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koajs/koa
Free reading: not for reliance
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824c1cf · 1,311 commits · 111 files
Issued 2026-09-24

Nothing significant. Questions worth asking about Product & Engineering Maturity, Engineering Process & SDLC Maturity.

68 checks ran across 6 assessable dimensions. None found a significant problem; 3 raised something worth a question. 4 findings, each with evidence. One dimension cannot be assessed without an acquirer.

An earlier reading. This is the survey of 2026-09-24 by borehole 0.4.0, which is what its verification code attests to. A newer reading of the same commit exists: read the newest.
Published under today's rules. The verification code attests to this reading as it was stored. This page differs from it as follows.
  • Words about people are today's: bands rather than exact shares, dates or day counts, and what the history measured rather than why.
strong adequate significant findings not assessable from a repository
Provenance disclosure does not affect any rating
2% of the code standing today was written in AI-declared commits
2% of lines still in the tree 246 of 12,172 1% of lines ever added these differ when early hand-written code has since been replaced
5/1,147 commits declaring an agent
confidence: moderate
  • 5% 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 110 of 110 counted files
50,084 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 ↑

No finding. 9 checks ran and none fired; the rejection log below says why each did not.

Engineering Process & SDLC Maturity

02 · adequate · ratings ↑
02.6

Almost no process scaffolding exists in the repository

adequate

Of five ordinary markers — CI workflows, CODEOWNERS, a pull-request template, pre-commit hooks, contribution guidance — 1 is present: CI workflows. Branch protection itself is a GitHub setting rather than a file, so this is a reading of proxies and not of the rules themselves. What it does establish is that the process is not written down anywhere a new engineer would find it.

Evidence
process-scaffolding 1 of 5 markers present across 111 tracked files
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.

Organization & Key-Person Risk

03 · strong · ratings ↑

No finding. 9 checks ran and none fired; the rejection log below says why each did not.

Product & Engineering Maturity

04 · adequate · ratings ↑
04.1

Change keeps returning to the same few files

adequate

Five files out of 453 absorb 29% of all file-level change. Concentration like this is where debt is usually being serviced rather than repaid: the same code is reopened because it is load-bearing, fragile, or both. A repository cannot tell you which — that is a conversation with the team.

Evidence
touch-count package.json — 264 commits touched it
touch-count lib/application.js — 182 commits touched it
touch-count lib/response.js — 124 commits touched it
touch-count lib/context.js — 121 commits touched it
touch-count Readme.md — 114 commits touched it
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.

04.5

Effort is shifting from building to rewriting

adequate

Deleted lines per line added rose from 0.56 to 0.87 between the first and second halves of this history. Rework is normal and often healthy, but a rising ratio means an increasing share of the team's time is spent replacing code that already exists rather than building what does not. Whether that is deliberate repayment or churn is a question for the team.

Evidence
deletions-per-insertion first half 0.56, second half 0.87 (split 2020-03-03)
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 ↑
05.10

Licence text does not match a standard licence

adequate

LICENSE 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.

Evidence
LICENSE LICENSE: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.

Observability & Operations

06 · strong · ratings ↑

No finding. 8 checks ran and none fired; the rejection log below says why each did not.

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.

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. Is the architecture right for the next three years of the product? Answer lives in: Your architects, with the product roadmap01.39
  2. 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 268 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
  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
  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 JavaScript codebase. Does your engineering organisation already run JavaScript in production, or would this be the first? 07.1
  2. The bulk of this system sits in lib/, {test => __tests__}/, test-helpers/. 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.

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Rejection log — 64 signals that ran and did not fire

Appendix: rejection log — 64 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 — 40

SignalWhat it found
04.debt_markers debt markers are sparsemarkers 2 · per kloc 0.17 · lines read 11,625
04.dependency_sprawl direct dependency counts are unremarkable
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 105
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
03.contributor_concentration no single contributor dominates the last 24 monthsyears 13.1 · window last 24 months · authors 268
03.active_contributors more than one contributor active in the trailing yearall time 269 · active 12mo 19
03.knowledge_silos every substantial directory has been touched by more than one personauthors 269 · directories 5
03.drive_by_contributors an open contributor base, where one-commit contributors are normalauthors 269 · one off share 0.777
03.contributor_attrition no contributor dominates enough for their absence to matterauthors 269 · top share less than a quarter · top contributor last committed more than three years ago
03.critical_path_ownership more than one person changes the critical pathsauthors 28
02.merge_discipline a meaningful share of recent change carries evidence of reviewmerges 0 · window last 24 months · with tracked 3
02.ci_presence CI configuration is present in the working treecount 2
02.test_presence tests are present in a normal proportion to sourcetests 73 · source 82 · test ratio 0.89
02.release_cadence tags are presenttags 125
02.conventional_commits commit subjects generally carry contentsampled 1,147 · low content share 0.106
02.ci_runs_tests CI invokes a test runnerconfigs 2 · with tests 1
02.skipped_tests few tests are switched offfocused 0 · skipped 0 · test files 74
02.ci_test_gating no test run in CI is written so that it cannot failconfigs 2
02.dependency_update_cadence dependencies move with the codelockfiles 1 · commits since 4 · days since lockfile changed 26
02.flaky_test_markers tests are not retried until they passtest retries 0 · suite retries 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 3,012 · share of insertions 0.0376
01.message_uniformity commit subjects vary in wording and lengthlength stdev 19.59 · repeat share 0.067
01.revision_depth most files were revisited after they were first writtenfiles seen 456 · write once share 0.458
01.oversized_modules no module is an outlier against this codebase's own normlargest 1,173 · threshold 1,000 · median lines 44
01.swallowed_errors errors are rarely thrown awayloc 11,729 · files 0 · per kloc 0.0
01.unfinished_migration no language migration is stalled halfway
05.committed_secrets no credential-shaped strings outside test and fixture pathsnote the working tree only; the history is 05.5 · patterns 7 · files read 105
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 7 · truncated False · added lines 76,217
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 5 · 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.known_vulnerabilities no locked dependency has a published advisoryadvisories 0 · dependencies 35 · high or critical 0
05.license_vendored_unlicensed no vendored third-party code is committedcomponents 0

Could not conclude, or did not apply — 24

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

SignalWhy
04.test_growthnot enough code written in either half to compare
04.eol_runtimeno pinned runtime version to check
04.fixes_with_teststoo few fixes in 24 months to judge
04.fix_share_trendfewer than six busy quarters to compare
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
03.second_contributor_attritiontoo little recent history
03.bus_factor_trendfewer than three active years to compare
03.joiners_and_leaverstoo few regular contributors to see a trend
02.revert_sharetoo few recent commits to judge how often change is undone
02.lint_in_buildtoo small, or no CI to wire a linter into (02.2)
02.long_lived_branchestoo few merges to judge (squash and rebase leave none)
01.duplicated_blockstoo few source files to look for duplication across them
01.build_reproducibilityno product Dockerfile to read
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.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
05.license_manifest_conflictno licence file could be identified to compare the manifest against
BOREHOLE READING NOT A CERTIFICATION BT1V-37MJ-AR94 2026-09-24 · 824C1CF BOREHOLE.DEV/VERIFY

Anyone can check this report against the authoritative record — click the stamp, or enter BT1V-37MJ-AR94 at borehole.dev/verify.

The code commits to the 68 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://staging.borehole.dev/badge/koajs/koa/824c1cf.svg "Borehole free reading: not for reliance. See the full report.")](https://staging.borehole.dev/verify/BT1V37MJAR94?via=badge)

Borehole reading BT1V-37MJ-AR94, not a certification

This commit has been surveyed 3 times

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.

ReadAssessorFindingsBand
2026-09-24 · shown borehole 0.4.0 4 adequate
2 other readings (show)
2026-09-26 borehole 0.7.0 2 strong
2026-09-25 borehole 0.6.1 2 strong

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 — 6 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
0.4s read repository metadata from the GitHub API size mb: 3.9authenticated: False
1.7s cloned the repository to a temporary directory depth: full
2.3s read the git history commits: 1311tracked files: 111
5.6s ran the deterministic checks blame pass: Trueread working tree: False
5.6s recorded where this scan ran attested: Falseenvironment: cloud-run
5.6s deleting the working copy

Total 5.6s ·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 0.4.0 DETERMINISTIC LAYER · NO MODEL CALLSREAD ON BOREHOLE'S SERVER · CLONE DELETED TAKEDOWNCONTRIBUTED TO THIS REPOSITORY? YOUR RIGHTS