Borehole · Risk register · free tier
mongodb/mongo
Free reading: not for reliance
Borehole badge for mongodb/mongo
2c991c8 · 50,000 commits · 55,721 files
Issued 2026-10-22

Reads strong: 3 of 5 rated dimensions are strong, 2 are adequate and none is significant.

103 checks ran across 6 assessable dimensions. Security & Reliability Posture and Product & Engineering Maturity are adequate. 1 finding is worth checking first. 12 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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What the repository says about itself
Worth checking first

Borehole's proprietary scoring is calibrated across hundreds of repositories. Each finding here reads significant, but its check has not yet held up often enough in that calibration to rate significant on its own. If one holds when someone checks it, it is significant.

  • 05.26 23 locked dependencies have published vulnerabilities, 2 high or critical in what ships
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.
Published under today's rules. The verification code attests to this reading as it was stored. This page differs from it as follows.
  • 3 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
1% of lines added in the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026) arrived in commits declaring an AI agent as co-author
The surviving-lines measurement was not run on this repository.
4% of lines added in the last 12 months (since 2025-10-22) arrived in AI-declared commits: 345/11,174 commits, confidence high. Also a floor.
Measured over the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026) only. Older history was not read.
348/50,000 commits declaring an agent · Claude, Claude Code, Claude Fable 5 and 14 more
confidence: high
  • 54% of non-merge commits carry any trailer at all
  • no widespread author/committer date divergence
19,510,561 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 ↑
A note that does not affect this rating
01.6

jstests/auth/lib/commands_lib.js is 11,156 lines, 107× this codebase's median file

adequate

The median source file here is 104 lines. 196 files exceed 1,040 lines, the largest being 11,156. 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 jstests/auth/lib/commands_lib.js:1 — 11,156 lines (107× median)
line-count src/mongo/bson/column/bsoncolumn_test.cpp:1 — 10,505 lines (101× median)
line-count src/mongo/bson/column/bson_column_compressed_data.inl:1 — 9,424 lines (90× median)
line-count jstests/libs/write_concern_all_commands.js:1 — 7,041 lines (67× median)
line-count src/mongo/db/fts/unicode/codepoints_diacritic_map.cpp:1 — 5,491 lines (52× median)
Respond to this finding

Your response is published beside the finding, not instead of it. A finding you can argue with is the point — and a wrong one is calibration data we want.

An owner's response is removed only when it is unlawful, impersonates someone, publishes personal data or a credential, or is not about the finding. Disagreeing with the report is never a reason. To report a response, or to reach us about one, write to takedown@borehole.dev.

Engineering Process & SDLC Maturity

02 · strong · ratings ↑

No finding. 16 checks ran and none fired; the rejection log below says why each did not.

Organization & Key-Person Risk

03 · strong · ratings ↑

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

Product & Engineering Maturity

04 · adequate · ratings ↑
04.19

8% of bug fixes add or change a test

adequate

Of 1362 fixes in the last 24 months, 106 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 106 of 1362
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 ↑
05.2

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 55,721 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.

05.6

2 Dockerfiles run the application as root

adequate

No USER instruction switches away from root, so the process runs with full privileges inside the container. It is a one-line fix and an ordinary expectation, which is why its absence is worth asking about: it usually says more about whether anyone has reviewed the deployment than about this container specifically.

Evidence
no-USER-instruction buildscripts/antithesis/base_images/mongo_binaries/Dockerfile — runs as root
no-USER-instruction buildscripts/antithesis/base_images/workload/Dockerfile — runs as root
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.

05.26

23 locked dependencies have published vulnerabilities, 2 high or critical in what ships

adequate worth checking first

23 of 294 locked dependencies match 76 published advisories in OSV, 49 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.

The check that found this reads significant, but it has not yet held up often enough in Borehole's calibration to rate a finding significant on its own. Opening uv.lock settles it. If it holds when someone checks it, this finding is significant.

Evidence
uv.lock uv.lock — certifi 2026.6.17: GHSA-6q48-6c7w-9gw2 (critical), fixed in 2026.10.19; a development dependency
uv.lock uv.lock — gitpython 3.1.50: GHSA-284h-m62q-gf8w (critical), fixed in 3.1.59; a development dependency
uv.lock uv.lock — uv 0.11.13: GHSA-hq85-5cpj-mr62 (critical), fixed in 0.13.4; a development dependency
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.

Notes that do not affect this rating
05.27

The build runs third-party code it does not pin

adequate

8 steps pipe a download straight into a shell. Tags have been moved to malicious commits in real supply-chain attacks, and a piped script is whatever the server returns that minute. Pinning to a commit is the fix, and it is small.

A note that does not affect this rating: notes like it are common in well-run projects.

Evidence
buildscripts/build_cargo_bazel_ppc64le.sh buildscripts/build_cargo_bazel_ppc64le.sh:33 — download piped into a shell
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.

05.13

15 outbound calls can wait forever

adequate

15 HTTP calls use a client with no timeout (Python `requests` without `timeout=`, or Go's default client). When a dependency slows down, each one holds a worker until the connection gives up, and enough of them take the service down with the dependency.

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

Evidence
buildscripts/client/github.py buildscripts/client/github.py:25 — outbound call without a timeout
buildscripts/collect_resource_info.py buildscripts/collect_resource_info.py:49 — outbound call without a timeout
buildscripts/download_sys_perf_binaries.py buildscripts/download_sys_perf_binaries.py:20 — outbound call without a timeout
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.

05.21

21 shell commands built from strings

adequate

21 places run a command through a shell (`shell=True`, `os.system`, `exec` with a template) rather than passing arguments. Where any part comes from outside, it is command injection. Ask where each one's input comes from.

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

Evidence
bazel/hermetic_container/hermetic_container.py bazel/hermetic_container/hermetic_container.py:382 — command run through a shell
bazel/hermetic_container/hermetic_container.py bazel/hermetic_container/hermetic_container.py:386 — command run through a shell
bazel/hermetic_container/hermetic_container.py bazel/hermetic_container/hermetic_container.py:403 — command run through a shell
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.

05.22

15 deserialisers that can run code

adequate

15 places read data with a deserialiser that executes what it reads (`yaml.load` without a safe loader). That is safe on data the system wrote itself and remote code execution on anything else. Ask where each one's input comes from.

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

Evidence
bazel/resmoke/derive_suite_selectors.py bazel/resmoke/derive_suite_selectors.py:59 — code-executing deserialiser
bazel/resmoke/derive_suite_selectors.py bazel/resmoke/derive_suite_selectors.py:258 — code-executing deserialiser
buildscripts/config_diff.py buildscripts/config_diff.py:264 — code-executing deserialiser
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

15 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.

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

Evidence
bazel/third_party/BUILD.bazel bazel/third_party/BUILD.bazel — 1 tracked files, no licence file
bazel/third_party/grpc_cross_rbe.patch bazel/third_party/grpc_cross_rbe.patch — 1 tracked files, no licence file
bazel/third_party/protobuf_cross_rbe.patch bazel/third_party/protobuf_cross_rbe.patch — 1 tracked files, no licence file
jstests/third_party/BUILD.bazel jstests/third_party/BUILD.bazel — 1 tracked files, no licence file
src/third_party/IntelRDFPMathLib20U1 src/third_party/IntelRDFPMathLib20U1 — 345 tracked files, no licence file
src/third_party/boringssl_replacement src/third_party/boringssl_replacement — 2 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.

05.66

The licence is SSPL-1.0 with additional terms: source available, not open source

adequate

LICENSE-Community.txt grants SSPL-1.0 with additional terms: source available, not open source; offering it as a service obliges publishing the whole service stack. The reading comes from the licence's own title and clauses. Whether the terms fit the buyer's intended use, and whether any paid licence transfers with the code, is a question for counsel and the licensor.

A note that does not affect this rating: it names the project's licence, a fact for the first screen rather than a weakness.

Evidence
LICENSE-Community.txt LICENSE-Community.txt:1 — 557 lines, SSPL-1.0 AND LicenseRef-Terms-Additional
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 7 of 16 checks could reach a conclusion here; the rest do not apply to this repository or could not read it. The findings below are what it could still read.

A note that does not affect this rating
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.

A note that does not affect this rating: notes like it are common in well-run projects.

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.

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

8 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 The tree carries design documentation (bazel/docs/architecture/ppc64le_build_from_source.md and 3 more). Does it match what the team believes today? Ask them to walk through it against the code. 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 675 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. measured No experiment tracking is configured in the repository. How was the shipped model trained and evaluated, and could it be reproduced? Answer lives in: The ML team and its run history04.34
  2. measured No model card is in the tree. What is the model's intended use, what was it trained on, and where does it fail? Answer lives in: The ML team04.35
  3. 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
  4. Does leadership know about the debt, and is time budgeted to repay it? Answer lives in: Budget and roadmap decisions04.31
  5. 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 05.5 found credential-shaped strings in this repository. Was each one revoked at the provider? Deleting it from the code revokes nothing; only the provider's audit log shows that it was. Answer lives in: The provider's console and audit log05.38
  2. 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
  3. measured Infrastructure code (buildscripts/resmokeconfig/suites/serverless.yml) last changed 13 months before the newest commit, while 11,497 commits landed. Is the infrastructure now changed by hand? Compare the live account with the code. Answer lives in: The cloud console05.36
  4. What has actually broken, how often, and how badly? Answer lives in: Ticketing and chat05.41
  5. What did external testing find, and was it fixed? Answer lives in: Reports in the data room05.42
  6. 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 7 of 16 checks could reach a conclusion here; the rest do not apply to this repository or could not read it.

  1. measured Backup or restore tooling is in the tree (buildscripts/resmokeconfig/suites/backup_restore.yml). Has a restore ever been rehearsed, and how long did it take? 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 JavaScript codebase, with C++ alongside (32% of source files). 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 src/, jstests/, buildscripts/. Which of your existing systems would each of those have to absorb or replace? 07.10
  3. The repository carries deployment configuration (bazel/hermetic_container/Dockerfile.hermetic_container and 4 more). Does that match your deployment and on-call model, or does it need rehosting first? 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 — 91 signals that ran and did not fire

Appendix: rejection log — 91 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 — 56

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 (23 Sep 2020 to 22 Oct 2026)files 114,107 · top5 share 0.012 · history read the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026)
04.debt_markers debt markers are sparsemarkers 2,882 · per kloc 1.38 · lines read 2,092,216
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 (23 Sep 2020 to 22 Oct 2026)history read the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026) · late test per code 0.11 · early test per code 0.014
04.churn_trend rework is not rising against new work, in the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026)history read the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026) · late delete per insert 0.671 · early delete per insert 0.535
04.fix_share_trend fixing is not crowding out building
04.compat_layers little code is kept for the old wayshare 0.002 · code files 34,798 · compat files 54
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 104
06.healthcheck_presence a health or readiness check is defined
06.telemetry_depth the service is visible in more than one way
06.usage_reporting_default the product's code names no reporting hostsettings on 4 · settings off 0
06.release_markers releases are markedtags last year 81 · release commits 0 · changelog commits 26
06.migrate_on_start migrations do not run at container start
03.contributor_concentration no single contributor dominates the last 24 monthswindow last 24 months · authors 675 · top share less than a quarter
03.critical_path_ownership more than one person changes the critical pathsauthors 406
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 48 · joined 85 · regular last year 283
02.merge_discipline a meaningful share of recent change carries evidence of reviewmerges 0 · window last 24 months · with tracked 0
02.ci_presence CI configuration is present in the working treecount 9
02.test_presence tests are present in a normal proportion to sourcetests 2,857 · source 19,072 · test ratio 0.15
02.conventional_commits commit subjects generally carry content, in the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026)sampled 50,000 · history read the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026) · low content share 0.0
02.branch_protection_hints process scaffolding is present in the repository
02.skipped_tests few tests are switched offfocused 0 · skipped 0 · test files 5,072
02.ci_test_gating no test run in CI is written so that it cannot failconfigs 9
02.revert_share change is rarely undoneshare 0.012 · reverts 231 · recent commits 18,506
02.dependency_update_cadence dependencies move with the codelockfiles 4 · commits since 271 · days since lockfile changed 9
02.flaky_test_markers tests are not retried until they passtest retries 0 · suite retries 0
02.lint_in_build a linter or formatter runs in the buildwired 3 · ci configs 9 · product files 34,798
02.commit_size changes arrive in reviewable sizesshare 0.019 · commits 16,859 · over 2000 lines 319
01.burst_import the largest burst was documentation and notebooks (55% 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 (23 Sep 2020 to 22 Oct 2026)history read the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026) · largest commits 8db5546..e91d900 · bursts explained 1
01.message_uniformity commit subjects vary in wording and length, in the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026)history read the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026) · length stdev 21.72 · repeat share 0.025
01.duplicated_blocks little shipping code is repeated verbatim across filesshare 0.0151 · product files 11,202 · distinct blocks 1,267,221
01.build_reproducibility every base image names a versionfloating 0 · from lines 2
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 11,333
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.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.dataset_provenance data files carry a licence or carddata files 1 · licence or card files 2
05.license_copyleft_inherited the project is itself SSPL-1.0, so copyleft components carry no obligation it has not already acceptedown license SSPL-1.0 · copyleft components 2
05.committed_native_libraries no widely used compiled library is committed to the productlibraries 0
04.flags_accumulating flags are retired about as fast as they are addedlive 11 · retired 4 · flags seen 15
04.deprecations_lingering few deprecations have outlived two yearsolder than two years 0 · files with deprecations 6
04.dependency_churn few dependencies were added and dropped within 60 daysdependencies seen 264 · added in two years 70 · removed within 60 days 0
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 0 · 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 0.0 · days since last tag 8 · commits last 90 days 2,106
04.release_branch the newest release was cut from the branch surveyed, in the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026)elsewhere 0 · on branch 0 · history read the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026)
03.single_maintainer no file says one person maintains itstatements 0

Could not conclude, or did not apply — 35

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

SignalWhy
04.eol_runtimeno pinned runtime version to check
04.schema_churnno schema migrations to read
06.structured_loggingnot assessed for C++, the language the product is written in: this check's patterns read other languages only
06.print_loggingnot assessed for C++: its logger calls are not read
06.correlation_idsnot assessed for C++, the language the product is written in: this check's patterns read other languages only
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.environment_branchingnot assessed for C++, the language the product is written in: this check's patterns read other languages only
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 (23 Sep 2020 to 22 Oct 2026) were read
03.knowledge_silosnot assessed: this check needs the whole history, and only the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026) were read
03.drive_by_contributorsnot assessed: this check needs the whole history, and only the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026) were read
03.contributor_attritionnot assessed: this check needs the whole history, and only the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026) were read
02.release_cadencenot assessed: this check needs the whole history, and only the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026) were read
02.long_lived_branchestoo few merges to judge (squash and rebase leave none)
01.initial_dumpnot assessed: this check needs the whole history, and only the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026) were read
01.revision_depthnot assessed: this check needs the whole history, and only the most recent 50,000 commits (23 Sep 2020 to 22 Oct 2026) were read
01.swallowed_errorsnot assessed for C++, the language the product is written in: this check's patterns read other languages only
01.notebook_outputstoo few notebooks
05.migration_reversibilitytoo few migrations to judge
05.sql_from_stringsnot 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.public_env_secretnot a frontend
05.unsafe_htmlnot a frontend
05.source_maps_shippednot a frontend
05.cleartext_trafficnot a mobile app
05.license_manifest_conflictno packaging manifest states a licence
04.api_versions_coexistingone API version is served, or none
04.ci_platforms_droppedno platform was dropped from CI in the last two years
05.project_advisoriesrecord incomplete: no advisory found in the sources that answered; NVD did not
05.advisory_recordrecord incomplete: no advisory against the project in the last 24 months; NVD did not answer
05.project_exploitedno affecting advisory is on CISA's Known Exploited list
BOREHOLE READING NOT A CERTIFICATION 9XD0-0RRF-XB6M 2026-10-22 · 2C991C8 BOREHOLE.DEV/VERIFY

Anyone can check this report against the authoritative record — click the stamp, or enter 9XD0-0RRF-XB6M 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/mongodb/mongo/2c991c8.svg "Borehole free reading: not for reliance. See the full report.")](https://borehole.dev/verify/9XD00RRFXB6M?via=badge)

Borehole reading 9XD0-0RRF-XB6M, 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: 1402.5authenticated: False
232.1s cloned the repository to a temporary directory depth: full
420.2s read the git history commits: 50000tracked files: 55721
1097.6s ran the deterministic checks blame pass: Falseread working tree: False
1097.7s recorded where this scan ran attested: Falseenvironment: cloud-run
1552.4s kept the facts, never the source, for re-reading under new checks
1552.4s deleting the working copy

Total 1552.4s ·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