PR Review

Overall Assessment: Good fix for preventing ClickHouse query timeouts

Code Quality Issues:

• Logging inaccuracy in util.ts:79 - numWindows value in second log message is stale (calculated before first truncation). Consider recalculating or removing from second log.

• Minor: Variable oneDayMs in tests (line 344) is defined but never used - Remove unused variable.

Positive Notes:

• Comprehensive test coverage (10 test cases)
• Clear documentation in changeset
• Proper error prevention logic
• Good use of logging for observability

Recommendation: Address the logging accuracy issue before merge to avoid confusion during debugging.

@claude remove the unused variable that the reviewer Dan mentioned

Code Review

✅ No critical issues found.

The implementation looks solid:

• ✅ Good test coverage with 11 comprehensive test cases
• ✅ Proper handling of edge cases (zero time range, fractional windows, exact limits)
• ✅ Clear logging added for debugging truncation behavior
• ✅ Constants well-defined (MAX_NUM_WINDOWS, maxLookbackTime)
• ✅ Logic correctly applies the more restrictive limit when both are exceeded

Minor observations (non-blocking):

• The magic numbers (50, 6, 24) are now constants but could benefit from comments explaining the rationale
• Consider adding JSDoc to calcAlertDateRange to document the truncation behavior for future maintainers