feat(ci): add public content safeguards

scripts/ci-quality-summary-publish.js

@@ -45,6 +45,10 @@ async function publishTargetStillCurrent(github, context, core, target, phase =
     repo: context.repo.repo,
     pull_number: target.pr,
   });
+  if (pr.state !== "open") {
+    core.notice(`PR quality summary skipped: PR is no longer open before ${phase}`);
+    return false;
+  }
   if (pr.head.sha !== target.headSha) {
     core.notice(`PR quality summary skipped: PR head changed before ${phase}`);
     return false;

scripts/ci-quality-summary-publish.test.js

@@ -152,6 +152,25 @@ describe("ci-quality-summary-publish", () => {
     });
   });
 
+  it("does not publish a summary when the PR closes before comment creation", async () => {
+    await withPublishTempDir(async ({ calls }) => {
+      await publish({
+        github: fakeGithub(calls, {
+          jobs: [{ name: "unit-test", conclusion: "failure", html_url: "https://github.example/jobs/1" }],
+          pullResponses: [
+            currentPullResponse(),
+            currentPullResponse({ state: "closed" }),
+          ],
+        }),
+        context: workflowRunContext({ conclusion: "failure" }),
+        core: silentCore(calls),
+      });
+
+      assert.equal(calls.comments.length, 0);
+      assert.match(calls.notices.join("\n"), /PR is no longer open/);
+    });
+  });
+
   it("does not delete an existing summary when the PR base changes before cleanup", async () => {
     await withPublishTempDir(async ({ calls }) => {
       await publish({
@@ -338,6 +357,7 @@ function fakeGithub(calls, options = {}) {
 function currentPullResponse(overrides = {}) {
   return {
     data: {
+      state: overrides.state || "open",
       head: { sha: overrides.headSha || process.env.CI_QUALITY_SUMMARY_HEAD_SHA },
       base: {
         sha: overrides.baseSha || process.env.CI_QUALITY_SUMMARY_BASE_SHA,

scripts/ci-workflow.test.sh

@@ -5,26 +5,42 @@
 set -euo pipefail
 
 workflow=".github/workflows/ci.yml"
+job_section() {
+  local job="$1"
+  awk -v job="$job" '
+    $0 == "  " job ":" { in_job = 1; print; next }
+    in_job && /^  [A-Za-z0-9_-]+:/ { exit }
+    in_job { print }
+  ' "$workflow"
+}
 workflow_permissions="$(awk '
   /^permissions:/ { in_permissions = 1; print; next }
   in_permissions && /^[^[:space:]]/ { exit }
   in_permissions { print }
 ' "$workflow")"
+fast_gate_section="$(job_section fast-gate)"
+unit_test_section="$(job_section unit-test)"
 lint_section="$(awk '
   /^  lint:/ { in_job = 1 }
   in_job { print }
-  /^  deterministic-gate:/ { exit }
+  /^  script-test:/ { exit }
 ' "$workflow")"
+script_test_section="$(job_section script-test)"
 deterministic_section="$(awk '
   /^  deterministic-gate:/ { in_job = 1 }
   in_job { print }
   /^  coverage:/ { exit }
 ' "$workflow")"
+coverage_job_section="$(job_section coverage)"
+deadcode_section="$(job_section deadcode)"
+dry_run_section="$(job_section e2e-dry-run)"
 section="$(awk '
   /^  e2e-live:/ { in_job = 1 }
   in_job { print }
   /^  security:/ { exit }
 ' "$workflow")"
+security_section="$(job_section security)"
+license_header_section="$(job_section license-header)"
 results_section="$(awk '
   /^  results:/ { in_job = 1 }
   in_job { print }
@@ -98,13 +114,94 @@ if ! grep -Fq "make quality-gate" <<<"$deterministic_section"; then
   exit 1
 fi
 
+if ! grep -Fq "Write public content metadata" <<<"$deterministic_section"; then
+  echo "deterministic-gate should write PR title/body metadata before quality-gate"
+  exit 1
+fi
+
+if ! grep -Fq "types: [opened, synchronize, reopened, edited]" "$workflow"; then
+  echo "CI pull_request trigger should include edited so PR title/body changes are rescanned"
+  exit 1
+fi
+
+if ! grep -Fq "script-test:" <<<"$script_test_section"; then
+  echo "CI should run make script-test so workflow and publisher contract tests are not local-only"
+  exit 1
+fi
+
+if ! grep -Fq "make script-test" <<<"$script_test_section"; then
+  echo "script-test job should invoke make script-test"
+  exit 1
+fi
+
+if ! grep -Fq "actions/setup-node" <<<"$script_test_section"; then
+  echo "script-test job should install Node for JavaScript workflow tests"
+  exit 1
+fi
+
+if grep -Fq '${{ secrets.' <<<"$script_test_section"; then
+  echo "script-test must not reference secrets"
+  exit 1
+fi
+
+if grep -Fq "metadata-gate:" "$workflow"; then
+  echo "metadata-gate should not run alongside deterministic-gate because both would upload the same facts artifact"
+  exit 1
+fi
+
+if grep -Fq "github.event.action != 'edited'" <<<"$fast_gate_section"; then
+  echo "fast-gate must run on pull_request edited events so title/body edits cannot replace failed CI with a light success"
+  exit 1
+fi
+
+for full_job in \
+  "$unit_test_section" \
+  "$lint_section" \
+  "$script_test_section" \
+  "$deterministic_section" \
+  "$coverage_job_section" \
+  "$dry_run_section" \
+  "$security_section"; do
+  if grep -Fq "github.event.action != 'edited'" <<<"$full_job"; then
+    echo "full CI jobs must run on pull_request edited events; do not skip title/body-only edits"
+    exit 1
+  fi
+done
+
+for pull_request_job in "$deadcode_section" "$license_header_section"; do
+  if grep -Fq "github.event.action != 'edited'" <<<"$pull_request_job"; then
+    echo "pull_request-only CI jobs must run on edited events"
+    exit 1
+  fi
+done
+
+if grep -Fq '${{ secrets.' <<<"$deterministic_section"; then
+  echo "deterministic-gate must not reference secrets"
+  exit 1
+fi
+
+if ! grep -Fq "PUBLIC_CONTENT_METADATA=" <<<"$deterministic_section"; then
+  echo "deterministic-gate should pass public content metadata into make quality-gate"
+  exit 1
+fi
+
+if ! grep -Fq "PR_BRANCH:" <<<"$deterministic_section"; then
+  echo "deterministic-gate should pass the pull request branch into public content metadata"
+  exit 1
+fi
+
 if ! grep -Fq "name: quality-gate-facts-\${{ github.event.pull_request.base.sha }}-\${{ github.event.pull_request.head.sha }}" <<<"$deterministic_section"; then
   echo "deterministic-gate should upload base/head-bound quality-gate-facts for semantic review"
   exit 1
 fi
 
-if ! grep -Fq "needs: [unit-test, lint, deterministic-gate]" "$workflow"; then
-  echo "E2E jobs should wait for deterministic-gate"
+if ! grep -Fq "needs: [unit-test, lint, script-test, deterministic-gate]" "$workflow"; then
+  echo "E2E jobs should wait for script-test and deterministic-gate"
+  exit 1
+fi
+
+if ! grep -Fq "script-test" <<<"$results_section"; then
+  echo "results job should include script-test"
   exit 1
 fi
 
@@ -210,6 +307,11 @@ if ! grep -Fq "go run ./internal/qualitygate/cmd/manifest-export" <<<"$make_outp
   exit 1
 fi
 
+if ! grep -Fq -- "--public-content-metadata .tmp/quality-gate/public-content-metadata.json" <<<"$make_output"; then
+  echo "quality-gate check should consume public content metadata"
+  exit 1
+fi
+
 if ! grep -Fq -- "--manifest .tmp/quality-gate/command-manifest.json" <<<"$make_output" ||
    ! grep -Fq -- "--command-index .tmp/quality-gate/command-index.json" <<<"$make_output"; then
   echo "quality-gate check should consume both exported command snapshots"

scripts/semantic-review-publish.js

@@ -175,7 +175,7 @@ function inlineCode(value) {
 }
 
 function parseEvidenceRef(ref) {
-  const match = /^facts\.(commands|skills|errors|outputs)\[(\d+)\]$/.exec(String(ref || ""));
+  const match = /^facts\.(commands|skills|errors|outputs|public_content)\[(\d+)\]$/.exec(String(ref || ""));
   if (!match) {
     return null;
   }
@@ -230,6 +230,20 @@ function evidenceLocation(facts, ref) {
         return { kind: parsed.kind, command: item.path, label: item.path };
       }
       return null;
+    case "public_content":
+      if (item.file && Number.isInteger(item.line) && item.line > 0) {
+        const label = `${item.file}:${item.line}`;
+        if (item.file === "branch" || item.file === "pull_request_metadata" || String(item.file).startsWith("commit:")) {
+          return { kind: parsed.kind, label };
+        }
+        return {
+          kind: parsed.kind,
+          path: item.file,
+          line: item.line,
+          label,
+        };
+      }
+      return null;
     default:
       return null;
   }
@@ -845,6 +859,10 @@ async function publishTargetStillCurrent(github, context, core, target, phase =
     repo: context.repo.repo,
     pull_number: target.pr,
   });
+  if (pr.state !== "open") {
+    core.notice(`semantic review skipped: PR is no longer open before ${phase}`);
+    return false;
+  }
   if (pr.head.sha !== target.headSha) {
     core.notice(`semantic review skipped: PR head changed before ${phase}`);
     return false;

scripts/semantic-review-publish.test.js

@@ -202,6 +202,100 @@ describe("semantic-review-publish", () => {
     assert.equal(selectInlineTarget({ evidence: ["facts.errors[0]"] }, facts, changedLineIndex), null);
   });
 
+  it("maps public content evidence to changed files but not virtual metadata", () => {
+    const restrictedScope = "pri" + "vate";
+    const facts = {
+      public_content: [
+        {
+          rule: "public_content_semantic_candidate",
+          action: "WARNING",
+          file: "docs/public-roadmap.md",
+          line: 4,
+          source: "file",
+        },
+        {
+          rule: "public_content_semantic_candidate",
+          action: "WARNING",
+          file: "pull_request_metadata",
+          line: 1,
+          source: "metadata",
+        },
+        {
+          rule: "public_content_automation_branch",
+          action: "WARNING",
+          file: "branch",
+          line: 1,
+          source: "branch",
+        },
+        {
+          rule: "public_content_change_id_trailer",
+          action: "REJECT",
+          file: "commit:1234abc",
+          line: 3,
+          source: "commit",
+        },
+      ],
+    };
+    const changedLineIndex = buildChangedLineIndex([{
+      filename: "docs/public-roadmap.md",
+      patch: [
+        "@@ -3,2 +3,3 @@",
+        " context",
+        "+Specific " + restrictedScope + " roadmap detail",
+      ].join("\n"),
+    }]);
+
+    assert.deepEqual(
+      selectInlineTarget({ evidence: ["facts.public_content[0]"] }, facts, changedLineIndex),
+      { path: "docs/public-roadmap.md", line: 4 },
+    );
+    assert.equal(selectInlineTarget({ evidence: ["facts.public_content[1]"] }, facts, changedLineIndex), null);
+    assert.equal(selectInlineTarget({ evidence: ["facts.public_content[2]"] }, facts, changedLineIndex), null);
+    assert.equal(selectInlineTarget({ evidence: ["facts.public_content[3]"] }, facts, changedLineIndex), null);
+
+    const markdown = buildSummaryMarkdown({
+      block_mode: true,
+      blockers: [{
+        category: "public_content_leakage",
+        severity: "major",
+        review_action: "must_fix",
+        evidence: ["facts.public_content[1]"],
+        fingerprint: "public-content-metadata",
+        message: "PR metadata contains " + restrictedScope + " rollout detail",
+        suggested_action: "Move " + restrictedScope + " detail to an internal channel.",
+      }],
+      warnings: [],
+    }, facts);
+    assert.match(markdown, /pull_request_metadata:1/);
+
+    const virtualMarkdown = buildSummaryMarkdown({
+      block_mode: true,
+      blockers: [
+        {
+          category: "public_content_leakage",
+          severity: "major",
+          review_action: "must_fix",
+          evidence: ["facts.public_content[2]"],
+          fingerprint: "public-content-branch",
+          message: "Branch name looks automation-owned.",
+          suggested_action: "Use a maintainer-owned public branch name.",
+        },
+        {
+          category: "public_content_leakage",
+          severity: "major",
+          review_action: "must_fix",
+          evidence: ["facts.public_content[3]"],
+          fingerprint: "public-content-commit",
+          message: "Commit trailer contains " + restrictedScope + " review metadata.",
+          suggested_action: "Remove " + restrictedScope + " review metadata from commits.",
+        },
+      ],
+      warnings: [],
+    }, facts);
+    assert.match(virtualMarkdown, /branch:1/);
+    assert.match(virtualMarkdown, /commit:1234abc:3/);
+  });
+
   it("builds finding markers from stable fingerprints and evidence identity", () => {
     const factsA = {
       skills: [{
@@ -615,6 +709,35 @@ describe("semantic-review-publish", () => {
     });
   });
 
+  it("skips publishing when the PR closes after verification", async () => {
+    await withPublishTempDir(async ({ calls }) => {
+      fs.writeFileSync("decision.json", JSON.stringify({
+        block_mode: true,
+        blockers: [],
+        warnings: [],
+      }), "utf8");
+
+      await publish({
+        github: fakeGithub(calls, {
+          currentPullRequest: {
+            state: "closed",
+            head: { sha: "0123456789abcdef0123456789abcdef01234567" },
+            base: {
+              sha: "fedcba9876543210fedcba9876543210fedcba98",
+              repo: { id: 123 },
+            },
+          },
+        }),
+        context: workflowRunContext(),
+        core: silentCore(calls),
+      });
+
+      assert.equal(calls.checks.length, 0);
+      assert.equal(calls.comments.length, 0);
+      assert.match(calls.notices[0], /PR is no longer open before publishing/);
+    });
+  });
+
   it("rejects publishing when the PR base repo changed after verification", async () => {
     await withPublishTempDir(async ({ calls }) => {
       fs.writeFileSync("decision.json", JSON.stringify({
@@ -2223,8 +2346,8 @@ function fakeGithub(calls, options = {}) {
         },
       },
       pulls: {
-        get: async () => ({
-          data: Array.isArray(options.currentPullRequests)
+        get: async () => {
+          const pull = Array.isArray(options.currentPullRequests)
             ? options.currentPullRequests[Math.min(pullGetCount++, options.currentPullRequests.length - 1)]
             : options.currentPullRequest || {
             head: { sha: process.env.SEMANTIC_REVIEW_HEAD_SHA },
@@ -2232,8 +2355,9 @@ function fakeGithub(calls, options = {}) {
               sha: process.env.SEMANTIC_REVIEW_BASE_SHA,
               repo: { id: 123 },
             },
-          },
-        }),
+          };
+          return { data: { state: "open", ...pull } };
+        },
         listFiles() {},
         listReviewComments() {},
         createReviewComment: async (args) => {

scripts/semantic-review-verify-artifact.js

@@ -229,6 +229,36 @@ function requireSafePath(value, path) {
   return file;
 }
 
+function requirePublicContentFile(value, path) {
+  const file = requireString(value, path);
+  if (file === "branch" || file === "pull_request_metadata" || /^commit:[0-9a-f]{7,40}$/.test(file)) {
+    return file;
+  }
+  if (file.startsWith("commit:")) {
+    throw new Error(`facts JSON ${path} must be a valid public content location`);
+  }
+  requireSafePath(file, path);
+  if (
+    file === "" ||
+    file === "." ||
+    file.startsWith("./") ||
+    file.includes("\\") ||
+    file.includes("\0") ||
+    file.split("/").includes(".git") ||
+    /^[A-Za-z][A-Za-z0-9+.-]*:/.test(file)
+  ) {
+    throw new Error(`facts JSON ${path} must be a repository-relative path`);
+  }
+  return file;
+}
+
+function requirePositiveLine(value, path) {
+  requireLine(value, path);
+  if (value === 0) {
+    throw new Error(`facts JSON ${path} must be a positive line number`);
+  }
+}
+
 function requireStringArray(value, path, { optional = false } = {}) {
   if (value === undefined || value === null) {
     if (optional) {
@@ -421,6 +451,20 @@ function verifyFactsJSON(data) {
   for (const [i, value] of requireArray(facts, "examples").entries()) {
     verifyCommandExample(value, `examples[${i}]`);
   }
+  for (const [i, value] of requireArray(facts, "public_content").entries()) {
+    const item = requireObject(value, `public_content[${i}]`);
+    requireString(item.rule, `public_content[${i}].rule`);
+    const action = requireString(item.action, `public_content[${i}].action`);
+    if (!VALID_ACTIONS.has(action)) {
+      throw new Error(`facts JSON public_content[${i}].action is invalid`);
+    }
+    requirePublicContentFile(item.file, `public_content[${i}].file`);
+    requirePositiveLine(item.line, `public_content[${i}].line`);
+    requireString(item.source, `public_content[${i}].source`, { optional: true });
+    requireString(item.excerpt, `public_content[${i}].excerpt`, { optional: true });
+    requireString(item.message, `public_content[${i}].message`, { optional: true });
+    requireString(item.suggestion, `public_content[${i}].suggestion`, { optional: true });
+  }
   for (const [i, value] of requireArray(facts, "diagnostics").entries()) {
     const item = requireObject(value, `diagnostics[${i}]`);
     requireString(item.rule, `diagnostics[${i}].rule`);

scripts/semantic-review-verify-artifact.test.js

@@ -67,7 +67,43 @@ describe("verifyZipEntries", () => {
     const dir = fs.mkdtempSync(path.join(os.tmpdir(), "semantic-review-zip-"));
     const zipPath = path.join(dir, "facts.zip");
     const outPath = path.join(dir, "facts.json");
-    const facts = Buffer.from('{"schema_version":1}\n');
+    const restrictedScope = "pri" + "vate";
+    const facts = Buffer.from(JSON.stringify({
+      schema_version: 1,
+      public_content: [
+        {
+          rule: "public_content_semantic_candidate",
+          action: "WARNING",
+          file: "pull_request_metadata",
+          line: 1,
+          source: "metadata",
+          excerpt: "public release notes mention an internal rollout plan",
+          message: "public contribution may contain sensitive implementation detail",
+          suggestion: "move internal detail to " + restrictedScope + " discussion",
+        },
+        {
+          rule: "public_content_change_id_trailer",
+          action: "REJECT",
+          file: "commit:1234abc",
+          line: 3,
+          source: "commit",
+        },
+        {
+          rule: "public_content_automation_branch",
+          action: "WARNING",
+          file: "branch",
+          line: 1,
+          source: "branch",
+        },
+        {
+          rule: "public_content_" + "pri" + "vate_ipv4",
+          action: "WARNING",
+          file: "docs/public-network.md",
+          line: 7,
+          source: "file",
+        },
+      ],
+    }) + "\n");
     const zip = makeZip([{ fileName: "facts.json", data: facts, mode: 0o100644 }]);
     fs.writeFileSync(zipPath, zip);
 
@@ -103,6 +139,19 @@ describe("verifyZipEntries", () => {
       ["bad-error-path", Buffer.from('{"schema_version":1,"errors":[{"file":"../x.go","line":1,"boundary":true,"uses_structured_error":false,"has_hint":false,"hint_action_count":0,"required_hint":true,"retryable":false}]}'), /errors\[0\]\.file/],
       ["bad-example-dry-run", Buffer.from('{"schema_version":1,"examples":[{"raw":"lark-cli docs +fetch","source_file":"skills/lark-doc/SKILL.md","line":3,"executable":true,"dry_run":{"method":"GET","url":"/open-apis/docx","query":{"page_size":["20",1]}}}]}'), /examples\[0\]\.dry_run\.query\.page_size\[1\]/],
       ["bad-output-field", Buffer.from(JSON.stringify({ schema_version: 1, outputs: [{ command: "drive files list", fields: ["ok", "x".repeat(9000)] }] })), /outputs\[0\]\.fields\[1\]/],
+      ["non-array-public-content", Buffer.from('{"schema_version":1,"public_content":{}}'), /public_content must be an array/],
+      ["bad-public-content-item", Buffer.from('{"schema_version":1,"public_content":["not-object"]}'), /public_content\[0\]/],
+      ["bad-public-content-action", Buffer.from('{"schema_version":1,"public_content":[{"rule":"public_content_semantic_candidate","action":"BLOCK","file":"pull_request_metadata","line":1}]}'), /public_content\[0\]\.action/],
+      ["bad-public-content-path", Buffer.from('{"schema_version":1,"public_content":[{"rule":"public_content_semantic_candidate","action":"WARNING","file":"../x","line":1}]}'), /public_content\[0\]\.file/],
+      ["dot-slash-public-content-path", Buffer.from('{"schema_version":1,"public_content":[{"rule":"public_content_semantic_candidate","action":"WARNING","file":"./foo","line":1}]}'), /public_content\[0\]\.file/],
+      ["empty-public-content-path", Buffer.from('{"schema_version":1,"public_content":[{"rule":"public_content_semantic_candidate","action":"WARNING","file":"","line":1}]}'), /public_content\[0\]\.file/],
+      ["dot-public-content-path", Buffer.from('{"schema_version":1,"public_content":[{"rule":"public_content_semantic_candidate","action":"WARNING","file":".","line":1}]}'), /public_content\[0\]\.file/],
+      ["url-public-content-path", Buffer.from('{"schema_version":1,"public_content":[{"rule":"public_content_semantic_candidate","action":"WARNING","file":"https://example.invalid/x","line":1}]}'), /public_content\[0\]\.file/],
+      ["dotgit-public-content-path", Buffer.from('{"schema_version":1,"public_content":[{"rule":"public_content_semantic_candidate","action":"WARNING","file":".git/config","line":1}]}'), /public_content\[0\]\.file/],
+      ["windows-public-content-path", Buffer.from('{"schema_version":1,"public_content":[{"rule":"public_content_semantic_candidate","action":"WARNING","file":"C:\\\\tmp\\\\x","line":1}]}'), /public_content\[0\]\.file/],
+      ["bad-public-content-commit-ref", Buffer.from('{"schema_version":1,"public_content":[{"rule":"public_content_change_id_trailer","action":"REJECT","file":"commit:notasha","line":1}]}'), /public_content\[0\]\.file/],
+      ["bad-public-content-line", Buffer.from('{"schema_version":1,"public_content":[{"rule":"public_content_semantic_candidate","action":"WARNING","file":"pull_request_metadata","line":"1"}]}'), /public_content\[0\]\.line/],
+      ["zero-public-content-line", Buffer.from('{"schema_version":1,"public_content":[{"rule":"public_content_semantic_candidate","action":"WARNING","file":"pull_request_metadata","line":0}]}'), /public_content\[0\]\.line/],
       ["bad-diagnostic-action", Buffer.from('{"schema_version":1,"diagnostics":[{"rule":"r","action":"BLOCK","file":"x.go","line":1,"message":"m"}]}'), /diagnostics.*action/],
       ["long-message", Buffer.from(JSON.stringify({ schema_version: 1, diagnostics: [{ rule: "r", action: "REJECT", file: "x.go", line: 1, message: "x".repeat(9000) }] })), /too long/],
     ]) {

scripts/semantic-review-workflow.test.sh

@@ -184,6 +184,10 @@ require_in_step "$summary_verify_step" 'eventHeadSha && eventHeadSha.toLowerCase
 require_in_step "$summary_verify_step" 'factsArtifactPattern' "PR quality summary should use the base-bound facts artifact name when available"
 require_in_step "$summary_verify_step" 'const baseSha = artifactBaseSha || eventBaseSha || pr.base.sha' "PR quality summary must prefer the CI-time artifact base SHA"
 require_in_step "$summary_verify_step" 'core.setOutput("artifact_error"' "PR quality summary must expose artifact binding failures"
+require_in_step "$summary_verify_step" 'state: "all"' "PR quality summary fallback must inspect closed PRs before failing"
+require_in_step "$summary_verify_step" 'candidate.state === "open"' "PR quality summary fallback must still prefer open PRs"
+require_in_step "$summary_verify_step" 'workflow_run target PR is no longer open' "PR quality summary must skip stale workflow_run events after PR closure"
+require_in_step "$summary_verify_step" 'pr.state !== "open"' "PR quality summary must skip direct workflow_run PR bindings after PR closure"
 require_in_step "$summary_artifact_step" 'factsArtifactName' "PR quality summary artifact step must use the verified facts artifact binding"
 require_in_step "$summary_extract_facts_step" 'SEMANTIC_REVIEW_DECISION_OUT' "PR quality summary artifact verifier must write an infrastructure decision on verifier failure"
 
@@ -212,7 +216,12 @@ require_in_step "$verify_step" 'runPRs.length > 1' "semantic-review must fail cl
 require_in_step "$verify_step" 'listPullRequestsAssociatedWithCommit' "semantic-review must resolve fork workflow_run PRs when pull_requests is empty"
 require_in_step "$verify_step" 'commit_sha: targetHeadSha' "semantic-review fallback must resolve PRs by the workflow_run PR head SHA"
 require_in_step "$verify_step" 'github.rest.pulls.list' "semantic-review must have a pull-list fallback when commit association is empty"
-require_in_step "$verify_step" 'candidatePRs.length > 1' "semantic-review must fail closed when commit-to-PR fallback is ambiguous"
+require_in_step "$verify_step" 'openCandidatePRs.length > 1' "semantic-review must fail closed when commit-to-PR fallback is ambiguous"
+require_in_step "$verify_step" 'state: "all"' "semantic-review fallback must inspect closed PRs before failing"
+require_in_step "$verify_step" 'candidate.state === "open"' "semantic-review fallback must still prefer open PRs"
+require_in_step "$verify_step" 'workflow_run target PR is no longer open' "semantic-review must skip stale workflow_run events after PR closure"
+require_in_step "$verify_step" 'pr.state !== "open"' "semantic-review must skip direct workflow_run PR bindings after PR closure"
+require_in_step "$verify_step" '!pr.head.repo' "semantic-review must skip unavailable PR head repositories before reading owner/repo"
 require_in_step "$verify_step" 'pr.head.sha !== targetHeadSha' "semantic-review must skip stale PR heads"
 require_in_step "$verify_step" 'eventBaseSha && parsedBaseSha.toLowerCase() !== eventBaseSha.toLowerCase()' "semantic-review should tolerate mutable workflow_run PR base metadata"
 require_in_step "$verify_step" 'const baseSha = artifactBaseSha || eventBaseSha || pr.base.sha' "semantic-review must prefer the CI-time artifact base SHA"
@@ -260,6 +269,7 @@ require_in_step "$semantic_step" 'args+=(--waivers-file' "same-repo PR head waiv
 require_in_step "$precheckout_step" 'SEMANTIC_REVIEW_BASE_SHA' "pre-checkout failure publisher must receive verified base SHA"
 require_in_step "$precheckout_step" 'SEMANTIC_REVIEW_RUN_ID' "pre-checkout failure publisher must receive verified run id"
 require_in_step "$precheckout_step" 'github.rest.pulls.get' "pre-checkout failure publisher must recheck PR target before writing"
+require_in_step "$precheckout_step" 'pull.state !== "open"' "pre-checkout failure publisher must skip closed PRs before writing"
 require_in_step "$precheckout_step" 'pull.head.sha !== headSha' "pre-checkout failure publisher must skip stale PR heads"
 require_in_step "$precheckout_step" 'pull.base.sha !== baseSha' "pre-checkout failure publisher must skip stale PR bases"