Sub Agent Limit Bug - codex plugin in vs code
OpenAI Developer Community
May 21, 2026
Yeah, its often not closing the “thread handles” on subagents Try telling codex to always close thread handles for subagents after they are done when you ask it to use subagents (or perhaps try in custom instructions, I didnt try that yet) Otherwise it just keeps spawning more, while not all are closed
Or after the first turn of using them, ask it to check if some subagent thread handles are still not closed and to close them
It seems it still needs some help with these
Also these are default
multi_agent = true
there is also under development
multi_agent_v2 = true
Actually still didnt try v2 There isnt exactly an explanation/documentation on it yet it seems Just have to use ChatGPT/codex to check their repo and explain the v2
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