Borehole · Risk register · free tier
gabime/spdlog
Free reading: not for reliance
Borehole badge for gabime/spdlog
77336f7 · 4,509 commits · 186 files
Issued 2026-10-04

Nothing significant. Questions worth asking about Security & Reliability Posture.

106 checks ran across 6 assessable dimensions. None found a significant problem; 1 raised something worth a question. 4 findings, each with evidence. One dimension cannot be assessed without an acquirer.

strong adequate significant findings not assessable from a repository
Provenance disclosure does not affect any rating
3% of the code standing today was written in AI-declared commits
3% of lines still in the tree 903 of 35,217 0% of lines ever added these differ when early hand-written code has since been replaced
24% of lines added in the last 12 months (since 2025-09-30) arrived in AI-declared commits: 9/74 commits, confidence low. Also a floor.
9/3,927 commits declaring an agent · Claude, GitHub Copilot
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
  • deep scan blamed 186 of 186 counted files
1,328 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
01.3

Commit messages are templated rather than written

adequate

37% of commit subjects are exact repeats of another subject, and subject length varies by only 22.3 characters. A log written by someone explaining their reasoning to a future reader does not look like this. The log is therefore weak evidence of intent, whatever the code is like.

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

Evidence
commit-subjects 371× 'Update README.md'
commit-subjects 59× 'clang-format'
commit-subjects 46× 'astyle'
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.

01.6

include/spdlog/fmt/bundled/format.h is 4,396 lines, 51× this codebase's median file

adequate

The median source file here is 85 lines. 5 files exceed 1,000 lines, the largest being 4,396. 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 include/spdlog/fmt/bundled/format.h:1 — 4,396 lines (51× median)
line-count include/spdlog/fmt/bundled/base.h:1 — 3,011 lines (35× median)
line-count include/spdlog/fmt/bundled/chrono.h:1 — 2,247 lines (26× median)
line-count include/spdlog/fmt/bundled/format-inl.h:1 — 1,949 lines (22× median)
line-count include/spdlog/pattern_formatter-inl.h:1 — 1,353 lines (15× 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 ↑
A note that does not affect this rating
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.

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

Evidence
process-scaffolding 1 of 5 markers present across 186 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 · not assessable · ratings ↑

Not rated: this repository belongs to a person rather than an organisation, so a finding about one contributor would be about someone the address names; the public report does not carry those, and does not rate this dimension without them. What a person adds here.

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 186 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 4 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

2 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. 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

Not rated: this repository belongs to a person rather than an organisation, so a finding about one contributor would be about someone the address names; the public report does not carry those, and does not rate this dimension without them.

  1. Which of the people who wrote this are 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

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 4 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 C codebase. Does your engineering organisation already run C in production, or would this be the first? 07.1
  2. The bulk of this system sits in include/, src/, cmake/. 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 — 102 signals that ran and did not fire

Appendix: rejection log — 102 signals that ran and did not fire

Published on purpose. A signal that looked and decided not to fire has told you something, and this is the calibration data behind every threshold above.

Looked, and found nothing — 57

SignalWhat it found
04.hotspot_concentration change is spread across the codebase rather than pooling in a few filesfiles 703 · top5 share 0.165
04.debt_markers debt markers are sparsemarkers 0 · per kloc 0.0 · lines read 34,550
04.test_growth test effort kept pace with code writtenlate test per code 0.417 · early test per code 0.183
04.churn_trend rework is not rising against new worklate delete per insert 0.87 · early delete per insert 0.9
04.fixes_with_tests fixes usually come with a testfixes 54 · share 0.222 · with tests 12
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 173
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 withheld: this check's result would describe one person
03.active_contributors withheld: this check's result would describe one person
03.knowledge_silos withheld: this check's result would describe one person
03.drive_by_contributors withheld: this check's result would describe one person
03.contributor_attrition withheld: this check's result would describe one person
03.critical_path_ownership withheld: this check's result would describe one person
03.second_contributor_attrition withheld: this check's result would describe one person
03.bus_factor_trend withheld: this check's result would describe one person
02.merge_discipline a meaningful share of recent change carries evidence of reviewmerges 1 · window last 24 months · with tracked 4
02.ci_presence CI configuration is present in the working treecount 3
02.test_presence tests are present in a normal proportion to sourcetests 34 · source 151 · test ratio 0.225
02.release_cadence tags are presenttags 45
02.conventional_commits commit subjects generally carry contentsampled 3,927 · low content share 0.099
02.ci_runs_tests CI invokes a test runnerconfigs 3 · with tests 2
02.skipped_tests few tests are switched offfocused 0 · skipped 0 · test files 36
02.ci_test_gating no test run in CI is written so that it cannot failconfigs 3
02.revert_share change is rarely undoneshare 0.012 · reverts 2 · recent commits 169
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 1 · ci configs 3 · product files 117
02.commit_size changes arrive in reviewable sizesshare 0.013 · commits 156 · over 2000 lines 2
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 1,287 · share of insertions 0.0031
01.revision_depth most files were revisited after they were first writtenfiles seen 136 · write once share 0.044
01.duplicated_blocks little shipping code is repeated verbatim across filesshare 0.0021 · product files 117 · distinct blocks 17,540
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 173
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 382,389
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 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_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.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 129.5 · days since last tag 269 · commits last 90 days 18
04.release_branch the newest release was cut from the branch surveyedelsewhere 1 · on branch 44 · tags in window 45
03.single_maintainer withheld: this check's result would describe one person
05.project_advisories no published advisory affects the surveyed versionaffecting 0 · exploited 0 · advisories 1
05.advisory_record 1 advisory in the last 24 months, none high or critical, none affecting the surveyed version; the newest on 2025-06-16newest 2025-06-16 · critical 0 · affecting 0
05.project_exploited no affecting advisory is on CISA's Known Exploited listexploited 0

Could not conclude, or did not apply — 45

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

SignalWhy
04.dependency_sprawlno recognised dependency manifest found
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.structured_loggingnot assessed for C, the language the product is written in: this check's patterns read other languages only
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.joiners_and_leaverswithheld: this check's result would describe one person
02.dependency_update_cadenceno lockfile to date
02.long_lived_branchestoo few merges to judge (squash and rebase leave none)
01.swallowed_errorsnot assessed for C, the language the product is written in: this check's patterns read other languages only
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.shell_from_stringsnot assessed for C, the language the product is written in: this check's patterns read other languages only
05.unsafe_deserializationnot assessed for C, the language the product is written in: this check's patterns read other languages only
05.tls_verification_offnot assessed for C, the language the product is written in: this check's patterns read other languages only
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
05.license_manifest_conflictno packaging manifest states a licence
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
04.dependency_churnfew dependencies were added and dropped within 60 days
BOREHOLE READING NOT A CERTIFICATION AZR1-40JA-1W21 2026-10-04 · 77336F7 BOREHOLE.DEV/VERIFY

Anyone can check this report against the authoritative record — click the stamp, or enter AZR1-40JA-1W21 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/gabime/spdlog/77336f7.svg "Borehole free reading: not for reliance. See the full report.")](https://borehole.dev/verify/AZR140JA1W21?via=badge)

Borehole reading AZR1-40JA-1W21, not a certification

This commit has been surveyed 5 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
2026-10-04 · shown borehole 0.7.13 4 adequate
4 earlier (show)
2026-10-03 borehole 0.7.12 4 adequate
2026-10-03 borehole 0.7.11 4 adequate
2026-10-02 borehole 0.7.10 4 adequate
2026-10-01 borehole 0.7.9 4 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 — 4 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 re-read from the facts kept at the last survey; nothing was cloned facts version: 1d7c04ef8dca7905
2.7s ran the deterministic checks blame pass: Trueread working tree: False
2.7s withheld findings about one contributor: the owner is a person withheld: 0owner kind: person
2.7s recorded where this scan ran attested: Falseenvironment: cloud-run

Total 2.7s ·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 0.7.13 DETERMINISTIC LAYER · NO MODEL CALLSREAD ON BOREHOLE'S SERVER · CLONE DELETED TAKEDOWNCONTRIBUTED TO THIS REPOSITORY? YOUR RIGHTS