Mid-turn user messages arrive only with the next tool result, after a whole parallel batch has run
Status Open
Reported on v2.1.270
Maintainer reply None cached
Activity 0 comments · opened Sep 14, 2026
What happened
The user's correction was delivered "alongside the next tool result" after a twelve-call parallel batch had fully completed, so the model could not act on it until every call in the batch had already been paid for.
Expected
The message surfaced before further calls in the batch dispatch, or a visible interrupt that halts the batch.
What the user said
"The thing to say in the main conversation is one line: stop the shell reads, go back to the graph"
Repro
Send a message while a multi-call parallel batch is running.
Environment: Claude Code CLI 2.1.270 (Claude Code), macOS, auto mode, model claude-fable-5-1, session of 2026-09-14.