Where does the bug appear (feature/product)? Cursor IDE Describe the Bug When a model spawns subagents, it doesn’t respect settings that hardcode the subagent model. In my case, I have explicitly set composer-2.5 (without fast mode toggled), but every time a subagent is spawned, it is powered by co…

Hey, thanks for the detailed report. This is a known bug. When you pick composer-2.5 for the explore sub-agent in Settings, the backend still applies the default fast=true, so the sub-agent ends up as composer-2.5-fast. It’s been reported internally, but I can’t share a fix timeline yet. If you def…

Any news on this Dean? Mine was set to composer as well (main agent Grok 4.5) and subagent used Sonnet 4.5 Medium and burned my API tokens. Can you elaborate on defining subagents in .cursor/agents? Mine doesn’t have that folder in .cursor/ Thank you!

Hey, no update on the fix yet. This is still a known bug where a subagent doesn’t respect the selected model variant and switches to fast or picks the wrong model. I can’t share an ETA. Once I have one, I’ll reply in the thread. About .cursor/agents. This folder isn’t created by default, you need t…

Dear Dean, i also got this issue, and config the hooks in subagentStart as your mentioned. However, this seem only affect the ui, which is showing Couldn't startand hook log, but the agent still running. Request ID: cf6bbf09-aea4-46c0-a6a9-d68ffd8cfd19 [image] [image]

Hey, thanks for the report. What you’re describing: subagentStart returns permission: "deny", the UI shows “Couldn’t start” and you can see the hook log, but the subagent still runs anyway (edits MILESTONE-CONTEXT.md, status “Working”). That’s a separate bug from what’s being discussed in this threa…

Just tossing in evidence of the same issue, with the basic explore agent: Mine is set to Luna, but randomly the agent picked Gemini… [Screenshot 2026-07-21 at 9.17.24] [Screenshot 2026-07-21 at 9.21.27]

Hey, thanks for the screenshots. I see what’s going on. The Explore subagent in Settings is set to GPT-5.6 Luna Medium Fast, but the explore task actually ran on Gemini 3 Flash. The built-in Explore picker in Settings not always respecting the selected model is a known bug. I can’t share an ETA for…

Took me a while to find the message :rofl: 3ce45e5f-20cf-403b-8420-924f8b5178de

Hey, thanks, the Request ID is there. I’m still missing two things from my last message: Your Cursor version Help > About Which model the parent agent was set to at the time of the run Once you send those over, we’ll dig in.

Subagent Model Choice Not Respected

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cy_c (cy c) July 20, 2026, 8:08am 13

Dear Dean,

thanks for your reply, the issue here: `subagentStart` Hook Deny Is Not Enforced

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Subagent Model Choice Not Respected

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