feat: implement issue #1725 — [Phase 2] Make caller_stub_freeze and validate-caller-inputs ingress-aware (job-scoped freeze + if:-as-event-filter check) - #1772
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…alidate-caller-inputs ingress-aware (job-scoped freeze + if:-as-event-filter check)
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Included review availability: Your plan provides up to 1 included review per hour; 0 remain after this review. 📝 WalkthroughWalkthroughThe pull request adds an ingress-condition validator, makes caller freezing job-scoped, extends caller-input coverage for multiple reusable workflow pins, and wires the validator into lint CI. ChangesAgent ingress guard updates
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~45 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant LintJob
participant ValidateIngressIf
participant RulingsTable
participant AgentIngressWorkflow
LintJob->>ValidateIngressIf: run repository scan
ValidateIngressIf->>RulingsTable: read ALLOW/FORBID constructs
ValidateIngressIf->>AgentIngressWorkflow: inspect jobs and if expressions
AgentIngressWorkflow-->>ValidateIngressIf: workflow structure and conditions
ValidateIngressIf-->>LintJob: validation result and diagnostics
Merge Risk: 🟡 Moderate · up to Specific ingress workflows may still bypass condition validation or lose caller-freeze protection, so these safeguards should be corrected before merge. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Description checkExplanation The description explains the implementation and impact, but it omits the required Summary, Interaction contract, and Checklist sections from the repository template. It also does not confirm the shellcheck and documentation checks. Resolution Reformat the description using the repository template. Add a Summary section, complete the Interaction contract section with the N/A checkbox if no agentic role changed, and complete the Checklist with shellcheck and documentation status. Remove unrelated generated usage guidance if it is not required by the repository template. ✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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Code Review
This pull request updates the caller stub freeze guard (caller_stub_freeze.sh) to be job-scoped, allowing it to support multi-job workflows like the collapsed agent-ingress.yml from ADR-0007. It also introduces a new validation script (validate-ingress-if.sh) to ensure that ingress jobs are thin callers and that their if: conditions act as pure event filters without accessing repository state. Comprehensive BATS tests and fixtures are added to validate these changes. The review feedback recommends adding a pre-flight check for the yq dependency, improving TSV parsing robustness against missing trailing newlines, and replacing generic non-zero exit code assertions in tests with specific exit code checks to prevent false positives.
Dev-Lead — review-changes (applied)Changes committed and pushed. |
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Actionable comments posted: 3
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Inline comments:
In `@scripts/caller_stub_freeze.sh`:
- Line 111: Update extract_forwarding_block to buffer the job-scoped extraction
before emitting the top-level on: block, returning empty output when the named
job is absent; emit the trigger only when the buffered extraction is non-empty.
Add a regression test covering an unknown job that verifies empty extraction and
MISSING classification through classify_stub_drift.
In `@scripts/validate-ingress-if.sh`:
- Around line 63-70: Update the ingress expression validation logic around the
context checks in scripts/validate-ingress-if.sh to recognize indexed accesses
such as vars['...'] and github['...'] alongside dot notation. Ensure the same
event-only allowlist and repository-state restrictions apply to both forms, and
add fixtures covering indexed context access, including vars and github
repository references.
In `@tests/dev-lead/unit/test_validate_caller_inputs.bats`:
- Line 144: Add a reusable-workflow job without a with: block to the ingress
fixture, alongside the existing jobs and preserving the if:/permissions:
ordering scenario. Extend the relevant assertions to call vci_with_keys_for_job
for that job and verify status 0 with empty output, covering sibling-key leakage
in this layout.
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.github/workflows/lint.ymlscripts/caller_stub_freeze.shscripts/validate-ingress-if.shtests/caller_stub_freeze.batstests/dev-lead/fixtures/caller-inputs/ingress-drift/.github/workflows/agent-ingress.ymltests/dev-lead/fixtures/caller-inputs/ingress-reusable/dev-lead-reusable.ymltests/dev-lead/fixtures/caller-inputs/ingress-reusable/pr-review-mention-reusable.ymltests/dev-lead/fixtures/caller-inputs/ingress/.github/workflows/agent-ingress.ymltests/dev-lead/unit/test_validate_caller_inputs.batstests/fixtures/agent-ingress/ingress-samples/good.ymltests/fixtures/agent-ingress/ingress-samples/malformed.ymltests/fixtures/agent-ingress/ingress-samples/repo-state.ymltests/fixtures/caller-stub-freeze/dev-lead.blocktests/fixtures/caller-stub-freeze/ingress/.github/workflows/agent-ingress.ymltests/test_validate_ingress_if.bats
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Automated review — APPROVED ✓
Risk: MEDIUM
Reviewed commit: f5cd9dc19e01ccd6d9f8af4d9a8bac681bc37b16
Cascade: triage → deep (triage: haiku 4.5 [sonnet 5] → deep: opus 4.8 [sonnet 5] + duck: o4-mini → audit: fable 5)
Summary
Job-scoped refactor of caller_stub_freeze.sh plus a new hermetic validate-ingress-if.sh guard and its CI job/tests for #1725. I traced the control/data flow and confirmed behavior by executing the actual scripts: the ingress if:-filter guard correctly ALLOWs pure event predicates and FORBIDs every repo-state reach (vars/secrets/needs/hashFiles/repo-identity/default-branch/labels, including bracket-indexed forms and the env.* allowlist backstop), and rejects non-thin-caller jobs; the freeze extractor correctly yields MISSING (not a falsely-ALIGNED on:-only block) for an absent job while keeping all three existing single-job stubs ALIGNED, and flips DRIFTED on a tampered block. No security- or safety-critical path is touched; the workflow change only ADDS a pinned, hermetic guard job (no secrets, no third-party reusable, CI strengthened not weakened). Downstream impact: (none).
Findings
- INFO: Prior advisory CRITICAL (lint.yml invoked tests/agent_ingress_if_filter.bats while the added test was named differently) and HIGH (validate-ingress-if.sh silently mis-reporting 'no jobs' when yq is absent) are both RESOLVED at head f5cd9dc: lint.yml references tests/test_validate_ingress_if.bats which exists (all three referenced bats files present), and main() now has a
command -v yqpreflight that fails fast. Confirmed by running the guard against the good/repo-state/malformed fixtures and by inspecting main(). [auditable: repro confirmed] (scripts/validate-ingress-if.sh:505) - MINOR: PR description is missing the required risk / test-plan / rollback sections (triage DESCRIPTION_MISSING: 3). The substantive CodeAnt/CodeRabbit descriptions and extensive in-code WHY comments compensate, and tests demonstrably exercise real behavior, so this does not block — but the formal sections should be added for auditability.
- INFO: Advisory (codeant, Major) noted the collapsed-ingress FIXTURE (tests/fixtures/caller-stub-freeze/ingress/.github/workflows/agent-ingress.yml) omits pull_request_review_comment relative to the canonical dev-lead ingress. This is a test fixture, not the production ingress (no .github/workflows/agent-ingress.yml exists yet — the validate-ingress-if job is a clean pass by design until the collapse story lands), so it is not a shipping-code defect; worth aligning the fixture's trigger set with the canonical ingress when the collapse is implemented so freeze coverage stays representative. (
tests/fixtures/caller-stub-freeze/ingress/.github/workflows/agent-ingress.yml:17)
Reviewed by the PR-review cascade (triage: haiku 4.5 [sonnet 5] → deep: opus 4.8 [sonnet 5] + duck: o4-mini → audit: fable 5). Reply if you need a human review.
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User description
Closes #1725
Implemented by dev-lead agent. Please review.
Summary by CodeRabbit
New Features
Bug Fixes
Tests
CodeAnt-AI Description
Validate multi-job agent ingress workflows and freeze each job’s caller configuration
What Changed
if:only to filter delivered event data; repository state, secrets, variables, job outputs, and other non-event contexts are rejected.Impact
✅ Safer multi-role workflow merges✅ Fewer hidden permission and input mismatches✅ Clearer errors for the affected ingress job💡 Usage Guide
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