Agent Host Bridge timeout - Agent not working (Request ID: a6f91fe2)

[duan_xuan]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Agent Host Bridge timeout - Agent not working (Request ID included)
Request ID: a6f91fe2-f695-42ad-bd56-f68ccbc51550
Timed out waiting for the agent host bridge to register; please retry.
AgentTurnClassifiedError: Timed out waiting for the agent host bridge to register; please retry.
at glo (vscode-file://vscode-app/d:/Downloads/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:8258:107224)
at async X6o._waitForAgentHostBridgeBoundedInner (vscode-file://vscode-app/d:/Downloads/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:17692:4080)
at async X6o._waitForAgentHostBridgeBounded (vscode-file://vscode-app/d:/Downloads/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:17692:3901)
at async X6o._waitForPushRequestContextProviderRegistration (vscode-file://vscode-app/d:/Downloads/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:17692:3506)
at async cRe (vscode-file://vscode-app/d:/Downloads/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:6917:11698)
at async vscode-file://vscode-app/d:/Downloads/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:17692:10623
at async cRe (vscode-file://vscode-app/d:/Downloads/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:6917:11698)
at async X6o.streamFromAgentBackend (vscode-file://vscode-app/d:/Downloads/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:17692:10520)
at async X6o.getAgentStreamResponse (vscode-file://vscode-app/d:/Downloads/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:17692:38915)
at async cDe._submitChatMaybeAbortCurrent (vscode-file://vscode-app/d:/Downloads/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:8230:4412)

Steps to Reproduce

1. Open Cursor IDE.
2. Open any project folder (local, no remote connection).
3. Click the “Agent” mode in the chat panel.
4. Type a message and press Enter.
5. Wait for a moment, the Agent stays on “Planning next moves” and then throws the error: “Timed out waiting for the agent host bridge to register; please retry.”

Operating System

Windows 10/11

Version Information

Cursor Version: 3.21.9 (user setup), OS: Windows, Issue: Agent Host Bridge timeout

Does this stop you from using Cursor

Yes - Cursor is unusable

[Colin]

Hey there.

Could you check to see if you have “Index Repositories for Instant Grep” disabled in your settings, and turn it back on?

Agent Execution Timed Out - All Agents Blocked

Hey @Carl_Hellstrom Thanks for sticking with us. I think we found what is different about your setup, and there is a setting you can check that should get the agent working again. Open Cursor Settings. In the list on the left, click Code Intelligence. (In the classic editor window this tab is called Indexing.) Find the switch labelled “Index Repositories for Instant Grep”. If it is off, turn it on. Cursor will ask to reload the window. Click Reload Window. Open a new agent chat and send the s…

[duan_xuan]

Request ID: d5674cc3-9b8d-46e3-8915-a310843c8e98
Timed out waiting for the agent host bridge to register; please retry.
AgentTurnClassifiedError: Timed out waiting for the agent host bridge to register; please retry.
at blo (vscode-file://vscode-app/c:/Users/dengjy/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:8258:107657)
at async J6o._waitForAgentHostBridgeBoundedInner (vscode-file://vscode-app/c:/Users/dengjy/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:17701:4080)
at async J6o._waitForAgentHostBridgeBounded (vscode-file://vscode-app/c:/Users/dengjy/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:17701:3901)
at async J6o._waitForPushRequestContextProviderRegistration (vscode-file://vscode-app/c:/Users/dengjy/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:17701:3506)
at async cRe (vscode-file://vscode-app/c:/Users/dengjy/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:6917:11698)
at async vscode-file://vscode-app/c:/Users/dengjy/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:17701:10620
at async cRe (vscode-file://vscode-app/c:/Users/dengjy/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:6917:11698)
at async J6o.streamFromAgentBackend (vscode-file://vscode-app/c:/Users/dengjy/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:17701:10517)
at async J6o.getAgentStreamResponse (vscode-file://vscode-app/c:/Users/dengjy/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:17701:38909)
at async lDe._submitChatMaybeAbortCurrent (vscode-file://vscode-app/c:/Users/dengjy/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:8230:4456)，，is error，please，helpe me

[Colin]

Hey @duan_xuan, thanks for the follow-up and the screenshot.

From what we can see, the Agent on your computer started working again on September 23 and has been running normally since then. Can you confirm that on your side?