[Bug] Premature "Context limit exceeded unexpectedly" at low usage (29%) & Auto-continuation fails

[VoTruongDanh]

Before opening, please confirm:

• I have searched for duplicate or closed issues

Operating System

Windows 11

Kiro Version

1.103.2

Bug Description

I am experiencing a critical issue with the latest version of Kiro. Normally, when the context limit is reached (usually around 80%+), Kiro automatically summarizes the conversation and starts a new chat session to continue the task.
However, in the current version, Kiro frequently stops working and throws the error: "Context limit exceeded unexpectedly. Please start a new session to continue."

Crucially, this happens even when the context usage is very low (e.g., 29% as seen in the screenshot), and it fails to automatically trigger the next session. Clicking to chat or continue simply repeats the error, blocking progress.

Steps to Reproduce

1. Start a coding task in the latest version of Kiro.
2. Allow the session to run for a while (but nowhere near the full context limit).
3. Observe that Kiro stops with the error: "Context limit exceeded unexpectedly. Please start a new session to continue."
4. Attempt to send a message to continue.

Actual Behavior: The agent stops completely at low context usage (e.g., ~29%). It does not automatically create a new chat to continue the workflow. The user is forced to manually start a new session, losing the immediate flow.

Expected Behavior

The agent should utilize the context up to a higher threshold (e.g., >80%) and then automatically handle the transition to a new chat/session without throwing an "unexpected" error.

Screenshots: Attached screenshots showing context usage at 29% and the error message.

Environment:

Version: Latest version

Conversation ID

cbf603d3-c5b7-4aa5-ba0d-556191e0c0b7

Additional Context