diff --git a/packages/squad-cli/src/cli/shell/index.ts b/packages/squad-cli/src/cli/shell/index.ts
index 251da8249..775b3c31b 100644
--- a/packages/squad-cli/src/cli/shell/index.ts
+++ b/packages/squad-cli/src/cli/shell/index.ts
@@ -87,7 +87,7 @@ const storage = new FSStorageProvider();
  * Approve all permission requests. CLI runs locally with user trust,
  * so no interactive confirmation is needed.
  */
-const approveAllPermissions: SquadPermissionHandler = () => ({ kind: 'approved' });
+const approveAllPermissions: SquadPermissionHandler = () => ({ kind: 'approve-once' });
 
 /** Debug logger — writes to stderr only when SQUAD_DEBUG=1. */
 function debugLog(...args: unknown[]): void {
diff --git a/packages/squad-sdk/src/adapter/client.ts b/packages/squad-sdk/src/adapter/client.ts
index 6f654e5f7..d508417c9 100644
--- a/packages/squad-sdk/src/adapter/client.ts
+++ b/packages/squad-sdk/src/adapter/client.ts
@@ -505,7 +505,7 @@ export class SquadClient {
         if (msg.includes('onPermissionRequest')) {
           throw new Error(
             'Session creation failed: an onPermissionRequest handler is required. ' +
-            'Pass { onPermissionRequest: () => ({ kind: "approved" }) } in your session config ' +
+            'Pass { onPermissionRequest: () => ({ kind: "approve-once" }) } in your session config ' +
             'to approve all permissions, or provide a custom handler.'
           );
         }
diff --git a/packages/squad-sdk/src/adapter/types.ts b/packages/squad-sdk/src/adapter/types.ts
index 8dc73dade..900a61e99 100644
--- a/packages/squad-sdk/src/adapter/types.ts
+++ b/packages/squad-sdk/src/adapter/types.ts
@@ -588,17 +588,17 @@ export interface SquadPermissionRequest {
 
 /**
  * Result of a permission request.
- */
-export interface SquadPermissionRequestResult {
-  /** Outcome of the permission request */
-  kind:
-    | "approved"
-    | "denied-by-rules"
-    | "denied-no-approval-rule-and-could-not-request-from-user"
-    | "denied-interactively-by-user";
-  /** Rules that influenced the decision */
-  rules?: unknown[];
-}
+ *
+ * Mirrors Copilot SDK PermissionDecision semantics (v1.0.54+).
+ */
+export type SquadPermissionRequestResult =
+  | { kind: "approve-once" }
+  | { kind: "approve-for-session"; approval?: unknown; domain?: string }
+  | { kind: "approve-for-location"; approval: unknown; locationKey: string }
+  | { kind: "approve-permanently"; domain: string }
+  | { kind: "reject"; feedback?: string }
+  | { kind: "user-not-available" }
+  | { kind: "no-result" };
 
 /**
  * Handler for permission requests from the agent.
diff --git a/test/adapter-client.test.ts b/test/adapter-client.test.ts
index b2efe2415..255a9d369 100644
--- a/test/adapter-client.test.ts
+++ b/test/adapter-client.test.ts
@@ -286,6 +286,18 @@ describe('SquadClient — Auto-Reconnection', () => {
     await expect(client.createSession()).rejects.toThrow('ECONNREFUSED');
   });
 
+  it('should provide approve-once guidance for permission handler errors', async () => {
+    const client = new SquadClient({ autoReconnect: false });
+    await client.connect();
+
+    const MockedCopilotClient = CopilotClient as unknown as ReturnType<typeof vi.fn>;
+    const instance = MockedCopilotClient.mock.results[0].value;
+
+    instance.createSession.mockRejectedValue(new Error('onPermissionRequest is required'));
+
+    await expect(client.createSession()).rejects.toThrow('kind: "approve-once"');
+  });
+
   it('should not auto-reconnect after manual disconnect', async () => {
     const client = new SquadClient({ autoReconnect: true, autoStart: false });
     await client.connect();