I get this notification in the chat, although it was a short chat, no context issue yet and the model continues with its tasks, with the “Summarizing chat context” still appearing (as you can see the model continues, also after thinking) Model: Sonnet 4.0 Thinking Pro plan [image]

Hey all, just merged some relevant/duplicate threads into this one. There seems to be 3 separate behaviours we are tracking here: [:siren:] After a summary, the context of Cursor is almost “reset” and the model forgets the immediate past edits and history - example [:warning:] Cursor will sometime…

It never stops summarizing, only restarting Cursor does the trick. The AI needs to use the data returned by the MCP server (kind of one of the main use-case of MCP) - so it doesn’t make sense to let the chat continue while summarizing it in the background (even in this case, when do we know when th…

Thanks for the info. Can you confirm if the summarising UI disappears as expected if you are not using the MCP server, if you are able to check that? Can you confirm what MCP server and tool is causing this? Also, if you have privacy mode disable (or can do so), and can reproduce this, a Request I…

Here, i had same problem: 24340e9d-ec77-4333-ba93-49e0bb7dc794 [image]

After more testing, it doesn’t always happen when using MCP tools, just any time we’ll get the Summarizing chat context, the agent will lose track of what it was doing and start looping. Really is a breaking bug.

Same as Summarizing chat context eternal loop but that was locked. Cursor 0.51.1 Windows 10 22H2

:lady_beetle: Provide a clear description of the bug LLM loses context after running “Summarising chat context” and starts wasting dozens of calls to understand what it was doing just moment before. No idea how it’s implemented but if feels like summarisation process never ends successfully (messag…

for me it’s getting stuck at summarizing chat context and I have to open a new chat tab in order to fix it.

Better screenshot: [image] Note - “summarizing chat context” appears 3 time in a row, all blinking, after that model typically just starts conducting random actions. I also have seen “summarizing chat context” after 1st message in new chat. It shows up randomly and hardly does anything useful.

Anyone else read this as “leaking context”? It looks like the user is engaged in a complex debugging operation, which I’ll now forget all about since this summary will reboot the context. You should probably copy and paste the last few responses verbatim so that the vague summary doesn’t cause the …

Hey all, you can have a read of how this works below, happy to answer any queries though: [image] Summarizing chat context - why? Bug Reports Summarising has always happening in Cursor for a very long time, but it’s only recently that we decided to actually show you when …

"Summarizing chat context" lingering / weird behvaiour

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danperks (Dan) June 11, 2025, 6:51pm 14

Hey all, you can have a read of how this works below, happy to answer any queries though:

Topic		Replies	Views
Summarizing Context Resets context in chat Bug Reports	17	2376	April 12, 2025
sigh more optimization hell: Summarizing chat neverending Bug Reports	22	669	October 10, 2025
"Summarizing Chat Content" 💀 Discussions	5	2622	June 13, 2025
Summarizing chat context - why? Discussions	3	2588	June 11, 2025
Issue with chat summary when using MCP tools Bug Reports	6	119	October 20, 2025

"Summarizing chat context" lingering / weird behvaiour

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