diff --git a/.github/workflows/integrity.yml b/.github/workflows/integrity.yml
index b8219ff..805abaf 100644
--- a/.github/workflows/integrity.yml
+++ b/.github/workflows/integrity.yml
@@ -1,12 +1,29 @@
 name: Riverbraid Verification Gate
-on: [push, workflow_dispatch]
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
 jobs:
   verify:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
-      - name: Substrate Audit
-        run: |
-          echo "--- STARTING INTEGRITY CHECK ---"
-          node -v
-          echo "✅ Substrate Stationary"
+      - name: Checkout Repository
+        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262
+
+      - name: Setup Node.js
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020
+        with:
+          node-version: '24.11.1'
+
+      - name: Execute repository-local verifier
+        run: npm test
+
+      - name: Validate runtime-binding source status
+        run: node tests/runtime-binding-status.mjs
diff --git a/RUNTIME_BINDING_STATUS.json b/RUNTIME_BINDING_STATUS.json
new file mode 100644
index 0000000..93eb8c0
--- /dev/null
+++ b/RUNTIME_BINDING_STATUS.json
@@ -0,0 +1,65 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "record_id": "RB-HARNESS-GOLD-RUNTIME-BINDING-STATUS-001",
+  "version": "1.0.0-candidate",
+  "as_of": "2026-07-27",
+  "repository": "Riverbraid/Riverbraid-Harness-Gold",
+  "status": "BLOCKED_BY_SOURCE_CONTRACT",
+  "assessed_entrypoints": [
+    "runtime-binding.js",
+    "src/runtime-binding.js"
+  ],
+  "intended_gpg_contract": {
+    "executable": "gpg",
+    "arguments": ["--verify", "SIGNATURE_PATH", "ANCHOR_PATH"],
+    "ci_skip_permitted": false,
+    "invalid_signature_must_fail_closed": true,
+    "missing_signature_or_anchor_must_fail_closed": true
+  },
+  "observed_blockers": [
+    {
+      "code": "MISSING_VERIFY_SWARM_IMPLEMENTATION",
+      "path": "bin/verify-swarm.cjs",
+      "effect": "Both runtime-binding entrypoints require verifySwarm and getCurrentRoot from a file that is not present on the observed default branch."
+    },
+    {
+      "code": "MISSING_SHIELD_IMPLEMENTATION",
+      "path": "riverbraid-shield.js",
+      "effect": "Both runtime-binding entrypoints require a shield module that is not present on the observed default branch."
+    },
+    {
+      "code": "MODULE_FORMAT_MISMATCH",
+      "path": "runtime-binding.js",
+      "effect": "The package declares type=module while this .js entrypoint uses CommonJS require and module.exports syntax."
+    },
+    {
+      "code": "MODULE_FORMAT_MISMATCH",
+      "path": "src/runtime-binding.js",
+      "effect": "The package declares type=module while this .js entrypoint uses CommonJS require and module.exports syntax."
+    }
+  ],
+  "gpg_execution_evidence": "NOT_ASSESSED",
+  "repository_verifier_relationship": "SEPARATE_LOCAL_STATIONARITY_SURFACE",
+  "claim_effect": "The repository-local verifier may execute independently, but the runtime GPG binding cannot be described as executable or verified from the observed source state.",
+  "required_repair_sequence": [
+    "Recover or implement the exact verify-swarm dependency under an attributable specification.",
+    "Recover or implement the exact shield dependency under an attributable specification.",
+    "Reconcile runtime-binding module format with the package type and declared consumers.",
+    "Add direct valid-signature, invalid-signature, missing-input, and CI=true GPG tests using an isolated keyring.",
+    "Execute the tests on an exact source identity and preserve the result before reclassifying this record."
+  ],
+  "nonclaims": [
+    "This record does not establish compromise.",
+    "This record does not establish that the intended missing dependencies are known.",
+    "This record does not verify GPG behavior.",
+    "This record does not establish production readiness, security hardening, external audit, or absence of defects.",
+    "A green repository-local verifier does not close the runtime-binding fault."
+  ],
+  "review_triggers": [
+    "bin/verify-swarm.cjs is added or restored",
+    "riverbraid-shield.js is added or restored",
+    "runtime-binding module format changes",
+    "a declared runtime consumer is identified",
+    "direct GPG execution evidence is produced"
+  ]
+}
diff --git a/tests/runtime-binding-status.mjs b/tests/runtime-binding-status.mjs
new file mode 100644
index 0000000..23486b1
--- /dev/null
+++ b/tests/runtime-binding-status.mjs
@@ -0,0 +1,51 @@
+import assert from "node:assert/strict";
+import fs from "node:fs";
+
+const status = JSON.parse(fs.readFileSync("RUNTIME_BINDING_STATUS.json", "utf8"));
+const pkg = JSON.parse(fs.readFileSync("package.json", "utf8"));
+
+const entrypoints = ["runtime-binding.js", "src/runtime-binding.js"];
+const missingDependencies = ["bin/verify-swarm.cjs", "riverbraid-shield.js"].filter(
+  (file) => !fs.existsSync(file)
+);
+
+const moduleFormatMismatches = [];
+for (const file of entrypoints) {
+  assert.equal(fs.existsSync(file), true, `${file} must exist`);
+  const source = fs.readFileSync(file, "utf8");
+  const usesCommonJs = source.includes("require(") || source.includes("module.exports");
+  if (pkg.type === "module" && usesCommonJs && file.endsWith(".js")) {
+    moduleFormatMismatches.push(file);
+  }
+}
+
+const observedBlockerCodes = new Set(status.observed_blockers.map((item) => item.code));
+
+if (missingDependencies.length > 0) {
+  assert.equal(observedBlockerCodes.has("MISSING_VERIFY_SWARM_IMPLEMENTATION"), true);
+  assert.equal(observedBlockerCodes.has("MISSING_SHIELD_IMPLEMENTATION"), true);
+}
+
+if (moduleFormatMismatches.length > 0) {
+  assert.equal(observedBlockerCodes.has("MODULE_FORMAT_MISMATCH"), true);
+}
+
+const isBlocked = missingDependencies.length > 0 || moduleFormatMismatches.length > 0;
+
+if (isBlocked) {
+  assert.equal(status.status, "BLOCKED_BY_SOURCE_CONTRACT");
+  assert.equal(status.gpg_execution_evidence, "NOT_ASSESSED");
+  console.log(JSON.stringify({
+    status: "RUNTIME_BINDING_BLOCKED_STATE_CONFIRMED",
+    missing_dependencies: missingDependencies,
+    module_format_mismatches: moduleFormatMismatches,
+    gpg_execution_evidence: status.gpg_execution_evidence
+  }, null, 2));
+} else {
+  assert.notEqual(
+    status.status,
+    "BLOCKED_BY_SOURCE_CONTRACT",
+    "The status record must be reviewed when all observed source blockers are removed."
+  );
+  console.log("RUNTIME_BINDING_SOURCE_BLOCKERS_REMOVED_REVIEW_REQUIRED");
+}