Can't use Claude Opus 4.5 on opencode using Github Copilot

[bhadraagada01]

Description

This is the error i get when im trying to use claude opus 4.5 with github copilot

⚙ invalid [tool=write, error=Invalid input for tool write: JSON parsing failed: Text: {"filePath": "C:\\Users\\LENOVO\\Desktop\\ntfsnap\\ntfsnap.py".
Error message: JSON Parse error: Expected '}']

and it takes ages to a response out of it and also and it gets endless stuck at preparing write

OpenCode version

1.0.204

Steps to reproduce

No response

Screenshot and/or share link

Operating System

Windows 11

Terminal

Powershell

[github-actions]

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

• [aws bedrock: anthropic opus 4.1] The arguments provided to the tool are invalid: Invalid input for tool write: JSON parsing failed: Text #1803: [aws bedrock: anthropic opus 4.1] The arguments provided to the tool are invalid: Invalid input for tool write: JSON parsing failed: Text
• Incomplete JSON when writing out files #5890: Incomplete JSON when writing out files
• JSON parsing failed: Text #2188: JSON parsing failed: Text

All of these report the same JSON parsing error when using the write tool with Claude Opus models (4.1 and 4.5). The error appears to be incomplete JSON being generated with missing closing braces.

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

[rekram1-node]

can u run this and send me file?

opencode export > session.json