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Read tool displays garbled text for GBK encoded files #31604
Description
Description
Description
The Read tool cannot correctly display files encoded in GBK (codepage 936). It shows garbled text (乱码) instead of the actual content.
Steps to Reproduce
- Create a text file with GBK encoding (common in .NET applications on Chinese Windows)
- Open the file using the Read tool
- Observe garbled output
Expected Behavior
The Read tool should auto-detect the file encoding or at least handle common encodings like GBK correctly.
Actual Behavior
The Read tool appears to use UTF-8 by default, causing GBK encoded files to display as garbled text.
Workaround
Using PowerShell with explicit encoding works:
[System.IO.File]::ReadAllText($path, [System.Text.Encoding]::GetEncoding(936))
### Plugins
_No response_
### OpenCode version
1.17.0
### Steps to reproduce
_No response_
### Screenshot and/or share link
_No response_
### Operating System
_No response_
### Terminal
_No response_Metadata
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github-actions commentedon Jun 10, 2026
This issue might be a duplicate of existing issues. Please check:
If your issue is distinct from the above, please clarify what makes it different.
github-actions commentedon Aug 10, 2026
To stay organized issues are automatically closed after 60 days of no activity. If the issue is still relevant please open a new one.