feat(lock): regenerate actions.lock on Dependabot PRs estate-wide - #1123
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Dependabot bumps workflow `uses:` refs but never actions.lock, so its PRs land red on "Governance / Actions lockfile verify" and every later PR in the repo inherits that red. scripts/regen-dependabot-locks.sh repairs the lock on the Dependabot branch before it can merge: - runs the estate repair order (gh actions-lock v0.1.6 → relock-sha-keys → complete-job-refs → close-lock → prune-stale) on a clone of the PR head; - restores every file except actions.lock (rewrite mode de-pins SHAs); - commits only if actions.lock is the sole change, holds no `$/` ref, every edge resolved, and update-actions-lock.sh --verify-local passes; - commits via createCommitOnBranch with expectedHeadOid as a GitHub App installation (Verified; refuses a moved branch). DRY_RUN=1 reports only. .github/workflows/dependabot-lock-regen.yml runs it every 30 min and on dispatch, using the existing non-bypass applier App slot (vars.APP_ID / secrets.APP_PRIVATE_KEY, owner ruling STD-R-3). With no App it warns and exits 0, naming what it did not examine. Test: scripts/tests/regen-dependabot-locks-test.sh, 27 cases; five mutants (no `$/` guard, restore, dirty check, composite refusal, or non-404 reporting) each turn red. Repos with .github/actions/ composites are refused (composite-unsupported): the chain drops their edges and the verifier accepts it (standards#1122). Non-404 API failures print api-error. Dry runs on wsl-compute-governor-dispatcher#22, proof-of-work#135 and sanctify-php#106 produced verifier-clean locks. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_016L7GFo3yGQ2vK9YgKL2wsP
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📝 SummarySummary by CodeRabbit
WalkthroughAdds a scheduled and manually dispatched workflow that runs a script to select eligible Dependabot pull requests, regenerate and verify workflow lockfiles, and commit verified changes. The workflow supports repository filtering and dry-run mode. ChangesDependabot lock regeneration
Priority: ➖ Normal Estimated code review effort: 3 (Moderate) | ~25 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant DependabotLockRegenWorkflow
participant regen_dependabot_locks
participant GitHubCLI
participant RepairTools
participant GitHubGraphQL
DependabotLockRegenWorkflow->>regen_dependabot_locks: pass owner tokens and run options
regen_dependabot_locks->>GitHubCLI: list installation repositories and pull requests
regen_dependabot_locks->>RepairTools: regenerate and verify actions.lock
regen_dependabot_locks->>GitHubGraphQL: commit verified lock with expected branch-head OID
Suggested reviewers: Merge Risk: 🔵 Low · up to The automation retains its lock-only verification and branch-head safeguards, but credentials remain in temporary checkout configuration and one owner's enumeration failure skips later owners. These bounded issues merit correction or explicit owner acceptance. Security Architecture ReviewSecurity architecture risk: 🟡 Moderate · up to The automation has strong safeguards against unintended commits, but it stores an installation credential in a temporary clone and exposes credentials to repair processes. The potential impact spans the repositories accessible to the installations. Actual production permissions remain unverified, and credential-bearing temporary directories are not guaranteed to be removed after interruption. Retained concerns
Security review detailsSecurity Blast Radius
Security Findings and Attack Paths
Trust Boundaries and Controls
Resilience and Maintainability Implications
Hardening Proposals
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches📝 Generate docstrings
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- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @scripts/regen-dependabot-locks.sh:
- Around line 169-171: Update the installation-repository enumeration failure
path in the owner-processing flow: report the owner whose enumeration failed,
record a failure flag, and continue to the next owner instead of returning
immediately. Use the failure flag to return non-zero only after all owners have
been processed.
- Around line 134-135: Update the git clone invocation in the lock-regeneration
flow to use an HTTP Authorization header supplied through Git configuration
environment variables, and keep the repository URL free of the installation
token so it is not persisted in the checkout configuration or exposed in process
arguments.
After applying the fix, consider running `coderabbit review --agent` for local
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ℹ️ Review info
⚙️ Run configuration
Configuration used: Organization UI
Review profile: ASSERTIVE
Plan: Advanced
Run ID: eb9ffc95-d081-47d5-a754-e60607eca9c1
⛔ Files ignored due to path filters (1)
.github/workflows/actions.lockis excluded by!**/*.lock
📒 Files selected for processing (3)
.github/workflows/dependabot-lock-regen.ymlscripts/regen-dependabot-locks.shscripts/tests/regen-dependabot-locks-test.sh
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⏰ Context from checks skipped due to timeout. (5)
- GitHub Check: governance / Validate Hypatia Baseline
- GitHub Check: semgrep-cloud-platform/scan
- GitHub Check: scan / Hypatia Neurosymbolic Analysis
- GitHub Check: Repo self-tests
- GitHub Check: semgrep-cloud-platform/scan
🧰 Additional context used
🪛 ast-grep (0.45.3)
scripts/tests/regen-dependabot-locks-test.sh
[warning] 160-160: A credential-bearing variable (e.g. PASSWORD, PASSWD, SECRET, TOKEN, API_KEY) is assigned a hardcoded string literal. Secrets committed to a script are exposed in source control, process listings, and shell history, and cannot be rotated without a code change. Read the value from a secrets manager or an injected environment variable at runtime instead (e.g. PASSWORD="${DB_PASSWORD:?must be set}"), and never commit the literal.
Context: REGEN_TOKENS='hyperpolymath= metadatastician='
Note: [CWE-798] Use of Hard-coded Credentials.
(hardcoded-password-assignment-bash)
🪛 zizmor (1.30.1)
.github/workflows/dependabot-lock-regen.yml
[info] 39-39: workflow or action definition without a name (anonymous-definition): this job
(anonymous-definition)
[error] 60-60: dangerous use of GitHub App tokens (github-app): token granted access to all repositories for this owner's app installation
(github-app)
[error] 55-55: dangerous use of GitHub App tokens (github-app): app token inherits blanket installation permissions
(github-app)
[error] 69-69: dangerous use of GitHub App tokens (github-app): token granted access to all repositories for this owner's app installation
(github-app)
[error] 64-64: dangerous use of GitHub App tokens (github-app): app token inherits blanket installation permissions
(github-app)
🔇 Additional comments (2)
scripts/tests/regen-dependabot-locks-test.sh (1)
161-161: LGTM!.github/workflows/dependabot-lock-regen.yml (1)
1-94: LGTM!
CodeRabbit on #1123: the installation token was embedded in the clone URL (argv + remote.origin.url, CWE-522); it now travels as an http.extraHeader through GIT_CONFIG_* env (verified: a real token fetches, a bogus one is rejected with 128, neither lands in .git/config). One owner's failed enumeration no longer aborts the other owner's sweep: it is named NOT examined and the run exits non-zero at the end. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_016L7GFo3yGQ2vK9YgKL2wsP
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Why
Dependabot bumps workflow
uses:refs but neveractions.lock. Its PRs go red on Governance / Actions lockfile verify, merge anyway (the check is not required), andmaindrifts. Every later PR in that repo then inherits a red it did not cause. Owner decision: auto-regenerate the lock on the Dependabot PR.What
scripts/regen-dependabot-locks.shhandles open, same-repo, non-draft Dependabot PRs that touch.github/workflows/, in repos that carryactions.lock. It:gh actions-lockv0.1.6 → relock-sha-keys → complete-job-refs → close-lock → prune-stale) on a clone of the PR head;$/ref, has every edge resolved, andupdate-actions-lock.sh --verify-localpasses;createCommitOnBranchwithexpectedHeadOidas an App installation, so the commit is Verified and a moved branch is refused..github/workflows/dependabot-lock-regen.ymlruns every 30 min and onworkflow_dispatch(inputsrepo,dry-run). Credential: the existing non-bypass applier App slotvars.APP_ID/secrets.APP_PRIVATE_KEY(STD-R-3, not OikosBot). Until the App exists the run warns, exits 0, and names each owner it did not examine.actions.lock: entry for the new workflow. Hand-written, because the repair chain cannot produce a valid lock for standards itself (Lock repair chain drops composite-action edges, and --verify-local accepts the result #1122).Known limits (deliberate refusals, not silent gaps)
composite-unsupported: repos with.github/actions/*. The chain drops composite-action edges and--verify-localstill accepts that (planted negative on standards'signed-push-smoke.yml: two edges deleted,valid: true). Tracked in Lock repair chain drops composite-action edges, and --verify-local accepts the result #1122.api-error: a non-404 API failure (rate limit, 5xx) is printed per repo, never silently counted as examined.Evidence
scripts/tests/regen-dependabot-locks-test.sh: 27 cases. Five mutants (no$/guard, no restore, no dirty check, no composite refusal, any probe failure = skip) each turn red.scripts/tests+tests/suite: 0 failures. docstring-scan: 100%.--verify-localrc=0.DRY_RUN=1) produced verifier-cleanchangedlocks on wsl-compute-governor-dispatcher#22, proof-of-work#135 and sanctify-php#106. None of the three has.github/actions/.Pending
Live test is pending App installation (owner step). Then:
gh workflow run dependabot-lock-regen.yml -R hyperpolymath/standards -f repo=<owner/repo>, and confirm a Verified commit plus a green lock check.🤖 Generated with Claude Code
https://claude.ai/code/session_016L7GFo3yGQ2vK9YgKL2wsP