The issue was that tools with complex nested parameters (like arrays of objects)
were losing their structure when converted to Zod schemas. The LLM would then
pass stringified JSON instead of actual arrays.
- Import jsonSchema from AI SDK
- Check if tool.inputSchema exists (full JSON Schema from executor)
- Use jsonSchema() wrapper to preserve nested array/object structures
- Fall back to legacy tpmjsParamsToZodSchema only if inputSchema is missing
This fixes the changelog tool and similar tools with complex parameter types.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
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