diff --git a/src/contracts/artifactComparisonExample.ts b/src/contracts/artifactComparisonExample.ts
index 1cf1ab87d7..4b9550b1c1 100644
--- a/src/contracts/artifactComparisonExample.ts
+++ b/src/contracts/artifactComparisonExample.ts
@@ -73,6 +73,7 @@ const inventory = (digit: string) => {
     occurrences,
     edges,
     provenance: [],
+    integrity_contradictions: integrityContradictions,
     coverage: { scope: "root", status: "complete" },
     limitations: [],
   });
diff --git a/src/domain/artifactGraph.test.ts b/src/domain/artifactGraph.test.ts
index 2840223e5c..3ab8e54646 100644
--- a/src/domain/artifactGraph.test.ts
+++ b/src/domain/artifactGraph.test.ts
@@ -71,7 +71,7 @@ describe("artifact graph path and provenance fields", () => {
     expect(parsed.provenance[0]?.arguments[0]).toBe(arguments_[0]);
   });
 
-  it("requires current scoped coverage and rejects the obsolete status alias", () => {
+  it("requires current coverage and integrity facts and rejects the obsolete status alias", () => {
     const inventory = {
       manifest: {
         manifest_id: `agm_${"b".repeat(64)}`,
@@ -94,6 +94,22 @@ describe("artifact graph path and provenance fields", () => {
     expect(artifactInventoryResultSchema.safeParse(inventory).success).toBe(
       false,
     );
+    const { integrity_contradictions: _facts, ...withoutIntegrityFacts } =
+      inventory;
+    const currentWithoutIntegrityFacts = {
+      ...withoutIntegrityFacts,
+      coverage: { scope: "root", status: "complete" },
+    };
+    expect(
+      artifactInventoryResultSchema.safeParse(currentWithoutIntegrityFacts)
+        .success,
+    ).toBe(false);
+    expect(
+      artifactInventoryResultSchema.safeParse({
+        ...currentWithoutIntegrityFacts,
+        integrity_contradictions: [],
+      }).success,
+    ).toBe(true);
     expect(
       artifactInventoryResultSchema.safeParse({
         ...inventory,
diff --git a/src/domain/artifactGraph.ts b/src/domain/artifactGraph.ts
index ef67af6311..da27ad1f72 100644
--- a/src/domain/artifactGraph.ts
+++ b/src/domain/artifactGraph.ts
@@ -203,7 +203,7 @@ export const artifactInventoryResultSchema = z.strictObject({
   occurrences: z.array(artifactOccurrenceSchema),
   edges: z.array(artifactEdgeSchema),
   provenance: z.array(artifactCommandSchema),
-  integrity_contradictions: z.array(integrityContradictionSchema).default([]),
+  integrity_contradictions: z.array(integrityContradictionSchema),
   coverage: artifactInventoryCoverageSchema,
   limitations: z.array(z.string()),
 });
diff --git a/src/domain/browserScenarioCapture.test.ts b/src/domain/browserScenarioCapture.test.ts
index 8c84e978be..fa1dcb743b 100644
--- a/src/domain/browserScenarioCapture.test.ts
+++ b/src/domain/browserScenarioCapture.test.ts
@@ -292,6 +292,7 @@ it("validates reported event limits and omission accounting", () => {
       },
       event_families: ["network"],
       limits: {
+        ...DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS,
         max_total_event_allocation_bytes: 32 * 1024 * 1024,
       },
     },
@@ -350,6 +351,22 @@ it("validates reported event limits and omission accounting", () => {
       },
     }).success,
   ).toBe(false);
+  for (const limits of [
+    {},
+    { max_events: DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS.max_events },
+  ])
+    expect(
+      browserScenarioCaptureSchema.safeParse({
+        ...capture.data,
+        scenario: { ...capture.data.scenario, limits },
+      }).success,
+    ).toBe(false);
+  expect(
+    browserScenarioCaptureSchema.safeParse({
+      ...capture.data,
+      scenario: { ...capture.data.scenario, limits: undefined },
+    }).success,
+  ).toBe(false);
 });
 
 it("derives equality eligibility from exact completeness state", () => {
diff --git a/src/domain/browserScenarioCapture.ts b/src/domain/browserScenarioCapture.ts
index 088817c5f8..4c591342cb 100644
--- a/src/domain/browserScenarioCapture.ts
+++ b/src/domain/browserScenarioCapture.ts
@@ -1,6 +1,6 @@
 import { z } from "zod";
 import { browserNetworkContentSelectionValuesSchema } from "./browserNetworkEvidence.js";
-import { browserScenarioCaptureLimitsSchema } from "./browserScenarioCaptureLimits.js";
+import { browserScenarioCaptureLimitsValuesSchema } from "./browserScenarioCaptureLimits.js";
 
 import {
   browserScenarioCompletenessSchema,
@@ -26,7 +26,7 @@ export const browserScenarioCaptureSchema = z
       secret_references: z.array(z.string().min(1)),
       network_content: browserNetworkContentSelectionValuesSchema,
       event_families: z.array(browserScenarioEventFamilySchema),
-      limits: browserScenarioCaptureLimitsSchema,
+      limits: browserScenarioCaptureLimitsValuesSchema,
     }),
     duration_ms: z.number().int().min(0),
     steps: z.array(browserScenarioStepSchema).min(1),
diff --git a/src/domain/browserScenarioCaptureLimits.ts b/src/domain/browserScenarioCaptureLimits.ts
index 316c87ceb5..60b9d4052f 100644
--- a/src/domain/browserScenarioCaptureLimits.ts
+++ b/src/domain/browserScenarioCaptureLimits.ts
@@ -14,33 +14,54 @@ export const DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS = {
 } as const;
 
 /** Caller-selected retained-output budgets; byte values are allocation-cost estimates. */
-export const browserScenarioCaptureLimitsSchema = z.strictObject({
-  max_events: positiveSafeInteger.default(
-    DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS.max_events,
-  ),
-  max_event_allocation_bytes: positiveSafeInteger.default(
-    DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS.max_event_allocation_bytes,
-  ),
-  max_total_event_allocation_bytes: positiveSafeInteger.default(
-    DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS.max_total_event_allocation_bytes,
-  ),
-  max_network_transactions: positiveSafeInteger.default(
-    DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS.max_network_transactions,
-  ),
-  max_network_body_bytes: positiveSafeInteger.default(
-    DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS.max_network_body_bytes,
-  ),
-  max_network_body_allocation_bytes: positiveSafeInteger.default(
-    DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS.max_network_body_allocation_bytes,
-  ),
-  max_network_header_allocation_bytes: positiveSafeInteger.default(
-    DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS.max_network_header_allocation_bytes,
-  ),
-  max_network_metadata_allocation_bytes: positiveSafeInteger.default(
-    DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS.max_network_metadata_allocation_bytes,
-  ),
+export const browserScenarioCaptureLimitsValuesSchema = z.strictObject({
+  max_events: positiveSafeInteger,
+  max_event_allocation_bytes: positiveSafeInteger,
+  max_total_event_allocation_bytes: positiveSafeInteger,
+  max_network_transactions: positiveSafeInteger,
+  max_network_body_bytes: positiveSafeInteger,
+  max_network_body_allocation_bytes: positiveSafeInteger,
+  max_network_header_allocation_bytes: positiveSafeInteger,
+  max_network_metadata_allocation_bytes: positiveSafeInteger,
 });
 
+/** Input budgets default omitted values; output evidence uses the values schema above. */
+export const browserScenarioCaptureLimitsSchema =
+  browserScenarioCaptureLimitsValuesSchema.extend({
+    max_events:
+      browserScenarioCaptureLimitsValuesSchema.shape.max_events.default(
+        DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS.max_events,
+      ),
+    max_event_allocation_bytes:
+      browserScenarioCaptureLimitsValuesSchema.shape.max_event_allocation_bytes.default(
+        DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS.max_event_allocation_bytes,
+      ),
+    max_total_event_allocation_bytes:
+      browserScenarioCaptureLimitsValuesSchema.shape.max_total_event_allocation_bytes.default(
+        DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS.max_total_event_allocation_bytes,
+      ),
+    max_network_transactions:
+      browserScenarioCaptureLimitsValuesSchema.shape.max_network_transactions.default(
+        DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS.max_network_transactions,
+      ),
+    max_network_body_bytes:
+      browserScenarioCaptureLimitsValuesSchema.shape.max_network_body_bytes.default(
+        DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS.max_network_body_bytes,
+      ),
+    max_network_body_allocation_bytes:
+      browserScenarioCaptureLimitsValuesSchema.shape.max_network_body_allocation_bytes.default(
+        DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS.max_network_body_allocation_bytes,
+      ),
+    max_network_header_allocation_bytes:
+      browserScenarioCaptureLimitsValuesSchema.shape.max_network_header_allocation_bytes.default(
+        DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS.max_network_header_allocation_bytes,
+      ),
+    max_network_metadata_allocation_bytes:
+      browserScenarioCaptureLimitsValuesSchema.shape.max_network_metadata_allocation_bytes.default(
+        DEFAULT_BROWSER_SCENARIO_CAPTURE_LIMITS.max_network_metadata_allocation_bytes,
+      ),
+  });
+
 export type BrowserScenarioCaptureLimits = z.infer<
-  typeof browserScenarioCaptureLimitsSchema
+  typeof browserScenarioCaptureLimitsValuesSchema
 >;