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Evaluate COM-first extraction and retain file-first behavior - #157
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Navigate logical layers of code changes, visualize relationships, and explore their blast radius. No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info⚙️ Run configuration
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🚧 Files skipped from review as they are similar to previous changes (1)
Included review availability: This review used your included allowance. Your plan provides up to 2 included reviews per hour; 0 remain after this review. 📝 WalkthroughWalkthroughThe public ChangesIssue 151 extraction evaluation
Priority: ⬇️ Low Estimated code review effort: 3 (Moderate) | ~25 minutes Change: Other Sequence Diagram(s)sequenceDiagram
participant measure
participant com_first
participant ComBackend
participant file_only_pipeline
measure->>com_first: Run extraction with benchmark inputs
com_first->>ComBackend: Extract cells
alt COM extraction succeeds
ComBackend-->>com_first: Return cell data
else COM extraction fails
com_first->>file_only_pipeline: Run after COM resource scopes end
file_only_pipeline-->>com_first: Return fallback result
end
com_first-->>measure: Return result and COM status
Merge Risk: ⚪ Minimal · up to The public extraction path remains file-first, and the reported COM compatibility differences are not being introduced into that path. No actionable merge-blocking issue is established. Security Architecture ReviewSecurity architecture risk: 🔵 Low · up to The experimental reader remains outside public extraction, and forceful cleanup is limited to Excel instances created by the operation. No introduced security issue was substantiated, but concurrent use, interruption, and recovery after cleanup failures remain incompletely verified. Retained concerns Security review detailsSecurity Blast Radius
Trust Boundaries and Controls
Resilience and Maintainability Implications
🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 9.72% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 72 functions across 9 files. (1 skipped: 1 unsupported.)
✨ Finishing Touches 💡 1📝 Generate docstrings 💡
🧪 Generate unit tests (beta)
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Up to standards ✅🟢 Issues
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| Metric | Results |
|---|---|
| Complexity | 20 |
| Duplication | 0 |
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Actionable comments posted: 1
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🤖 Prompt to fix review comments
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only still-valid issues, skip the rest with a brief reason, keep changes
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Inline comments:
Review comments at @benchmark/issue151-results.md:
- Around line 68-69: Update the large/cold COM-first candidate-run record in the
benchmark results so its total is reported as 2,397.7 ms, not about 773 ms; keep
the note that the COM RPC failure returned the clean file fallback.
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ℹ️ Review info
⚙️ Run configuration
- Configuration used: defaults
- Review profile: CHILL
- Plan: Advanced
- Run ID:
669a7ae2-5bf3-4999-bb8a-aeac7b1b033b
📒 Files selected for processing (22)
CHANGELOG.mdbenchmark/baselines/issue151-2026-10-03-verbose-windows.jsonbenchmark/baselines/issue151-2026-10-03-windows.jsonbenchmark/baselines/issue151-compatibility-windows.jsonbenchmark/baselines/issue151-verbose-no-colors-windows.jsonbenchmark/issue151-results.mdbenchmark/issue151_com_first.pybenchmark/issue151_compatibility.pybenchmark/issue151_report.pydev-docs/adr/ADR-0014-retain-file-first-com-extraction.mddev-docs/adr/README.mddev-docs/adr/decision-map.mddev-docs/adr/index.yamldev-docs/specs/excel-extraction.mddev-docs/specs/extraction-performance.mdsrc/exstruct/core/backends/com_backend.pysrc/exstruct/core/workbook.pytasks/lessons.mdtests/backends/test_com_bulk_cells.pytests/benchmark/test_issue151_com_first.pytests/com/test_issue151_bulk_compatibility.pytests/core/test_workbook_utils.py
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1 participant
Summary
Evaluate COM-first
standard/verboseextraction with bulk cell reads and retain the public file-first pipeline. The measured candidate does not provide consistent performance gains and changes saved-value semantics for dates, formula caches, and unsaved edits.Value2cell-reader prototype, sequential comparison/compatibility runners, raw Windows baselines, and a reproducible results report.Closes #151. Results: benchmark/issue151-results.md.
Tests
rtk uv run --extra mcp --extra fast pytest -q -m 'not com and not render and not libreoffice' --cov=exstruct --cov-report=term --cov-fail-under=80: 1,094 passed, 2 skipped, 13 deselected; 84.11% coverage before the final two focused compatibility-summary cases.rtk uv run --extra mcp --extra fast ruff check .and strict mypy for all 89 source files passed; benchmark scripts also passed explicit Ruff checks.gpt-6-luna/xhighfinal review: Pass 1 found one reproduction-command P2; fixed in781d32f. Pass 2 passed with no active in-scope findings. Review sessions/worktrees were cleaned up.These are local validation results; remote CI status is separate.
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