# Composer loses Chat/Agent mode and fails to apply file edits **URL:** \ **Category:** Bug Reports\ **Tags:** composer, chat\ **Created:** [April 17, 2026, 7:05am UTC](https://forum.cursor.com/t/composer-loses-chat-agent-mode-and-fails-to-apply-file-edits/158267 "2026-04-17T07:05:51Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![user342](https://avatars.discourse-cdn.com/v4/letter/u/ebca7d/32.png) [@user342](https://forum.cursor.com/u/user342)\ **Post date:** [April 17, 2026, 7:05am UTC](https://forum.cursor.com/t/composer-loses-chat-agent-mode-and-fails-to-apply-file-edits/158267/1 "2026-04-17T07:05:51Z")
### Where does the bug appear (feature/product)? Cursor IDE ### Describe the Bug Issue Description: I’ve encountered a recurring bug where the Composer (Composer 2) suddenly loses its interactive “Chat/Agent” capabilities. Key Symptoms: Chat UI Breakdown: The input area no longer supports normal dialogue or agent-based commands (as shown in the red box in my screenshot). It seems to fall back to a basic text input or restricted mode. Permission/Operation Failure: The agent explicitly prompts: “Current environment cannot directly modify files” (or in my case: “当前环境无法直接改文件”). workbench.desktop.main.js:65 ERR [Extension Host] [otel.error] {“stack”:“OTLPExporterError: Bad Request\n\tat IncomingMessage. (c:\Users\torsi\AppData\Local\Programs\cursor\resources\app\node\_modules\@opentelemetry\otlp-exporter-base\build\src\transport\http-transport-utils.js:52:31)\n\tat IncomingMessage.emit (node:events:531:35)\n\tat endReadableNT (node:internal/streams/readable:1698:12)\n\tat process.processTicksAndRejections (node:internal/process/task\_queues:89:21)”,“message”:“Bad Request”,“code”:“400”,“name”:“OTLPExporterError”,“data”:“{"error":"Trace spans collection is not enabled for this user"}”} workbench.desktop.main.js:38247 [Extension Host] [otel.error] {“stack”:“OTLPExporterError: Bad Request\n\tat IncomingMessage. (c:\Users\torsi\AppData\Local\Programs\cursor\resources\app\node\_modules\@opentelemetry\otlp-exporter-base\build\src\transport\http-transport-utils.js:52:31)\n\tat IncomingMessage.emit (node:events:531:35)\n\tat endReadableNT (node:internal/streams/readable:1698:12)\n\tat process.processTicksAndRejections (node:internal/process/task\_queues:89:21)”,“message”:“Bad Request”,“code”:“400”,“name”:“OTLPExporterError”,“data”:“{"error":"Trace spans collection is not enabled for this user"}”} workbench.desktop.main.js:65 ERR [Extension Host] [otel.error] {“stack”:“OTLPExporterError: Bad Request\n\tat IncomingMessage. (c:\Users\torsi\AppData\Local\Programs\cursor\resources\app\node\_modules\@opentelemetry\otlp-exporter-base\build\src\transport\http-transport-utils.js:52:31)\n\tat IncomingMessage.emit (node:events:531:35)\n\tat endReadableNT (node:internal/streams/readable:1698:12)\n\tat process.processTicksAndRejections (node:internal/process/task\_queues:89:21)”,“message”:“Bad Request”,“code”:“400”,“name”:“OTLPExporterError”,“data”:“{"error":"Trace spans collection is not enabled for this user"}”} workbench.desktop.main.js:38247 [Extension Host] [otel.error] {“stack”:“OTLPExporterError: Bad Request\n\tat IncomingMessage. (c:\Users\torsi\AppData\Local\Programs\cursor\resources\app\node\_modules\@opentelemetry\otlp-exporter-base\build\src\transport\http-transport-utils.js:52:31)\n\tat IncomingMessage.emit (node:events:531:35)\n\tat endReadableNT (node:internal/streams/readable:1698:12)\n\tat process.processTicksAndRejections (node:internal/process/task\_queues:89:21)”,“message”:“Bad Request”,“code”:“400”,“name”:“OTLPExporterError”,“data”:“{"error":"Trace spans collection is not enabled for this user"}”} workbench.desktop.main.js:65 ERR [Extension Host] [otel.error] {“stack”:“OTLPExporterError: Bad Request\n\tat IncomingMessage. (c:\Users\torsi\AppData\Local\Programs\cursor\resources\app\node\_modules\@opentelemetry\otlp-exporter-base\build\src\transport\http-transport-utils.js:52:31)\n\tat IncomingMessage.emit (node:events:531:35)\n\tat endReadableNT (node:internal/streams/readable:1698:12)\n\tat process.processTicksAndRejections (node:internal/process/task\_queues:89:21)”,“message”:“Bad Request”,“code”:“400”,“name”:“OTLPExporterError”,“data”:“{"error":"Trace spans collection is not enabled for this user"}”} workbench.desktop.main.js:38247 [Extension Host] [otel.error] {“stack”:“OTLPExporterError: Bad Request\n\tat IncomingMessage. (c:\Users\torsi\AppData\Local\Programs\cursor\resources\app\node\_modules\@opentelemetry\otlp-exporter-base\build\src\transport\http-transport-utils.js:52:31)\n\tat IncomingMessage.emit (node:events:531:35)\n\tat endReadableNT (node:internal/streams/readable:1698:12)\n\tat process.processTicksAndRejections (node:internal/process/task\_queues:89:21)”,“message”:“Bad Request”,“code”:“400”,“name”:“OTLPExporterError”,“data”:“{"error":"Trace spans collection is not enabled for this user"}”} workbench.desktop.main.js:65 ERR [Extension Host] [otel.error] {“stack”:“OTLPExporterError: Bad Request\n\tat IncomingMessage. (c:\Users\torsi\AppData\Local\Programs\cursor\resources\app\node\_modules\@opentelemetry\otlp-exporter-base\build\src\transport\http-transport-utils.js:52:31)\n\tat IncomingMessage.emit (node:events:531:35)\n\tat endReadableNT (node:internal/streams/readable:1698:12)\n\tat process.processTicksAndRejections (node:internal/process/task\_queues:89:21)”,“message”:“Bad Request”,“code”:“400”,“name”:“OTLPExporterError”,“data”:“{"error":"Trace spans collection is not enabled for this user"}”} workbench.desktop.main.js:38247 [Extension Host] [otel.error] {“stack”:“OTLPExporterError: Bad Request\n\tat IncomingMessage. (c:\Users\torsi\AppData\Local\Programs\cursor\resources\app\node\_modules\@opentelemetry\otlp-exporter-base\build\src\transport\http-transport-utils.js:52:31)\n\tat IncomingMessage.emit (node:events:531:35)\n\tat endReadableNT (node:internal/streams/readable:1698:12)\n\tat process.processTicksAndRejections (node:internal/process/task\_queues:89:21)”,“message”:“Bad Request”,“code”:“400”,“name”:“OTLPExporterError”,“data”:“{"error":"Trace spans collection is not enabled for this user"}”} workbench.desktop.main.js:65 ERR [Extension Host] [otel.error] {“stack”:“OTLPExporterError: Bad Request\n\tat IncomingMessage. (c:\Users\torsi\AppData\Local\Programs\cursor\resources\app\node\_modules\@opentelemetry\otlp-exporter-base\build\src\transport\http-transport-utils.js:52:31)\n\tat IncomingMessage.emit (node:events:531:35)\n\tat endReadableNT (node:internal/streams/readable:1698:12)\n\tat process.processTicksAndRejections (node:internal/process/task\_queues:89:21)”,“message”:“Bad Request”,“code”:“400”,“name”:“OTLPExporterError”,“data”:“{"error":"Trace spans collection is not enabled for this user"}”} workbench.desktop.main.js:38247 [Extension Host] [otel.error] {“stack”:“OTLPExporterError: Bad Request\n\tat IncomingMessage. (c:\Users\torsi\AppData\Local\Programs\cursor\resources\app\node\_modules\@opentelemetry\otlp-exporter-base\build\src\transport\http-transport-utils.js:52:31)\n\tat IncomingMessage.emit (node:events:531:35)\n\tat endReadableNT (node:internal/streams/readable:1698:12)\n\tat process.processTicksAndRejections (node:internal/process/task\_queues:89:21)”,“message”:“Bad Request”,“code”:“400”,“name”:“OTLPExporterError”,“data”:“{"error":"Trace spans collection is not enabled for this user"}”} workbench.desktop.main.js:29069 [composerModesService] Mode not found: project workbench.desktop.main.js:41138 [composer] No first token received within 2s Object workbench.desktop.main.js:41138 [composer] No first token received within 4s Object workbench.desktop.main.js:41138 [composer] No first token received within 6s Object workbench.desktop.main.js:41138 [composer] No first token received within 8s Object workbench.desktop.main.js:41138 [composer] No first token received within 10s Object workbench.desktop.main.js:65 ERR [Extension Host] [otel.error] {“stack”:“OTLPExporterError: Bad Request\n\tat IncomingMessage. (c:\Users\torsi\AppData\Local\Programs\cursor\resources\app\node\_modules\@opentelemetry\otlp-exporter-base\build\src\transport\http-transport-utils.js:52:31)\n\tat IncomingMessage.emit (node:events:531:35)\n\tat endReadableNT (node:internal/streams/readable:1698:12)\n\tat process.processTicksAndRejections (node:internal/process/task\_queues:89:21)”,“message”:“Bad Request”,“code”:“400”,“name”:“OTLPExporterError”,“data”:“{"error":"Trace spans collection is not enabled for this user"}”} workbench.desktop.main.js:38247 [Extension Host] [otel.error] {“stack”:“OTLPExporterError: Bad Request\n\tat IncomingMessage. (c:\Users\torsi\AppData\Local\Programs\cursor\resources\app\node\_modules\@opentelemetry\otlp-exporter-base\build\src\transport\http-transport-utils.js:52:31)\n\tat IncomingMessage.emit (node:events:531:35)\n\tat endReadableNT (node:internal/streams/readable:1698:12)\n\tat process.processTicksAndRejections (node:internal/process/task\_queues:89:21)”,“message”:“Bad Request”,“code”:“400”,“name”:“OTLPExporterError”,“data”:“{"error":"Trace spans collection is not enabled for this user"}”} workbench.desktop.main.js:65 ERR [Extension Host] [otel.error] {“stack”:“OTLPExporterError: Bad Request\n\tat IncomingMessage. (c:\Users\torsi\AppData\Local\Programs\cursor\resources\app\node\_modules\@opentelemetry\otlp-exporter-base\build\src\transport\http-transport-utils.js:52:31)\n\tat IncomingMessage.emit (node:events:531:35)\n\tat endReadableNT (node:internal/streams/readable:1698:12)\n\tat process.processTicksAndRejections (node:internal/process/task\_queues:89:21)”,“message”:“Bad Request”,“code”:“400”,“name”:“OTLPExporterError”,“data”:“{"error":"Trace spans collection is not enabled for this user"}”} workbench.desktop.main.js:38247 [Extension Host] [otel.error] {“stack”:“OTLPExporterError: Bad Request\n\tat IncomingMessage. (c:\Users\torsi\AppData\Local\Programs\cursor\resources\app\node\_modules\@opentelemetry\otlp-exporter-base\build\src\transport\http-transport-utils.js:52:31)\n\tat IncomingMessage.emit (node:events:531:35)\n\tat endReadableNT (node:internal/streams/readable:1698:12)\n\tat process.processTicksAndRejections (node:internal/process/task\_queues:89:21)”,“message”:“Bad Request”,“code”:“400”,“name”:“OTLPExporterError”,“data”:“{"error":"Trace spans collection is not enabled for this user"}”} workbench.desktop.main.js:41455 [HOOKS] Failed to parse project hooks configuration undefined ### Steps to Reproduce Maybe after a long plan work ### Screenshots / Screen Recordings ![a4bf009c-9863-48c5-a014-655bb7df430d.png](https://us1.discourse-cdn.com/cursor1/original/3X/2/c/2c88806705ef110d5385fdaab019429cca700ecf.png) ### Operating System Windows 10/11 ### Version Information Version: 3.1.15 (user setup) VSCode Version: 1.105.1 Commit: 3a67af7b780e0bfc8d32aefa96b8ff1cb8817f80 Date: 2026-04-15T01:46:06.515Z Layout: editor Build Type: Stable Release Track: Default Electron: 39.8.1 Chromium: 142.0.7444.265 Node.js: 22.22.1 V8: 14.2.231.22-electron.0 OS: Windows\_NT x64 10.0.26200 ### Does this stop you from using Cursor No - Cursor works, but with this issue ---
**Author:** ![deanrie](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/deanrie/32/1263_2.png) [@deanrie](https://forum.cursor.com/u/deanrie)\ **Post date:** [April 17, 2026, 7:34am UTC](https://forum.cursor.com/t/composer-loses-chat-agent-mode-and-fails-to-apply-file-edits/158267/4 "2026-04-17T07:34:45Z")
Hey, thanks for the detailed report and logs. The key error is `[composerModesService] Mode not found: project`. This suggests Composer’s mode service lost track of the active mode, which explains why the agent falls back to a restricted state and can’t edit files. A few things to try: - Restart Cursor completely. Close all windows, then reopen. Does that bring back normal Agent mode? - Start a new chat with `Ctrl+N` instead of continuing the broken session. Does the new chat work normally? - The `[HOOKS] Failed to parse project hooks configuration undefined` error also points to a hooks config issue. If you have any `.cursor/hooks` set up, try temporarily removing them. The OTLP errors in your logs are telemetry-related and not the cause of this issue, so you can ignore those. Also, can you share the Request ID from a failed chat session? Click the three-dot menu at the top right of the chat panel, then Copy Request ID. That’ll help us check this on the backend. Does this happen consistently after long sessions, or is it intermittent? ---
**Author:** ![system](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/system/32/99069_2.png) [@system](https://forum.cursor.com/u/system)\ **Post date:** [May 9, 2026, 7:43am UTC](https://forum.cursor.com/t/composer-loses-chat-agent-mode-and-fails-to-apply-file-edits/158267/8 "2026-05-09T07:43:02Z")
Closed on May 9, 2026, 7:43am UTC This topic was automatically closed 22 days after the last reply. New replies are no longer allowed.