feat(06): Streaming chat and agent UI - #48
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…s[] (docs/roadmap/06-streaming-chat-and-agent-ui.md) - ChatAgentService: client_events accumulation + respond_events() generator (token / tool_start / tool_end / done) buffering tool-call chunks - Chat.stream_response(): persists assistant message on done AND partial text on disconnect (doc 06 §2 'prefer save partial'); over_limit -> single error - POST /api/chats/<id>/stream (plain Django StreamingHttpResponse, no channels): meta/status/token/done/error frames per doc 06 §1 - Legacy POST gains optional events[] (flashcard_deck_created) per doc 06 §3 - FakeStreamingClient + seed_e2e_streaming_chat: deterministic demo/e2e path with no AWS credentials
- api/chats.ts: createSseParser + normalizeStreamEvent (chunk-safe, unit tested) and streamChatMessage() using fetch+ReadableStream per doc 06 §1, with XHR progress fallback for RN FormData image parts; AbortSignal cancel - botChat.tsx: sending/streaming/error state machine, growing assistant bubble, Stop button (testID stop-button), Retry on failed send, light haptic on deck creation, VoiceOver 'Bot is typing' announcement - ChatMessage.tsx: agent-activity chips (searching/deck/sources) + retry - deck toast 'N cards in <name>' with Study now CTA -> /flashcards/deck - e2e/06-streaming-chat.e2e.js: seeded fake-stream walk (progressive tokens, tool chip, toast, study deep link) + cancel-mid-stream keeps bubble
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Aug 26, 2026
Screenshot shows the chat screen with message input and camera/send buttons.
Screenshot shows the chat screen with message input and camera/send buttons.
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Roadmap 06: Streaming Chat & Agent UI
Implements #58.
What changed
POST /api/chats/{id}/stream),respond_eventsgenerator, partial text save on disconnect, fake AI client for e2e (e2e-fake-streammodel)createSseParser(chunk-boundary-safe), growing assistant bubble, Stop button, agent-activity chips (deck/search/sources), deck-created toast → Study nowStreamingHttpResponse(no new infra needed)Evidence
https://github.com/tpaulshippy/bots/raw/feature/roadmap-06-streaming-chat/evidence/pr48-streaming.mp4