diff --git a/src/acp/control-plane/manager.core.ts b/src/acp/control-plane/manager.core.ts
index 4d45a7693a9..8c4822d46a6 100644
--- a/src/acp/control-plane/manager.core.ts
+++ b/src/acp/control-plane/manager.core.ts
@@ -49,7 +49,9 @@ import {
   normalizeAcpErrorCode,
   normalizeActorKey,
   normalizeSessionKey,
+  requireReadySessionMeta,
   resolveAcpAgentFromSessionKey,
+  resolveAcpSessionResolutionError,
   resolveMissingMetaError,
   resolveRuntimeIdleTtlMs,
 } from "./manager.utils.js";
@@ -332,15 +334,7 @@ export class AcpSessionManager {
           cfg: params.cfg,
           sessionKey,
         });
-        if (resolution.kind === "none") {
-          throw new AcpRuntimeError(
-            "ACP_SESSION_INIT_FAILED",
-            `Session is not ACP-enabled: ${sessionKey}`,
-          );
-        }
-        if (resolution.kind === "stale") {
-          throw resolution.error;
-        }
+        const resolvedMeta = requireReadySessionMeta(resolution);
         const {
           runtime,
           handle: ensuredHandle,
@@ -348,7 +342,7 @@ export class AcpSessionManager {
         } = await this.ensureRuntimeHandle({
           cfg: params.cfg,
           sessionKey,
-          meta: resolution.meta,
+          meta: resolvedMeta,
         });
         let handle = ensuredHandle;
         let meta = ensuredMeta;
@@ -414,19 +408,11 @@ export class AcpSessionManager {
         cfg: params.cfg,
         sessionKey,
       });
-      if (resolution.kind === "none") {
-        throw new AcpRuntimeError(
-          "ACP_SESSION_INIT_FAILED",
-          `Session is not ACP-enabled: ${sessionKey}`,
-        );
-      }
-      if (resolution.kind === "stale") {
-        throw resolution.error;
-      }
+      const resolvedMeta = requireReadySessionMeta(resolution);
       const { runtime, handle, meta } = await this.ensureRuntimeHandle({
         cfg: params.cfg,
         sessionKey,
-        meta: resolution.meta,
+        meta: resolvedMeta,
       });
       const capabilities = await this.resolveRuntimeCapabilities({ runtime, handle });
       if (!capabilities.controls.includes("session/set_mode") || !runtime.setMode) {
@@ -479,19 +465,11 @@ export class AcpSessionManager {
         cfg: params.cfg,
         sessionKey,
       });
-      if (resolution.kind === "none") {
-        throw new AcpRuntimeError(
-          "ACP_SESSION_INIT_FAILED",
-          `Session is not ACP-enabled: ${sessionKey}`,
-        );
-      }
-      if (resolution.kind === "stale") {
-        throw resolution.error;
-      }
+      const resolvedMeta = requireReadySessionMeta(resolution);
       const { runtime, handle, meta } = await this.ensureRuntimeHandle({
         cfg: params.cfg,
         sessionKey,
-        meta: resolution.meta,
+        meta: resolvedMeta,
       });
       const inferredPatch = inferRuntimeOptionPatchFromConfigOption(key, value);
       const capabilities = await this.resolveRuntimeCapabilities({ runtime, handle });
@@ -558,17 +536,9 @@ export class AcpSessionManager {
         cfg: params.cfg,
         sessionKey,
       });
-      if (resolution.kind === "none") {
-        throw new AcpRuntimeError(
-          "ACP_SESSION_INIT_FAILED",
-          `Session is not ACP-enabled: ${sessionKey}`,
-        );
-      }
-      if (resolution.kind === "stale") {
-        throw resolution.error;
-      }
+      const resolvedMeta = requireReadySessionMeta(resolution);
       const nextOptions = mergeRuntimeOptions({
-        current: resolveRuntimeOptionsFromMeta(resolution.meta),
+        current: resolveRuntimeOptionsFromMeta(resolvedMeta),
         patch: validatedPatch,
       });
       await this.persistRuntimeOptions({
@@ -594,19 +564,11 @@ export class AcpSessionManager {
         cfg: params.cfg,
         sessionKey,
       });
-      if (resolution.kind === "none") {
-        throw new AcpRuntimeError(
-          "ACP_SESSION_INIT_FAILED",
-          `Session is not ACP-enabled: ${sessionKey}`,
-        );
-      }
-      if (resolution.kind === "stale") {
-        throw resolution.error;
-      }
+      const resolvedMeta = requireReadySessionMeta(resolution);
       const { runtime, handle } = await this.ensureRuntimeHandle({
         cfg: params.cfg,
         sessionKey,
-        meta: resolution.meta,
+        meta: resolvedMeta,
       });
       await withAcpRuntimeErrorBoundary({
         run: async () =>
@@ -638,15 +600,7 @@ export class AcpSessionManager {
         cfg: input.cfg,
         sessionKey,
       });
-      if (resolution.kind === "none") {
-        throw new AcpRuntimeError(
-          "ACP_SESSION_INIT_FAILED",
-          `Session is not ACP-enabled: ${sessionKey}`,
-        );
-      }
-      if (resolution.kind === "stale") {
-        throw resolution.error;
-      }
+      const resolvedMeta = requireReadySessionMeta(resolution);
 
       const {
         runtime,
@@ -655,7 +609,7 @@ export class AcpSessionManager {
       } = await this.ensureRuntimeHandle({
         cfg: input.cfg,
         sessionKey,
-        meta: resolution.meta,
+        meta: resolvedMeta,
       });
       let handle = ensuredHandle;
       const meta = ensuredMeta;
@@ -810,19 +764,11 @@ export class AcpSessionManager {
         cfg: params.cfg,
         sessionKey,
       });
-      if (resolution.kind === "none") {
-        throw new AcpRuntimeError(
-          "ACP_SESSION_INIT_FAILED",
-          `Session is not ACP-enabled: ${sessionKey}`,
-        );
-      }
-      if (resolution.kind === "stale") {
-        throw resolution.error;
-      }
+      const resolvedMeta = requireReadySessionMeta(resolution);
       const { runtime, handle } = await this.ensureRuntimeHandle({
         cfg: params.cfg,
         sessionKey,
-        meta: resolution.meta,
+        meta: resolvedMeta,
       });
       try {
         await withAcpRuntimeErrorBoundary({
@@ -868,27 +814,17 @@ export class AcpSessionManager {
         cfg: input.cfg,
         sessionKey,
       });
-      if (resolution.kind === "none") {
+      const resolutionError = resolveAcpSessionResolutionError(resolution);
+      if (resolutionError) {
         if (input.requireAcpSession ?? true) {
-          throw new AcpRuntimeError(
-            "ACP_SESSION_INIT_FAILED",
-            `Session is not ACP-enabled: ${sessionKey}`,
-          );
-        }
-        return {
-          runtimeClosed: false,
-          metaCleared: false,
-        };
-      }
-      if (resolution.kind === "stale") {
-        if (input.requireAcpSession ?? true) {
-          throw resolution.error;
+          throw resolutionError;
         }
         return {
           runtimeClosed: false,
           metaCleared: false,
         };
       }
+      const meta = resolution.meta;
 
       let runtimeClosed = false;
       let runtimeNotice: string | undefined;
@@ -896,7 +832,7 @@ export class AcpSessionManager {
         const { runtime, handle } = await this.ensureRuntimeHandle({
           cfg: input.cfg,
           sessionKey,
-          meta: resolution.meta,
+          meta,
         });
         await withAcpRuntimeErrorBoundary({
           run: async () =>
diff --git a/src/acp/control-plane/manager.utils.ts b/src/acp/control-plane/manager.utils.ts
index 3b6b2dacc45..8360f9bfb8a 100644
--- a/src/acp/control-plane/manager.utils.ts
+++ b/src/acp/control-plane/manager.utils.ts
@@ -2,6 +2,7 @@ import type { OpenClawConfig } from "../../config/config.js";
 import type { SessionAcpMeta } from "../../config/sessions/types.js";
 import { normalizeAgentId, parseAgentSessionKey } from "../../routing/session-key.js";
 import { ACP_ERROR_CODES, AcpRuntimeError } from "../runtime/errors.js";
+import type { AcpSessionResolution } from "./manager.types.js";
 
 export function resolveAcpAgentFromSessionKey(sessionKey: string, fallback = "main"): string {
   const parsed = parseAgentSessionKey(sessionKey);
@@ -15,6 +16,29 @@ export function resolveMissingMetaError(sessionKey: string): AcpRuntimeError {
   );
 }
 
+export function resolveAcpSessionResolutionError(
+  resolution: AcpSessionResolution,
+): AcpRuntimeError | null {
+  if (resolution.kind === "ready") {
+    return null;
+  }
+  if (resolution.kind === "stale") {
+    return resolution.error;
+  }
+  return new AcpRuntimeError(
+    "ACP_SESSION_INIT_FAILED",
+    `Session is not ACP-enabled: ${resolution.sessionKey}`,
+  );
+}
+
+export function requireReadySessionMeta(resolution: AcpSessionResolution): SessionAcpMeta {
+  const error = resolveAcpSessionResolutionError(resolution);
+  if (error) {
+    throw error;
+  }
+  return resolution.meta;
+}
+
 export function normalizeSessionKey(sessionKey: string): string {
   return sessionKey.trim();
 }
diff --git a/src/auto-reply/reply/commands-acp/lifecycle.ts b/src/auto-reply/reply/commands-acp/lifecycle.ts
index 43896f3ada3..564788f78d7 100644
--- a/src/auto-reply/reply/commands-acp/lifecycle.ts
+++ b/src/auto-reply/reply/commands-acp/lifecycle.ts
@@ -1,5 +1,6 @@
 import { randomUUID } from "node:crypto";
 import { getAcpSessionManager } from "../../../acp/control-plane/manager.js";
+import { resolveAcpSessionResolutionError } from "../../../acp/control-plane/manager.utils.js";
 import {
   cleanupFailedAcpSpawn,
   type AcpSpawnRuntimeCloseHandle,
@@ -10,7 +11,6 @@ import {
   resolveAcpDispatchPolicyError,
   resolveAcpDispatchPolicyMessage,
 } from "../../../acp/policy.js";
-import { AcpRuntimeError } from "../../../acp/runtime/errors.js";
 import {
   resolveAcpSessionCwd,
   resolveAcpThreadSessionDetailLines,
@@ -390,24 +390,13 @@ function resolveAcpSessionForCommandOrStop(params: {
     cfg: params.cfg,
     sessionKey: params.sessionKey,
   });
-  if (resolved.kind === "none") {
+  const error = resolveAcpSessionResolutionError(resolved);
+  if (error) {
     return stopWithText(
       collectAcpErrorText({
-        error: new AcpRuntimeError(
-          "ACP_SESSION_INIT_FAILED",
-          `Session is not ACP-enabled: ${params.sessionKey}`,
-        ),
+        error,
         fallbackCode: "ACP_SESSION_INIT_FAILED",
-        fallbackMessage: "Session is not ACP-enabled.",
-      }),
-    );
-  }
-  if (resolved.kind === "stale") {
-    return stopWithText(
-      collectAcpErrorText({
-        error: resolved.error,
-        fallbackCode: "ACP_SESSION_INIT_FAILED",
-        fallbackMessage: resolved.error.message,
+        fallbackMessage: error.message,
       }),
     );
   }