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CI: a Lens's verdict and the secret scan's rules run from the base - #145
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"Run each deterministic Lens from the base's inputs" (issue 137), in the scope the Maintainer shrank it to on 2026-10-17. - ci.yml checks out the base under base/ (pull_request base SHA, the merge group's base_sha, or the pushed commit on a push) with the same pinned actions/checkout and persist-credentials: false. gitleaks reads --config base/.gitleaks.toml and --gitleaks-ignore-path base/.gitleaksignore, and the head's .gitleaksignore is deleted first: gitleaks 8.30.1 also reads <source>/.gitleaksignore whatever the flag says. EXEMPT gets the new hash. - verify.yml's verify job checks out only the base and runs the base's tools/needs_passed.py. The example and the standard stay equal. - check_workflows: a Lens job that judges its needs has one checkout, of the base and nothing else; scan_problems holds ci.yml to reading its rules from the base. Two tests with counter-cases, nine mutants. - Decision 0023 records both, why no lens_inputs entry comes off the list, and ci.yml's further departure from the org's text. Design: P-37 for what merge_group.base_sha is for an entry behind another. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A fix round on "Run each deterministic Lens from the base's inputs" (issue 137), from its review and security pass. - ci.yml: gitleaks gets --log-opts="--full-history --all --diff-filter=tuxdb --text", its own 8.30.1 defaults plus --text, so a head's .gitattributes marking a file -diff cannot hide it as binary; and --ignore-gitleaks-allow, so an inline gitleaks:allow in head content passes over nothing. A local canary on gitleaks 8.30.1: the -diff file is missed with the default log options and caught with --text; the allowed line is caught only with the flag. scan_problems and the EXEMPT hash hold both. - scan_problems strips quotes from a word, so bash -c "gitleaks ..." is read. - _judging: a workflow with a judging job runs on pull_request and merge_group alone. On any other event ref: comes out empty and checkout takes the head without a word; the trigger is refused in the text, before any run, rather than given a fallback that fails at run time. - Decision 0023 says what the base read buys whatever rules the base's configuration holds, and records the two flags and the trigger rule. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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| Check name | Status | Explanation | Resolution |
|---|---|---|---|
| Docstring Coverage |  |
Docstring coverage is 42.86% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 14 functions across 3 files. (1 skipped: … | Write docstrings for the functions missing them to satisfy the coverage threshold. |
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Check name Status Explanation Linked Issues check Issue #137has three active coding requirements..github/workflows/ci.ymlchecks out the selected base intobase/and passesbase/.gitleaks.tomlandbase/.gitleaksignoreto gitleaks. It remove…Out of Scope Changes check The changes stay within issue #137. Workflow changes implement base-controlled secret-scan rules and the base-controlledverifyverdict. Changes totools/check_workflows.py,tests/test_tools.py,…Description Check Check skipped - CodeRabbit’s high-level summary is enabled. Title check The title clearly summarizes the main changes: Lens verdict logic and secret-scan rules now run from the base revision. Full details: Linked Issues check
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Explanation
Issue
#137has three active coding requirements..github/workflows/ci.ymlchecks out the selected base intobase/and passesbase/.gitleaks.tomlandbase/.gitleaksignoreto gitleaks. It removes the head.gitleaksignoreand disables inlinegitleaks:allow..github/workflows/verify.ymlgives theverifyjob one base checkout and runspython3 -m tools.needs_passed. The workflow usespull_requestandmerge_group, and Decision 0023 records both changes, keeps alllens_inputs, and covers the merge-queue base. The workflow checker and tests enforce these structures.
Full details: Out of Scope Changes check
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Explanation
The changes stay within issue
#137. Workflow changes implement base-controlled secret-scan rules and the base-controlledverifyverdict. Changes totools/check_workflows.py,tests/test_tools.py, andtools/mutants.pyvalidate and protect these requirements. Decision 0023, the architecture document, the workflow standard, and the example workflow document the same behavior and merge-queue scope. No unrelated implementation change is shown.
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Full details: Docstring Coverage
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Explanation
Docstring coverage is 42.86% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 14 functions across 3 files. (1 skipped: 1 unsupported.)
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Write docstrings for the functions missing them to satisfy the coverage threshold.
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Review comments at @tools/check_workflows.py:
- Around line 279-285: Update scan_problems to reject a step-level `if: false`
when the step contains a detected `gitleaks` scan, so refreshing `EXEMPT` cannot
let a skipped scan pass. Add a counter-example test for this conditional scan;
leave the separate job-level condition and `continue-on-error` checks unchanged.
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📒 Files selected for processing: 9
.github/workflows/ci.yml.github/workflows/verify.ymldocs/architecture/software-factory-design.mddocs/decisions/0023-a-lenss-verdict-and-the-secret-scans-rules-run-from-the-base.mddocs/standards/workflows.mdexamples/workflows/verify.ymltests/test_tools.pytools/check_workflows.pytools/mutants.py
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From the AGY review of "CI: the secret scan's rules and verify's verdict are read from the base" (pull request 145). - scan_problems held only the two lines around each gitleaks call, and the checkouts only in their order to each other: a `cp .gitleaks.toml base/` before the rm, or the base checkout moved after the scan, passed. It now holds the job whole: one job of four steps, in order, the head's checkout, the base's, an install that names no base and runs no gitleaks, and the scan, whose whole block is SCAN_RUN. No workflow-level or job-level env, defaults or container, no key on the scan step but name and run, and the install given only GITLEAKS_VERSION and GITLEAKS_CHECKSUM, so neither GIT_DIR nor a working-directory can move what the scan reads. - Tests and mutants for the two branches that had none: a single-line run: read as a scan, and a judging workflow whose on: is a scalar. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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…each CI's mutation shards on pull request 145 reported four mutants as SURVIVED that a local run had called killed: the reading of a gitleaks call by an option, by a path, inside quotes, and the comparison of every call found with SCAN_RUN. Run alone on an export, with gitleaks on PATH or off it, each survives. Once the scan step's whole block had to equal SCAN_RUN and the job had to be exactly four steps, that reading could change no verdict: a call anywhere else is a fifth step, a changed block or an install line, all refused already. The local kills were another test failing under a load average near 30, which the harness counts as a kill. - scan_problems: the hunt for gitleaks calls (SUBCOMMANDS, QUOTES, _runs_gitleaks) is gone. The rule is the job's shape and its last step's whole block equal to SCAN_RUN, with one message. - Its mutants go with it; the comparison has two, false and the last line alone. A single-line run: is now held where it matters, an install on one line that names base/. - Decision 0023's Boundary says the same. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Closes #137, in the scope the Maintainer shrank it to on 2026-10-17. A change can no longer loosen the Lens that judges it in two places: the secret scan's rules and allowlist, and
verify's verdict. In this repo no Lens input can come off the list, and decision 0023 says why.What changes
.github/workflows/ci.yml):actions/checkoutandpersist-credentials: false, puts the base inbase/. That ispull_request.base.sha, ormerge_group.base_sha, orgithub.shaon a push to main..gitleaksignore, then scans with--config base/.gitleaks.toml --gitleaks-ignore-path base/.gitleaksignore. A change cannot widen the allowlist it needs. A false positive takes two merges, a cost the Maintainer accepted.--log-opts="--full-history --all --diff-filter=tuxdb --text", which is gitleaks' default plus--text, so a head.gitattributesmarking a file-diffcannot hide it.--ignore-gitleaks-allow, so an inlinegitleaks:allowin the head is not obeyed.scan_problems()incheck_workflowsholds all of this, andEXEMPThas the new hash.verify(.github/workflows/verify.yml, its example and the standard): the judging job's only checkout is the base, so it runs the base'stools/needs_passed.py.check_workflowsrequires one base checkout withpersist-credentials: false. A workflow with a judging job may run onpull_requestandmerge_grouponly, so the base ref can never come out empty.lens_inputsentry comes off the list: here only Dependabot's pin updates use the exemption, and they touch the protected.github/. And it recordsci.yml's further departure from the org's text.merge_group.base_shais in a live event. GitHub documents it as the group's parent commit, and the queue history fits that.Verified:
git archiveexport at b695e37, with gitleaks off PATH as in CI:make verifypasses andpython3 -m tools.mutantskills 404 of 404.check_decisionsis clean.ci.ymlscan, run locally against a full clone with the base underbase/, scans 196 commits and finds no leaks. With the base's ignore file switched off, it reports exactly the four known fingerprints.Reviewed by: a fresh-context Claude review and a security pass. They found that the scan had no rules at all, fixed first in #144. Also fixed: the
.gitattributesandgitleaks:allowgaps, an empty base ref, and a quotedbash -ccall.AGY (Gemini 4 Argon) on 2c7d4ae: two majors and a minor, all real and fixed in 2dda6c5.
scan_problemshad read only the lines around the gitleaks call, and only the order of the two checkouts. It now holds the scan job to exactly four steps in order: the head's checkout, the base's checkout, the install, the scan. The scan step must beSCAN_RUNexactly, with noenv,defaults,containerorworking-directory. The two untested branches now have tests and mutants. CodeRabbit's step-levelif: falseis refused by the same rule.Muse Wonder (
muse-wonder-1.0) on 2c7d4ae: its major, a shell function namedgitleaksinside the scan step, is refused at 2dda6c5. Two gaps are left, and both are held today byci.yml's hash and the model review: a stub binary written by the install step, and a downgraded checkout pin. Both are filed as #146.CI's mutation shards on 2dda6c5: four mutants survived. They targeted code that read gitleaks calls by option, path or quotes, which became dead once the scan step had to equal
SCAN_RUN. The code and its mutants are removed in b695e37. They had looked killed locally only because an unrelated test failed under load, which is filed as #147.Follow-up: the judging job's
env:could carryBASH_ENVorPYTHONPATH. The workflow file is the head's own, and.github/changes need the model review (decision 0020).🤖 Generated with Claude Code
Summary by CodeRabbit
gitleaks:allowannotations are ignored.