stack/packages
Mantra 5cb9240bc3
refactor(dashboard): unify AI chat surfaces on assistant-ui Thread (#1427)
## Summary
- Replace the bespoke `ai-chat-shared` chat UI (used by ask-ai, the
stack companion widget, vibe coding chat, and the create-dashboard
preview) with the shared `assistant-ui` `Thread` component.
- Extract streaming request/format helpers into a new
`components/assistant-ui/chat-stream.ts` module so each surface only
owns its `ChatModelAdapter`.
- Add a reusable `ToolFallback` for tool-call rendering and delete the
now-unused `ai-chat-shared.tsx` (-1386 / +747 lines net).

Stacked on top of `refactor/data-grid-and-dashboard-surfaces`.

Base: `refactor/data-grid-and-dashboard-surfaces` → Head:
`refactor/assistant-ui-chat-surfaces` · 18 files changed

> Red outlines on the **after** shots mark the unified `assistant-ui`
`Thread` surface in each location.

## Screenshots

### Analytics → Tables — AI Query dialog

| | Before | After |
|---|---|---|
| **Light** | <img
src="https://gist.githubusercontent.com/mantrakp04/323851437f41145aab12a27fb6c392b4/raw/analytics-tables-ai-before-light.png"
width="480" /> | <img
src="https://gist.githubusercontent.com/mantrakp04/323851437f41145aab12a27fb6c392b4/raw/analytics-tables-ai-after-light.png"
width="480" /> |
| **Dark** | <img
src="https://gist.githubusercontent.com/mantrakp04/323851437f41145aab12a27fb6c392b4/raw/analytics-tables-ai-before-dark.png"
width="480" /> | <img
src="https://gist.githubusercontent.com/mantrakp04/323851437f41145aab12a27fb6c392b4/raw/analytics-tables-ai-after-dark.png"
width="480" /> |

### Stack Companion — chat widget

| | Before | After |
|---|---|---|
| **Light** | <img
src="https://gist.githubusercontent.com/mantrakp04/323851437f41145aab12a27fb6c392b4/raw/stack-companion-before-light.png"
width="480" /> | <img
src="https://gist.githubusercontent.com/mantrakp04/323851437f41145aab12a27fb6c392b4/raw/stack-companion-after-light.png"
width="480" /> |
| **Dark** | <img
src="https://gist.githubusercontent.com/mantrakp04/323851437f41145aab12a27fb6c392b4/raw/stack-companion-before-dark.png"
width="480" /> | <img
src="https://gist.githubusercontent.com/mantrakp04/323851437f41145aab12a27fb6c392b4/raw/stack-companion-after-dark.png"
width="480" /> |

### Ask-AI command palette (⌘K → Ask AI)

| | Before | After |
|---|---|---|
| **Light** | <img
src="https://gist.githubusercontent.com/mantrakp04/323851437f41145aab12a27fb6c392b4/raw/ask-ai-cmdk-before-light.png"
width="480" /> | <img
src="https://gist.githubusercontent.com/mantrakp04/323851437f41145aab12a27fb6c392b4/raw/ask-ai-cmdk-after-light.png"
width="480" /> |
| **Dark** | <img
src="https://gist.githubusercontent.com/mantrakp04/323851437f41145aab12a27fb6c392b4/raw/ask-ai-cmdk-before-dark.png"
width="480" /> | <img
src="https://gist.githubusercontent.com/mantrakp04/323851437f41145aab12a27fb6c392b4/raw/ask-ai-cmdk-after-dark.png"
width="480" /> |

### Email editor — embedded chat panel

| | Before | After |
|---|---|---|
| **Light** | <img
src="https://gist.githubusercontent.com/mantrakp04/323851437f41145aab12a27fb6c392b4/raw/email-editor-chat-before-light.png"
width="480" /> | <img
src="https://gist.githubusercontent.com/mantrakp04/323851437f41145aab12a27fb6c392b4/raw/email-editor-chat-after-light.png"
width="480" /> |
| **Dark** | <img
src="https://gist.githubusercontent.com/mantrakp04/323851437f41145aab12a27fb6c392b4/raw/email-editor-chat-before-dark.png"
width="480" /> | <img
src="https://gist.githubusercontent.com/mantrakp04/323851437f41145aab12a27fb6c392b4/raw/email-editor-chat-after-dark.png"
width="480" /> |

## Notes for reviewers

The four surfaces above all previously shared
`components/commands/ai-chat-shared.tsx` (516 lines, deleted). After
this PR they each own a thin `ChatModelAdapter` and render through
`components/assistant-ui/thread.tsx` + the new `chat-stream.ts` helpers.
Visual differences between **before** and **after** are intentional —
the `assistant-ui` `Thread` brings its own message bubbles,
scroll-to-bottom behaviour, composer, and `ToolFallback` rendering. The
email editor's chat panel is the surface where the behaviour change is
most visible (tool-call rendering now consistent with the rest of the
app).

Heaviest changes (lines):
- `components/stack-companion/ai-chat-widget.tsx` (571)
- `components/commands/ai-chat-shared.tsx` (516, deleted)
- `analytics/tables/ai-query-dialog.tsx` (429)
- `components/vibe-coding/chat-adapters.ts` (400)
- `components/assistant-ui/chat-stream.ts` (284, new)
- `components/commands/ask-ai.tsx` (274)
- `components/assistant-ui/thread.tsx` (115)
- `components/assistant-ui/tool-fallback.tsx` (113)

## Test plan
- [ ] `pnpm lint`
- [ ] `pnpm typecheck`
- [ ] Manually exercise each affected surface: command-center Ask AI,
stack-companion widget, vibe-coding chat, analytics tables AI query,
create-dashboard preview, email editor chat.
- [ ] Verify tool-call chips render consistently across all four
surfaces (uses the new `ToolFallback`).
- [ ] Verify streaming + cancel works on each adapter (`chat-stream.ts`
is shared).
2026-05-15 14:21:00 -07:00
..
dashboard-ui-components Data-grid overhaul + session-replays / team-payments dashboard surfaces (#1424) 2026-05-15 14:16:47 -07:00
init-stack chore: update package versions 2026-05-11 10:10:47 -07:00
js chore: update package versions 2026-05-11 10:10:47 -07:00
react chore: update package versions 2026-05-11 10:10:47 -07:00
stack chore: update package versions 2026-05-11 10:10:47 -07:00
stack-cli stack-cli: explicit --cloud-project-id / --config-file across exec, config, project (#1422) 2026-05-14 17:20:40 -07:00
stack-sc chore: update package versions 2026-05-11 10:10:47 -07:00
stack-shared refactor(dashboard): unify AI chat surfaces on assistant-ui Thread (#1427) 2026-05-15 14:21:00 -07:00
stack-ui chore: update package versions 2026-05-11 10:10:47 -07:00
tanstack-start chore: update package versions 2026-05-11 10:10:47 -07:00
template refactor(dashboard): unify AI chat surfaces on assistant-ui Thread (#1427) 2026-05-15 14:21:00 -07:00