I’m not sure if this is a bug, but I’m using Opus 4.5 agent and after a while, of course, the context window fills up. In prior builds the context summarization would happen pretty soon near around 70-80%. But this time I ran up into the 90% mid action, and then at the end it’s showing 100% full!
It says the chat context is summarized there at the end of the conversation, but you can see the context hover item showing it’s still packed to the brim.
Hey, thanks for the report.
This is a known issue with auto-summarization. It can trigger late or incorrectly. The team is aware of it, and there are similar reports here: Composer-1 Unreliably Creates "Context Summary" After Hitting Token Limit
Workaround: try running /summarize manually when you see the context getting close to 70 to 80%. This should help avoid cases where the agent hits the limit in the middle of a task.
Can you share the Request ID from this chat (three dots in the top right > Copy Request ID)? It will help the team understand the specifics of your case.
