AI_InvalidToolInputError: Invalid input for tool write #1498

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1. thdxr

   self-assigned this

   on Aug 4, 2025
2. thdxr commented on Aug 4, 2025

   

   thdxr

   on Aug 4, 2025 – with Linear

   Member

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   try again in latest
3. rekram1-node commented on Dec 28, 2025

   

   rekram1-node

   on Dec 28, 2025

   Collaborator

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   [automated] Closing due to 90+ days of inactivity. Feel free to reopen if you still need this!
4. rekram1-node

   closed this as completedon Dec 28, 2025
5. harmeet commented on Feb 23, 2026

   

   harmeet

   on Feb 23, 2026

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   This issue still exists as of Feb 22, 2026.

   Reproduced with mlx-community/Qwen3-Coder-Next-4bit with mlx_lm.server on Apple M4.

   Error:

   Error: The write tool was called with invalid arguments: [
     {
       "expected": "string",
       "code": "invalid_type",
       "path": [
         "filePath"
       ],
       "message": "Invalid input: expected string, received undefined"
     }
   ].
   Please rewrite the input so it satisfies the expected schema.
   

   Opened a PR with a one-line fix: #14744
6. bussard76

   added a commit that references this issue on May 12, 2026

   docs: automated documentation updates 2026-04-19 (anomalyco#1498)

   ...

   e5da69a