* chat: flush queued/steering messages when a streamed session turn completes Contributed chat sessions whose in-progress turn is streamed via activeResponseCallback (progressObs) — e.g. Copilot cloud sessions — register a synthetic pending request while streaming. A message sent mid-turn is therefore queued as a steering/queued message. The streaming-completion branch in loadRemoteSession deleted that pending request without flushing the queue, so the queued message was stranded in the model forever and never sent (steering 'limbo'). Mirror the normal request-completion path by calling processPendingRequests when the streamed turn completes. It is a no-op while another request is in flight and returns early for server-managed (agent-host) queues, so it is safe on every completion tick. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * chat: true mid-turn steering for cloud sessions Builds on the queued-message flush fix to inject a steer into a live cloud turn instead of only sending it after the turn settles, matching github.com/copilot/agents. Core (chatServiceImpl): for non-server-managed streamed (activeResponseCallback) sessions, dispatch a queued Steering message immediately when the in-flight pending request is the synthetic streamed-turn tracker (no requestId) — never over a real in-flight request. Re-establish tracking on the next progress tick so the turn stays in-progress. Extension (copilotCloudSessionsProvider): - Track live TaskTurnStreamer taskIds; when a stream is already active, handleTaskFollowUp only POSTs /steer and lets the running stream render the injected result (no second streamer). - Make the follow-up stream yield-aware (mirrors the Copilot CLI provider): poll context.yieldRequested and return on yield so the chat service flushes the next steer immediately. - Choose the render mode from the pre-steer task state: a steer into an active turn renders mode:'current' (the injection has no new task.sessions[] row, so mode:'next' would time out); a steer onto a settled task renders mode:'next'. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * chat: address review — fix synthetic-tracker race, tracking restore, stale task state - Identify the synthetic streamed-turn pending request via an explicit WeakSet instead of `requestId === undefined`: real requests are inserted into _pendingRequests before their requestId is assigned, so the old guard could delete a live request and start a concurrent invocation. - Restore in-progress tracking deterministically when the immediate-steer dispatch settles (hook responseCompletePromise) instead of relying on a future progress tick that may never fire. - Cloud provider: treat a follow-up as mid-turn (render mode:'current') only when BOTH the task and its latest turn are active, so a terminal task with a stale in_progress latest turn doesn't pick a streamer that exits before the steered turn appears. - Rework the regression tests: the steering test now asserts immediate dispatch, no duplicate dispatch on completion, and preserved in-progress tracking; a separate test covers completion-flush of a non-steering queued message. - Condense multi-line inline comments. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Visual Studio Code - Open Source ("Code - OSS")
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