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trying to read pdf files is causing issues #21390
Description
Description
Bug Description
The Read tool consistently fails when attempting to read PDF files, returning "Invalid request Error". Text and markdown files work fine.
Steps to Reproduce
- Try to read any PDF file using the Read tool
- Observe "Invalid request Error"
Tested Files
- ~/Downloads/Movingtech/www.movingtech.com.pdf (2.5MB) - Failed
- ~/Downloads/Invoice-SZJ9D-0001.pdf (<500KB) - Failed
- Same files converted to .txt using pdfplumber - Worked
Environment
- Platform: macOS (darwin)
- Tool: Read
- File formats tested: .pdf (fails), .md (works), .txt (works)
Workaround
Convert PDFs to text before reading:
pip3 install pdfplumber
python3 -c "import pdfplumber; print(pdfplumber.open('file.pdf').pages[0].extract_text())"
Expected Behavior
PDF files should be readable like other document formats, or documentation should indicate PDF is not supported.
### Plugins
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### OpenCode version
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### Steps to reproduce
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### Screenshot and/or share link
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### Operating System
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### Terminal
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github-actions commentedon Apr 7, 2026
This issue might be a duplicate of existing issues. Please check:
Please review these issues to see if your problem is already being tracked. If your issue is different, feel free to add clarifying details.
zhiyiwang-byte commentedon Jun 8, 2026
I've investigated this issue and identified the root cause. The crash happens because
prompt.ts:993usesEffect.catch(Effect.die)which converts file read IO errors into unrecoverable defects during user attachment processing.I've opened a fix PR: #31329
github-actions commentedon Aug 8, 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.