Feature Request: Auto-Summarize and New Session when a LLM Context Nears Full

[dbsxdbsx]

Is your feature request related to a problem? Please describe.
When using Claude 4 models, even with their large 200K context window, complex tasks can still hit the context limit, causing tasks to fail or be incomplete. While we already have a feature displaying real-time context usage percentage, manual intervention is still needed when the context is about to be exhausted.

Describe the solution you'd like
We propose a new feature: when the context usage reaches a user-defined threshold (e.g., 90%), Roo Code could:

1. Auto-Summarize: Automatically generate a concise summary of the current task or conversation.
2. Initiate New Session: Automatically start a new chat session.
3. Seamless Continuation: Pre-populate the new session with this summary, allowing the user to continue the task based on the summary, thus preventing interruptions due to context limits.

Describe alternatives you've considered
Currently, users have to manually monitor the context, copy relevant parts, summarize, and start a new session. This is time-consuming and error-prone.

Note

If this feature is added, it should not ruin the auto switch mode for the orchestrator routine, for example, if it raise a new chat by a sub task of code mode, when the new chat is completed, it should also sum both it and its previous code chat together back to the previous mode(usually the orchestrator mode)