Borehole · Risk register · free tier
browser-use/browser-harness
Free reading: not for reliance
Borehole badge for browser-use/browser-harness
ea0d03e · 768 commits · 244 files
Issued 2026-10-23

Reads strong: 3 of 4 rated dimensions are strong, 1 is adequate and none is significant.

104 checks ran across 6 assessable dimensions. Security & Reliability Posture is adequate. 3 findings, each with evidence. One dimension cannot be assessed without an acquirer.

This repository reads strong. Show it in your README: the badge links to a page where anyone can check the reading. 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.

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Published under today's rules. The verification code attests to this reading as it was stored. This page differs from it as follows.
  • 2 findings from checks Borehole's calibration found wrong more often than right are no longer published.
strong adequate significant findings not assessable from a repository
Provenance disclosure does not affect any rating
21% of the code standing today was written in AI-declared commits
21% of lines still in the tree 12,852 of 60,251 27% of lines ever added these differ when early hand-written code has since been replaced
104/527 commits declaring an agent · Claude, Claude Fable 5, Claude Fable 5.1 and 14 more
confidence: low
  • 21% 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 244 of 244 counted files
183 lines excluded as lockfiles, vendored or generated.
This is a lower bound. It counts what the repository declares. Undeclared AI authorship is invisible here, and a single rebase removes the trailers this rests on. Absence of a declaration is absence of disclosure, not absence of AI authorship.

Architecture & Codebase — including AI provenance

01 · strong · ratings ↑
Notes that do not affect this rating
01.6

src/browser_harness/admin.py is 1,589 lines, 12× this codebase's median file

adequate

The median source file here is 129 lines. 1 file exceed 1,290 lines, the largest being 1,589. 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.

Evidence
line-count src/browser_harness/admin.py:1 — 1,589 lines (12× 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.

01.15

35 errors caught and discarded in product code

adequate

35 places catch an error and do nothing with it, across 8 files (0.7 per thousand lines). Each is a failure the system will not report. They surface later as problems nobody can explain, and they are cheap to fix now.

A note that does not affect this rating: in Borehole's calibration, this check's notes were usually true but overstated.

Evidence
src/browser_harness/admin.py src/browser_harness/admin.py:310 — error caught and discarded
src/browser_harness/admin.py src/browser_harness/admin.py:314 — error caught and discarded
src/browser_harness/admin.py src/browser_harness/admin.py:538 — error caught and discarded
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 · strong · ratings ↑

No finding. 10 checks ran and none fired; the rejection log below says why each did not.

Product & Engineering Maturity

04 · not assessable · ratings ↑

Not rated: only 9 of 19 checks could reach a conclusion here; the rest do not apply to this repository or could not read it. What a person adds here.

Security & Reliability Posture

05 · adequate · ratings ↑
05.2

None of the standard security guard rails are configured

adequate

There is no disclosure policy, no automated dependency updates, no named code owners and no pre-commit configuration. None of these is load-bearing on its own. Their collective absence says that security posture here is whatever the current team happens to remember to do, which is not a posture that survives the team changing.

Evidence
guardrail-scan checked 5 kinds of guard rail across 244 tracked files; 0 present
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 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.

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. See the tiers.

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
  1. measured No architecture or design document is in the tree, across 215 product files. Where does the design live, and who holds it? Answer lives in: The team01.38
  2. Is the architecture right for the next three years of the product? Answer lives in: Your architects, with the product roadmap01.39
  3. Were the home-grown components reasonable choices when they were made, and are they now? Answer lives in: The team's reasoning at the time01.40

Engineering Process & SDLC Maturity

02 · high coverage
  1. Is review real or a rubber stamp? Comment depth and time to approve need the pull request history. Answer lives in: The code host's pull request data02.32
  2. Is delivery planned and measured, or heroic? Answer lives in: The issue tracker: backlog, sprint history, estimate accuracy02.38
  3. How are incidents run, reviewed and learned from? Answer lives in: Tickets, chat and postmortems02.37

Organization & Key-Person Risk

03 · partial coverage
  1. measured 106 people have committed here. Which of them are you acquiring, and which are you replacing? Answer lives in: The deal terms03.29
  2. Who mentors whom, and would that survive a departure? Answer lives in: The team; review history only suggests candidates03.28
  3. Can the team grow, and who stands behind the top three contributors? Answer lives in: Recruiting data and the org chart03.30
  4. Is the seniority mix sound, and will pay survive your salary bands? Answer lives in: HR data03.31
  5. Is the pace sustainable? Commit times cannot say: git keeps no reliable local time. Answer lives in: Interviews and on-call history03.14
  6. Does the team want to stay after close? Answer lives in: Interviews03.32
  7. How are decisions made and disagreements resolved? Answer lives in: Time with the team03.33

Product & Engineering Maturity

04 · minimal coverage

Not rated: only 9 of 19 checks could reach a conclusion here; the rest do not apply to this repository or could not read it.

  1. Can this team deliver the stated roadmap on the stated timeline? Answer lives in: The data room and the team's record of estimates04.32
  2. Does leadership know about the debt, and is time budgeted to repay it? Answer lives in: Budget and roadmap decisions04.31
  3. Is the engineering shape consistent with the commercial story? Answer lives in: Revenue, customer and churn data04.33

Security & Reliability Posture

05 · partial coverage
  1. What has actually broken, how often, and how badly? Answer lives in: Ticketing and chat05.41
  2. What did external testing find, and was it fixed? Answer lives in: Reports in the data room05.42
  3. What is the SOC 2, ISO 27001 or GDPR status, and where is the evidence? Answer lives in: Audit reports; policy files in the tree are not evidence05.44

Observability & Operations

06 · partial coverage

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.

  1. Are the dashboards opened, the alerts acknowledged and the pages answered? Answer lives in: Pager history and dashboard logs06.29
  2. Are the service-level objectives actually met? Answer lives in: Production metrics06.30
  3. Who carries the pager, and how often does it go off? Answer lives in: Pager exports and interviews06.31
  4. What does it cost to run, and how much headroom is there? Answer lives in: Cloud billing and capacity plans06.32

Fit with the Acquirer

07 · none coverage

Not rated: structurally not assessable from a repository.

  1. This is primarily a Python codebase. Does your engineering organisation already run Python in production, or would this be the first? 07.1
  2. The bulk of this system sits in agent-workspace/, src/, skills/. Which of your existing systems would each of those have to absorb or replace? 07.10
  3. 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? 07.2
  4. 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?
  5. Which of these systems duplicate yours, and which get retired? Answer lives in: Your architecture07.11
  6. What will integration cost, and in what order? Answer lives in: The engagement07.12
  7. Where does the team land in your organisation, and who reports to whom? Answer lives in: Your org design07.13
  8. Are there earn-outs, retention packages or contractor IP to assign? Answer lives in: Deal terms07.14
  9. Do customer contracts limit hosting, regions or vendors? Answer lives in: Customer contracts07.15

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

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Rejection log — 101 signals that ran and did not fire

Appendix: rejection log — 101 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 — 55

SignalWhat it found
04.hotspot_concentration change is spread across the codebase rather than pooling in a few filesfiles 425 · top5 share 0.23
04.debt_markers debt markers are sparsemarkers 1 · per kloc 0.02 · lines read 53,296
04.dependency_sprawl direct dependency counts are unremarkable
04.fixes_with_tests fixes usually come with a testfixes 101 · share 0.485 · with tests 49
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 235
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.contributor_concentration no single contributor dominates the last 24 monthsyears 0.5 · window last 24 months · authors 106
03.drive_by_contributors an open contributor base, where one-commit contributors are normalauthors 106 · one off share 0.67
03.contributor_attrition the dominant contributor is still activeauthors 106 · top share a quarter or more · top contributor last committed within the last three months
03.critical_path_ownership more than one person changes the critical pathsauthors 106
02.merge_discipline a meaningful share of recent change carries evidence of reviewmerges 241 · window last 24 months · with tracked 5
02.ci_presence CI configuration is present in the working treecount 1
02.test_presence tests are present in a normal proportion to sourcetests 18 · source 36 · test ratio 0.5
02.release_cadence tags are presenttags 14
02.conventional_commits commit subjects generally carry contentsampled 527 · low content share 0.004
02.branch_protection_hints process scaffolding is present in the repository
02.skipped_tests few tests are switched offfocused 0 · skipped 0 · test files 18
02.ci_test_gating no test run in CI is written so that it cannot failconfigs 1
02.revert_share change is rarely undoneshare 0.008 · reverts 4 · recent commits 527
02.flaky_test_markers tests are not retried until they passtest retries 0 · suite retries 0
02.long_lived_branches the typical branch reaches the trunk quicklyshare 0.105 · merges 229 · long lived 24
02.commit_size changes arrive in reviewable sizesshare 0.025 · commits 476 · over 2000 lines 12
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 697 · share of insertions 0.0105
01.message_uniformity commit subjects vary in wording and lengthlength stdev 34.54 · repeat share 0.042
01.revision_depth most files were revisited after they were first writtenfiles seen 119 · write once share 0.403
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 235
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 54,313
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 3 · pipe to shell 0 · unpinned third party 1
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 MITlicense MIT
05.license_vendored_unlicensed no vendored third-party code is committedcomponents 0
05.license_grant_unclear the licence is recognisable as MITclass permissive · license MIT
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 16 · added in two years 16 · removed within 60 days 2
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 1 · 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 5.0 · days since last tag 49 · commits last 90 days 284
04.release_branch the newest release was cut from the branch surveyedelsewhere 0 · on branch 14 · tags in window 14
03.single_maintainer no file says one person maintains itstatements 0

Could not conclude, or did not apply — 46

Not a clean result. Each says why it could not answer here.

SignalWhy
04.test_growthhistory too short to compare code and test growth
04.churn_trendhistory too short to read a churn trend
04.eol_runtimeno pinned runtime version to check
04.fix_share_trendfewer than six busy quarters to compare
04.schema_churnno schema migrations to read
04.compat_layersa library, whose compatibility code is usually deliberate
04.dependency_redundancyno JavaScript manifest to read
06.telemetry_depthnot expected of it: nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere
06.print_loggingnot expected of it: nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere
06.correlation_idsnot expected of it: nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere
06.error_reportingnot expected of it: nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere
06.alert_rulesnot expected of it: nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere
06.deployed_image_floatsnot expected of it: nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere
06.probes_identicalno Kubernetes probes
06.single_replicano Kubernetes deployments
06.environment_branchingnot expected of it: nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere
06.release_markersnot expected of it: nothing in this repository deploys a long-running server; if it runs as one, its deployment lives elsewhere
06.feature_flagsno feature-flag service; flags may live elsewhere
03.active_contributorshistory too short to distinguish active from historical contributors
03.second_contributor_attritiontoo little history
03.bus_factor_trendfewer than three active years to compare
03.joiners_and_leaverstoo few regular contributors to see a trend
02.dependency_update_cadenceno lockfile to date
02.lint_in_buildtoo small, or no CI to wire a linter into (02.2)
01.duplicated_blockstoo few source files to look for duplication across them
01.build_reproducibilityno product Dockerfile to read
01.notebook_outputsnot a data or machine-learning repository
05.dependency_pinningno manifest whose pinning can be read without a lockfile
05.container_runs_as_rootno Dockerfile to read
05.outbound_timeoutsnot a running service
05.migration_reversibilitytoo few migrations to judge
05.sql_from_stringsnot a running service; a library that builds SQL is doing its job
05.resource_limitsno Kubernetes workload manifests
05.known_vulnerabilitiesno lockfile this survey can read, or a collector older than 0.4.0
05.public_env_secretnot a frontend
05.unsafe_htmlnot a frontend
05.source_maps_shippednot a frontend
05.cleartext_trafficnot a mobile app
05.dataset_provenancenot a data or machine-learning repository
05.license_copyleft_inheritedno 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_accumulatingfew or no feature flags in the history
04.api_versions_coexistingnot a running service
04.deprecations_lingeringa library, which keeps deprecated interfaces for its users
05.project_advisoriesrecord incomplete: no advisory found in the sources that answered; OSV PyPI browser-harness (an empty record for a package published here) did not
05.advisory_recordrecord incomplete: no advisory against the project in the last 24 months; OSV PyPI browser-harness (an empty record for a package published here) did not answer
05.project_exploitedno affecting advisory is on CISA's Known Exploited list
BOREHOLE READING NOT A CERTIFICATION 8T92-27X3-0Q39 2026-10-23 · EA0D03E BOREHOLE.DEV/VERIFY

Anyone can check this report against the authoritative record — click the stamp, or enter 8T92-27X3-0Q39 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.

Put the mark in your README

The image is wrapped in a link to the verification page, so a reader can check it rather than take it on trust. 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.

[![Borehole reading, not a certification](https://borehole.dev/badge/browser-use/browser-harness/ea0d03e.svg "Borehole free reading: not for reliance. See the full report.")](https://borehole.dev/verify/8T9227X30Q39?via=badge)

Borehole reading 8T92-27X3-0Q39, not a certification

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.

AtStepDetail
0.0s read repository metadata from the GitHub API size mb: 4.7authenticated: False
1.2s cloned the repository to a temporary directory depth: full
1.6s read the git history commits: 768tracked files: 244
9.4s ran the deterministic checks blame pass: Trueread working tree: False
9.4s recorded where this scan ran attested: Falseenvironment: cloud-run
13.9s kept the facts, never the source, for re-reading under new checks
13.9s deleting the working copy

Total 13.9s ·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).

BOREHOLE 0.7.15 DETERMINISTIC LAYER · NO MODEL CALLSREAD ON BOREHOLE'S SERVER · CLONE DELETED TAKEDOWNCONTRIBUTED TO THIS REPOSITORY? YOUR RIGHTS