fix(types): add missing dontAsk permission mode

src/claude_agent_sdk/_internal/query.py

@@ -15,6 +15,7 @@
 )
 
 from ..types import (
+    PermissionMode,
     PermissionResultAllow,
     PermissionResultDeny,
     SDKControlPermissionRequest,
@@ -569,7 +570,7 @@ async def interrupt(self) -> None:
         """Send interrupt control request."""
         await self._send_control_request({"subtype": "interrupt"})
 
-    async def set_permission_mode(self, mode: str) -> None:
+    async def set_permission_mode(self, mode: PermissionMode) -> None:
         """Change permission mode."""
         await self._send_control_request(
             {

src/claude_agent_sdk/client.py

@@ -14,6 +14,7 @@
     HookMatcher,
     McpStatusResponse,
     Message,
+    PermissionMode,
     ResultMessage,
 )
 
@@ -230,14 +231,16 @@ async def interrupt(self) -> None:
             raise CLIConnectionError("Not connected. Call connect() first.")
         await self._query.interrupt()
 
-    async def set_permission_mode(self, mode: str) -> None:
+    async def set_permission_mode(self, mode: PermissionMode) -> None:
         """Change permission mode during conversation (only works with streaming mode).
 
         Args:
             mode: The permission mode to set. Valid options:
                 - 'default': CLI prompts for dangerous tools
                 - 'acceptEdits': Auto-accept file edits
+                - 'plan': Plan-only mode (no tool execution)
                 - 'bypassPermissions': Allow all tools (use with caution)
+                - 'dontAsk': Allow all tools without prompting
 
         Example:
             ```python

src/claude_agent_sdk/query.py

@@ -55,7 +55,9 @@ async def query(
                  Set options.permission_mode to control tool execution:
                  - 'default': CLI prompts for dangerous tools
                  - 'acceptEdits': Auto-accept file edits
+                 - 'plan': Plan-only mode (no tool execution)
                  - 'bypassPermissions': Allow all tools (use with caution)
+                 - 'dontAsk': Allow all tools without prompting
                  Set options.cwd for working directory.
         transport: Optional transport implementation. If provided, this will be used
                   instead of the default transport selection based on options.

src/claude_agent_sdk/types.py

@@ -15,7 +15,9 @@
     McpServer = Any
 
 # Permission modes
-PermissionMode = Literal["default", "acceptEdits", "plan", "bypassPermissions"]
+PermissionMode = Literal[
+    "default", "acceptEdits", "plan", "bypassPermissions", "dontAsk"
+]
 
 # SDK Beta features - see https://docs.anthropic.com/en/api/beta-headers
 SdkBeta = Literal["context-1m-2025-08-07"]
@@ -1146,8 +1148,7 @@ class SDKControlInitializeRequest(TypedDict):
 
 class SDKControlSetPermissionModeRequest(TypedDict):
     subtype: Literal["set_permission_mode"]
-    # TODO: Add PermissionMode
-    mode: str
+    mode: PermissionMode
 
 
 class SDKHookCallbackRequest(TypedDict):

tests/test_transport.py

@@ -148,6 +148,17 @@ def test_build_command_with_options(self):
         assert "--max-turns" in cmd
         assert "5" in cmd
 
+    def test_build_command_with_dont_ask_permission_mode(self):
+        """Test building CLI command with dontAsk permission mode."""
+        transport = SubprocessCLITransport(
+            prompt="test",
+            options=make_options(permission_mode="dontAsk"),
+        )
+
+        cmd = transport._build_command()
+        assert "--permission-mode" in cmd
+        assert "dontAsk" in cmd
+
     def test_build_command_with_fallback_model(self):
         """Test building CLI command with fallback_model option."""
         transport = SubprocessCLITransport(

tests/test_types.py

@@ -115,6 +115,9 @@ def test_claude_code_options_with_permission_mode(self):
         options_accept = ClaudeAgentOptions(permission_mode="acceptEdits")
         assert options_accept.permission_mode == "acceptEdits"
 
+        options_dont_ask = ClaudeAgentOptions(permission_mode="dontAsk")
+        assert options_dont_ask.permission_mode == "dontAsk"
+
     def test_claude_code_options_with_system_prompt_string(self):
         """Test Options with system prompt as string."""
         options = ClaudeAgentOptions(