Nothing significant. Questions worth asking about Organization & Key-Person Risk, Security & Reliability Posture.
106 checks ran across 6 assessable dimensions. None found a significant problem; 2 raised something worth a question. 6 findings, each with evidence. One dimension cannot be assessed without an acquirer.
| Dimension | Rating | ||
|---|---|---|---|
| 01 | Architecture & Codebase — including AI provenance | strong | |
| 02 | Engineering Process & SDLC Maturity | strong | |
| 03 | Organization & Key-Person Risk | adequate | |
| 04 | Product & Engineering Maturity | strong | |
| 05 | Security & Reliability Posture | adequate | |
| 06 | Observability & Operations | not assessable | |
| 07 | Fit with the Acquirer | not assessable |
- 7% of non-merge commits carry any trailer at all
- low trailer coverage: the convention may not be in consistent use
- no widespread author/committer date divergence
- the declared share is neither decisive nor negligible, so the true figure is more sensitive to undeclared work
- deep scan blamed 181 of 181 counted files
Architecture & Codebase — including AI provenance
01 · strong · ratings ↑No finding. 11 checks ran and none fired; the rejection log below says why each did not.
Engineering Process & SDLC Maturity
02 · strong · ratings ↑No finding. 16 checks ran and none fired; the rejection log below says why each did not.
Organization & Key-Person Risk
03 · adequate · ratings ↑Bus factor 1: recent work is concentrated in one contributor
adequateIn the last 24 months, one contributor authored more than half of 157 non-merge commits among 32 authors; across all history, a quarter or more of 4,198. In a project with 32 recent contributors and 10 years of history, that is a question about one person's role rather than a fragile team — but it is the question to ask.
| git shortlog -sn | last 24 months: top author more than half of 157 commits; bus factor 1; 32 authors |
Respond to this finding
Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.
An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.
The contributor who wrote a quarter or more of this has not committed here for more than three years
adequateOne person authored a quarter or more of 4,198 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.
| last-commit-by-top-author | last commit more than three years ago, measured to the survey |
| git shortlog -sn | top author a quarter or more of 4,198 commits |
Respond to this finding
Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.
An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.
The bus factor fell from 4 to 1
adequateYear by year, newest first, the number of people who wrote half the changes was 1, 1, 4, 3. The team narrowed to one person, which is a different risk from one that always was: the code does not say why.
| bus factor by year | 1, 1, 4, 3 |
Respond to this finding
Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.
An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.
Regular contributors fell from 5 to 2 in a year
adequate3 people who committed regularly the year before made no commits in the last year, and 1 new regular contributors arrived. Ask whether the work they did is still covered.
| regular contributors by year | 5 then 2; 3 stopped committing, 1 began |
Respond to this finding
Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.
An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.
Product & Engineering Maturity
04 · strong · ratings ↑No finding. 19 checks ran and none fired; the rejection log below says why each did not.
Security & Reliability Posture
05 · adequate · ratings ↑Licence text does not match a standard licence
adequateLICENSE.md exists but its text does not match any standard licence. A bespoke or hand-edited licence is not wrong, but it cannot be cleared by recognising its name: counsel has to read it, and until they do neither side knows precisely what rights transfer with the code.
| LICENSE.md | LICENSE.md:1 — 22 lines, unrecognised |
Respond to this finding
Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.
An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.
The build runs third-party code it does not pin
adequate6 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. Pinning to a commit is the fix, and it is small.
A note that does not affect this rating: notes like it are common in well-run projects.
| .github/workflows/ci.yml | .github/workflows/ci.yml:45 — action pinned by tag |
| .github/workflows/ci.yml | .github/workflows/ci.yml:49 — action pinned by tag |
Respond to this finding
Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.
An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.
Observability & Operations
06 · not assessable · ratings ↑Not rated: only 4 of 16 checks could reach a conclusion here; the rest do not apply to this repository or could not read it. What a person adds here.
Fit with the Acquirer
07 · not assessable · ratings ↑Not rated: structurally not assessable from a repository. What a person adds here.
Check it on the running system
1 check against the running system follow from the findings above: what a buyer's engineer will try, how to run it first, and what to have ready. A paid survey of this repository includes them.
A paid survey of a public repository is also reviewed: a language model reads each finding against the code and withdraws only findings it judges the code contradicts, each listed with its reason. The review is a language model's reading of the findings against the code, and it can be wrong. It never adds a finding, never raises a band, and never removes a finding from a proven check or an advisory that affects the surveyed version.
What a person adds
The survey reads what the repository can show. The code cannot settle these questions, and on them this report states nothing. Each says where its answer lives: your own engineer, the company, or an assessor you choose can settle it. Questions marked measured open with something this repository shows.
Architecture & Codebase — including AI provenance
01 · full coverage- Is the architecture right for the next three years of the product?
- Were the home-grown components reasonable choices when they were made, and are they now?
Engineering Process & SDLC Maturity
02 · high coverage- Is review real or a rubber stamp? Comment depth and time to approve need the pull request history.
- Is delivery planned and measured, or heroic?
- How are incidents run, reviewed and learned from?
Organization & Key-Person Risk
03 · partial coverage- measured 265 people have committed here. Which of them are you acquiring, and which are you replacing?
- Who mentors whom, and would that survive a departure?
- Can the team grow, and who stands behind the top three contributors?
- Is the seniority mix sound, and will pay survive your salary bands?
- Is the pace sustainable? Commit times cannot say: git keeps no reliable local time.
- Does the team want to stay after close?
- How are decisions made and disagreements resolved?
Product & Engineering Maturity
04 · minimal coverage- Can this team deliver the stated roadmap on the stated timeline?
- Does leadership know about the debt, and is time budgeted to repay it?
- Is the engineering shape consistent with the commercial story?
Security & Reliability Posture
05 · partial coverage- What has actually broken, how often, and how badly?
- What did external testing find, and was it fixed?
- What is the SOC 2, ISO 27001 or GDPR status, and where is the evidence?
Observability & Operations
06 · partial coverageNot rated: only 4 of 16 checks could reach a conclusion here; the rest do not apply to this repository or could not read it.
- Are the dashboards opened, the alerts acknowledged and the pages answered?
- Are the service-level objectives actually met?
- Who carries the pager, and how often does it go off?
- What does it cost to run, and how much headroom is there?
Fit with the Acquirer
07 · none coverageNot rated: structurally not assessable from a repository.
- The bulk of this system sits in src/, perf/, ext/. Which of your existing systems would each of those have to absorb or replace?
- 69% of lines added in the last 12 months (5% 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?
- Nothing in the repository says how this is deployed. Is it shipped as a library, a binary or a service, and if it runs somewhere, who owns that environment?
- 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?
- Which of these systems duplicate yours, and which get retired?
- What will integration cost, and in what order?
- Where does the team land in your organisation, and who reports to whom?
- Are there earn-outs, retention packages or contractor IP to assign?
- Do customer contracts limit hosting, regions or vendors?
A human assessment is Borehole's own paid service, €12,000+ (total price is determined per engagement; travel billed at cost). It is not independent of this report: the same business produced both. It is a separate contract, with its own scope, terms and reliance.
Embed the badge
Tied to this commit and this date, and it fades after 90 days — an honest badge is one that expires. A repository with significant findings gets a neutral "read" badge rather than a red one: the library is where the range is visible, not someone else's README.
[](/r/fluxml/flux.jl/b617b33)
If you embed it: link it to the report, remove it if the report is delisted, and do not present it as a certification or an endorsement.
Rejection log — 100 signals that ran and did not fire
Appendix: rejection log — 100 signals that ran and did not fire
Published on purpose. A signal that looked and decided not to fire has told you something, and this is the calibration data behind every threshold above.
Looked, and found nothing — 56
| Signal | What it found |
|---|---|
| 04.hotspot_concentration | change is spread across the codebase rather than pooling in a few filesfiles 541 · top5 share 0.166 |
| 04.debt_markers | debt markers are sparsemarkers 11 · per kloc 0.43 · lines read 25,867 |
| 04.test_growth | test effort kept pace with code writtenlate test per code 0.495 · early test per code 0.351 |
| 04.churn_trend | rework is not rising against new worklate delete per insert 0.747 · early delete per insert 0.78 |
| 04.fixes_with_tests | fixes usually come with a testfixes 40 · share 0.4 · with tests 16 |
| 06.telemetry_presence | this repository does not deploy a running service, so instrumentation is not expected of itbasis nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere · files read 167 |
| 06.healthcheck_presence | not a running service, so a health endpoint is not expectedbasis nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere |
| 06.usage_reporting_default | the product's code names no reporting hostsettings on 0 · settings off 0 |
| 06.migrate_on_start | migrations do not run at container start |
| 03.active_contributors | more than one contributor active in the trailing yearall time 265 · active 12mo 14 |
| 03.knowledge_silos | every substantial directory has been touched by more than one personauthors 265 · directories 5 |
| 03.drive_by_contributors | an open contributor base, where one-commit contributors are normalauthors 265 · one off share 0.392 |
| 03.critical_path_ownership | more than one person changes the critical pathsauthors 32 |
| 03.second_contributor_attrition | the second and third contributors are still active |
| 02.merge_discipline | a meaningful share of recent change carries evidence of reviewmerges 4 · window last 24 months · with tracked 1 |
| 02.ci_presence | CI configuration is present in the working treecount 7 |
| 02.test_presence | tests are present in a normal proportion to sourcetests 53 · source 97 · test ratio 0.546 |
| 02.release_cadence | tags are presenttags 121 |
| 02.conventional_commits | commit subjects generally carry contentsampled 4,254 · low content share 0.156 |
| 02.branch_protection_hints | process scaffolding is present in the repository |
| 02.ci_runs_tests | CI invokes a test runnerconfigs 7 · with tests 1 |
| 02.skipped_tests | few tests are switched offfocused 0 · skipped 0 · test files 54 |
| 02.ci_test_gating | no test run in CI is written so that it cannot failconfigs 7 |
| 02.revert_share | change is rarely undoneshare 0.0 · reverts 0 · recent commits 157 |
| 02.flaky_test_markers | tests are not retried until they passtest retries 0 · suite retries 0 |
| 02.commit_size | changes arrive in reviewable sizesshare 0.0 · commits 146 · over 2000 lines 0 |
| 01.burst_import | no commit run met both the rate and the net-addition thresholdgap seconds 180 · min add ratio 3.0 · min net added 2,000 |
| 01.initial_dump | first commit is not a disproportionate share of the codebaseinsertions 0 · share of insertions 0.0 |
| 01.message_uniformity | commit subjects vary in wording and lengthlength stdev 15.28 · repeat share 0.169 |
| 01.revision_depth | most files were revisited after they were first writtenfiles seen 56 · write once share 0.089 |
| 01.oversized_modules | no module is an outlier against this codebase's own normlargest 968 · threshold 1,000 · median lines 87 |
| 01.duplicated_blocks | little shipping code is repeated verbatim across filesshare 0.0041 · product files 44 · distinct blocks 7,028 |
| 01.unfinished_migration | no language migration is stalled halfway |
| 01.weights_in_git | no model weights are committedfiles 0 |
| 05.committed_secrets | no credential-shaped strings outside test and fixture pathsnote the working tree only; the history is 05.5 · patterns 8 · files read 167 |
| 05.security_guardrails | at least one standard guard rail is configured |
| 05.license_present | a licence file is presentfound True |
| 05.secrets_in_history | no credential-shaped string was ever added outside test and fixture pathspatterns 8 · truncated False · added lines 76,398 |
| 05.secrets_management_pattern | no environment file is committed outside tests and examplesenv files 0 |
| 05.privileged_workloads | no workload runs privileged or in the host's namespacessites 0 · behind a setting or built here 0 |
| 05.credentials_in_deploy_config | deployment configuration references secrets, never holds themfiles 0 · sites 0 |
| 05.signing_material | no signing keystore or profile is committedfiles 0 |
| 05.license_vendored_unlicensed | no vendored third-party code is committedcomponents 0 |
| 05.committed_native_libraries | no widely used compiled library is committed to the productlibraries 0 |
| 04.dependency_churn | few dependencies were added and dropped within 60 daysdependencies seen 4 · added in two years 4 · removed within 60 days 0 |
| 04.ci_platforms_dropped | no platform was dropped from CI in the last two years |
| 04.repository_status | the README's first screen states no end, move or freezestatements 0 |
| 02.development_elsewhere | nothing says development happens elsewhereno pr statements 0 · mirror statements 0 · replayed commit share 0.0 |
| 05.licence_changes | the root licence has not changed in the history readlicence versions 0 · unreleased changes 0 |
| 05.paid_edition | no directory carries a separate paid-edition licencedirectories 0 |
| 04.releases_stopped | releases keep pace with developmentmedian gap days 42.0 · days since last tag 20 · commits last 90 days 40 |
| 04.release_branch | the newest release was cut from the branch surveyedelsewhere 7 · on branch 113 · tags in window 120 |
| 03.single_maintainer | no file says one person maintains itstatements 0 |
| 05.project_advisories | no published advisory affects the surveyed versionaffecting 0 · exploited 0 · advisories 0 |
| 05.advisory_record | no advisory against the project in the last 24 monthscritical 0 · affecting 0 · could not tell 0 |
| 05.project_exploited | no affecting advisory is on CISA's Known Exploited listexploited 0 |
Could not conclude, or did not apply — 44
Not a clean result. Each says why it could not answer here.
| Signal | Why |
|---|---|
| 04.dependency_sprawl | no dependency manifest of the product's own was found |
| 04.eol_runtime | no pinned runtime version to check |
| 04.fix_share_trend | fewer than six busy quarters to compare |
| 04.schema_churn | no schema migrations to read |
| 04.compat_layers | a library, whose compatibility code is usually deliberate |
| 04.dependency_redundancy | no JavaScript manifest to read |
| 06.structured_logging | not assessed for Julia, the language the product is written in: this check's patterns read other languages only |
| 06.telemetry_depth | not expected of it: nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere |
| 06.print_logging | not expected of it: nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere |
| 06.correlation_ids | not expected of it: nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere |
| 06.error_reporting | not expected of it: nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere |
| 06.alert_rules | not expected of it: nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere |
| 06.deployed_image_floats | not expected of it: nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere |
| 06.probes_identical | no Kubernetes probes |
| 06.single_replica | no Kubernetes deployments |
| 06.environment_branching | not expected of it: nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere |
| 06.release_markers | not expected of it: nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere |
| 06.feature_flags | no feature-flag service; flags may live elsewhere |
| 02.dependency_update_cadence | no lockfile to date |
| 02.lint_in_build | too small, or no CI to wire a linter into (02.2) |
| 02.long_lived_branches | too few merges to judge (squash and rebase leave none) |
| 01.swallowed_errors | not assessed for Julia, the language the product is written in: this check's patterns read other languages only |
| 01.build_reproducibility | no product Dockerfile to read |
| 01.notebook_outputs | not a data or machine-learning repository |
| 05.dependency_pinning | no manifest whose pinning can be read without a lockfile |
| 05.container_runs_as_root | no Dockerfile to read |
| 05.outbound_timeouts | not a running service |
| 05.migration_reversibility | too few migrations to judge |
| 05.sql_from_strings | not a running service; a library that builds SQL is doing its job |
| 05.shell_from_strings | not assessed for Julia, the language the product is written in: this check's patterns read other languages only |
| 05.unsafe_deserialization | not assessed for Julia, the language the product is written in: this check's patterns read other languages only |
| 05.tls_verification_off | not assessed for Julia, the language the product is written in: this check's patterns read other languages only |
| 05.resource_limits | no Kubernetes workload manifests |
| 05.known_vulnerabilities | no lockfile this survey can read, or a collector older than 0.4.0 |
| 05.public_env_secret | not a frontend |
| 05.unsafe_html | not a frontend |
| 05.source_maps_shipped | not a frontend |
| 05.cleartext_traffic | not a mobile app |
| 05.dataset_provenance | not a data or machine-learning repository |
| 05.license_copyleft_inherited | no third-party code is committed to this repository, so the licences it depends on are resolved at build time and are not readable here |
| 05.license_manifest_conflict | no packaging manifest states a licence |
| 04.flags_accumulating | few or no feature flags in the history |
| 04.api_versions_coexisting | not a running service |
| 04.deprecations_lingering | a library, which keeps deprecated interfaces for its users |
Anyone can check this report against the authoritative record — click the stamp, or enter ER7X-RAAE-C6EJ at borehole.dev/verify.
The code commits to the 106 checks this run performed, the bands they produced, and the commit they were read at. It does not cover checks written since.
A survey is a reading by a particular version of the assessor. Older readings are kept rather than replaced, because a verification mark attests to the survey it was issued for — overwriting one would make every code already in circulation read as tampered.
| Read | Assessor | Findings | Band |
|---|---|---|---|
| 2026-10-04 · shown | borehole 0.7.13 | 6 | adequate |
4 earlier (show)
| 2026-10-03 | borehole 0.7.12 | 6 | adequate |
| 2026-10-03 | borehole 0.7.11 | 6 | adequate |
| 2026-10-02 | borehole 0.7.10 | 6 | adequate |
| 2026-10-01 | borehole 0.7.9 | 6 | adequate |
Where this scan ran
This scan ran on ordinary cloud infrastructure (cloud-run), not in a hardware-isolated confidential VM. Nothing about it is attested by Google.
What an attested survey proves, and what it does not.
What this scan did with the repository — 3 steps
Written by the steps themselves as they ran, not described afterwards. A hand-written account of a data flow drifts the first time somebody changes the flow and not the account.
| At | Step | Detail |
|---|---|---|
| 0.0s | re-read from the facts kept at the last survey; nothing was cloned | facts version: 1d7c04ef8dca7905 |
| 2.4s | ran the deterministic checks | blame pass: Trueread working tree: False |
| 2.4s | recorded where this scan ran | attested: Falseenvironment: cloud-run |
Total 2.4s ·source content sent off this machine: none · calls to a language model: 0 · the clone was deleted when the survey ended
An automated reading of a repository's code and its history up to one commit, with public advisory records. It may be wrong, it is not legal, financial, investment or security advice, and it does not replace diligence by a qualified person. It is provided for information: nobody may rely on it (Borehole's terms, section 3).