Agent Tool Definitions Generator
Generates complete JSON Schema tool definitions for your agent — names, disambiguating descriptions, typed parameters with enums, and the error returns — ready to paste.
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to open Agent Tool Definitions Generator — and the other 364 prompts across 21 categories.
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Running it, start to finish
- Describe the agent and the capabilities it needs in plain language.
- Check the disambiguation table quotes a real separating sentence for every pair.
- Add the error-handling lines to your system prompt.
What you get back
The output this produces, every time.
- Groups capabilities by the decisions the model makes rather than by your endpoint list.
- Writes when-not-to-use into every description, which is what prevents wrong selection.
- Defines the failure returns, so the agent does not misread an error as data.
Getting better results
Where this usually goes wrong, and how to avoid it.
- Resist one tool per endpoint. It is the most common design and produces the most retries. If the model never chooses between two, they are one tool.
- Use enums aggressively. Any closed set as an enum rather than a string removes a whole class of malformed call before it happens.
- Fix ambiguities with context, not longer descriptions. Descriptions past about four sentences stop helping. The system prompt is where remaining ambiguity gets resolved.
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Written for The AI University. Every prompt in this library is original work — authored, tested and revised here, not collected from elsewhere. 365 of them, free with an account.