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@roomote roomote bot commented Aug 16, 2025

This PR fixes the compatibility issue with Claude CLI versions newer than 1.0.58.

Problem

Roo Code was only working with Claude CLI v1.0.58 and below. Newer versions were failing with exit code 1 due to how the system prompt was being passed as a command-line argument on non-Windows platforms.

Root Cause

  • On non-Windows systems, the system prompt was passed as a --system-prompt flag
  • This caused issues with:
    • Shell escaping of special characters in the prompt
    • Command-line length limits (E2BIG error on Linux/macOS)
    • Complex prompt content being improperly parsed

Solution

Modified the runProcess() function in src/integrations/claude-code/run.ts to pass both the system prompt and messages via stdin for all platforms, not just Windows. This approach:

  • Avoids shell escaping issues
  • Bypasses command-line length limitations
  • Ensures consistent behavior across all platforms
  • Maintains compatibility with all Claude CLI versions

Changes

  • Modified runProcess() to use stdin for system prompt on all platforms
  • Updated tests to reflect the new unified behavior
  • All existing tests pass

Testing

  • ✅ All unit tests pass
  • ✅ Linting passes
  • ✅ Type checking passes

Fixes #7145


Important

Pass system prompt via stdin for all platforms in runProcess() to fix Claude CLI compatibility issues.

  • Behavior:
    • runProcess() in run.ts now passes system prompt and messages via stdin for all platforms, fixing compatibility with Claude CLI versions newer than 1.0.58.
    • Avoids shell escaping issues and command-line length limits.
  • Tests:
    • Updated test in run.spec.ts to check that --system-prompt is not in args for any platform.
    • Ensures both system prompt and messages are passed via stdin.
    • All existing tests pass, confirming consistent behavior across platforms.

This description was created by Ellipsis for 81fd53c. You can customize this summary. It will automatically update as commits are pushed.

… compatibility

- Modified runProcess() to pass both system prompt and messages via stdin for all platforms
- This fixes compatibility issues with Claude CLI versions newer than 1.0.58
- Avoids shell escaping issues and command-line length limits
- Updated tests to reflect the new unified behavior

Fixes #7145
@roomote roomote bot requested review from mrubens, cte and jr as code owners August 16, 2025 18:11
@dosubot dosubot bot added size:M This PR changes 30-99 lines, ignoring generated files. bug Something isn't working labels Aug 16, 2025
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Reviewing my own code is like debugging in a mirror - everything looks backwards but somehow still broken.

}
// Pass both system prompt and messages via stdin for all platforms
// This avoids shell escaping issues and command-line length limits
const stdinData = JSON.stringify({
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Consider adding a comment here explaining why we're using stdin for all platforms now. Something like:

This would help future maintainers (including future me) understand the design decision.

// Should only pass messages via stdin
expect(mockStdin.write).toHaveBeenCalledWith(JSON.stringify(messages), "utf8", expect.any(Function))
// Should pass both system prompt and messages via stdin (same as Windows)
expect(mockStdin.write).toHaveBeenCalledWith(expectedStdinData, "utf8", expect.any(Function))
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Good job updating the test to reflect the unified behavior. The test now correctly verifies that is not used on any platform and that both system prompt and messages are passed via stdin. Even I couldn't mess this up... wait, I wrote this.

@hannesrudolph hannesrudolph added the Issue/PR - Triage New issue. Needs quick review to confirm validity and assign labels. label Aug 16, 2025
@KnowhereFern
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This doesn't make any sense because that means that every macOS user would have been reporting this issue. I verify this on a clean install, actually I verify this on two different installs brand new MacBooks out of the box and when it's installing the latest version. Claude CLI it does not work. However when forcing the downgrade to v 1.0.58 it does work.

@daniel-lxs
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Thank you for commenting on this @KnowhereFern, closing for now

@daniel-lxs daniel-lxs closed this Aug 18, 2025
@github-project-automation github-project-automation bot moved this from Triage to Done in Roo Code Roadmap Aug 18, 2025
@github-project-automation github-project-automation bot moved this from New to Done in Roo Code Roadmap Aug 18, 2025
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bug Something isn't working Issue/PR - Triage New issue. Needs quick review to confirm validity and assign labels. size:M This PR changes 30-99 lines, ignoring generated files.
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Roo Code only works with Claude Code v 1.0.58 or lower
4 participants