JSON parsing failed: Text

[bb33bb]

Write

The arguments provided to the tool are invalid: Invalid input for tool write: JSON parsing failed: Text:
{"filePath": "/Volumes/4t/Deep Multi-Task and Meta Learning/01/main.py".
Error message: JSON Parse error: Expected '}'

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• JSON Parse error: Expected '}' with the write tool after updating to v0.5.5 Description #2002: Similar JSON parse error 'Expected '}' with the write tool after updating to v0.5.5
• [aws bedrock: anthropic opus 4.1] The arguments provided to the tool are invalid: Invalid input for tool write: JSON parsing failed: Text #1803: Similar JSON parsing error with AWS Bedrock - 'The arguments provided to the tool are invalid: Invalid input for tool write: JSON parsing failed'
• JSON Parse error: Unterminated string with openrouter/kimi-k2 #1278: Similar 'JSON Parse error: Unterminated string' issue with openrouter/kimi-k2

Feel free to ignore if none of these address your specific case.

[rekram1-node]

this is the llm failing to call the tool looks like, this can happen from time to time, some models are worse than others.

What model was it?

[bb33bb]

duplicated, sorry
github claude 4 model

this is the llm failing to call the tool looks like, this can happen from time to time, some models are worse than others.

What model was it?

[bb33bb]

Write

The arguments provided to the tool are invalid: Invalid input for tool write: Type validation failed: Value:
{}.
Error message: [
  {
    "code": "invalid_type",
    "expected": "string",
    "received": "undefined",
    "path": [
      "filePath"
    ],
    "message": "Required"

Write

The arguments provided to the tool are invalid: Invalid input for tool write: JSON parsing failed: Text:
{"filePath": "xxxx.txt".
Error message: JSON Parse error: Expected '}'

[JacobHolman]

I’m experiencing a similar issue. It seems that this model, specifically the GitHub Claude 4 one, has recurring problems.

[bb33bb]

I’m experiencing a similar issue. It seems that this model, specifically the GitHub Claude 4 one, has recurring problems.

I am using the same model.

[barrenaedu]

Same error here, using opencode 0.14.6 and LM Studio 0.3.29 with qwen/qwen3-coder-30b. If I use qwen/qwen2.5-coder-14b the error is not present.

[rekram1-node]

yeah looks like lm studio issue : lmstudio-ai/lmstudio-bug-tracker#1071

[yagil]

Fixed in LM Studio 0.3.30, sorry about that