Borehole · Risk register · free tier
lichess-org/lila
Free reading: not for reliance
Borehole badge for lichess-org/lila
7e4c1e1 · 50,000 commits · 15,996 files
Issued 2026-09-29

Nothing significant. Questions worth asking about Security & Reliability Posture, Engineering Process & SDLC Maturity.

104 checks ran across 6 assessable dimensions. None found a significant problem; 6 raised something worth a question. 12 findings, each with evidence. One dimension cannot be assessed without an acquirer.

What the repository says about itself
Degraded run. History truncated at 50,000 commits, the most a hosted survey reads. Signals needing the full history are reported as inconclusive rather than clean.
An earlier reading. This is the survey of 2026-09-29 by borehole 0.7.6, 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.
  • 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
0% of lines added in the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026) arrived in commits declaring an AI agent as co-author
The surviving-lines measurement was not run on this repository.
Measured over the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026) only. Older history was not read.
63/40,362 commits declaring an agent · Claude Fable 5.1, Claude Opus 4.6, Claude Opus 4.6 (1M context) and 8 more
confidence: moderate
  • 1% 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
190,282 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 · adequate · ratings ↑
01.6

ui/@types/lichess/i18n.d.ts is 6,420 lines, 94× this codebase's median file

adequate

The median source file here is 68 lines. 8 files exceed 1,000 lines, the largest being 6,420. 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.

Evidence
line-count ui/@types/lichess/i18n.d.ts:1 — 6,420 lines (94× median)
line-count modules/coreI18n/src/main/key.scala:1 — 3,271 lines (48× median)
line-count modules/gathering/src/main/Quote.scala:1 — 1,661 lines (24× median)
line-count ui/dgt/src/play.ts:1 — 1,245 lines (18× median)
line-count ui/analyse/src/ctrl.ts:1 — 1,111 lines (16× 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 · adequate · ratings ↑
02.3

Tests cover a thin slice of the codebase

adequate

116 test files against 2,499 source files (4.6%). This does not measure whether the tests are good, only whether enough of them exist for the codebase to be changed safely by someone who did not write it — which is exactly the situation after an acquisition.

Evidence
test-file-ratio 116 test files / 2,499 source 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.

02.16

Tests are retried until they pass

adequate

The suite is configured to retry failing tests (playwright.config.ts). A retry turns a flaky test green without saying why it failed, so a green build means the tests passed eventually. Ask how many retries a typical run needs, and which tests need them.

Evidence
playwright.config.ts playwright.config.ts:7 — test retry
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 · adequate · ratings ↑
03.1

Bus factor 1: recent work is concentrated in one contributor

adequate

In the last 24 months, one contributor authored more than half of 12,732 non-merge commits among 182 authors; across all 40,212 commits read, more than half of 40,212. In a project with 182 recent contributors and at least 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.

Evidence
git shortlog -sn last 24 months: top author more than half of 12,732 commits; bus factor 1; 182 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.

03.8

One person alone changes billing

adequate

In the last 24 months, of 182 contributors, a single person made every change to: billing (11 commits). These are the parts where a mistake is expensive and where knowledge is hardest to rebuild. Ask who else could change them safely tomorrow.

Evidence
git log -- <area> sole author over 24 months: billing (11 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 · adequate · ratings ↑
04.19

5% of bug fixes add or change a test

adequate

Of 1622 fixes in the last 24 months, 76 touched a test. A fix without the test that would have caught the bug can quietly come back, and the suite never learns from what went wrong.

Evidence
fix commits touching tests 76 of 1622
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.

04.61

No release for 54 months while development continues

adequate

The last tag, pre-paypal-checkout, was cut 1640 days before the survey; the typical gap between releases was 0 days, and 3040 commits landed in the last 90 days. Users run the last release, not this code.

Evidence
47ec030f8 last tag pre-paypal-checkout
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 ↑
05.26

4 locked dependencies have published vulnerabilities, 3 high or critical

adequate

4 of 390 locked dependencies match 21 published advisories in OSV, 3 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.

Evidence
pnpm-lock.yaml pnpm-lock.yaml — js-yaml 4.2.0: GHSA-2883-xcg3-v3hh (high), fixed in 4.3.2
pnpm-lock.yaml pnpm-lock.yaml — dompurify 2.5.9: GHSA-39q2-94rc-95cp (moderate), fixed in 3.4.0
pnpm-lock.yaml pnpm-lock.yaml — uuid 11.1.0: GHSA-w5hq-g745-h8pq (moderate), fixed in 11.1.1
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.

05.9

4 vendored components with no licence

adequate

Third-party code is committed into this repository without any statement of the terms it arrived under. Unknown terms are harder to deal with than inconvenient ones: an awkward licence can be complied with, an absent one cannot. Each of these needs its origin established before the code changes hands.

Evidence
public/javascripts/vendor/cash.min.js public/javascripts/vendor/cash.min.js — 1 tracked files, no licence file
public/vendor/ChessPursuit public/vendor/ChessPursuit — 2 tracked files, no licence file
ui/lib/css/vendor/_flatpickr.scss ui/lib/css/vendor/_flatpickr.scss — 1 tracked files, no licence file
ui/lib/css/vendor/_multiple-select.scss ui/lib/css/vendor/_multiple-select.scss — 1 tracked files, no licence file
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.

05.65

15 advisories against this project in the last 24 months, 9 high or critical

adequate

The newest was published on 2026-09-08. A project that publishes advisories is telling its users about its fixes, and the count and pace say how much security work it carries. Whether 15 of them are fixed in the code you ship could not be told from this history. Answer lives in: the release you run, set against each fixed version.

Evidence
GHSA-x958-pp85-74wf 2026-09-08: GHSA-x958-pp85-74wf (high), fixed in 05c4e27e3e863700781f925ba1dd58a4f171696f: Account takeover: POST /login can sign magic link tokens for any account whose name starts with yours
GHSA-5m3p-75ww-px48 2026-09-08: GHSA-5m3p-75ww-px48 (high), fixed in e774f0a3f06f9e00f4ad3d36986fc9dd2b3c3282: Board-play OAuth token grants account-session access
GHSA-634p-pgjm-jr9x 2026-09-06: GHSA-634p-pgjm-jr9x (low): Empty-scope OAuth tokens expose private user data
GHSA-3q97-v964-h747 2026-09-06: GHSA-3q97-v964-h747 (moderate): Unused sender email can take over pending registrations
GHSA-622v-64xr-xvm9 2026-09-06: GHSA-622v-64xr-xvm9 (moderate): Forged signup cookie allows takeover of pending registrations
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 ↑
06.9

No error reporter is wired in

adequate

Nothing 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.

Evidence
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.

06.17

The code branches on the environment's name at 26 places

adequate

26 places outside configuration test whether they are running in production or staging. Staging then does not exercise production's code, and each deploy is the first run of those branches. Differences belong in configuration the code reads, not in the code.

Evidence
app/UiEnv.scala app/UiEnv.scala:54 — branch on the environment name
app/UiEnv.scala app/UiEnv.scala:54 — branch on the environment name
app/controllers/Main.scala app/controllers/Main.scala:65 — branch on the environment name
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

4 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. 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 15,848 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 One contributor authored more than half of the commits in this history. Is that person part of the transaction, and for how long after it? 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. measured No threat model is in the tree of what looks like a running service. Does one exist elsewhere, and who owns it? Answer lives in: The security owner05.43
  2. What has actually broken, how often, and how badly? Answer lives in: Ticketing and chat05.41
  3. What did external testing find, and was it fixed? Answer lives in: Reports in the data room05.42
  4. 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. measured Nothing in the tree backs up or restores data. How is data backed up, and has a restore ever been rehearsed? Answer lives in: The operations team06.19
  2. measured No alert rule is defined in the repository. Where are alerts defined, who receives them, and when did one last fire? Answer lives in: The alerting tool and the on-call rota06.10
  3. Are the dashboards opened, the alerts acknowledged and the pages answered? Answer lives in: Pager history and dashboard logs06.29
  4. Are the service-level objectives actually met? Answer lives in: Production metrics06.30
  5. Who carries the pager, and how often does it go off? Answer lives in: Pager exports and interviews06.31
  6. 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 Scala codebase, with TypeScript alongside (30% of source files). Does your engineering organisation already run Scala in production, or would this be the first? 07.1
  2. The bulk of this system sits in ui/, modules/, translation/. 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 — 92 signals that ran and did not fire

Appendix: rejection log — 92 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 — 60

SignalWhat it found
04.hotspot_concentration change is spread across the codebase rather than pooling in a few files, in the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026)files 30,308 · top5 share 0.014 · history read the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026)
04.debt_markers debt markers are sparsemarkers 40 · per kloc 0.13 · lines read 302,165
04.dependency_sprawl direct dependency counts are unremarkable
04.test_growth test effort kept pace with code written, in the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026)history read the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026) · late test per code 0.059 · early test per code 0.012
04.churn_trend rework is not rising against new work, in the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026)history read the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026) · late delete per insert 0.912 · early delete per insert 0.749
04.eol_runtime every pinned runtime is still supportedeol as of 2026-09-24
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 2,403 · compat files 0
04.dependency_redundancy one library per job, mostly
06.telemetry_presence a telemetry or error-reporting library is referencednote presence only; whether anyone watches it is not visible here · matches 24
06.correlation_ids a request can be followed through the logstracing False · request id sites 23
06.usage_reporting_default the product's code names no reporting hostsettings on 0 · settings off 1
06.release_markers releases are markedtags last year 0 · release commits 1 · changelog commits 11
06.migrate_on_start migrations do not run at container start
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 19 · joined 44 · regular last year 64
02.merge_discipline a meaningful share of recent change carries evidence of reviewmerges 4,341 · window last 24 months · with tracked 129
02.ci_presence CI configuration is present in the working treecount 16
02.conventional_commits commit subjects generally carry content, in the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026)sampled 40,360 · history read the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026) · low content share 0.046
02.branch_protection_hints process scaffolding is present in the repository
02.skipped_tests few tests are switched offfocused 0 · skipped 0 · test files 125
02.ci_test_gating no test run in CI is written so that it cannot failconfigs 16
02.revert_share change is rarely undoneshare 0.01 · reverts 127 · recent commits 12,732
02.dependency_update_cadence dependencies move with the codelockfiles 2 · commits since 1 · days since lockfile changed 0
02.lint_in_build a linter or formatter runs in the buildwired 1 · ci configs 16 · product files 2,403
02.long_lived_branches the typical branch reaches the trunk quicklyshare 0.009 · merges 2,117 · long lived 20
02.commit_size changes arrive in reviewable sizesshare 0.003 · commits 11,365 · over 2000 lines 32
01.burst_import the largest burst was data and assets (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 it, in the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026)history read the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026) · largest commits e6ccd56..35b1238 · bursts explained 1
01.message_uniformity commit subjects vary in wording and length, in the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026)history read the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026) · length stdev 17.79 · repeat share 0.154
01.duplicated_blocks little shipping code is repeated verbatim across filesshare 0.001 · product files 2,383 · distinct blocks 198,688
01.swallowed_errors errors are rarely thrown awayloc 304,839 · files 7 · per kloc 0.03
01.unfinished_migration no language migration is stalled halfway
01.weights_in_git weights are stored through LFS or DVCfiles 10
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 2,675
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_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 51 · pipe to shell 0 · unpinned third party 2
05.sql_from_strings no SQL is assembled from strings in product codefiles 0 · sites 0 · value interpolated 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_copyleft_inherited every licence found in vendored code is permissive or weak-copyleftvendored paths 5
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.deprecations_lingering few deprecations have outlived two yearsolder than two years 0 · files with deprecations 1
04.dependency_churn few dependencies were added and dropped within 60 daysdependencies seen 149 · added in two years 56 · removed within 60 days 9
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.release_branch the newest release was cut from the branch surveyed, in the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026)elsewhere 0 · on branch 2 · history read the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026)
03.single_maintainer no file says one person maintains itstatements 0
05.project_exploited no affecting advisory is on CISA's Known Exploited listexploited 0

Could not conclude, or did not apply — 32

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

SignalWhy
04.schema_churnno schema migrations to read
06.structured_loggingnot assessed for Scala: its logging setup is not read
06.telemetry_depthnone at all is 06.1
06.print_loggingnot assessed for Scala: its logger calls are not read
06.alert_rulesno alert rules in the repository; they may live in a console
06.deployed_image_floatsno deployment descriptor names an image
06.probes_identicalno Kubernetes probes
06.single_replicano Kubernetes deployments
06.feature_flagsno feature-flag service; flags may live elsewhere
03.active_contributorsnot assessed: this check needs the whole history, and only the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026) were read
03.knowledge_silosnot assessed: this check needs the whole history, and only the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026) were read
03.drive_by_contributorsnot assessed: this check needs the whole history, and only the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026) were read
03.contributor_attritionnot assessed: this check needs the whole history, and only the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026) were read
02.release_cadencenot assessed: this check needs the whole history, and only the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026) were read
01.initial_dumpnot assessed: this check needs the whole history, and only the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026) were read
01.revision_depthnot assessed: this check needs the whole history, and only the most recent 50,000 commits (28 Sep 2018 to 27 Sep 2026) were read
01.build_reproducibilityno product Dockerfile to read
01.notebook_outputsnot a data or machine-learning repository
05.secrets_in_historyno credential-shaped string was added outside test and fixture paths in the 20,000 most recent commits scanned; older history was not read
05.container_runs_as_rootno Dockerfile to read
05.outbound_timeoutsnot assessed for Scala or TypeScript, the languages the product is written in: this check's patterns read other languages only
05.migration_reversibilitytoo few migrations to judge
05.resource_limitsno Kubernetes workload manifests
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_manifest_conflictno packaging manifest states a licence
04.flags_accumulatingfew or no feature flags in the history
04.api_versions_coexistingone API version is served, or none
05.project_advisoriescould not tell whether 16 published advisories affect the surveyed code: its version could not be placed
BOREHOLE READING NOT A CERTIFICATION MB1H-RARD-FXDH 2026-09-29 · 7E4C1E1 BOREHOLE.DEV/VERIFY

Anyone can check this report against the authoritative record — click the stamp, or enter MB1H-RARD-FXDH 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/lichess-org/lila/7e4c1e1.svg "Borehole free reading: not for reliance. See the full report.")](https://borehole.dev/verify/MB1HRARDFXDH?via=badge)

Borehole reading MB1H-RARD-FXDH, not a certification

This commit has been surveyed 10 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
2026-09-29 · shown borehole 0.7.6 14 adequate
9 other readings (show)
2026-10-04 borehole 0.7.13 14 adequate
2026-10-03 borehole 0.7.12 14 adequate
2026-10-03 borehole 0.7.11 14 adequate
2026-10-02 borehole 0.7.10 14 adequate
2026-10-01 borehole 0.7.9 14 adequate
2026-09-30 borehole 0.7.8 14 adequate
2026-09-28 borehole 0.7.5 15 adequate
2026-09-28 borehole 0.7.4 15 adequate
2026-09-27 borehole 0.7.3 10 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 — 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 authenticated: False
57.2s cloned the repository to a temporary directory depth: full
99.8s read the git history commits: 50000tracked files: 15996
247.4s ran the deterministic checks blame pass: Falseread working tree: False
247.4s recorded where this scan ran attested: Falseenvironment: cloud-run
321.5s kept the facts, never the source, for re-reading under new checks
321.5s deleting the working copy

Total 321.5s ·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 0.7.6 DETERMINISTIC LAYER · NO MODEL CALLSREAD ON BOREHOLE'S SERVER · CLONE DELETED TAKEDOWNCONTRIBUTED TO THIS REPOSITORY? YOUR RIGHTS