AGPL-3.0 since 2026-02-13: open source; offering it over a network counts as distributing it, so a hosted product's changes must be published.
106 checks ran across 6 assessable dimensions. 2 findings are worth checking first. 9 findings, each with evidence. One dimension cannot be assessed without an acquirer.
- 05.60 AGPL-3.0 since 2026-02-13: open source; offering it over a network counts as distributing it, so a hosted product's changes must be published
- 05.60 Relicensed: MIT → AGPL-3.0 (2026-02-13) LICENSE
- names OpenSSF README.md:4
Borehole's proprietary scoring is calibrated across hundreds of repositories. Each finding here reads significant, but its check has not yet held up often enough in that calibration to rate significant on its own. If one holds when someone checks it, it is significant.
| 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 | adequate | |
| 07 | Fit with the Acquirer | not assessable |
- 24% 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 876 of 876 counted files
Architecture & Codebase — including AI provenance
01 · strong · ratings ↑elixir/lib/teslamate/vehicles/vehicle.ex is 2,251 lines, 50× this codebase's median file
adequateThe median source file here is 45 lines. 2 files exceed 1,000 lines, the largest being 2,251. 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 | elixir/lib/teslamate/vehicles/vehicle.ex:1 — 2,251 lines (50× median) |
| line-count | elixir/lib/teslamate/mqtt/pubsub/home_assistant.ex:1 — 1,111 lines (24× 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 749 non-merge commits among 71 authors; across all history, a quarter or more of 2,743. In a project with 71 recent contributors and 8 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 749 commits; bus factor 1; 71 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 six months
adequate worth checking firstOne person authored a quarter or more of 2,743 commits and has not committed here for more than six months, 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.
The check that found this reads significant, but it has not yet held up often enough in Borehole's calibration to rate a finding significant on its own. If it holds when someone checks it, this finding is significant.
| last-commit-by-top-author | last commit more than six months ago, measured to the survey |
| git shortlog -sn | top author a quarter or more of 2,743 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 ↑Node.js 20 is past end of life
adequateThe code is pinned to Node.js 20 (end of life 2026-04-30). None of these receives security fixes any more; the first stopped on 2026-04-30. 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.
A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated.
| .node-version | .node-version — Node.js 20, end of life 2026-04-30 |
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.
Security & Reliability Posture
05 · adequate · ratings ↑9 locked dependencies have published vulnerabilities, 1 high or critical in what ships
adequate worth checking first9 of 1,345 locked dependencies match 15 published advisories in OSV, 5 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. This lockfile pins development tools alongside what ships and does not say which is which, so some of these may never reach a user.
The check that found this reads significant, but it has not yet held up often enough in Borehole's calibration to rate a finding significant on its own. Opening website/package-lock.json settles it. If it holds when someone checks it, this finding is significant.
| website/package-lock.json | website/package-lock.json — braces 3.0.3: GHSA-vfj7-8cjw-p6xm (high) |
| website/package-lock.json | website/package-lock.json — brace-expansion 1.1.18: GHSA-6j4f-fj2g-mc7p (high), fixed in 1.1.19; reached only by the build |
| website/package-lock.json | website/package-lock.json — http-cache-semantics 4.2.0: GHSA-ch52-4w7c-c8xp (high); reached only by the build |
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.
Relicensed: MIT → AGPL-3.0 (2026-02-13)
adequateThe root licence changed 1 time(s). The latest terms restrict what users, hosts or a buyer may do in ways the earlier ones did not. Code taken under the old terms stays under them, so both matter in diligence.
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 · adequate · ratings ↑No telemetry or error reporting is wired in anywhere
adequateNone of 787 readable files references an instrumentation, metrics or error-reporting library. If this system is in production, nobody learns that it broke from the system itself — they learn it from a customer. That is a reliability finding before it is an observability one.
| telemetry-scan | searched 787 tracked text files for 16 known instrumentation libraries; manifests for metrics, tracing and error-reporting families; locked dependencies for the packages that emit; 0 matched |
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.
One request cannot be followed through the logs
adequateNothing in the service carries a request or correlation id, and there is no tracing. When a customer reports a failure, the log lines that belong to their request cannot be picked out from everyone else's.
| request ids | no request id, correlation id or tracing found |
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.
No error reporter is wired in
adequateNothing 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.
A note that does not affect this rating: notes like it are common in well-run projects.
| error reporting | no error reporter initialised |
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.
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
6 checks 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- measured No architecture or design document is in the tree, across 390 product files. Where does the design live, and who holds it?
- 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 One contributor authored a quarter or more of the commits in this history. Is that person part of the transaction, and for how long after it?
- 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- measured No threat model is in the tree of what looks like a running service. Does one exist elsewhere, and who owns it?
- 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 coverage- measured Nothing in the tree backs up or restores data. How is data backed up, and has a restore ever been rehearsed?
- measured No alert rule is defined in the repository. Where are alerts defined, who receives them, and when did one last fire?
- 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 Elixir codebase. Does your engineering organisation already run Elixir in production, or would this be the first?
- The bulk of this system sits in elixir/, website/, grafana/. Which of your existing systems would each of those have to absorb or replace?
- 39% 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?
- The repository carries deployment configuration (Dockerfile and 2 more). Does that match your deployment and on-call model, or does it need rehosting first?
- 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/teslamate-org/teslamate/1ddb3e4)
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 — 97 signals that ran and did not fire
Appendix: rejection log — 97 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 — 63
| Signal | What it found |
|---|---|
| 04.hotspot_concentration | change is spread across the codebase rather than pooling in a few filesfiles 2,369 · top5 share 0.072 |
| 04.debt_markers | debt markers are sparsemarkers 1 · per kloc 0.01 · lines read 179,052 |
| 04.dependency_sprawl | direct dependency counts are unremarkable |
| 04.churn_trend | rework is not rising against new worklate delete per insert 0.38 · early delete per insert 0.477 |
| 04.fixes_with_tests | fixes usually come with a testfixes 158 · share 0.209 · with tests 33 |
| 04.fix_share_trend | fixing is not crowding out building |
| 04.compat_layers | little code is kept for the old wayshare 0.0 · code files 229 · compat files 0 |
| 06.healthcheck_presence | a health or readiness check is defined |
| 06.usage_reporting_default | the product's code names no reporting hostsettings on 0 · settings off 0 |
| 06.release_markers | releases are markedtags last year 9 · release commits 0 · changelog commits 298 |
| 06.migrate_on_start | migrations do not run at container start |
| 03.active_contributors | more than one contributor active in the trailing yearall time 239 · active 12mo 46 |
| 03.knowledge_silos | every substantial directory has been touched by more than one personauthors 239 · directories 3 |
| 03.drive_by_contributors | an open contributor base, where one-commit contributors are normalauthors 239 · one off share 0.682 |
| 03.critical_path_ownership | more than one person changes the critical pathsauthors 71 |
| 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 2 · joined 5 · regular last year 8 |
| 02.merge_discipline | a meaningful share of recent change carries evidence of reviewmerges 0 · window last 24 months · with tracked 15 |
| 02.ci_presence | CI configuration is present in the working treecount 19 |
| 02.test_presence | tests are present in a normal proportion to sourcetests 90 · source 315 · test ratio 0.286 |
| 02.release_cadence | tags are presenttags 106 |
| 02.conventional_commits | commit subjects generally carry contentsampled 3,271 · low content share 0.021 |
| 02.branch_protection_hints | process scaffolding is present in the repository |
| 02.ci_runs_tests | CI invokes a test runnerconfigs 19 · with tests 2 |
| 02.skipped_tests | few tests are switched offfocused 0 · skipped 0 · test files 471 |
| 02.ci_test_gating | no test run in CI is written so that it cannot failconfigs 19 |
| 02.revert_share | change is rarely undoneshare 0.013 · reverts 10 · recent commits 749 |
| 02.dependency_update_cadence | dependencies move with the codelockfiles 3 · commits since 10 · days since lockfile changed 3 |
| 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 3 · ci configs 19 · product files 229 |
| 02.commit_size | changes arrive in reviewable sizesshare 0.029 · commits 682 · over 2000 lines 20 |
| 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 6,117 · share of insertions 0.0114 |
| 01.message_uniformity | commit subjects vary in wording and lengthlength stdev 23.76 · repeat share 0.184 |
| 01.revision_depth | most files were revisited after they were first writtenfiles seen 139 · write once share 0.403 |
| 01.duplicated_blocks | little shipping code is repeated verbatim across filesshare 0.0002 · product files 229 · distinct blocks 11,710 |
| 01.build_reproducibility | every base image names a versionfloating 0 · from lines 4 |
| 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 787 |
| 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 518,267 |
| 05.container_runs_as_root | every shipped Dockerfile drops to a non-root user or builds on a non-root base imagedockerfiles 2 |
| 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 38 · pipe to shell 0 · unpinned third party 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.source_maps_shipped | production builds do not publish source mapssites 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.license_grant_unclear | the licence is recognisable as AGPL-3.0class network-copyleft · license AGPL-3.0 |
| 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 50 · added in two years 18 · removed within 60 days 1 |
| 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.paid_edition | no directory carries a separate paid-edition licencedirectories 0 |
| 04.releases_stopped | releases keep pace with developmentmedian gap days 32.5 · days since last tag 0 · commits last 90 days 270 |
| 04.release_branch | the newest release was cut from the branch surveyedelsewhere 24 · on branch 82 · tags in window 106 |
| 03.single_maintainer | no file says one person maintains itstatements 0 |
Could not conclude, or did not apply — 34
Not a clean result. Each says why it could not answer here.
| Signal | Why |
|---|---|
| 04.test_growth | tests are kept inside the files they test, which a count by file name cannot see |
| 04.schema_churn | no schema migrations to read |
| 04.dependency_redundancy | no JavaScript manifest to read |
| 06.structured_logging | not assessed for Elixir: its logging setup is not read |
| 06.telemetry_depth | none at all is 06.1 |
| 06.print_logging | a frontend: console output is the browser's, not the server's |
| 06.alert_rules | no alert rules in the repository; they may live in a console |
| 06.deployed_image_floats | no deployment descriptor names an image |
| 06.probes_identical | no Kubernetes probes |
| 06.single_replica | no Kubernetes deployments |
| 06.environment_branching | not assessed for Elixir, the language the product is written in: this check's patterns read other languages only |
| 06.feature_flags | no feature-flag service; flags may live elsewhere |
| 02.long_lived_branches | too few merges to judge (squash and rebase leave none) |
| 01.swallowed_errors | not assessed for Elixir, the language the product is written in: this check's patterns read other languages only |
| 01.notebook_outputs | not a data or machine-learning repository |
| 05.outbound_timeouts | not assessed for Elixir, the language the product is written in: this check's patterns read other languages only |
| 05.migration_reversibility | too few migrations to judge |
| 05.sql_from_strings | not assessed for Elixir, the language the product is written in: this check's patterns read other languages only |
| 05.shell_from_strings | not assessed for Elixir, the language the product is written in: this check's patterns read other languages only |
| 05.unsafe_deserialization | not assessed for Elixir, the language the product is written in: this check's patterns read other languages only |
| 05.tls_verification_off | not assessed for Elixir, the language the product is written in: this check's patterns read other languages only |
| 05.resource_limits | no Kubernetes workload manifests |
| 05.public_env_secret | not assessed for Elixir, the language the product is written in: this check's patterns read other languages only |
| 05.unsafe_html | not assessed for Elixir, the language the product is written in: this check's patterns read other languages only |
| 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 | one API version is served, or none |
| 04.deprecations_lingering | few deprecations have outlived two years |
| 05.project_advisories | record incomplete: no advisory found in the sources that answered; NVD: 3 records name teslamate with nothing tying them to this repository (CVE-2022-23126, CVE-2023-29857, CVE-2023-31634) |
| 05.advisory_record | record incomplete: no advisory against the project in the last 24 months; NVD: 3 records name teslamate with nothing tying them to this repository (CVE-2022-23126, CVE-2023-29857, CVE-2023-31634) |
| 05.project_exploited | no affecting advisory is on CISA's Known Exploited list |
Anyone can check this report against the authoritative record — click the stamp, or enter KV1S-0J41-17NJ 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 | 9 | adequate |
4 earlier (show)
| 2026-10-03 | borehole 0.7.12 | 9 | adequate |
| 2026-10-03 | borehole 0.7.11 | 9 | adequate |
| 2026-10-02 | borehole 0.7.10 | 9 | adequate |
| 2026-10-01 | borehole 0.7.9 | 9 | 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 |
| 6.9s | ran the deterministic checks | blame pass: Trueread working tree: False |
| 6.9s | recorded where this scan ran | attested: Falseenvironment: cloud-run |
Total 6.9s ·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).