Borehole · Risk register · free tier
grafana/mimir
Free reading: not for reliance
Borehole badge for grafana/mimir
d4e93fd · 16,252 commits · 15,674 files
Issued 2026-10-22

Nothing significant. Questions worth asking about Security & Reliability Posture, Architecture & Codebase — including AI provenance.

105 checks ran across 6 assessable dimensions. 1 finding is worth checking first. 12 findings, each with evidence. One dimension cannot be assessed without an acquirer.

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 3 locked dependencies have published vulnerabilities, 1 high or critical in what ships
Published under today's rules. The verification code attests to this reading as it was stored. This page differs from it as follows.
  • 1 finding from checks Borehole's calibration found wrong more often than right is no longer published.
strong adequate significant findings not assessable from a repository
Provenance disclosure does not affect any rating
2% of added lines arrived in commits declaring an AI agent as co-author
The surviving-lines measurement was not run on this repository.
7% of lines added in the last 12 months (since 2025-10-22) arrived in AI-declared commits: 107/2,624 commits, confidence moderate. Also a floor.
122/15,179 commits declaring an agent · Claude, Claude Fable 5, Claude Opus 4.5 and 16 more
confidence: high
  • 69% of non-merge commits carry any trailer at all
  • no widespread author/committer date divergence
11,011,540 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 ↑
01.25

1 base image floats: no version, or `latest`

adequate

1 of 22 `FROM` lines in product Dockerfiles name an image without a version, or with `latest`. Each build pulls whatever the registry serves that day, so the image that ships can change without a commit, and last month's build cannot be reproduced. Pin a version, or a digest.

Evidence
operations/mimir-mixin-tools/screenshots/Dockerfile operations/mimir-mixin-tools/screenshots/Dockerfile:2 — base image without a version
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.

01.42

1 model weight file committed directly to git

adequate

1 model weight files are stored in git itself, not in LFS, DVC or a model hub. Every clone carries them, the history keeps every version for good, and nothing records which run or data produced them.

Evidence
vendor/sigs.k8s.io/kustomize/kyaml/openapi/kubernetesapi/v1_21_2/swagger.pb vendor/sigs.k8s.io/kustomize/kyaml/openapi/kubernetesapi/v1_21_2/swagger.pb — weights in git
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.

A note that does not affect this rating
01.6

pkg/distributor/distributor.go is 4,055 lines, 28× this codebase's median file

adequate

The median source file here is 143 lines. 13 files exceed 1,430 lines, the largest being 4,055. 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 pkg/distributor/distributor.go:1 — 4,055 lines (28× median)
line-count operations/mimir-mixin/dashboards/dashboard-utils.libsonnet:1 — 2,535 lines (17× median)
line-count pkg/util/validation/limits.go:1 — 2,316 lines (16× median)
line-count pkg/storegateway/bucket.go:1 — 2,200 lines (15× median)
line-count pkg/mimir/modules.go:1 — 1,853 lines (12× median)
Respond to this finding

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

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

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 · adequate · ratings ↑
03.60

The project says one person maintains it

adequate

Its own files say so. Whatever the commit counts show, the project describes itself as depending on one person.

Evidence
GOVERNANCE.md GOVERNANCE.md:24 — says it has a single maintainer
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 ↑
04.3

98 direct dependencies in a single manifest

adequate

go.mod declares 98 direct dependencies. Each one is a maintenance obligation, a supply-chain surface and a potential licence question that transfers with the asset. The count says nothing about whether any given dependency was a good choice; it says how many such choices a buyer inherits.

Evidence
direct-dependencies go.mod — 98 declared
direct-dependencies operations/mimir-mixin-tools/screenshots/go.mod — 3 declared
direct-dependencies mimir-build-image/go.mod — 0 declared
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 ↑
05.6

9 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 cmd/metaconvert/Dockerfile — runs as root
no-USER-instruction cmd/mimir/Dockerfile — runs as root
no-USER-instruction cmd/mimirtool/Dockerfile — runs as root
no-USER-instruction cmd/query-tee/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

3 locked dependencies have published vulnerabilities, 1 high or critical in what ships

adequate worth checking first

3 of 620 locked dependencies match 3 published advisories in OSV, 1 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.

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 go.mod and the 1 other file it cites settles it. If it holds when someone checks it, this finding is significant.

Evidence
go.mod go.mod — github.com/prometheus/prometheus v1.99.0: GHSA-8rm2-7qqf-34qm (high), fixed in 0.311.3
mimir-build-image/go.mod mimir-build-image/go.mod — go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.15.0: GHSA-w34q-cm8f-9c5x (moderate), fixed in 0.21.0
mimir-build-image/go.mod mimir-build-image/go.mod — go.opentelemetry.io/otel/sdk/log v0.19.0: GHSA-hjf4-fphr-2h65 (moderate), fixed in 0.21.0
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
05.13

5 outbound calls can wait forever

adequate

5 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
pkg/frontend/v2/frontend.go pkg/frontend/v2/frontend.go:346 — outbound call without a timeout
pkg/frontend/v2/frontend.go pkg/frontend/v2/frontend.go:356 — outbound call without a timeout
pkg/frontend/v2/frontend.go pkg/frontend/v2/frontend.go:462 — 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.

05.60

Relicensed: Apache-2.0 → AGPL-3.0 (2021-08-05)

adequate

The root licence changed 1 time(s). The latest terms restrict what users, hosts or a buyer may do in ways the earlier ones did not. Code taken under the old terms stays under them, so both matter in diligence.

A note that does not affect this rating: a licence change is a fact for the first screen, and only a narrowing of rights within two years of the surveyed commit costs "strong".

Evidence
2aba2a405 LICENSE — Apache-2.0 from 2016-11-04
174f599c1 LICENSE — AGPL-3.0 from 2021-08-05
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 ↑
06.35

Sends usage data to stats.grafana.org by default

adequate

pkg/usagestats/reporter.go sends to stats.grafana.org, and operations/mimir/mimir-flags-defaults.json leaves reporting on as shipped. Every installation reports to the vendor unless its operator turns this off. For a buyer running it inside their own product, that is an outbound data flow to a third party: ask what is sent, how often, and whether the buyer's customers were told.

Evidence
pkg/usagestats/reporter.go pkg/usagestats/reporter.go:38 — reports to stats.grafana.org
operations/mimir/mimir-flags-defaults.json operations/mimir/mimir-flags-defaults.json:1620 — the reporting setting is on by default
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.

06.14

Readiness and liveness probes are identical in 1 of 1 workloads

adequate

Both probes call the same endpoint. When a dependency slows down, the liveness probe fails with the readiness probe, so the platform restarts pods that only needed taking out of rotation, and a partial outage becomes a full one. Liveness should ask whether the process is alive; readiness whether it can serve.

Evidence
operations/helm/charts/mimir-distributed/values.yaml operations/helm/charts/mimir-distributed/values.yaml — same probe endpoint twice
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.

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

7 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 (pkg/querier/api/DESIGN.md and 7 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 602 people have committed here. Which of them are you acquiring, and which are you replacing? Answer lives in: The deal terms03.29
  2. Who mentors whom, and would that survive a departure? Answer lives in: The team; review history only suggests candidates03.28
  3. Can the team grow, and who stands behind the top three contributors? Answer lives in: Recruiting data and the org chart03.30
  4. Is the seniority mix sound, and will pay survive your salary bands? Answer lives in: HR data03.31
  5. Is the pace sustainable? Commit times cannot say: git keeps no reliable local time. Answer lives in: Interviews and on-call history03.14
  6. Does the team want to stay after close? Answer lives in: Interviews03.32
  7. How are decisions made and disagreements resolved? Answer lives in: Time with the team03.33

Product & Engineering Maturity

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

Security & Reliability Posture

05 · partial coverage
  1. 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 Alert rules are defined in the repository. 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 Go codebase. Does your engineering organisation already run Go in production, or would this be the first? 07.1
  2. The bulk of this system sits in vendor/, pkg/, operations/. Which of your existing systems would each of those have to absorb or replace? 07.10
  3. The repository carries deployment configuration (cmd/metaconvert/Dockerfile and 196 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 — 93 signals that ran and did not fire

Appendix: rejection log — 93 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 — 73

SignalWhat it found
04.hotspot_concentration change is spread across the codebase rather than pooling in a few filesfiles 38,371 · top5 share 0.025
04.debt_markers debt markers are sparsemarkers 194 · per kloc 0.14 · lines read 1,426,131
04.test_growth test effort kept pace with code writtenlate test per code 1.375 · early test per code 0.949
04.churn_trend rework is not rising against new worklate delete per insert 0.549 · early delete per insert 0.575
04.eol_runtime every pinned runtime is still supportedeol as of 2026-09-24
04.fixes_with_tests fixes usually come with a testfixes 538 · share 0.645 · with tests 347
04.fix_share_trend fixing is not crowding out building
04.compat_layers little code is kept for the old wayshare 0.004 · code files 9,143 · compat files 34
06.telemetry_presence a telemetry or error-reporting library is referencednote presence only; whether anyone watches it is not visible here · matches 137
06.structured_logging a structured logging library is referencedmatches 14
06.healthcheck_presence a health or readiness check is defined
06.telemetry_depth the service is visible in more than one way
06.print_logging raw prints are few, or outnumbered by logger callsprints 38 · logger calls 16
06.correlation_ids a request can be followed through the logstracing True · request id sites 19
06.alert_rules alert rules are defined as codealert files 25
06.single_replica an autoscaler or disruption budget is definedworkloads 16
06.environment_branching environment differences live in configurationsites 0
06.release_markers releases are markedtags last year 94 · release commits 9 · changelog commits 1,018
06.migrate_on_start migrations do not run at container start
03.contributor_concentration no single contributor dominates the last 24 monthsyears 3.1 · window last 24 months · authors 602
03.active_contributors more than one contributor active in the trailing yearall time 602 · active 12mo 141
03.knowledge_silos every substantial directory has been touched by more than one personauthors 602 · directories 8
03.drive_by_contributors an open contributor base, where one-commit contributors are normalauthors 602 · one off share 0.553
03.contributor_attrition no contributor dominates enough for their absence to matterauthors 602 · top share less than a quarter · top contributor last committed between three and six months ago
03.critical_path_ownership more than one person changes the critical pathsauthors 211
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 12 · joined 20 · regular last year 52
02.merge_discipline a meaningful share of recent change carries evidence of reviewmerges 133 · window last 24 months · with tracked 201
02.ci_presence CI configuration is present in the working treecount 56
02.test_presence tests are present in a normal proportion to sourcetests 918 · source 1,931 · test ratio 0.475
02.release_cadence tags are presenttags 500
02.conventional_commits commit subjects generally carry contentsampled 15,179 · low content share 0.005
02.branch_protection_hints process scaffolding is present in the repository
02.ci_runs_tests CI invokes a test runnerconfigs 56 · with tests 4
02.skipped_tests few tests are switched offfocused 0 · skipped 0 · test files 3,599
02.ci_test_gating no test run in CI is written so that it cannot failconfigs 56
02.revert_share change is rarely undoneshare 0.005 · reverts 19 · recent commits 3,546
02.dependency_update_cadence dependencies move with the codelockfiles 4 · commits since 11 · days since lockfile changed 0
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 2 · ci configs 56 · product files 9,143
02.long_lived_branches the typical branch reaches the trunk quicklyshare 0.0 · merges 64 · long lived 0
02.commit_size changes arrive in reviewable sizesshare 0.032 · commits 2,987 · over 2000 lines 97
01.burst_import the largest burst was a branch merged by a merge commit, developed on its own branch and landed in one piece (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 itlargest commits 59f0c02..d4f1c5a · bursts explained 1 · largest net added 4,659
01.initial_dump first commit is not a disproportionate share of the codebaseinsertions 0 · share of insertions 0.0
01.message_uniformity commit subjects vary in wording and lengthlength stdev 22.44 · repeat share 0.013
01.revision_depth most files were revisited after they were first writtenfiles seen 1,470 · write once share 0.176
01.duplicated_blocks little shipping code is repeated verbatim across filesshare 0.0031 · product files 1,020 · distinct blocks 166,920
01.swallowed_errors errors are rarely thrown awayloc 1,431,612 · files 0 · per kloc 0.0
01.unfinished_migration no language migration is stalled halfway
05.committed_secrets no credential-shaped strings outside test and fixture pathsnote the working tree only; the history is 05.5 · patterns 8 · files read 5,649
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 93 · pipe to shell 0 · unpinned third party 1
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.resource_limits every workload declares limitsworkloads 16 · without limits 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 10,043
05.license_vendored_unlicensed all 12 vendored components state their terms, in a licence file, their own headers or a notices filecomponents 12 · stated in headers or notices 0
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.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.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 0 · commits last 90 days 445
04.release_branch the newest release was cut from the branch surveyedelsewhere 33 · on branch 136 · tags in window 169

Could not conclude, or did not apply — 20

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

SignalWhy
04.schema_churnno schema migrations to read
04.dependency_redundancyno JavaScript manifest to read
06.deployed_image_floatsno deployment descriptor names an image
06.feature_flagsno feature-flag service; flags may live elsewhere
01.notebook_outputsnot a data or machine-learning repository
05.migration_reversibilitytoo few migrations to judge
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_coexistingthe history scanned covers 17 months, less than the 18 this question needs
04.deprecations_lingeringthe history scanned covers 17 months, less than the 24 this question needs
04.dependency_churnthe history scanned covers 17 months, less than the 24 this question needs
04.ci_platforms_droppedthe history scanned covers 17 months, less than the 24 this question needs
05.project_advisoriesrecord incomplete: no advisory found in the sources that answered; OSV Go github.com/grafana/mimir (an empty record for a package published here) did not
05.advisory_recordrecord incomplete: no advisory against the project in the last 24 months; OSV Go github.com/grafana/mimir (an empty record for a package published here) did not answer
05.project_exploitedno affecting advisory is on CISA's Known Exploited list
BOREHOLE READING NOT A CERTIFICATION YT7P-WT1M-NKTP 2026-10-22 · D4E93FD BOREHOLE.DEV/VERIFY

Anyone can check this report against the authoritative record — click the stamp, or enter YT7P-WT1M-NKTP 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/grafana/mimir/d4e93fd.svg "Borehole free reading: not for reliance. See the full report.")](https://borehole.dev/verify/YT7PWT1MNKTP?via=badge)

Borehole reading YT7P-WT1M-NKTP, 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: 659.4authenticated: False
85.0s cloned the repository to a temporary directory depth: full
162.8s read the git history commits: 16252tracked files: 15674
582.3s ran the deterministic checks blame pass: Falseread working tree: False
582.3s recorded where this scan ran attested: Falseenvironment: cloud-run
900.2s kept the facts, never the source, for re-reading under new checks
900.2s deleting the working copy

Total 900.2s ·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