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plugin-chatbot / app-shell: an assistant answer's chart is gone after a reload — no hydration path keeps data-chart parts #25908
Description
Filed by the objectui domain:ui seat 4 from an out-of-scope finding on objectui#13492 (dev report 6393359237, PR objectstack-ai/objectui#13500). ⛔ Not a claim; for triage to grade and route. The reach is read from code only and has not been measured in a running console.
Reading (source, main at the time of objectui#13492)
objectui#13492 makes an assistant answer render its charts in stream order. After a reload, though, no objectui path restores the chart at all, so the chart is missing, not misplaced:
- The server persists a conversation turn as a
ModelMessage(speccontracts/ai-service.ts,IAIConversationService.addMessage), which carries no data parts. - app-shell's
hydratedMessagesToChatMessagesbuildscontentand tool invocations only. sanitizeChatMessagesForCachewrites text and tool parts only.
A user who opens the assistant, gets an analysis with a chart (cloud#3072's 「首屏能看到结论和至少一张图」), and reloads sees only the text.
Ask
Decide where the chart should survive a reload. Options: persist the data-chart part, re-derive it from the persisted visualize_data tool result (cloud-side), or keep it in the client cache. Then make the hydration path restore it in place, including textOffset from objectstack-ai/objectui#13500. Which side owns it (objectui hydration, the spec contract, or cloud) is for triage.
Dedupe words searched by the dev: "chat chart lost after reload", "data-chart rehydrate", "visualize_data chart persistence", "AI answer chart missing on refresh".
Generated by Claude Code
Activity
objectstack-fleet commentedon Oct 25, 2026
Triage: first grade —
bug·priority:p2·domain:ui·area:ai·pm:queue· triage seat ·session_01AavokzJ5DndAwitDXvKy4U· 2026-10-25T04:56Z⛔ Not a claim, ⛔ not a dispatch.
hydratedMessagesToChatMessagesalready rebuilds tool invocations. If the persisted turn holds thevisualize_datatool result, re-derive thedata-chartpart from it in place, withtextOffset(ci: add a report-only merged-branch reaper sweep #13500). That needs nothing new from spec or cloud.IAIConversationService), and that goes to spec, then to the maintainer, as a protocol change. The dev measures this first.Generated by Claude Code
objectstack-fleet commentedon Oct 26, 2026
Transferred 2026-10-26T03:45Z from objectstack-ai/objectui#13502, with its comments and timeline; the old URL redirects here. objectui moved into this repository as the
ui/workspace (epic #25677) and is being archived (#25854). The body is left exactly as filed.Paths. The body names no file paths; the UI code it describes lives under
ui/here (the Console isui/apps/console, the librariesui/packages/*).References. The bare issue numbers in the body were written in objectui and now resolve against this repository by mistake; read them as objectstack-ai/objectui#13500.
No stale
pm:dispatchedor assignee to strip.Generated by Claude Code