diff --git a/src/contracts/managed/managedWorkflowToolContracts.ts b/src/contracts/managed/managedWorkflowToolContracts.ts
index 3fcdbae938..28406c42dd 100644
--- a/src/contracts/managed/managedWorkflowToolContracts.ts
+++ b/src/contracts/managed/managedWorkflowToolContracts.ts
@@ -1,5 +1,6 @@
 import { z } from "zod";
 import { evidenceSchema } from "../../domain/evidence.js";
+import { compareManagedMembersInputSchema } from "../../domain/managed/managedMemberComparison.js";
 import { managedNativeVerificationInputSchema } from "../../domain/managed/managedNativeVerificationSchemas.js";
 
 import { managedReconstructionImportInputSchema } from "../../domain/managed/managedReconstruction.js";
@@ -14,31 +15,13 @@ import {
 import { toolContractMetadata } from "../toolEffects.js";
 import { requireOutputSchema } from "../toolOutputSchemaPrimitives.js";
 
-/** Inputs for comparing two managed observations carried inline. */
-export const compareManagedMembersReferenceInputSchema = z
-  .strictObject({
-    left: evidenceSchema,
-    right: evidenceSchema,
-  })
-  .superRefine((input, context) => {
-    if (input.left.evidence_id === input.right.evidence_id)
-      context.addIssue({
-        code: "custom",
-        path: ["right"],
-        message: "Managed member Evidence must be distinct",
-      });
-  });
-
 /** Inline Evidence input for importing reconstruction. */
 export const managedReconstructionReferenceInputSchema =
   managedReconstructionImportInputSchema.extend({
     static_members: evidenceSchema,
   });
 
-const managedApplicationGraphReferenceFacts = {} as const;
-
 const managedApplicationGraphReferenceShape = z.strictObject({
-  ...managedApplicationGraphReferenceFacts,
   managed_artifact: evidenceSchema.optional(),
   managed_members: evidenceSchema.optional(),
   managed_native_boundaries: evidenceSchema.optional(),
@@ -100,7 +83,7 @@ export const MANAGED_WORKFLOW_TOOL_CONTRACTS = [
     description:
       "Compare two authenticated inspect_managed_members Evidence records using unique-only tiers: exact declared type, name, and CIL/signature; exact declared type, name, and signature (decoded or not); exact declared type, name, and decoded structural method shape; then exact CIL/signature or decoded structural method shape alone, which never takes a member whose own declared type and name remain unpaired on the other side or whose declaring type is unresolved. Signatures compare type operands by name, not by build-local metadata row. Names alone are never a matching basis; a member whose signature was not decoded, or whose same-named counterpart's was not, stays unknown rather than added or removed. Metadata tokens remain build-local coordinates bound to each artifact SHA-256 and MVID, and the tuple digest does not itself remap them.",
     kind: "application",
-    inputSchema: compareManagedMembersReferenceInputSchema,
+    inputSchema: compareManagedMembersInputSchema,
     outputSchema: comparisonOutputSchema,
     examples: [
       {
diff --git a/src/contracts/workflowInputContracts.test.ts b/src/contracts/workflowInputContracts.test.ts
index 237469487a..196918a22f 100644
--- a/src/contracts/workflowInputContracts.test.ts
+++ b/src/contracts/workflowInputContracts.test.ts
@@ -11,10 +11,7 @@ import {
   MANAGED_MEMBER_COMPARISON_EXAMPLE,
   MANAGED_NATIVE_VERIFICATION_EXAMPLE,
 } from "./managed/managedWorkflowExamples.js";
-import {
-  compareManagedMembersReferenceInputSchema,
-  managedApplicationGraphReferenceInputSchema,
-} from "./managed/managedWorkflowToolContracts.js";
+import { managedApplicationGraphReferenceInputSchema } from "./managed/managedWorkflowToolContracts.js";
 
 describe("workflow input contracts", () => {
   it("rejects application Evidence ID references and duplicate inline records", () => {
@@ -38,7 +35,7 @@ describe("workflow input contracts", () => {
 
   it("rejects duplicate inline managed Evidence records", () => {
     expect(
-      compareManagedMembersReferenceInputSchema.safeParse({
+      toolContract("compare_managed_members").inputSchema.safeParse({
         left: MANAGED_MEMBER_COMPARISON_EXAMPLE.left,
         right: MANAGED_MEMBER_COMPARISON_EXAMPLE.left,
       }).success,