Borehole · Risk register · free tier
airbytehq/airbyte
Free reading: not for reliance
Borehole badge for airbytehq/airbyte
206c725 · 50,000 commits · 19,368 files
Issued 2026-10-22

Elastic-2.0 since 2021-09-27: source available, not open source; offering it as a managed service is not allowed.

1 of 6 assessable dimensions carries significant findings, 3 are adequate and 2 are strong. 1 finding is worth checking first. 21 findings, each with its evidence: the commit, path and lines it rests on, or, when something is missing, what was looked for. One dimension cannot be assessed without an acquirer.

What matters most
  • 05.60 Elastic-2.0 since 2021-09-27: source available, not open source; offering it as a managed service is not allowed
  • 03.1 Significant: Bus factor 1: recent work is concentrated in one contributor
What the repository says about itself
  • 04.61 No release for 12 months while development continues
  • 05.66 The licence is Elastic-2.0: source available, not open source LICENSE:1
  • 05.60 Relicensed: MIT → Elastic-2.0 (2021-09-27) LICENSE.md
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.

  • 05.26 117 locked dependencies have published vulnerabilities, 86 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.
  • 4 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
17% of lines added in the most recent 50,000 commits (10 Mar 2022 to 22 Oct 2026) arrived in commits declaring an AI agent as co-author
The surviving-lines measurement was not run on this repository.
57% of lines added in the last 12 months (since 2025-10-22) arrived in AI-declared commits: 2,553/15,009 commits, confidence moderate. Also a floor.
Measured over the most recent 50,000 commits (10 Mar 2022 to 22 Oct 2026) only. Older history was not read.
2,713/49,992 commits declaring an agent · Claude, Claude Fable 5, Claude Fable 5.1 and 21 more
confidence: low
  • 42% 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
  • the declared share is neither decisive nor negligible, so the true figure is more sensitive to undeclared work
1,781,421 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

airbyte-integrations/connectors/source-shopify/source_shopify/shopify_graphql/bulk/query.py is 3,763 lines, 63× this codebase's median file

adequate

The median source file here is 59 lines. 10 files exceed 1,000 lines, the largest being 3,763. 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.

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 · significant findings · ratings ↑
03.1

Bus factor 1: recent work is concentrated in one contributor

significant findings

In the last 24 months, one contributor authored three-quarters or more of 17,989 non-merge commits among 322 authors; across all 34,865 commits read, a quarter or more of 34,865. This is the single most expensive thing to discover after closing, and the repository cannot tell you whether that person is part of the transaction.

Evidence
git shortlog -sn last 24 months: top author three-quarters or more of 17,989 commits; bus factor 1; 322 authors
Respond to this finding

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

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

03.12

The next contributor after the top one has not committed here for more than a year

adequate

The #2 contributor of the last three years (less than a quarter of the commits) has not committed here for more than a year, while the repository is still active. These are the people a buyer assumes would step up if the top contributor stopped. The history shows only that no commits of theirs landed here, not why.

Evidence
git shortlog -sn the #2 contributor of the last three years (less than a quarter of the commits) has not committed here for more than a year
Respond to this finding

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

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

03.27

Regular contributors fell from 91 to 49 in a year

adequate

53 people who committed regularly the year before made no commits in the last year, and 16 new regular contributors arrived. Ask whether the work they did is still covered.

Evidence
regular contributors by year 91 then 49; 53 stopped committing, 16 began
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

132 direct dependencies in a single manifest

adequate

docusaurus/package.json declares 132 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 docusaurus/package.json — 132 declared
direct-dependencies airbyte-integrations/connectors/source-file/pyproject.toml — 18 declared
direct-dependencies airbyte-integrations/connectors/source-s3/pyproject.toml — 10 declared
direct-dependencies airbyte-integrations/connectors/destination-motherduck/pyproject.toml — 8 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.

04.28

11% of the code is legacy or compatibility code, the oldest 38 months old

adequate

288 of 2506 source files sit in paths named legacy, compat, shim, polyfill or deprecated, and some have been there 38 months. That is usually a migration that never finished. Ask whether finishing it is planned, and what keeping both costs.

Evidence
airbyte-cdk/bulk/toolkits/legacy-source-integration-tests/src/testFixtures/resources/image_exists.sh airbyte-cdk/bulk/toolkits/legacy-source-integration-tests/src/testFixtures/resources/image_exists.sh — legacy or compatibility code
airbyte-cdk/bulk/toolkits/legacy-task-load-avro/src/main/kotlin/io/airbyte/cdk/load/command/avro/AvroFormatCompressionCodecSpecification.kt airbyte-cdk/bulk/toolkits/legacy-task-load-avro/src/main/kotlin/io/airbyte/cdk/load/command/avro/AvroFormatCompressionCodecSpecification.kt — legacy or compatibility code
airbyte-cdk/bulk/toolkits/legacy-task-load-avro/src/main/kotlin/io/airbyte/cdk/load/data/avro/AirbyteTypeToAvroSchema.kt airbyte-cdk/bulk/toolkits/legacy-task-load-avro/src/main/kotlin/io/airbyte/cdk/load/data/avro/AirbyteTypeToAvroSchema.kt — legacy or compatibility code
Respond to this finding

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

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

04.61

No release for 12 months while development continues

adequate

The last tag, v2.0.0, was cut 371 days before the survey; the typical gap between releases was 34 days, and 5365 commits landed in the last 90 days. Users run the last release, not this code.

Evidence
8b40981ae last tag v2.0.0
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
04.5

Effort is shifting from building to rewriting

adequate

Deleted lines per line added rose from 0.80 to 1.19 between the first and second halves of this history. Rework is normal and often healthy, but a rising ratio means an increasing share of the team's time is spent replacing code that already exists rather than building what does not. Whether that is deliberate repayment or churn is a question for the team. This was read from the most recent 50,000 commits (10 Mar 2022 to 22 Oct 2026) only; older history was not read.

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

Evidence
deletions-per-insertion first half 0.80, second half 1.19 (split 2024-07-01)
Respond to this finding

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

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

04.17

Python 3.9 is past end of life

adequate

The code is pinned to Python 3.9 (end of life 2025-10-31). None of these receives security fixes any more; the first stopped on 2025-10-31. Moving off an unsupported runtime is rarely a one-line change, so a buyer should ask whether the upgrade is planned and what it touches.

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

Evidence
airbyte-integrations/connectors/source-python-http-tutorial/Dockerfile airbyte-integrations/connectors/source-python-http-tutorial/Dockerfile — Python 3.9, end of life 2025-10-31
Respond to this finding

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

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

04.38

6 files still carry code deprecated more than two years ago

adequate

6 files were marked deprecated over two years ago and still are, the oldest since Mar 2024. A deprecation is a promise to remove. Ask what still depends on these, and whether removing them is scheduled.

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

Evidence
airbyte-cdk/java/airbyte-cdk/s3-destinations/src/main/kotlin/io/airbyte/cdk/integrations/destination/s3/parquet/ParquetSerializedBuffer.kt airbyte-cdk/java/airbyte-cdk/s3-destinations/src/main/kotlin/io/airbyte/cdk/integrations/destination/s3/parquet/ParquetSerializedBuffer.kt — deprecated since Mar 2024
airbyte-cdk/java/airbyte-cdk/core/src/main/kotlin/io/airbyte/cdk/integrations/destination/record_buffer/SerializableBuffer.kt airbyte-cdk/java/airbyte-cdk/core/src/main/kotlin/io/airbyte/cdk/integrations/destination/record_buffer/SerializableBuffer.kt — deprecated since Mar 2024
airbyte-cdk/java/airbyte-cdk/db-sources/src/main/kotlin/io/airbyte/cdk/integrations/source/relationaldb/state/LegacyStateManager.kt airbyte-cdk/java/airbyte-cdk/db-sources/src/main/kotlin/io/airbyte/cdk/integrations/source/relationaldb/state/LegacyStateManager.kt — deprecated since Mar 2024
airbyte-cdk/java/airbyte-cdk/db-destinations/src/main/kotlin/io/airbyte/cdk/integrations/destination/jdbc/AbstractJdbcDestination.kt airbyte-cdk/java/airbyte-cdk/db-destinations/src/main/kotlin/io/airbyte/cdk/integrations/destination/jdbc/AbstractJdbcDestination.kt — deprecated since Mar 2024
airbyte-integrations/connectors/destination-oracle/src/main/java/io/airbyte/integrations/destination/oracle/OracleNameTransformer.java airbyte-integrations/connectors/destination-oracle/src/main/java/io/airbyte/integrations/destination/oracle/OracleNameTransformer.java — deprecated since Apr 2024
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

7 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.

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

117 locked dependencies have published vulnerabilities, 86 high or critical in what ships

adequate worth checking first

117 of 2,984 locked dependencies match 249 published advisories in OSV, 122 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 airbyte-integrations/connectors/source-sftp-bulk/poetry.lock and the 2 other files it cites settles it. If it holds when someone checks it, this finding is significant.

Evidence
airbyte-integrations/connectors/source-sftp-bulk/poetry.lock airbyte-integrations/connectors/source-sftp-bulk/poetry.lock — pillow 12.0.0: GHSA-332p-7hrc-92wf (critical), fixed in 13.0.0
airbyte-integrations/connectors/source-gcs/poetry.lock airbyte-integrations/connectors/source-gcs/poetry.lock — pillow 12.3.0: GHSA-332p-7hrc-92wf (critical), fixed in 13.0.0
airbyte-integrations/connectors/source-azure-blob-storage/poetry.lock airbyte-integrations/connectors/source-azure-blob-storage/poetry.lock — unstructured 0.10.27: GHSA-4mvj-m6j5-pmf7 (critical), fixed in 0.24.0
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
05.27

The build runs third-party code it does not pin

adequate

5 third-party CI actions are referenced by a tag or branch rather than a commit, so they run whatever that tag points to on the day. 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
.github/workflows/ai-breaking-change-review-command.yml .github/workflows/ai-breaking-change-review-command.yml:90 — action pinned by tag
.github/workflows/ai-canary-prerelease-command.yml .github/workflows/ai-canary-prerelease-command.yml:51 — action pinned by tag
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

48 outbound calls can wait forever

adequate

48 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
airbyte-ci/connectors/ci_credentials/ci_credentials/google_api.py airbyte-ci/connectors/ci_credentials/ci_credentials/google_api.py:35 — outbound call without a timeout
airbyte-ci/connectors/ci_credentials/ci_credentials/google_api.py airbyte-ci/connectors/ci_credentials/ci_credentials/google_api.py:45 — outbound call without a timeout
airbyte-ci/connectors/ci_credentials/ci_credentials/google_api.py airbyte-ci/connectors/ci_credentials/ci_credentials/google_api.py:83 — 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.

05.20

2 SQL statements built from strings

adequate

2 places in product code build SQL by formatting or joining strings rather than passing parameters. In each, what the code shows going in is a table or column name, a constant, or something the line does not show, not a request's value. Ask whether any value reaches these strings, rather than a parameter.

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

Evidence
airbyte-integrations/connectors/destination-databend/destination_databend/writer.py airbyte-integrations/connectors/destination-databend/destination_databend/writer.py:117 — SQL built from a string
airbyte-integrations/connectors/destination-firebolt/destination_firebolt/writer.py airbyte-integrations/connectors/destination-firebolt/destination_firebolt/writer.py:211 — SQL built from a string
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

3 deserialisers that can run code

adequate

3 places read data with a deserialiser that executes what it reads (`yaml.load` without a safe loader, pickle). 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
airbyte-integrations/bases/base-normalization/normalization/transform_catalog/transform.py airbyte-integrations/bases/base-normalization/normalization/transform_catalog/transform.py:76 — code-executing deserialiser
airbyte-integrations/bases/base-normalization/normalization/transform_config/transform.py airbyte-integrations/bases/base-normalization/normalization/transform_config/transform.py:50 — code-executing deserialiser
airbyte-integrations/connectors/source-s3/source_s3/utils.py airbyte-integrations/connectors/source-s3/source_s3/utils.py:54 — 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.

05.66

The licence is Elastic-2.0: source available, not open source

adequate

LICENSE grants Elastic-2.0: source available, not open source; offering it as a managed service is not allowed. 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 LICENSE:1 — 44 lines, Elastic-2.0
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.

05.60

Relicensed: MIT → Elastic-2.0 (2021-09-27)

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
87e9c99ae LICENSE.md — MIT from 2020-08-17
f25542a14 LICENSE — Elastic-2.0 from 2021-09-27
Respond to this finding

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

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

05.65

2 advisories against this project in the last 24 months, 2 high or critical

adequate

The newest was published on 2026-10-17. A project that publishes advisories is telling its users about its fixes, and the count and pace say how much security work it carries. Whether 2 of them are fixed in the code you ship could not be told from this history: its version is only known to be at least 2.0.0. Answer lives in: the release you run, set against each fixed version. The record is incomplete: NVD: 2 records name airbyte with nothing tying them to this repository (CVE-2026-92203, CVE-2026-92204).

A note that does not affect this rating: it describes the project's advisory record, and no advisory in it is known to affect the surveyed commit.

Evidence
GHSA-g35w-6r6v-h4r7 2026-10-17: GHSA-g35w-6r6v-h4r7 (critical), fixed in 2.2.0: Remote code execution via Connector Builder custom components when unsafe code is disabled
CVE-2026-80049 2026-08-25: CVE-2026-80049 (high): Airbyte Platform resolves the workspace used for its authorization decision from a field the caller supplies. AuthorizationServerHandler copies recognised ident
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 ↑
06.2

No structured logging library is in use

adequate

Nothing references a structured logging library. Logs that are written to be read by a person are not searchable by a machine, which means incident response here is proportional to how well someone remembers the codebase rather than to what the tooling can find.

Evidence
logging-scan searched 4,855 files for 10 structured logging libraries; 0 matched
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

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 No architecture or design document is in the tree, across 9,872 product files. Where does the design live, and who holds it? Answer lives in: The team01.38
  2. Is the architecture right for the next three years of the product? Answer lives in: Your architects, with the product roadmap01.39
  3. Were the home-grown components reasonable choices when they were made, and are they now? Answer lives in: The team's reasoning at the time01.40

Engineering Process & SDLC Maturity

02 · high coverage
  1. Is review real or a rubber stamp? Comment depth and time to approve need the pull request history. Answer lives in: The code host's pull request data02.32
  2. Is delivery planned and measured, or heroic? Answer lives in: The issue tracker: backlog, sprint history, estimate accuracy02.38
  3. How are incidents run, reviewed and learned from? Answer lives in: Tickets, chat and postmortems02.37

Organization & Key-Person Risk

03 · partial coverage
  1. measured One contributor authored a quarter or more of the commits in this history. Is that person part of the transaction, and for how long after it? Answer lives in: The deal terms03.29
  2. Who mentors whom, and would that survive a departure? Answer lives in: The team; review history only suggests candidates03.28
  3. Can the team grow, and who stands behind the top three contributors? Answer lives in: Recruiting data and the org chart03.30
  4. Is the seniority mix sound, and will pay survive your salary bands? Answer lives in: HR data03.31
  5. Is the pace sustainable? Commit times cannot say: git keeps no reliable local time. Answer lives in: Interviews and on-call history03.14
  6. Does the team want to stay after close? Answer lives in: Interviews03.32
  7. How are decisions made and disagreements resolved? Answer lives in: Time with the team03.33

Product & Engineering Maturity

04 · minimal coverage
  1. measured 1,705 commits landed in the last year, against 16,249 the year before (-90%). Is that maintenance mode, a pivot, or fewer people working on it? The count looks the same for all three. Answer lives in: The team04.11
  2. 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
  3. 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
  4. 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
  5. Does leadership know about the debt, and is time budgeted to repay it? Answer lives in: Budget and roadmap decisions04.31
  6. 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 Kotlin codebase, with Python alongside (30% of source files). Does your engineering organisation already run Kotlin in production, or would this be the first? 07.1
  2. The bulk of this system sits in airbyte-integrations/, airbyte-cdk/, docusaurus/. Which of your existing systems would each of those have to absorb or replace? 07.10
  3. 57% of lines added in the last 12 months (17% of lines added in the most recent 50,000 commits (10 Mar 2022 to 22 Oct 2026)) came through AI-declared commits. Does your organisation have a policy on inheriting and maintaining that code, and does your engineering team's tooling match how it was produced? 07.9
  4. The repository carries deployment configuration (airbyte-cdk/bulk/core/base/src/testFixtures/resources/bastion/Dockerfile and 34 more). Does that match your deployment and on-call model, or does it need rehosting first? 07.2
  5. 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?
  6. Which of these systems duplicate yours, and which get retired? Answer lives in: Your architecture07.11
  7. What will integration cost, and in what order? Answer lives in: The engagement07.12
  8. Where does the team land in your organisation, and who reports to whom? Answer lives in: Your org design07.13
  9. Are there earn-outs, retention packages or contractor IP to assign? Answer lives in: Deal terms07.14
  10. 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 — 81 signals that ran and did not fire

Appendix: rejection log — 81 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 (10 Mar 2022 to 22 Oct 2026)files 45,624 · top5 share 0.016 · history read the most recent 50,000 commits (10 Mar 2022 to 22 Oct 2026)
04.debt_markers debt markers are sparsemarkers 341 · per kloc 0.34 · lines read 1,003,040
04.test_growth test effort kept pace with code written, in the most recent 50,000 commits (10 Mar 2022 to 22 Oct 2026)history read the most recent 50,000 commits (10 Mar 2022 to 22 Oct 2026) · late test per code 1.706 · early test per code 0.771
04.fixes_with_tests fixes usually come with a testfixes 1,191 · share 0.371 · with tests 442
04.fix_share_trend fixing is not crowding out building
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 19
06.healthcheck_presence a health or readiness check is defined
06.correlation_ids a request can be followed through the logstracing False · request id sites 2
06.usage_reporting_default the product's code names no reporting hostsettings on 0 · settings off 4
06.alert_rules alert rules are defined as codealert files 3
06.deployed_image_floats every deployed image names a versionimages 11 · floating 0
06.environment_branching environment differences live in configurationsites 0
06.release_markers releases are markedtags last year 0 · release commits 7 · changelog commits 127
06.migrate_on_start migrations do not run at container start
03.critical_path_ownership more than one person changes the critical pathsauthors 322
03.bus_factor_trend the team has not narrowed to one person
02.merge_discipline a meaningful share of recent change carries evidence of reviewmerges 0 · window last 24 months · with tracked 17
02.ci_presence CI configuration is present in the working treecount 90
02.test_presence tests are present in a normal proportion to sourcetests 3,539 · source 6,045 · test ratio 0.585
02.conventional_commits commit subjects generally carry content, in the most recent 50,000 commits (10 Mar 2022 to 22 Oct 2026)sampled 49,992 · history read the most recent 50,000 commits (10 Mar 2022 to 22 Oct 2026) · low content share 0.0
02.branch_protection_hints process scaffolding is present in the repository
02.ci_runs_tests CI invokes a test runnerconfigs 90 · with tests 7
02.skipped_tests few tests are switched offfocused 0 · skipped 0 · test files 7,136
02.ci_test_gating no test run in CI is written so that it cannot failconfigs 90
02.revert_share change is rarely undoneshare 0.001 · reverts 16 · recent commits 17,989
02.dependency_update_cadence dependencies move with the codelockfiles 179 · commits since 6 · 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 30 · ci configs 90 · product files 2,506
02.commit_size changes arrive in reviewable sizesshare 0.014 · commits 17,333 · over 2000 lines 234
01.burst_import the largest burst was data and assets (100% of it), which explains the rate: translations arrive from a vendor in bulk, dependencies and generated code are committed whole, a merged pull request is dated when it merged, not when it was written, a branch merged by a merge commit was reviewed as one piece, and an export or mirror tool dates history when it replays it, in the most recent 50,000 commits (10 Mar 2022 to 22 Oct 2026)history read the most recent 50,000 commits (10 Mar 2022 to 22 Oct 2026) · largest commits b6deeb3..5cb27b1 · bursts explained 24
01.message_uniformity commit subjects vary in wording and length, in the most recent 50,000 commits (10 Mar 2022 to 22 Oct 2026)history read the most recent 50,000 commits (10 Mar 2022 to 22 Oct 2026) · length stdev 14.07 · repeat share 0.005
01.swallowed_errors errors are rarely thrown awayloc 1,007,689 · files 17 · per kloc 0.03
01.build_reproducibility every base image names a versionfloating 0 · from lines 7
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 4,855
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.shell_from_strings product code does not build shell commands from stringssites 1
05.tls_verification_off no TLS verification is switched off in product codefiles 0 · sites 0 · pinned instead 0
05.privileged_workloads no workload runs privileged or in the host's namespacessites 0 · behind a setting or built here 0
05.source_maps_shipped production builds do not publish source mapssites 0
05.signing_material no signing keystore or profile is committedfiles 0
05.dataset_provenance little data is committeddata files 0 · licence or card files 0
05.license_copyleft_inherited every licence found in vendored code is permissive or weak-copyleftvendored paths 10
05.license_vendored_unlicensed all 2 vendored components state their terms, in a licence file, their own headers or a notices filecomponents 2 · stated in headers or notices 2
05.committed_native_libraries no widely used compiled library is committed to the productlibraries 0
04.dependency_churn few dependencies were added and dropped within 60 daysdependencies seen 375 · added in two years 47 · removed within 60 days 2
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.release_branch the newest release was cut from the branch surveyed, in the most recent 50,000 commits (10 Mar 2022 to 22 Oct 2026)elsewhere 0 · on branch 246 · history read the most recent 50,000 commits (10 Mar 2022 to 22 Oct 2026)
03.single_maintainer no file says one person maintains itstatements 0

Could not conclude, or did not apply — 25

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

SignalWhy
04.schema_churnno schema migrations to read
06.telemetry_depthnone at all is 06.1
06.print_logginga frontend: console output is the browser's, not the server's
06.probes_identicalno Kubernetes probes
06.single_replicano Kubernetes deployments
06.feature_flagsno feature-flag service; flags may live elsewhere
03.active_contributorsnot assessed: this check needs the whole history, and only the most recent 50,000 commits (10 Mar 2022 to 22 Oct 2026) were read
03.knowledge_silosnot assessed: this check needs the whole history, and only the most recent 50,000 commits (10 Mar 2022 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 (10 Mar 2022 to 22 Oct 2026) were read
03.contributor_attritionnot assessed: this check needs the whole history, and only the most recent 50,000 commits (10 Mar 2022 to 22 Oct 2026) were read
02.release_cadencenot assessed: this check needs the whole history, and only the most recent 50,000 commits (10 Mar 2022 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 (10 Mar 2022 to 22 Oct 2026) were read
01.revision_depthnot assessed: this check needs the whole history, and only the most recent 50,000 commits (10 Mar 2022 to 22 Oct 2026) were read
01.notebook_outputstoo few notebooks
05.migration_reversibilitytoo few migrations to judge
05.resource_limitsno Kubernetes workload manifests
05.public_env_secretnot assessed for Kotlin or Python, the languages the product is written in: this check's patterns read other languages only
05.unsafe_htmlnot assessed for Kotlin or Python, the languages the product is written in: this check's patterns read other languages only
05.cleartext_trafficnot a mobile app
05.license_manifest_conflictno packaging manifest states a licence
04.flags_accumulatingfew or no feature flags in the history
04.api_versions_coexistingone API version is served, or none
05.project_advisoriesrecord incomplete: no advisory found in the sources that answered; OSV PyPI airbyte-destination-pgvector (an empty record for a package published here) did not; NVD: 2 records name airbyte with nothing tying them to this repository (CVE-2026-92203, CVE-2026-92204)
05.project_exploitedno affecting advisory is on CISA's Known Exploited list
BOREHOLE READING NOT A CERTIFICATION AFY2-QRWP-BK8M 2026-10-22 · 206C725 BOREHOLE.DEV/VERIFY

Anyone can check this report against the authoritative record — click the stamp, or enter AFY2-QRWP-BK8M 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.

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Where this scan ran

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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: 928.0authenticated: False
131.2s cloned the repository to a temporary directory depth: full
205.6s read the git history commits: 50000tracked files: 19368
646.0s ran the deterministic checks blame pass: Falseread working tree: False
646.0s recorded where this scan ran attested: Falseenvironment: cloud-run
820.6s kept the facts, never the source, for re-reading under new checks
820.6s deleting the working copy

Total 820.6s ·source content sent off this machine: none · calls to a language model: 0 · the clone was deleted when the survey ended

An automated reading of a repository's code and its history up to one commit, with public advisory records. It may be wrong, it is not legal, financial, investment or security advice, and it does not replace diligence by a qualified person. It is provided for information: nobody may rely on it (Borehole's terms, section 3).

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