diff --git a/scripts/workflow-registry-audit.mjs b/scripts/workflow-registry-audit.mjs
index 9d51f3fc3..92e9da706 100644
--- a/scripts/workflow-registry-audit.mjs
+++ b/scripts/workflow-registry-audit.mjs
@@ -1,4 +1,5 @@
 const REPOSITORY_WORKFLOW_PREFIX = ".github/workflows/";
+const EXPECTED_REPOSITORY = "ContextualWisdomLab/noema";
 const LOWERCASE_SHA_40 = /^[0-9a-f]{40}$/;
 const PERCENT_ENCODING = /%[0-9a-f]{2}/i;
 const MAX_DIAGNOSTIC_DETAIL_LENGTH = 2048;
@@ -252,6 +253,14 @@ function classifyRecord(
  */
 export function classifyWorkflowRegistry(input) {
   const failures = [];
+
+  if (input?.repository !== EXPECTED_REPOSITORY) {
+    failures.push({
+      code: "repository_identity_invalid",
+      detail: `Workflow registry evidence must be bound to exact repository ${EXPECTED_REPOSITORY}.`,
+    });
+  }
+
   const trackedWorkflowPathsProblem = workflowPathInventoryFailure(
     input?.trackedWorkflowPaths,
     "tracked_workflow_paths_invalid",
@@ -307,12 +316,19 @@ export function classifyWorkflowRegistry(input) {
   }
 
   const firstPathById = new Map();
+  const firstIdByPath = new Map();
   for (const record of workflows) {
     if (!Number.isSafeInteger(record?.id) || typeof record?.path !== "string") {
       continue;
     }
     const firstPath = firstPathById.get(record.id);
-    if (firstPath !== undefined && firstPath !== record.path) {
+    if (firstPath === record.path) {
+      failures.push({
+        code: "workflow_record_duplicate",
+        workflow_id: record.id,
+        detail: `Workflow registry repeated id ${record.id} for path ${record.path}; duplicate records cannot prove a complete registry snapshot.`,
+      });
+    } else if (firstPath !== undefined) {
       failures.push({
         code: "workflow_id_reused",
         workflow_id: record.id,
@@ -321,6 +337,17 @@ export function classifyWorkflowRegistry(input) {
     } else {
       firstPathById.set(record.id, record.path);
     }
+
+    const firstId = firstIdByPath.get(record.path);
+    if (firstId === undefined) {
+      firstIdByPath.set(record.path, record.id);
+    } else if (firstId !== record.id) {
+      failures.push({
+        code: "workflow_path_reused",
+        workflow_id: record.id,
+        detail: `Workflow path ${record.path} is associated with conflicting ids ${firstId} and ${record.id}.`,
+      });
+    }
   }
 
   const classified = workflows.map((record) =>
@@ -395,6 +422,24 @@ function collectionFailure({ repository, observedAt, defaultBranchSha, error })
  */
 export async function collectWorkflowRegistryAudit(input) {
   const observedAt = input.now();
+  if (input.repository !== EXPECTED_REPOSITORY) {
+    return {
+      schema_version: 1,
+      repository_full_name: input.repository ?? null,
+      default_branch_sha: null,
+      observed_at: observedAt,
+      pagination_receipts: [],
+      status: "FAIL",
+      failures: [
+        {
+          code: "repository_identity_invalid",
+          detail: `Workflow registry evidence must be bound to exact repository ${EXPECTED_REPOSITORY}.`,
+        },
+      ],
+      workflows: [],
+    };
+  }
+
   let initialBranch;
   let workflowPages;
   let activePullRequestWorkflowPaths;
diff --git a/test/workflow-registry-audit.test.ts b/test/workflow-registry-audit.test.ts
index f0baaf655..639b0a98f 100644
--- a/test/workflow-registry-audit.test.ts
+++ b/test/workflow-registry-audit.test.ts
@@ -299,7 +299,7 @@ describe("workflow registry audit", () => {
     );
   });
 
-  it("allows duplicate observations of the same id/path without inventing reuse", () => {
+  it("fails closed when the same workflow id/path is repeated", () => {
     const duplicate = workflow({ id: 710, path: ".github/workflows/ci.yml" });
     const result = classifyWorkflowRegistry({
       repository: "ContextualWisdomLab/noema",
@@ -311,8 +311,13 @@ describe("workflow registry audit", () => {
       pagination: completePagination(2),
     });
 
-    expect(result.status).toBe("PASS");
-    expect(result.failures).toEqual([]);
+    expect(result.status).toBe("FAIL");
+    expect(result.failures).toContainEqual(
+      expect.objectContaining({
+        code: "workflow_record_duplicate",
+        workflow_id: 710,
+      }),
+    );
   });
 
   it("rejects branch identity that is not exact lowercase 40-hex", () => {
@@ -452,4 +457,4 @@ describe("workflow registry audit", () => {
       NO_COLOR: "1",
     });
   });
-});
+});
\ No newline at end of file
diff --git a/test/workflow-registry-collector-repository-binding.test.ts b/test/workflow-registry-collector-repository-binding.test.ts
new file mode 100644
index 000000000..5cf73650a
--- /dev/null
+++ b/test/workflow-registry-collector-repository-binding.test.ts
@@ -0,0 +1,47 @@
+import { describe, expect, it, vi } from "vitest";
+import { collectWorkflowRegistryAudit } from "../scripts/workflow-registry-audit.mjs";
+
+describe("workflow registry collector repository binding", () => {
+  it.each([
+    "ContextualWisdomLab/other",
+    "contextualwisdomlab/noema",
+    " ContextualWisdomLab/noema ",
+    null,
+  ])("refuses repository %j before any GitHub collection call", async (repository) => {
+    const resolveDefaultBranch = vi.fn(async () => ({
+      sha: "1fbe857a5cf52b5af31e2db5e4676876289e3e23",
+      workflowPaths: [".github/workflows/ci.yml"],
+    }));
+    const listWorkflowPage = vi.fn(async () => ({
+      totalCount: 0,
+      workflows: [],
+      hasNext: false,
+    }));
+    const listActivePullRequestWorkflowPaths = vi.fn(async () => []);
+
+    const result = await collectWorkflowRegistryAudit({
+      repository,
+      resolveDefaultBranch,
+      listWorkflowPage,
+      listActivePullRequestWorkflowPaths,
+      now: () => "2026-08-13T15:45:00.000Z",
+    });
+
+    expect(result).toMatchObject({
+      repository_full_name: repository,
+      default_branch_sha: null,
+      status: "FAIL",
+      failures: [
+        {
+          code: "repository_identity_invalid",
+          detail:
+            "Workflow registry evidence must be bound to exact repository ContextualWisdomLab/noema.",
+        },
+      ],
+      workflows: [],
+    });
+    expect(resolveDefaultBranch).not.toHaveBeenCalled();
+    expect(listWorkflowPage).not.toHaveBeenCalled();
+    expect(listActivePullRequestWorkflowPaths).not.toHaveBeenCalled();
+  });
+});
diff --git a/test/workflow-registry-duplicate-records.test.ts b/test/workflow-registry-duplicate-records.test.ts
new file mode 100644
index 000000000..b87e797c2
--- /dev/null
+++ b/test/workflow-registry-duplicate-records.test.ts
@@ -0,0 +1,60 @@
+import { describe, expect, it } from "vitest";
+import { classifyWorkflowRegistry } from "../scripts/workflow-registry-audit.mjs";
+
+describe("workflow registry duplicate record integrity", () => {
+  it("fails closed when pagination repeats the same workflow identity", () => {
+    const workflow = {
+      id: 42,
+      path: ".github/workflows/ci.yml",
+      state: "active",
+    };
+
+    const result = classifyWorkflowRegistry({
+      repository: "ContextualWisdomLab/noema",
+      defaultBranchSha: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
+      observedAt: "2026-08-14T00:00:00.000Z",
+      workflows: [workflow, { ...workflow }],
+      trackedWorkflowPaths: [workflow.path],
+      activePullRequestWorkflowPaths: [],
+      pagination: {
+        totalCount: 2,
+        receipts: [{ page: 1, itemCount: 2, hasNext: false }],
+      },
+    });
+
+    expect(result.status).toBe("FAIL");
+    expect(result.failures).toContainEqual({
+      code: "workflow_record_duplicate",
+      workflow_id: 42,
+      detail:
+        "Workflow registry repeated id 42 for path .github/workflows/ci.yml; duplicate records cannot prove a complete registry snapshot.",
+    });
+  });
+
+  it("fails closed when different workflow identities claim the same repository path", () => {
+    const workflowPath = ".github/workflows/ci.yml";
+    const result = classifyWorkflowRegistry({
+      repository: "ContextualWisdomLab/noema",
+      defaultBranchSha: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
+      observedAt: "2026-08-14T00:00:00.000Z",
+      workflows: [
+        { id: 42, path: workflowPath, state: "active" },
+        { id: 43, path: workflowPath, state: "active" },
+      ],
+      trackedWorkflowPaths: [workflowPath],
+      activePullRequestWorkflowPaths: [],
+      pagination: {
+        totalCount: 2,
+        receipts: [{ page: 1, itemCount: 2, hasNext: false }],
+      },
+    });
+
+    expect(result.status).toBe("FAIL");
+    expect(result.failures).toContainEqual({
+      code: "workflow_path_reused",
+      workflow_id: 43,
+      detail:
+        "Workflow path .github/workflows/ci.yml is associated with conflicting ids 42 and 43.",
+    });
+  });
+});
diff --git a/test/workflow-registry-repository-binding.test.ts b/test/workflow-registry-repository-binding.test.ts
new file mode 100644
index 000000000..01033616b
--- /dev/null
+++ b/test/workflow-registry-repository-binding.test.ts
@@ -0,0 +1,32 @@
+import { describe, expect, it } from "vitest";
+import { classifyWorkflowRegistry } from "../scripts/workflow-registry-audit.mjs";
+
+const validInput = {
+  defaultBranchSha: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
+  observedAt: "2026-08-13T15:00:00.000Z",
+  workflows: [],
+  trackedWorkflowPaths: [],
+  activePullRequestWorkflowPaths: [],
+  pagination: { totalCount: 0, receipts: [] },
+};
+
+describe("workflow registry repository binding", () => {
+  it.each([
+    "ContextualWisdomLab/other",
+    "contextualwisdomlab/noema",
+    " ContextualWisdomLab/noema ",
+    null,
+  ])(
+    "rejects evidence bound to %s",
+    (repository) => {
+      const result = classifyWorkflowRegistry({ ...validInput, repository });
+
+      expect(result.status).toBe("FAIL");
+      expect(result.failures).toContainEqual({
+        code: "repository_identity_invalid",
+        detail:
+          "Workflow registry evidence must be bound to exact repository ContextualWisdomLab/noema.",
+      });
+    },
+  );
+});
\ No newline at end of file