ExitPlanMode terminates the current SDK turn — no tool execution possible after exiting plan mode #774
Description
Issue Description
When using ClaudeSDKClient with permission_mode="bypassPermissions", calling ExitPlanMode terminates the current query/turn immediately. No further tool calls execute after ExitPlanMode within the same turn — the ResultMessage is emitted and receive_messages() completes.
This means any workflow that enters plan mode, gets user approval, exits plan mode, and then executes actions (Agent dispatch, Bash, Write, etc.) requires a separate follow-up turn after ExitPlanMode. The model cannot complete a plan-then-execute workflow in a single turn.
Reproduction
from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions, HookMatcher
options = ClaudeAgentOptions(
cwd="/some/project",
permission_mode="bypassPermissions",
hooks={
"PreToolUse": [
HookMatcher(
matcher="AskUserQuestion",
hooks=[ask_hook], # hook that denies + injects answer
),
],
},
)
client = ClaudeSDKClient(options=options)
await client.connect()
await client.query("""Do these steps in order:
1. Call EnterPlanMode
2. Read a file
3. Ask user for approval via AskUserQuestion
4. Call ExitPlanMode
5. Run: echo HELLO via Bash
""")
# Collect all tool calls
tools = []
async for msg in client.receive_messages():
# ... collect tool names from AssistantMessage blocksObserved tool sequence:
['ToolSearch', 'EnterPlanMode', 'Read', 'AskUserQuestion', 'ToolSearch', 'ExitPlanMode']
Step 5 (Bash) never executes. The turn completes immediately after ExitPlanMode.
Expected tool sequence:
['ToolSearch', 'EnterPlanMode', 'Read', 'AskUserQuestion', 'ToolSearch', 'ExitPlanMode', 'Bash']
All 5 steps should complete in a single turn.
Workaround
Send a follow-up query() after the turn completes to continue execution post-plan-mode. This works but requires the caller to detect the plan mode exit and re-prompt.
Environment
claude-agent-sdk==0.1.52- Claude CLI 2.1.86
permission_mode="bypassPermissions"- Python 3.12, Linux (Docker)
Impact
This affects any SDK-based automation that uses plan mode as part of a multi-step workflow (e.g., design orchestrators that plan architecture then dispatch implementation agents). The plan-then-execute pattern is broken in a single turn.