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Each build pulls whatever the registry serves that day, so the image that ships can change without a commit, and last month's build cannot be reproduced. Pin a version, or a digest."}],"signals_run":11,"conclusive_signals":9,"what_a_person_adds":[{"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":"4 test files / 64 source files"}],"observed":{"tests":4,"source":64,"test_ratio":0.062},"dimension":"02","rationale":"4 test files against 64 source files (6.2%). 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."}],"signals_run":16,"conclusive_signals":14,"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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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. 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Concentration like this is where debt is usually being serviced rather than repaid: the same code is reopened because it is load-bearing, fragile, or both. A repository cannot tell you which — that is a conversation with 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":"04.19","band":"adequate","layer":"deterministic","title":"10% of bug fixes add or change a test","signal":"fixes_with_tests","weight":"corroborating","evidence":[{"ref":"fix commits touching tests","kind":"metric","detail":"8 of 79"}],"observed":{"fixes":79,"share":0.101,"with_tests":8},"dimension":"04","rationale":"Of 79 fixes in the last 24 months, 8 touched a test. A fix without the test that would have caught the bug can quietly come back, and the suite never learns from what went wrong."}],"signals_run":19,"conclusive_signals":14,"what_a_person_adds":[{"id":"04.32","kind":"H","where":"The data room and the team's record of estimates","question":"Can this team deliver the stated roadmap on the stated timeline?"},{"id":"04.31","kind":"H","where":"Budget and roadmap decisions","question":"Does leadership know about the debt, and is time budgeted to repay it?"},{"id":"04.33","kind":"H","where":"Revenue, customer and churn data","question":"Is the engineering shape consistent with the commercial story?"}]},{"id":"05","band":"adequate","name":"Security & Reliability Posture","coverage":"partial","findings":[{"id":"05.6","band":"adequate","layer":"deterministic","title":"3 Dockerfiles run the application as root","signal":"container_runs_as_root","weight":"corroborating","evidence":[{"ref":"no-USER-instruction","kind":"path","path":"clickhouse/Dockerfile","detail":"runs as root"},{"ref":"no-USER-instruction","kind":"path","path":"workstation/postinstall/Dockerfile","detail":"runs as root"},{"ref":"no-USER-instruction","kind":"path","path":"workstation/preinstall/Dockerfile","detail":"runs as root"}],"observed":{"rootful":3,"dockerfiles":5},"dimension":"05","rationale":"No USER instruction switches away from root, so the process runs with full privileges inside the container. 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":"05.25","band":"adequate","layer":"deterministic","title":"2 environment files are committed","signal":"secrets_management_pattern","weight":"corroborating","context":true,"evidence":[{"ref":".env","kind":"path","path":".env","detail":"committed environment file"},{"ref":"optional-modifications/patches/external-kafka/.env.patch","kind":"path","path":"optional-modifications/patches/external-kafka/.env.patch","detail":"committed environment file"}],"observed":{"env_files":2},"dimension":"05","rationale":".env, optional-modifications/patches/external-kafka/.env.patch are tracked in git. Environment files are where credentials usually live, and committing one usually means nobody decided how secrets reach the running application. Whatever is in it is in the history for good. Check 05.1 says whether it holds anything credential-shaped.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."},{"id":"05.27","band":"adequate","layer":"deterministic","title":"The build runs third-party code it does not pin","signal":"supply_chain_pinning","weight":"corroborating","context":true,"evidence":[{"ref":".github/workflows/enforce-license-compliance.yml","kind":"path","path":".github/workflows/enforce-license-compliance.yml","detail":"action pinned by tag","line_end":22,"line_start":22},{"ref":".github/workflows/lock.yml","kind":"path","path":".github/workflows/lock.yml","detail":"action pinned by tag","line_end":11,"line_start":11}],"observed":{"action_refs":17,"pipe_to_shell":0,"unpinned_third_party":4},"dimension":"05","rationale":"4 third-party CI actions are referenced by a tag or branch rather than a commit, so they run whatever that tag points to on the day. Tags have been moved to malicious commits in real supply-chain attacks, and a piped script is whatever the server returns that minute. 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When a dependency slows down, each one holds a worker until the connection gives up, and enough of them take the service down with the dependency.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."},{"id":"05.26","band":"adequate","layer":"deterministic","title":"3 locked dependencies have published vulnerabilities, 4 high or critical","signal":"known_vulnerabilities","weight":"corroborating","context":true,"evidence":[{"ref":"uv.lock","kind":"path","path":"uv.lock","detail":"cryptography 48.0.1: GHSA-g6cj-pr64-35w5 (high), fixed in 50.0.0; a development dependency"},{"ref":"uv.lock","kind":"path","path":"uv.lock","detail":"urllib3 2.7.0: GHSA-8988-9cw3-xx77 (high), fixed in 2.8.0; a development dependency"},{"ref":"uv.lock","kind":"path","path":"uv.lock","detail":"idna 3.11: GHSA-65pc-fj4g-8rjx (moderate), fixed in 3.15; a development dependency"}],"observed":{"advisories":7,"dependencies":46,"high_or_critical":4,"pinned_to_a_commit":0,"ecosystems_not_read":[],"vulnerable_packages":3,"set_aside_not_imported":0,"high_or_critical_shipping":0,"high_or_critical_not_shipped":{"dev":4}},"dimension":"05","rationale":"3 of 46 locked dependencies match 7 published advisories in OSV, 4 of them rated high or critical. A lockfile says which version is installed, not whether the flawed code is reachable from this product, so each needs a look. Most are fixed by an upgrade, and the advisory names the version. None of the high or critical ones is in what the product ships: they are development dependencies.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."},{"id":"05.66","band":"adequate","layer":"deterministic","title":"The licence is FSL-1.1-ALv2: source available, not open source","signal":"license_grant_unclear","weight":"corroborating","context":true,"evidence":[{"ref":"LICENSE.md","kind":"path","path":"LICENSE.md","detail":"105 lines, FSL-1.1-ALv2","line_end":3,"line_start":1}],"observed":{"path":"LICENSE.md","named":true,"identified":"FSL-1.1-ALv2","source_available":true},"dimension":"05","rationale":"LICENSE.md grants FSL-1.1-ALv2: source available, not open source; a competing commercial product or service is not allowed; each version becomes Apache-2.0 two years after its release. The reading comes from the licence's own title and clauses. Whether the terms fit the buyer's intended use, and whether any paid licence transfers with the code, is a question for counsel and the licensor.","context_why":"A note that does not affect this rating: it names the project's licence, a fact for the first screen rather than a weakness."},{"id":"05.60","band":"adequate","layer":"deterministic","title":"Relicensed: BUSL-1.1 → FSL-1.0-ALv2 (2023-11-17) → FSL-1.1-ALv2 (2024-02-27)","signal":"licence_changes","weight":"corroborating","context":true,"evidence":[{"ref":"bd6817e8f","kind":"commit","path":"LICENSE","detail":"BUSL-1.1 from 2020-12-15"},{"ref":"bd1d1d822","kind":"commit","path":"LICENSE","detail":"FSL-1.0-ALv2 from 2023-11-17"},{"ref":"d5e2f8270","kind":"commit","path":"LICENSE.md","detail":"FSL-1.1-ALv2 from 2024-02-27"}],"observed":{"since":"2024-02-27","latest":"FSL-1.1-ALv2","weaker":false,"narrowed_at":null,"narrowed_days":null,"licence_versions":3,"source_available":true,"narrowed_recently":false,"unreleased_changes":0},"dimension":"05","rationale":"The root licence changed 2 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":"1 advisory against this project in the last 24 months, 1 high or critical","signal":"advisory_record","weight":"corroborating","context":true,"evidence":[{"ref":"CVE-2025-22146","kind":"advisory","detail":"2025-01-15: CVE-2025-22146 (critical): Sentry is a developer-first error tracking and performance monitoring tool. A critical vulnerability was discovered in the SAML SSO implementation of Sentry. It"}],"observed":{"newest":"2025-01-15","critical":1,"affecting":0,"could_not_tell":1,"last_24_months":1,"sources_failed":[],"known_exploited":0,"high_or_critical":1,"record_incomplete":["NVD: 33 records name self-hosted with nothing tying them to this repository (CVE-2025-0337, CVE-2025-11449, CVE-2025-11450, …)"]},"dimension":"05","rationale":"The newest was published on 2025-01-15. 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 1 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 26.10.0. Answer lives in: the release you run, set against each fixed version. The record is incomplete: NVD: 33 records name self-hosted with nothing tying them to this repository (CVE-2025-0337, CVE-2025-11449, CVE-2025-11450, …).","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":19,"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":"06.8","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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Does your engineering organisation already run Python in production, or would this be the first?"},{"id":"07.10","kind":"H+","question":"The bulk of this system sits in _integration-test/, install/, sentry/. 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 (clickhouse/Dockerfile and 6 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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