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Size is not a defect on its own — some problems genuinely live in one place — but these are where merge conflicts, review fatigue and single-owner knowledge concentrate, and they are the first thing that slows an inheriting engineer down.","context_why":"A note that does not affect this rating: notes like it are common in well-run projects."}],"signals_run":11,"conclusive_signals":9,"what_a_person_adds":[{"id":"01.38","kind":"H+","where":"The team","measured":"No architecture or design document is in the tree, across 537 product files.","question":"Where does the design live, and who holds it?"},{"id":"01.35","kind":"H+","where":"The team and the submodule owners","measured":"The repository pulls code in through git submodules (.gitmodules).","question":"A buyer receives pointers, not that code. Can every submodule be fetched without the team's credentials, and who owns each one?"},{"id":"01.39","kind":"H","where":"Your architects, with the product roadmap","question":"Is the architecture right for the next three years of the product?"},{"id":"01.40","kind":"H","where":"The team's reasoning at the time","question":"Were the home-grown components reasonable choices when they were made, and are they now?"}]},{"id":"02","band":"adequate","name":"Engineering Process & SDLC Maturity","coverage":"high","findings":[{"id":"02.3","band":"adequate","layer":"deterministic","title":"Tests cover a thin slice of the codebase","signal":"test_presence","weight":"corroborating","evidence":[{"ref":"test-file-ratio","kind":"metric","detail":"42 test files / 531 source files"}],"observed":{"tests":42,"source":531,"test_ratio":0.079},"dimension":"02","rationale":"42 test files against 531 source files (7.9%). This does not measure whether the tests are good, only whether enough of them exist for the codebase to be changed safely by someone who did not write it — which is exactly the situation after an acquisition."},{"id":"02.6","band":"adequate","layer":"deterministic","title":"Almost no process scaffolding exists in the repository","signal":"branch_protection_hints","weight":"corroborating","context":true,"evidence":[{"ref":"process-scaffolding","kind":"metric","detail":"1 of 5 markers present across 856 tracked files"}],"observed":{},"dimension":"02","rationale":"Of five ordinary markers — CI workflows, CODEOWNERS, a pull-request template, pre-commit hooks, contribution guidance — 1 is present: CI workflows. Branch protection itself is a GitHub setting rather than a file, so this is a reading of proxies and not of the rules themselves. What it does establish is that the process is not written down anywhere a new engineer would find it.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."}],"signals_run":16,"conclusive_signals":15,"what_a_person_adds":[{"id":"02.32","kind":"H","where":"The code host's pull request data","question":"Is review real or a rubber stamp? 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In a project with 21 recent contributors and 20 years of history, that is a question about one person's role rather than a fragile team — but it is the question to ask. "},{"id":"03.5","band":"adequate","layer":"deterministic","title":"The contributor who wrote a quarter or more of this has not committed here for more than three years","signal":"contributor_attrition","weight":"corroborating","evidence":[{"ref":"last-commit-by-top-author","kind":"metric","detail":"last commit more than three years ago, measured to the survey"},{"ref":"git shortlog -sn","kind":"metric","detail":"top author a quarter or more of 3,698 commits"}],"observed":{"authors":137,"top_share":"a quarter or more","top_contributor_last_committed":"more than three years ago"},"dimension":"03","rationale":"One person authored a quarter or more of 3,698 commits and has not committed here for more than three years, while the repository has kept moving. The concentration figure alone would not show this. Whoever is changing this code now is not the person who wrote most of it, which is the situation an acquirer is usually told they are avoiding. The history shows only that no commits of theirs landed here, not why."},{"id":"03.12","band":"adequate","layer":"deterministic","title":"The next contributor after the top one has not committed here for more than a year","signal":"second_contributor_attrition","weight":"corroborating","evidence":[{"ref":"git shortlog -sn","kind":"metric","detail":"the #2 contributor of the last three years (less than a quarter of the commits) has not committed here for more than two years"}],"observed":{"gone":[{"rank":2,"share":"less than a quarter","last_committed":"more than two years ago"}]},"dimension":"03","rationale":"The #2 contributor of the last three years (less than a quarter of the commits) has not committed here for more than two years, while the repository is still active. 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Rework is normal and often healthy, but a rising ratio means an increasing share of the team's time is spent replacing code that already exists rather than building what does not. Whether that is deliberate repayment or churn is a question for the team.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."},{"id":"04.20","band":"adequate","layer":"deterministic","title":"Fixes are 52% of recent work, up from 23%","signal":"fix_share_trend","weight":"corroborating","evidence":[{"ref":"fix share by quarter","kind":"metric","detail":"39%, 65%, 22%, 16%, 25%, 26%, 13%, 39%"}],"observed":{"fix_share_by_quarter_newest_first":[0.39,0.65,0.22,0.16,0.25,0.26,0.13,0.39]},"dimension":"04","rationale":"In the last two quarters 52% of commits were fixes, against 23% in the quarters before. 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