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A log written by someone explaining their reasoning to a future reader does not look like this. The log is therefore weak evidence of intent, whatever the code is like.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."},{"id":"01.6","band":"adequate","layer":"deterministic","title":"tduck-account/src/main/java/com/tduck/cloud/account/util/NameUtils.java is 6,924 lines, 157× this codebase's median file","signal":"oversized_modules","weight":"corroborating","context":true,"evidence":[{"ref":"line-count","kind":"path","path":"tduck-account/src/main/java/com/tduck/cloud/account/util/NameUtils.java","detail":"6,924 lines (157× median)","line_end":6924,"line_start":1}],"observed":{"largest":6924,"library":{"n":382,"share":87,"value":157.4,"cutoff":138.63,"material":true,"percentile":85},"threshold":1000,"files_over":1,"median_lines":44},"standing":"Measured against its own codebase's median, it is larger than 87% of 382 surveyed projects' largest files.","dimension":"01","rationale":"The median source file here is 44 lines. 1 file exceed 1,000 lines, the largest being 6,924. 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":10,"what_a_person_adds":[{"id":"01.38","kind":"H+","where":"The team","measured":"No architecture or design document is in the tree, across 371 product files.","question":"Where does the design live, and who holds it?"},{"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":"2 test files / 318 source files"}],"observed":{"tests":2,"source":318,"test_ratio":0.006},"unproven":true,"dimension":"02","rationale":"2 test files against 318 source files (0.6%). 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":"0 of 5 markers present across 379 tracked files"}],"observed":{},"dimension":"02","rationale":"Of five ordinary markers — CI workflows, CODEOWNERS, a pull-request template, pre-commit hooks, contribution guidance — none are present. 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":8,"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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Every change passes through that one account, however many people write them. This is the single most expensive thing to discover after closing, and the repository cannot tell you whether that person is part of the transaction."},{"id":"03.3","band":"adequate","layer":"deterministic","title":"3 of 10 major areas have only ever had one author","signal":"knowledge_silos","weight":"corroborating","context":true,"evidence":[{"ref":"sole-author","kind":"path","path":"tduck-wx-mp/","detail":"1,371 lines added"},{"ref":"sole-author","kind":"path","path":"tduck-webhook/","detail":"763 lines added"},{"ref":"sole-author","kind":"path","path":"tduck-ai/","detail":"645 lines added"}],"observed":{},"dimension":"03","rationale":"Across 19 contributors, 3 substantial top-level areas have been touched by exactly one person. The headline bus factor does not show this: a team can look well spread in aggregate and still have subsystems that stop moving the day one person stops working on them. For these areas, ask who else can change them today.","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":10,"conclusive_signals":7,"what_a_person_adds":[{"id":"03.29","kind":"H+","where":"The deal terms","measured":"One contributor authored more than half of the commits in this history.","question":"Is that person part of the transaction, and for how long after it?"},{"id":"03.22","kind":"H+","where":"The team","measured":"tduck-wx-mp/ (less than a quarter of the files) has not changed in 18 months while the rest of the repository moved.","question":"Is that code finished, or abandoned, and who still knows how it works?"},{"id":"03.28","kind":"H","where":"The team; review history only suggests candidates","question":"Who mentors whom, and would that survive a departure?"},{"id":"03.30","kind":"H","where":"Recruiting data and the org chart","question":"Can the team grow, and who stands behind the top three contributors?"},{"id":"03.31","kind":"H","where":"HR data","question":"Is the seniority mix sound, and will pay survive your salary bands?"},{"id":"03.14","kind":"H","where":"Interviews and on-call history","question":"Is the pace sustainable? 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It is a one-line fix and an ordinary expectation, which is why its absence is worth asking about: it usually says more about whether anyone has reviewed the deployment than about this container specifically."},{"id":"05.60","band":"adequate","layer":"deterministic","title":"Relicensed: Apache-2.0 → GPL-3.0 (2021-06-22) → Apache-2.0 (2022-04-07) → MIT (2023-08-07)","signal":"licence_changes","weight":"corroborating","context":true,"evidence":[{"ref":"26fd61648","kind":"commit","path":"LICENSE","detail":"Apache-2.0 from 2021-01-12"},{"ref":"2de9aa18f","kind":"commit","path":"LICENSE","detail":"GPL-3.0 from 2021-06-22"},{"ref":"e480c0960","kind":"commit","path":"LICENSE","detail":"Apache-2.0 from 2022-04-07"},{"ref":"783b47834","kind":"commit","path":"LICENSE","detail":"MIT from 2023-08-07"}],"observed":{"since":"2023-08-07","latest":"MIT","weaker":false,"narrowed_at":"2021-06-22","narrowed_days":1955,"licence_versions":4,"source_available":false,"narrowed_recently":false,"unreleased_changes":0},"dimension":"05","rationale":"The root licence changed 3 time(s). Code taken under earlier terms stays under them; check which terms any fork or customer relied on.","context_why":"A note that does not affect this rating: a licence change is a fact for the first screen, and only a narrowing of rights within two years of the surveyed commit costs \"strong\"."},{"id":"05.65","band":"adequate","layer":"deterministic","title":"10 advisories against this project in the last 24 months, 3 high or critical","signal":"advisory_record","weight":"corroborating","context":true,"evidence":[{"ref":"CVE-2026-111621","kind":"advisory","detail":"2026-10-16: CVE-2026-111621 (moderate): TDuck Survey Form through 5.3 contains a missing authorization vulnerability that allows any authenticated user to read other owners' raw form settings via GET "},{"ref":"CVE-2026-109164","kind":"advisory","detail":"2026-10-12: CVE-2026-109164 (high): TDuck survey form through 6.0 contains an insecure direct object reference vulnerability that allows authenticated users to delete other users' form submissions"},{"ref":"CVE-2026-109165","kind":"advisory","detail":"2026-10-12: CVE-2026-109165 (moderate): TDuck survey form through 6.0 contains a broken access control vulnerability that allows authenticated users to add fields to other users' forms via POST /user/"},{"ref":"CVE-2026-109167","kind":"advisory","detail":"2026-10-12: CVE-2026-109167 (moderate): TDuck survey form through 6.0 contains an insecure direct object reference vulnerability in the saveFormTheme handler that allows authenticated users to overwri"},{"ref":"CVE-2026-100303","kind":"advisory","detail":"2026-09-25: CVE-2026-100303 (moderate): TDuck survey form through 6.0 lacks authorization checks on FormThemeController write endpoints for global form themes and categories. Authenticated non-admin u"}],"observed":{"newest":"2026-10-16","critical":0,"affecting":0,"could_not_tell":9,"last_24_months":10,"sources_failed":[],"known_exploited":0,"high_or_critical":3},"dimension":"05","rationale":"The newest was published on 2026-10-16. A project that publishes advisories is telling its users about its fixes, and the count and pace say how much security work it carries. Whether 9 of them are fixed in the code you ship could not be told from this history: its version is only known to be at least 5.3.0. Answer lives in: the release you run, set against each fixed version.","context_why":"A note that does not affect this rating: it describes the project's advisory record, and no advisory in it is known to affect the surveyed commit."}],"signals_run":34,"conclusive_signals":20,"what_a_person_adds":[{"id":"05.43","kind":"H+","where":"The security owner","measured":"No threat model is in the tree of what looks like a running service.","question":"Does one exist elsewhere, and who owns it?"},{"id":"05.41","kind":"H","where":"Ticketing and chat","question":"What has actually broken, how often, and how badly?"},{"id":"05.42","kind":"H","where":"Reports in the data room","question":"What did external testing find, and was it fixed?"},{"id":"05.44","kind":"H","where":"Audit reports; policy files in the tree are not evidence","question":"What is the SOC 2, ISO 27001 or GDPR status, and where is the evidence?"}]},{"id":"06","band":"adequate","name":"Observability & Operations","coverage":"partial","findings":[{"id":"06.1","band":"adequate","layer":"deterministic","title":"No telemetry or error reporting is wired in anywhere","signal":"telemetry_presence","weight":"corroborating","evidence":[{"ref":"telemetry-scan","kind":"metric","detail":"searched 344 tracked text files for 16 known instrumentation libraries; manifests for metrics, tracing and error-reporting families; locked dependencies for the packages that emit; 0 matched"}],"observed":{},"dimension":"06","rationale":"None of 344 readable files references an instrumentation, metrics or error-reporting library. If this system is in production, nobody learns that it broke from the system itself — they learn it from a customer. That is a reliability finding before it is an observability one."},{"id":"06.2","band":"adequate","layer":"deterministic","title":"No structured logging library is in use","signal":"structured_logging","weight":"corroborating","evidence":[{"ref":"logging-scan","kind":"metric","detail":"searched 344 files for 10 structured logging libraries; 0 matched"}],"observed":{},"dimension":"06","rationale":"Nothing references a structured logging library. Logs that are written to be read by a person are not searchable by a machine, which means incident response here is proportional to how well someone remembers the codebase rather than to what the tooling can find."},{"id":"06.8","band":"adequate","layer":"deterministic","title":"One request cannot be followed through the logs","signal":"correlation_ids","weight":"corroborating","evidence":[{"ref":"request ids","kind":"metric","detail":"no request id, correlation id or tracing found"}],"observed":{"tracing":false,"request_id_sites":0},"dimension":"06","rationale":"Nothing in the service carries a request or correlation id, and there is no tracing. 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A redeploy can change the software without a commit, a rollback has nothing to roll back to, and nobody can say from the repository what is running.","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":9,"what_a_person_adds":[{"id":"06.19","kind":"H+","where":"The operations team","measured":"Nothing in the tree backs up or restores data.","question":"How is data backed up, and has a restore ever been rehearsed?"},{"id":"06.10","kind":"H+","where":"The alerting tool and the on-call rota","measured":"No alert rule is defined in the repository.","question":"Where are alerts defined, who receives them, and when did one last fire?"},{"id":"06.29","kind":"H","where":"Pager history and dashboard logs","question":"Are the dashboards opened, the alerts acknowledged and the pages answered?"},{"id":"06.30","kind":"H","where":"Production metrics","question":"Are the service-level objectives actually met?"},{"id":"06.31","kind":"H","where":"Pager exports and interviews","question":"Who carries the pager, and how often does it go off?"},{"id":"06.32","kind":"H","where":"Cloud billing and capacity plans","question":"What does it cost to run, and how much headroom is there?"}]},{"id":"07","band":"not assessable","name":"Fit with the Acquirer","coverage":"none","findings":[],"signals_run":0,"conclusive_signals":0,"what_a_person_adds":[{"id":"07.1","kind":"H+","question":"This is primarily a Java codebase. Does your engineering organisation already run Java in production, or would this be the first?"},{"id":"07.10","kind":"H+","question":"The bulk of this system sits in tduck-api/, tduck-form/, tduck-account/. Which of your existing systems would each of those have to absorb or replace?"},{"id":"07.2","kind":"H+","question":"The repository carries deployment configuration (docker/docker-compose.yaml and 1 more). Does that match your deployment and on-call model, or does it need rehosting first?"},{"id":null,"kind":"H+","question":"What is your tolerance for the findings above remaining unaddressed for the first two quarters after close, given everything else that will compete for this team's time?"},{"id":"07.11","kind":"H","where":"Your architecture","question":"Which of these systems duplicate yours, and which get retired?"},{"id":"07.12","kind":"H","where":"The engagement","question":"What will integration cost, and in what order?"},{"id":"07.13","kind":"H","where":"Your org design","question":"Where does the team land in your organisation, and who reports to whom?"},{"id":"07.14","kind":"H","where":"Deal terms","question":"Are there earn-outs, retention packages or contractor IP to assign?"},{"id":"07.15","kind":"H","where":"Customer contracts","question":"Do customer contracts limit hosting, regions or vendors?"}],"not_assessable_reason":"structurally not assessable from a 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