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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."},{"id":"01.15","band":"adequate","layer":"deterministic","title":"786 errors caught and discarded in product code","signal":"swallowed_errors","weight":"corroborating","context":true,"evidence":[{"ref":"auth/auth_server/controllers/user.py","kind":"path","path":"auth/auth_server/controllers/user.py","detail":"error caught and discarded","line_end":126,"line_start":126},{"ref":"auth/auth_server/swagger/swagger-ui-bundle.js","kind":"path","path":"auth/auth_server/swagger/swagger-ui-bundle.js","detail":"error caught and discarded","line_end":1,"line_start":1},{"ref":"auth/auth_server/swagger/swagger-ui-bundle.js","kind":"path","path":"auth/auth_server/swagger/swagger-ui-bundle.js","detail":"error caught and discarded","line_end":1,"line_start":1}],"observed":{"loc":460833,"files":56,"per_kloc":1.71,"swallowed":786},"dimension":"01","rationale":"786 places catch an error and do nothing with it, across 56 files (1.7 per thousand lines). Each is a failure the system will not report. They surface later as problems nobody can explain, and they are cheap to fix now.","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":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 5,471 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":"strong","name":"Engineering Process & SDLC Maturity","coverage":"high","findings":[],"signals_run":16,"conclusive_signals":16,"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 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":10,"what_a_person_adds":[{"id":"03.29","kind":"H+","where":"The deal terms","measured":"36 people have committed here.","question":"Which of them are you acquiring, and which are you replacing?"},{"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? Commit times cannot say: git keeps no reliable local time."},{"id":"03.32","kind":"H","where":"Interviews","question":"Does the team want to stay after close?"},{"id":"03.33","kind":"H","where":"Time with the team","question":"How are decisions made and disagreements resolved?"}]},{"id":"04","band":"adequate","name":"Product & Engineering Maturity","coverage":"minimal","findings":[{"id":"04.17","band":"adequate","layer":"deterministic","title":"2 pinned runtimes are past end of life","signal":"eol_runtime","weight":"corroborating","context":true,"evidence":[{"ref":"docker_images/etcd/Dockerfile","kind":"path","path":"docker_images/etcd/Dockerfile","detail":"Go 1.24, end of life 2026-02-10"},{"ref":"docker_images/optscale_app/Dockerfile","kind":"path","path":"docker_images/optscale_app/Dockerfile","detail":"Node.js 18, end of life 2025-04-30"}],"observed":{"pinned":["go 1.24","node 18","node 22","python 3.12"],"eol_as_of":"2026-09-24"},"dimension":"04","rationale":"The code is pinned to Go 1.24 (end of life 2026-02-10); Node.js 18 (end of life 2025-04-30). None of these receives security fixes any more; the first stopped on 2025-04-30. Moving off an unsupported runtime is rarely a one-line change, so a buyer should ask whether the upgrade is planned and what it touches.","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":"14% of bug fixes add or change a test","signal":"fixes_with_tests","weight":"corroborating","evidence":[{"ref":"fix commits touching tests","kind":"metric","detail":"25 of 173"}],"observed":{"fixes":173,"share":0.145,"with_tests":25},"dimension":"04","rationale":"Of 173 fixes in the last 24 months, 25 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":15,"what_a_person_adds":[{"id":"04.11","kind":"H+","where":"The team","measured":"252 commits landed in the last year, against 568 the year before (-56%).","question":"Is that maintenance mode, a pivot, or fewer people working on it? 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They are almost always fakes. Ask someone to confirm that none of them works anywhere, because a real key in a development file is still a real key. 2 other matchs set aside: expired tokens, licence tokens a vendor verifies with a public key, or placeholder text where a key would go. None grants access to anything.","locations_withheld":1},{"id":"05.5","band":"adequate","layer":"deterministic","title":"2 credential-shaped strings added in the history sit in tests, examples, documentation or local development settings","signal":"secrets_in_history","weight":"corroborating","context":true,"evidence":[{"kind":"metric","ref":"history","detail":"2 cited: AWS access key, where fakes are usual"}],"observed":{"sample_matches":2,"inert_tokens_set_aside":2},"dimension":"05","rationale":"Strings shaped like credentials appear only where fakes are usual: test fixtures, examples, documentation, placeholders and local stacks. They are almost always fakes. 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None grants access to anything.","context_why":"A note that does not affect this rating: notes like it are common in well-run projects.","locations_withheld":2},{"id":"05.6","band":"adequate","layer":"deterministic","title":"63 Dockerfiles run the application as root","signal":"container_runs_as_root","weight":"corroborating","evidence":[{"ref":"no-USER-instruction","kind":"path","path":"auth/Dockerfile","detail":"runs as root"},{"ref":"no-USER-instruction","kind":"path","path":"bi_exporter/Dockerfile","detail":"runs as root"},{"ref":"no-USER-instruction","kind":"path","path":"bumischeduler/Dockerfile","detail":"runs as root"},{"ref":"no-USER-instruction","kind":"path","path":"bumiworker/Dockerfile","detail":"runs as root"}],"observed":{"rootful":63,"dockerfiles":63},"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":"05.27","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/test_auth.yaml","kind":"path","path":".github/workflows/test_auth.yaml","detail":"action pinned by tag","line_end":23,"line_start":23},{"ref":"rest_api/prepare_clickhouse_local.sh","kind":"path","path":"rest_api/prepare_clickhouse_local.sh","detail":"download piped into a shell","line_end":9,"line_start":9}],"observed":{"action_refs":116,"pipe_to_shell":1,"unpinned_third_party":1},"dimension":"05","rationale":"1 third-party CI action is referenced by a tag or branch rather than a commit, so they run whatever that tag points to on the day; 1 step pipes a download straight into a shell. Tags have been moved to malicious commits in real supply-chain attacks, and a piped script is whatever the server returns that minute. Pinning to a commit is the fix, and it is small.","context_why":"A note that does not affect this rating: notes like it are common in well-run projects."},{"id":"05.20","band":"adequate","layer":"deterministic","title":"1 SQL statement built from strings","signal":"sql_from_strings","weight":"corroborating","context":true,"evidence":[{"ref":"docker_images/cleaninfluxdb/clean-influx-db.py","kind":"path","path":"docker_images/cleaninfluxdb/clean-influx-db.py","detail":"SQL built from a string","line_end":26,"line_start":26}],"observed":{"files":1,"sites":1,"value_interpolated":0},"dimension":"05","rationale":"1 places in product code build SQL by formatting or joining strings rather than passing parameters. In each, what the code shows going in is a table or column name, a constant, or something the line does not show, not a request's value. Ask whether any value reaches these strings, rather than a parameter.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."},{"id":"05.21","band":"adequate","layer":"deterministic","title":"4 shell commands built from strings","signal":"shell_from_strings","weight":"corroborating","context":true,"evidence":[{"ref":"herald/modules/email_sender/sender.py","kind":"path","path":"herald/modules/email_sender/sender.py","detail":"command run through a shell","line_end":78,"line_start":78},{"ref":"herald/run.py","kind":"path","path":"herald/run.py","detail":"command run through a shell","line_end":9,"line_start":9},{"ref":"herald/run.py","kind":"path","path":"herald/run.py","detail":"command run through a shell","line_end":12,"line_start":12}],"observed":{"sites":4},"dimension":"05","rationale":"4 places run a command through a shell (`shell=True`, `os.system`, `exec` with a template) rather than passing arguments. Where any part comes from outside, it is command injection. Ask where each one's input comes from.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."},{"id":"05.34","band":"adequate","layer":"deterministic","title":"53 of 57 Kubernetes workloads declare no resource limits","signal":"resource_limits","weight":"corroborating","context":true,"evidence":[{"ref":"optscale-deploy/optscale/templates/auth.yaml","kind":"path","path":"optscale-deploy/optscale/templates/auth.yaml","detail":"workload with no limits"},{"ref":"optscale-deploy/optscale/templates/bailiff.yaml","kind":"path","path":"optscale-deploy/optscale/templates/bailiff.yaml","detail":"workload with no limits"},{"ref":"optscale-deploy/optscale/templates/bi_exporter.yaml","kind":"path","path":"optscale-deploy/optscale/templates/bi_exporter.yaml","detail":"workload with no limits"}],"observed":{"workloads":57,"without_limits":53},"dimension":"05","rationale":"53 workload manifests set no CPU or memory limits. One pod that leaks memory or spins can starve everything else on its node, and the scheduler cannot plan capacity for what it cannot see.","context_why":"A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated."},{"id":"05.45","band":"adequate","layer":"deterministic","title":"6 workload settings give a container the host","signal":"privileged_workloads","weight":"corroborating","evidence":[{"ref":"optscale-deploy/ansible/roles/k8s-configure/files/nginx-ingress/values.yaml","kind":"path","path":"optscale-deploy/ansible/roles/k8s-configure/files/nginx-ingress/values.yaml","detail":"privileged or host namespace","line_end":108,"line_start":108},{"ref":"optscale-deploy/ansible/roles/k8s-init/templates/weave-daemonset-k8s-1.11.yaml","kind":"path","path":"optscale-deploy/ansible/roles/k8s-init/templates/weave-daemonset-k8s-1.11.yaml","detail":"privileged or host namespace","line_end":128,"line_start":128},{"ref":"optscale-deploy/ansible/roles/k8s-init/templates/weave-daemonset-k8s-1.11.yaml","kind":"path","path":"optscale-deploy/ansible/roles/k8s-init/templates/weave-daemonset-k8s-1.11.yaml","detail":"privileged or host namespace","line_end":165,"line_start":165}],"observed":{"sites":6,"behind_a_setting_or_built_here":0},"unproven":true,"dimension":"05","rationale":"6 places in the deployment configuration run a container privileged or in the host's network, process or IPC namespace. A compromise of that container is a compromise of the machine, and most acquirers' security reviews block it. Node agents (network, storage, monitoring) are excluded."},{"id":"05.48","band":"adequate","layer":"deterministic","title":"73 places insert HTML from a variable without sanitising it","signal":"unsafe_html","weight":"corroborating","context":true,"evidence":[{"ref":"auth/auth_server/swagger/swagger-ui-bundle.js","kind":"path","path":"auth/auth_server/swagger/swagger-ui-bundle.js","detail":"HTML from a variable","line_end":24,"line_start":24},{"ref":"auth/auth_server/swagger/swagger-ui-bundle.js","kind":"path","path":"auth/auth_server/swagger/swagger-ui-bundle.js","detail":"HTML from a variable","line_end":24,"line_start":24},{"ref":"auth/auth_server/swagger/swagger-ui-bundle.js","kind":"path","path":"auth/auth_server/swagger/swagger-ui-bundle.js","detail":"HTML from a variable","line_end":24,"line_start":24}],"observed":{"sites":73},"dimension":"05","rationale":"73 places set HTML from a value that is neither a literal nor passed through a sanitiser. Where the value can come from a user, that is stored cross-site scripting, and it is the first thing a buyer's security review looks for in a frontend.","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":34,"conclusive_signals":29,"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":"05.36","kind":"H+","where":"The cloud console","measured":"Infrastructure code (optscale-deploy/optscale/Chart.yaml) last changed 46 months before the newest commit, while 1,680 commits landed.","question":"Is the infrastructure now changed by hand? Compare the live account with the code."},{"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":"06.2","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 6,045 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":"06.9","band":"adequate","layer":"deterministic","title":"No error reporter is wired in","signal":"error_reporting","weight":"corroborating","context":true,"evidence":[{"ref":"error reporting","kind":"metric","detail":"no error reporter initialised"}],"observed":{"installed":[],"initialised":0,"config_files":0},"dimension":"06","rationale":"Nothing in the service initialises an error reporter (Sentry, Rollbar, Bugsnag, Honeybadger or an APM agent). An exception in production reaches a person only if someone is reading the logs, which usually means a customer reports it first.","context_why":"A note that does not affect this rating: notes like it are common in well-run projects."},{"id":"06.14","band":"adequate","layer":"deterministic","title":"Readiness and liveness probes are identical in 1 of 9 workloads","signal":"probes_identical","weight":"corroborating","evidence":[{"ref":"optscale-deploy/ansible/roles/k8s-configure/files/nginx-ingress/values.yaml","kind":"path","path":"optscale-deploy/ansible/roles/k8s-configure/files/nginx-ingress/values.yaml","detail":"same probe endpoint twice"}],"observed":{"identical":1,"workloads_with_both":9},"dimension":"06","rationale":"Both probes call the same endpoint. When a dependency slows down, the liveness probe fails with the readiness probe, so the platform restarts pods that only needed taking out of rotation, and a partial outage becomes a full one. 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