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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":10,"what_a_person_adds":[{"id":"01.38","kind":"H+","where":"The team","measured":"No architecture or design document is in the tree, across 2,473 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":"strong","name":"Engineering Process & SDLC Maturity","coverage":"high","findings":[{"id":"02.16","band":"adequate","layer":"deterministic","title":"Tests are retried until they pass","signal":"flaky_test_markers","weight":"corroborating","context":true,"evidence":[{"ref":".github/workflows/integration-package-tests.yaml","kind":"path","path":".github/workflows/integration-package-tests.yaml","detail":"test retry","line_end":127,"line_start":127}],"observed":{"test_retries":0,"suite_retries":12},"dimension":"02","rationale":"The suite is configured to retry failing tests (.github/workflows/integration-package-tests.yaml). A retry turns a flaky test green without saying why it failed, so a green build means the tests passed eventually. Ask how many retries a typical run needs, and which tests need them.","context_why":"A note that does not affect this rating: notes like it are common in well-run projects."}],"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? Comment depth and time to approve need the pull request history."},{"id":"02.38","kind":"H","where":"The issue tracker: backlog, sprint history, estimate accuracy","question":"Is delivery planned and measured, or heroic?"},{"id":"02.37","kind":"H","where":"Tickets, chat and postmortems","question":"How are incidents run, reviewed and learned from?"}]},{"id":"03","band":"strong","name":"Organization & Key-Person Risk","coverage":"partial","findings":[],"signals_run":10,"conclusive_signals":10,"what_a_person_adds":[{"id":"03.29","kind":"H+","where":"The deal terms","measured":"462 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":"strong","name":"Product & Engineering Maturity","coverage":"minimal","findings":[{"id":"04.38","band":"adequate","layer":"deterministic","title":"11 files still carry code deprecated more than two years ago","signal":"deprecations_lingering","weight":"corroborating","context":true,"evidence":[{"ref":"src/prefect/task_runners.py","kind":"path","path":"src/prefect/task_runners.py","detail":"deprecated since Jun 2022"},{"ref":"src/prefect/docker/__init__.py","kind":"path","path":"src/prefect/docker/__init__.py","detail":"deprecated since Jun 2022"},{"ref":"src/prefect/logging/configuration.py","kind":"path","path":"src/prefect/logging/configuration.py","detail":"deprecated since Nov 2022"},{"ref":"src/prefect/utilities/annotations.py","kind":"path","path":"src/prefect/utilities/annotations.py","detail":"deprecated since Jan 2023"},{"ref":"src/prefect/_internal/compatibility/deprecated.py","kind":"path","path":"src/prefect/_internal/compatibility/deprecated.py","detail":"deprecated since Feb 2023"}],"observed":{"older_than_two_years":11,"files_with_deprecations":94},"dimension":"04","rationale":"11 files were marked deprecated over two years ago and still are, the oldest since Jun 2022. A deprecation is a promise to remove. Ask what still depends on these, and whether removing them is scheduled.","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":19,"conclusive_signals":17,"what_a_person_adds":[{"id":"04.11","kind":"H+","where":"The team","measured":"851 commits landed in the last year, against 1,665 the year before (-49%).","question":"Is that maintenance mode, a pivot, or fewer people working on it? The count looks the same for all three."},{"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":"05.1","band":"adequate","layer":"deterministic","title":"4 credential-shaped strings in the tree sit in tests, examples, documentation or local development settings","signal":"committed_secrets","weight":"corroborating","evidence":[{"kind":"metric","ref":"private key block","detail":"4 cited: private key block, where fakes are usual"}],"observed":{"sample_matches":4,"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. 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":4},{"id":"05.6","band":"adequate","layer":"deterministic","title":"5 Dockerfiles run the application as root","signal":"container_runs_as_root","weight":"corroborating","evidence":[{"ref":"no-USER-instruction","kind":"path","path":"Dockerfile","detail":"runs as root"},{"ref":"no-USER-instruction","kind":"path","path":"client/Dockerfile","detail":"runs as root"},{"ref":"no-USER-instruction","kind":"path","path":"src/integrations/prefect-aws/Dockerfile","detail":"runs as root"},{"ref":"no-USER-instruction","kind":"path","path":"src/integrations/prefect-azure/Dockerfile","detail":"runs as root"}],"observed":{"rootful":5,"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":"1 environment file is committed","signal":"secrets_management_pattern","weight":"corroborating","context":true,"evidence":[{"ref":"ui-v2/.env","kind":"path","path":"ui-v2/.env","detail":"committed environment file"}],"observed":{"env_files":1},"dimension":"05","rationale":"ui-v2/.env is 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. 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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":"05.26","band":"adequate","layer":"deterministic","title":"15 locked dependencies have published vulnerabilities, 6 high or critical in what ships","signal":"known_vulnerabilities","weight":"corroborating","evidence":[{"ref":"uv.lock","kind":"path","path":"uv.lock","detail":"pyjwt 2.13.0: GHSA-ffc3-869f-jxw9 (critical), fixed in 2.14.0; an optional extra"},{"ref":"uv.lock","kind":"path","path":"uv.lock","detail":"urllib3 2.7.0: GHSA-8988-9cw3-xx77 (high), fixed in 2.8.0"},{"ref":"ui-v2/package-lock.json","kind":"path","path":"ui-v2/package-lock.json","detail":"lodash-es 4.17.23: GHSA-r5fr-rjxr-66jc (high), fixed in 4.18.0"}],"observed":{"advisories":59,"dependencies":1087,"high_or_critical":21,"pinned_to_a_commit":0,"ecosystems_not_read":[],"vulnerable_packages":15,"set_aside_not_imported":0,"high_or_critical_shipping":6,"high_or_critical_not_shipped":{"build":1,"extra":14}},"unproven":true,"dimension":"05","rationale":"15 of 1,087 locked dependencies match 59 published advisories in OSV, 21 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."},{"id":"05.65","band":"adequate","layer":"deterministic","title":"8 advisories against this project in the last 24 months, 4 high or critical","signal":"advisory_record","weight":"corroborating","context":true,"evidence":[{"ref":"CVE-2026-72538","kind":"advisory","detail":"2026-08-11: CVE-2026-72538 (high): An argument injection vulnerability in PrefectHQ Prefect through 3.8.2 allows authenticated users to achieve remote code execution via the git_clone pull step b"},{"ref":"GHSA-c635-393c-hcx2","kind":"advisory","detail":"2026-06-02: GHSA-c635-393c-hcx2 (high), fixed in 3.6.22.dev7: Prefect has an Authentication Middleware Bypass when URL paths are appended with 'health' or 'ready'"},{"ref":"GHSA-cw25-2p92-7f75","kind":"advisory","detail":"2026-05-26: GHSA-cw25-2p92-7f75 (high): Prefect has an Argument Injection issue"},{"ref":"GHSA-6rcx-55r6-jx65","kind":"advisory","detail":"2026-05-04: GHSA-6rcx-55r6-jx65 (low), fixed in 3.6.25.dev7: Prefect Git Argument Injection in GitRepository Pull Steps"},{"ref":"GHSA-6rr6-v7cj-mxpg","kind":"advisory","detail":"2026-05-04: GHSA-6rr6-v7cj-mxpg (moderate), fixed in 3.6.22: Prefect Auth Bypass via endswith() Health Check Exemption"}],"observed":{"newest":"2026-08-11","critical":0,"affecting":0,"could_not_tell":1,"last_24_months":8,"sources_failed":[],"known_exploited":0,"high_or_critical":4,"record_incomplete":["NVD: 2 records name prefect with nothing tying them to this repository (CVE-2026-3515, CVE-2026-5366)"]},"dimension":"05","rationale":"The newest was published on 2026-08-11. 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 3.8.7. Answer lives in: the release you run, set against each fixed version. The record is incomplete: NVD: 2 records name prefect with nothing tying them to this repository (CVE-2026-3515, CVE-2026-5366).","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":26,"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":"06.2","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 4,005 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."}],"signals_run":16,"conclusive_signals":12,"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":"Alert rules are defined in the repository.","question":"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 Python codebase, with TypeScript alongside (49% of source files). 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 src/, ui/, ui-v2/. Which of your existing systems would each of those have to absorb or replace?"},{"id":"07.9","kind":"H+","question":"80% of lines added in the last 12 months (20% of added lines) came through AI-declared commits. Does your organisation have a policy on inheriting and maintaining that code, and does your engineering team's tooling match how it was produced?"},{"id":"07.2","kind":"H+","question":"The repository carries deployment configuration (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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