troubleshooting-tool-use changedagents-and-tools/tool-use/troubleshooting-tool-use
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1313| Claude calls tool A when you wanted tool B | Description ambiguity | Sharpen descriptions. Differentiate tools by WHEN to use them, not only WHAT they do. See [Define tools](https://platform.claude.com/docs/en/agents-and-tools/tool-use/define-tools). |
1414| Claude never calls your tool | Tool name collision or overly generic schema | Check for duplicate names across your tool list. Add `input_examples` to make the intended use concrete. |
15| Claude calls with wrong parameter types | Model guessing at ambiguous schema | Add `strict: true` (if your schema is in the supported subset) or add `input_examples`. |
15| Claude calls with wrong parameter types | Ambiguous schema | Add `strict: true` (if your schema is in the supported subset) or add `input_examples`. |
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1717## Claude invents tool parameters
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