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fix(ci): codeql-action v4.38.1 -> v4.38.0 SHA pin + dependabot hold (estate-wide startup_failure) - #145

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hyperpolymath merged 1 commit into
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fix/codeql-4381-rollback
Sep 22, 2026
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hyperpolymath merged 1 commit into
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fix/codeql-4381-rollback

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Summary

Estate-wide incident: github/codeql-action v4.38.1 fails GitHub workflow startup on every repo that took it — CodeQL/Hypatia runs die with startup_failure, zero jobs dispatched, no error text in any API surface. The evidence chain (full detail: nexia-list#100):

repo ref status
nexia-list @v4.38.1 tag (via dependabot #94) 🔴 startup_failure → fixed by rollback #100 (merged)
hypatia @1c5b675 (4.38.1 SHA) 🔴
vexometer @v4.38.1 🔴 (since Sep-21)
rsr-template-repo @1c5b675 🔴
affinescript / boj-server / deed-ecosystem ≤ v4.38.0 ✅ green

The v4.38.1 tag exists (peels to 1c5b675) and byte-identical workflow content runs under a fresh path — so the failure is the version value itself at GitHub's start-validation layer, not content, permissions (probes with security-events start fine), or the default-setup conflict.

Changes here

  • codeql-reusable.yml, hypatia-scan-reusable.yml: codeql-action/* re-pinned 1c5b675 (v4.38.1) → b96794f0 (v4.38.0 commit; wrong # v3 comments corrected to # v4.38.0).
  • actions.lock: re-keyed to the v4.38.0 SHA entries (dependabot bumped the reusable pins without regenerating the lock).
  • dependabot.yml: full hold on github/codeql-action — scoped versions: ignores do NOT hold for this bot path (nexia-list#101 re-raised the bump in SHA form within an hour, copying the inline warning comment verbatim while swapping the SHA).

Follow-ups

Consumer rollbacks shipped in the same batch: nexia-list (merged ✅), hypatia, vexometer, rsr-template-repo, metadatastician/burble (each with the same dependabot hold). Reconsider the hold when upstream clears v4.38.1 or a newer release verifies green on one canary repo.

v4.38.1 (tag AND commit SHA 1c5b675) fails GitHub workflow-startup
validation estate-wide: codeql/hypatia runs die with startup_failure,
zero jobs, no API error text. Full investigation: nexia-list#100.
Rollback to the v4.38.0 commit b96794f015dfd88f77b49b1c93e0fa7110f94c63
(green on deed-ecosystem; satisfies repo SHA-pin policy). actions.lock
re-keyed where present; dependabot held unconditionally (versions-scoped
ignores were bypassed in SHA form - nexia-list#101).

Canonical fix: hyperpolymath/standards#973.
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coderabbitai Bot commented Sep 22, 2026 •

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ℹ️ Recent review info
⚙️ Run configuration

Configuration used: Organization UI

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Reviewing files that changed from the base of the PR and between e08083c and b444253.

📒 Files selected for processing (2)
  • .github/dependabot.yml
  • .github/workflows/codeql.yml

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🔇 Additional comments (2)
.github/workflows/codeql.yml (1)

43-43: LGTM!

Also applies to: 49-49

.github/dependabot.yml (1)

16-22: LGTM!


📝 Summary

Summary by CodeRabbit

  • Chores

    • Updated the automated code scanning workflow to use a fixed, validated version.
    • Prevented automatic updates from moving the scanning workflow to an affected version.
  • Impact

    • No user-facing features or application behaviour have changed.

Walkthrough

The CodeQL workflow now uses the v4.38.0 commit. Dependabot no longer proposes updates for github/codeql-action. The configuration records that v4.38.1 fails workflow-startup validation estate-wide.

Changes

CodeQL version hold

Layer / File(s) Summary
Pin CodeQL action and update policy
.github/workflows/codeql.yml, .github/dependabot.yml
The init and analyze steps use the v4.38.0 commit. Dependabot ignores updates for github/codeql-action.

Priority: ⬆️ High

Estimated code review effort: 1 (Trivial) | ~5 minutes

Change: Bug fix · Severity of issue fixed: High

Suggested reviewers: metadatastician

Merge Risk: ⚪ Minimal · up to b4442

The workflow remains on CodeQL v4.38.0 and Dependabot is held from reintroducing the reported failing version, so the change is ready to merge.

🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
Check name Status Explanation
Title check ✅ Passed The title accurately summarises the rollback to the v4.38.0 SHA pin and the Dependabot hold for the estate-wide startup failure.
Description check ✅ Passed The description directly explains the CodeQL action rollback, the Dependabot hold, the startup failure, and the related investigation.
Docstring Coverage ✅ Passed No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check ✅ Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.

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@hyperpolymath
hyperpolymath merged commit 9f95431 into main Sep 22, 2026
23 of 25 checks passed
@hyperpolymath
hyperpolymath deleted the fix/codeql-4381-rollback branch September 22, 2026 12:01
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