Unable to Use Cursor Due to Persistent Error Message

Support Help
1

Whenever I try to send a message, I receive the following error message:

“Your message is too long. Please try again with a shorter message and fewer/smaller attached items.”

This issue occurs even in a new conversation and prevents normal usage. I have attached a demo video showing the problem.

2

i have this problem also long ago, turn out its related with using MCP, try to turn off MCP. if error still persist, better to place on Bug Report.

3

Can you do a Bug report please. Also download an earlier version and start a new chat.

4

Hey, thanks for the report. I can see the video and the screenshot with the error.

As @Naufaldi_Rafif mentioned, this is often related to MCP. Please try the following:

  1. Disable MCP: Settings > Tools & MCP. Turn it off, restart Cursor, and try again.
  2. Check .cursorrules: if the project has a large .cursorrules file or rules in .cursor/rules/, they automatically add context to every message.

If the issue still happens, please share:

  • Are MCP servers enabled? (Settings > Tools & MCP)
  • Is there a .cursorrules file in the project? If yes, how big is it?
  • Request ID (Chat menu > Copy Request ID)

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