Nothing significant. Questions worth asking about Organization & Key-Person Risk.
105 checks ran across 6 assessable dimensions. None found a significant problem; 1 raised something worth a question. 3 findings, each with evidence. One dimension cannot be assessed without an acquirer.
- 1 finding from checks Borehole's calibration found wrong more often than right is no longer published.
| 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 | strong | |
| 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
- deep scan blamed 304 of 304 counted files
Architecture & Codebase — including AI provenance
01 · strong · ratings ↑src/controller/interstitials-controller.ts is 3,174 lines, 16× this codebase's median file
adequateThe median source file here is 193 lines. 5 files exceed 1,930 lines, the largest being 3,174. 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.
A note that does not affect this rating: measured against its own codebase's median, it is below the 85th percentile of 382 surveyed projects' largest files, where this check begins to count.
| line-count | src/controller/interstitials-controller.ts:1 — 3,174 lines (16× median) |
| line-count | src/controller/base-stream-controller.ts:1 — 2,820 lines (14× median) |
| line-count | src/controller/buffer-controller.ts:1 — 2,516 lines (13× median) |
| line-count | src/utils/mp4-tools.ts:1 — 2,309 lines (11× median) |
| line-count | src/controller/eme-controller.ts:1 — 2,025 lines (10× median) |
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.
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 409 non-merge commits among 73 authors; across all history, a quarter or more of 6,408. In a project with 73 recent contributors and 12 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 409 commits; bus factor 1; 73 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 6,408 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 6,408 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.
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 · strong · ratings ↑No finding. 34 checks ran and none fired; the rejection log below says why each did not.
Observability & Operations
06 · not assessable · ratings ↑Not rated: only 5 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.
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- measured The tree carries design documentation (docs/design.md). Does it match what the team believes today? Ask them to walk through it against the code.
- 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 379 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 5 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.
- This is primarily a TypeScript codebase. Does your engineering organisation already run TypeScript in production, or would this be the first?
- The bulk of this system sits in src/, api-extractor/. Which of your existing systems would each of those have to absorb or replace?
- 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.
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.
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/video-dev/hls.js/98d7fc8)
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 — 102 signals that ran and did not fire
Appendix: rejection log — 102 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 — 71
| Signal | What it found |
|---|---|
| 04.hotspot_concentration | change is spread across the codebase rather than pooling in a few filesfiles 986 · top5 share 0.129 |
| 04.debt_markers | debt markers are sparsemarkers 24 · per kloc 0.21 · lines read 112,318 |
| 04.test_growth | test effort kept pace with code writtenlate test per code 0.527 · early test per code 0.2 |
| 04.churn_trend | rework is not rising against new worklate delete per insert 0.545 · early delete per insert 0.72 |
| 04.eol_runtime | every pinned runtime is still supportedeol as of 2026-09-24 |
| 04.fixes_with_tests | fixes usually come with a testfixes 169 · share 0.414 · with tests 70 |
| 04.fix_share_trend | fixing is not crowding out building |
| 04.dependency_redundancy | one library per job, mostly |
| 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 290 |
| 06.structured_logging | not a running service; structured logging is not expected of a librarybasis nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere |
| 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 379 · active 12mo 48 |
| 03.knowledge_silos | every substantial directory has been touched by more than one personauthors 379 · directories 5 |
| 03.drive_by_contributors | an open contributor base, where one-commit contributors are normalauthors 379 · one off share 0.491 |
| 03.critical_path_ownership | more than one person changes the critical pathsauthors 73 |
| 03.second_contributor_attrition | the second and third contributors are still active |
| 03.bus_factor_trend | the team has not narrowed to one person |
| 03.joiners_and_leavers | the team is not shrinkingleft 3 · joined 9 · regular last year 10 |
| 02.merge_discipline | a meaningful share of recent change carries evidence of reviewmerges 478 · window last 24 months · with tracked 111 |
| 02.ci_presence | CI configuration is present in the working treecount 3 |
| 02.test_presence | tests are present in a normal proportion to sourcetests 83 · source 228 · test ratio 0.364 |
| 02.release_cadence | tags are presenttags 347 |
| 02.conventional_commits | commit subjects generally carry contentsampled 8,770 · low content share 0.063 |
| 02.branch_protection_hints | process scaffolding is present in the repository |
| 02.ci_runs_tests | CI invokes a test runnerconfigs 3 · with tests 1 |
| 02.skipped_tests | few tests are switched offfocused 0 · skipped 0 · test files 91 |
| 02.ci_test_gating | no test run in CI is written so that it cannot failconfigs 3 |
| 02.revert_share | change is rarely undoneshare 0.002 · reverts 1 · recent commits 409 |
| 02.dependency_update_cadence | dependencies move with the codelockfiles 1 · commits since 11 · days since lockfile changed 2 |
| 02.flaky_test_markers | tests are not retried until they passtest retries 0 · suite retries 0 |
| 02.lint_in_build | a linter or formatter runs in the buildwired 2 · ci configs 3 · product files 145 |
| 02.long_lived_branches | the typical branch reaches the trunk quicklyshare 0.011 · merges 476 · long lived 5 |
| 02.commit_size | changes arrive in reviewable sizesshare 0.005 · commits 385 · over 2000 lines 2 |
| 01.burst_import | the largest burst was documentation and notebooks (100% of it), which explains the rate: translations arrive from a vendor in bulk, dependencies and generated code are committed whole, a merged pull request is dated when it merged, not when it was written, a branch merged by a merge commit was reviewed as one piece, and an export or mirror tool dates history when it replays itlargest commits 3c138de..3b07036 · bursts explained 1 · largest net added 2,510 |
| 01.initial_dump | first commit is not a disproportionate share of the codebaseinsertions 2 · share of insertions 0.0 |
| 01.message_uniformity | commit subjects vary in wording and lengthlength stdev 35.67 · repeat share 0.145 |
| 01.revision_depth | most files were revisited after they were first writtenfiles seen 169 · write once share 0.101 |
| 01.duplicated_blocks | little shipping code is repeated verbatim across filesshare 0.0019 · product files 145 · distinct blocks 42,206 |
| 01.swallowed_errors | errors are rarely thrown awayloc 112,607 · files 0 · per kloc 0.0 |
| 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 290 |
| 05.security_guardrails | at least one standard guard rail is configured |
| 05.dependency_pinning | a lockfile is committed, so builds are reproduciblelockfile True |
| 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 9,424,850 |
| 05.secrets_management_pattern | no environment file is committed outside tests and examplesenv files 0 |
| 05.supply_chain_pinning | third-party build steps are pinned, or fewaction refs 39 · pipe to shell 0 · unpinned third party 0 |
| 05.shell_from_strings | product code does not build shell commands from stringssites 0 |
| 05.unsafe_deserialization | no code-executing deserialiser in product codesites 0 |
| 05.tls_verification_off | no TLS verification is switched off in product codefiles 0 · sites 0 · pinned instead 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_manifest_conflict | manifest and licence file agree on Apache-2.0license Apache-2.0 |
| 05.license_vendored_unlicensed | no vendored third-party code is committedcomponents 0 |
| 05.license_grant_unclear | the licence is recognisable as Apache-2.0class permissive · license Apache-2.0 |
| 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 77 · added in two years 8 · removed within 60 days 0 |
| 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 | relicensed only between permissive licences: MIT → Apache-2.0 (2015-09-16)latest Apache-2.0 · weaker False · licence versions 2 |
| 05.paid_edition | no directory carries a separate paid-edition licencedirectories 0 |
| 04.releases_stopped | releases keep pace with developmentmedian gap days 8.5 · days since last tag 42 · commits last 90 days 178 |
| 04.release_branch | the newest release was cut from the branch surveyedelsewhere 51 · on branch 287 · tags in window 338 |
| 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 1 |
| 05.advisory_record | 1 advisory in the last 24 months, none high or critical, none affecting the surveyed version; the newest on 2026-04-23newest 2026-04-23 · critical 0 · affecting 0 |
| 05.project_exploited | no affecting advisory is on CISA's Known Exploited listexploited 0 |
Could not conclude, or did not apply — 31
Not a clean result. Each says why it could not answer here.
| Signal | Why |
|---|---|
| 04.dependency_sprawl | no recognised dependency manifest found |
| 04.schema_churn | no schema migrations to read |
| 04.compat_layers | a library, whose compatibility code is usually deliberate |
| 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 |
| 01.build_reproducibility | no product Dockerfile to read |
| 01.notebook_outputs | not a data or machine-learning repository |
| 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.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 |
| 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 302G-DQPE-CAX8 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.
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 — 7 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 | read repository metadata from the GitHub API | size mb: 244.2authenticated: False |
| 32.8s | cloned the repository to a temporary directory | depth: full |
| 70.9s | read the git history | commits: 12078tracked files: 305 |
| 233.4s | ran the deterministic checks | blame pass: Trueread working tree: False |
| 233.4s | recorded where this scan ran | attested: Falseenvironment: cloud-run |
| 352.4s | kept the facts, never the source, for re-reading under new checks | |
| 352.4s | deleting the working copy |
Total 352.4s ·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).