diff --git a/apps/server/src/provider/Layers/ClaudeAdapter.test.ts b/apps/server/src/provider/Layers/ClaudeAdapter.test.ts
index 5c45013f8d..f9f57c8ef6 100644
--- a/apps/server/src/provider/Layers/ClaudeAdapter.test.ts
+++ b/apps/server/src/provider/Layers/ClaudeAdapter.test.ts
@@ -299,7 +299,7 @@ describe("ClaudeAdapterLive", () => {
 
       const createInput = harness.getLastCreateQueryInput();
       assert.deepEqual(createInput?.options.settingSources, ["user", "project", "local"]);
-      assert.equal(createInput?.options.permissionMode, undefined);
+      assert.equal(createInput?.options.permissionMode, "default");
       assert.equal(createInput?.options.allowDangerouslySkipPermissions, undefined);
     }).pipe(
       Effect.provideService(Random.Random, makeDeterministicRandomService()),
diff --git a/apps/server/src/provider/Layers/ClaudeAdapter.ts b/apps/server/src/provider/Layers/ClaudeAdapter.ts
index fb32da78c5..4a04a7654b 100644
--- a/apps/server/src/provider/Layers/ClaudeAdapter.ts
+++ b/apps/server/src/provider/Layers/ClaudeAdapter.ts
@@ -39,6 +39,7 @@ import {
   TurnId,
   type UserInputQuestion,
   ClaudeCodeEffort,
+  RuntimeMode,
 } from "@t3tools/contracts";
 import {
   applyClaudePromptEffortPrefix,
@@ -2693,7 +2694,8 @@ const makeClaudeAdapter = Effect.fn("makeClaudeAdapter")(function* (
           ? modelSelection.options.thinking
           : undefined;
       const effectiveEffort = getEffectiveClaudeCodeEffort(effort);
-      const runtimeModeToPermission: Record<string, PermissionMode> = {
+      const runtimeModeToPermission: Record<RuntimeMode, PermissionMode> = {
+        "approval-required": "default",
         "auto-accept-edits": "acceptEdits",
         "full-access": "bypassPermissions",
       };
@@ -2709,7 +2711,7 @@ const makeClaudeAdapter = Effect.fn("makeClaudeAdapter")(function* (
         pathToClaudeCodeExecutable: claudeBinaryPath,
         settingSources: [...CLAUDE_SETTING_SOURCES],
         ...(effectiveEffort ? { effort: effectiveEffort } : {}),
-        ...(permissionMode ? { permissionMode } : {}),
+        permissionMode,
         ...(permissionMode === "bypassPermissions"
           ? { allowDangerouslySkipPermissions: true }
           : {}),