-
Notifications
You must be signed in to change notification settings - Fork 12.1k
Multiple sub-agents + typing randomly breaks TUI #21209
Copy link
Copy link
Open
Labels
TUIIssues related to the terminal user interface: text input, menus and dialogs, and terminal displayIssues related to the terminal user interface: text input, menus and dialogs, and terminal displaybugSomething isn't workingSomething isn't workingsubagentIssues involving subagents or multi-agent featuresIssues involving subagents or multi-agent featureswindows-osIssues related to Codex on Windows systemsIssues related to Codex on Windows systems
Description
Metadata
Metadata
Assignees
Labels
TUIIssues related to the terminal user interface: text input, menus and dialogs, and terminal displayIssues related to the terminal user interface: text input, menus and dialogs, and terminal displaybugSomething isn't workingSomething isn't workingsubagentIssues involving subagents or multi-agent featuresIssues involving subagents or multi-agent featureswindows-osIssues related to Codex on Windows systemsIssues related to Codex on Windows systems
Type
Fields
Give feedbackNo fields configured for issues without a type.
What version of Codex CLI is running?
v0.128.0
What subscription do you have?
Pro
Which model were you using?
irrelevant
What platform is your computer?
Windows
What terminal emulator and version are you using (if applicable)?
Windows Terminal
What issue are you seeing?
Codex stopped reacting to any input and updating output in the middle of long multi-agents flow. The cursor is blinking but nothing else works. I can see the progress by resuming the same session in another instance but I it doesn't show sub-agents.
Similar issue happened to me several times previously when I switch to sub-agent, then tried to switch back, started typing "/ag" and tui was blocked the same way.
It doesn't matter how long I wait, it just stays this way forever.
What steps can reproduce the bug?
It just happens randomly. I'm certain that it's threading synchronization issue. It only happens when I run 4+ sub-agents in parallel. Probably it's easier to reproduce if you run 10+ and keep actively switching between them and typing in the main context.
Uploaded thread: 019df509-ba14-7320-97b7-a5e14eb4f5a2
What is the expected behavior?
TUI keeps working without hanging
Additional information
No response