diff --git a/packages/paperclip-runner/src/contracts/native-execution.test.ts b/packages/paperclip-runner/src/contracts/native-execution.test.ts
index 615101b0e28..e2f3075dc15 100644
--- a/packages/paperclip-runner/src/contracts/native-execution.test.ts
+++ b/packages/paperclip-runner/src/contracts/native-execution.test.ts
@@ -1,6 +1,7 @@
 import { nativeTaskConstraints } from "../backends/runtime-context.js";
 import { createHash } from "node:crypto";
 import { QUALIFIED_ACPX_PROFILES } from "../drivers/acpx/qualified-profiles.js";
+import { QUALIFIED_ACPX_VERSION } from "../drivers/acpx/generated-profiles.js";
 import { describe, expect, it } from "vitest";
 
 import { buildNativeModelEnvelope, parseNativeExecutionInput, NATIVE_EXECUTION_INPUT_SCHEMA, NATIVE_EXECUTION_INPUT_SCHEMA_V6, NATIVE_EXECUTION_INPUT_SCHEMA_V7, NATIVE_EXECUTION_INPUT_SCHEMA_V9, NATIVE_EXECUTION_INPUT_SCHEMA_V10, type NativeExecutionInputV1 } from "./native-execution.js";
@@ -450,6 +451,37 @@ describe("NativeExecutionInputV1", () => {
     expect(parseNativeExecutionInput(parsed)).toEqual(parsed);
   });
 
+  it("decodes a Claude input saved under ACPX 0.13.1 as the current qualified profile", () => {
+    const savedProfile = {
+      agent: "claude",
+      driverKind: "acpx_runtime",
+      acpxVersion: "0.13.1",
+      commandDigest: "sha256:9d73d1f0f121fb96cc8badb28c22d5bff02d8582eb2e40360a81c189e1b9422a",
+      protocolVersion: 1,
+      agentServerPackage: "@agentclientprotocol/claude-agent-acp",
+      agentServerVersion: "0.73.0",
+      agentProfileVersion: 1,
+      agentRuntimePackage: "@anthropic-ai/claude-agent-sdk",
+      agentRuntimeVersion: "0.3.286",
+    };
+    const saved = {
+      ...input,
+      session: { ...input.session, driverKind: "acpx_runtime" },
+      provider: {
+        kind: "acpx", agent: "claude", model: "claude-opus-5-5",
+        permissionPolicy: "interactive", profile: savedProfile,
+      },
+    };
+    const parsed = parseNativeExecutionInput(saved);
+    expect(parsed.provider).toEqual({ ...saved.provider, profile: { ...savedProfile, acpxVersion: QUALIFIED_ACPX_VERSION } });
+    expect(parseNativeExecutionInput(parsed)).toEqual(parsed);
+    for (const acpxVersion of ["0.13.0", "0.21.9", "0.23.0", "", null, 13]) {
+      expect(() => parseNativeExecutionInput({
+        ...saved, provider: { ...saved.provider, profile: { ...savedProfile, acpxVersion } },
+      })).toThrow("qualified ACPX v1 profile");
+    }
+  });
+
   it.each([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40] as const)("decodes closed Copilot profile history at version %s without admitting a future version", (agentProfileVersion) => {
     const { permissionPolicy, qualificationStatus: _qualificationStatus, ...snapshot } = QUALIFIED_ACPX_PROFILES.copilot;
     const provider = {
diff --git a/packages/paperclip-runner/src/contracts/native-execution.ts b/packages/paperclip-runner/src/contracts/native-execution.ts
index 4ce817b79d5..68fbd3628b8 100644
--- a/packages/paperclip-runner/src/contracts/native-execution.ts
+++ b/packages/paperclip-runner/src/contracts/native-execution.ts
@@ -4,7 +4,7 @@ import { resolveGrokEffort } from "../drivers/acpx/grok-effort.js";
 import { resolveClaudeEffort } from "../drivers/acpx/claude-effort.js";
 import type { DotBindingSnapshot, MuseBindingSnapshot, ExternalBotProviderKind } from "./external-provider.js";
 import { QUALIFIED_ACPX_VERSION, QUALIFIED_ACPX_PROFILE_DATA } from "../drivers/acpx/generated-profiles.js";
-import { isSupportedAcpxProfileVersion, type AcpxProfileVersion } from "../drivers/acpx/profile-compatibility.js";
+import { isDecodableAcpxVersion, isSupportedAcpxProfileVersion, type AcpxProfileVersion } from "../drivers/acpx/profile-compatibility.js";
 import { isProviderMode } from "./provider-mode.js";
 import { createHash } from "node:crypto";
 import type { PrpStructuredRunResult, PrpTerminalState } from "../protocol/replay-contract.js";
@@ -754,7 +754,7 @@ export function parseNativeExecutionInput(value: unknown): NativeExecutionInput
     if (
       profile.driverKind !== "acpx_runtime"
       || profile.protocolVersion !== 1
-      || profile.acpxVersion !== QUALIFIED_ACPX_VERSION
+      || !isDecodableAcpxVersion(profile.acpxVersion)
       || profile.agent !== provider.agent
       || !isSupportedAcpxProfileVersion(provider.agent, profile.agentProfileVersion)
     ) {
diff --git a/packages/paperclip-runner/src/drivers/acpx/profile-compatibility.ts b/packages/paperclip-runner/src/drivers/acpx/profile-compatibility.ts
index 2ec9855435d..22f4300e332 100644
--- a/packages/paperclip-runner/src/drivers/acpx/profile-compatibility.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/profile-compatibility.ts
@@ -1,4 +1,4 @@
-import { QUALIFIED_ACPX_PROFILE_DATA } from "./generated-profiles.js";
+import { QUALIFIED_ACPX_PROFILE_DATA, QUALIFIED_ACPX_VERSION } from "./generated-profiles.js";
 
 /** Decodable profile revisions, not permission to launch them.
  * Exact current profile/package/digest admission is checked separately.
@@ -15,3 +15,9 @@ export function isSupportedAcpxProfileVersion(agent: string, value: unknown): va
   const latest = Math.max(current, Object.hasOwn(RETAINED_THROUGH, agent) ? RETAINED_THROUGH[agent]! : 0);
   return (value as number) >= 1 && (value as number) <= latest;
 }
+
+const DECODABLE_ACPX_VERSIONS: ReadonlySet<unknown> = new Set(["0.13.1", QUALIFIED_ACPX_VERSION]);
+
+export function isDecodableAcpxVersion(value: unknown): boolean {
+  return DECODABLE_ACPX_VERSIONS.has(value);
+}