supported tools

    • Standard JSON function-calling schemas (OpenAI, Anthropic, Gemini formats)
    • Local tool definition files (.json, .tool.json)
    • Standard input streams for CI/CD integration
    • Customizable rule thresholds via reference JSON files

    How to install

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

    ~30 seconds
    1. 1

      Download the ZIP

      Free skills download straight away. Paid skills unlock right after purchase.

    2. 2

      Unzip into your skills folder

      Every agent reads skills from one folder on your machine. Drop the unzipped folder in there.

    3. 3

      Ask your agent to use it

      Restart the agent if it was already running. It picks the skill up automatically - no config needed.

    Skills folder by agent

    Click the path to copy it. Create the folder if it does not exist yet.

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    Recently published to Agensi

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    Security scanned

    Verified clean 3 months ago

    • Passed all security checks, Safe to install

    Listed3 months ago

    Frequently Asked Questions