Greptile Summary

Fixed a bug where stripInlineStatus() and extractInlineSimpleCommand() were collapsing newlines along with other whitespace using /\s+/g, destroying paragraph structure in multi-line messages. The fix replaces the regex with /[^\S\n]+/g to only collapse horizontal whitespace (spaces, tabs) while preserving line breaks (\n).

Key Changes

• Updated regex pattern in both functions to preserve newlines
• Added comprehensive test suite with 8 tests covering newline preservation, whitespace collapsing, command extraction, and edge cases
• Added inline comment explaining the regex choice for future maintainability

The implementation is correct and well-tested. The regex pattern /[^\S\n]+/g is a standard idiom for matching horizontal whitespace.

Confidence Score: 5/5

• This PR is safe to merge with minimal risk
• The change is a focused bug fix with clear intent, using a well-established regex pattern. Comprehensive test coverage (8 new tests) validates the fix works as intended. The code is simple, well-documented, and addresses a specific issue (GitHub stripInlineStatus collapses newlines in all incoming messages #32216) without introducing new complexity.
• No files require special attention

_{Last reviewed commit: 2c42930}

Landed via temp rebase onto main.

• Gate: pnpm -s vitest run src/auto-reply/reply/reply-inline.test.ts
• Land commit: 825d5aa
• Merge commit: 319b7c6

Thanks @scoootscooob!