---
phase: 22-agent-streaming
plan: "03"
subsystem: ui
tags: [react, streaming, chat, edit, retry, stop-button, tooltips]

# Dependency graph
requires:
  - phase: 22-02
    provides: ChatMessage with agentName/identity bar, ChatStreamingCursor, group-hover div wrapper

provides:
  - ChatStopButton component (centered outline button with Square icon)
  - ChatMessageActions component (edit Pencil for user, retry RefreshCw for assistant)
  - ChatMessage extended with inline edit mode, isAnyStreaming, onEdit/onRetry callbacks

affects:
  - 22-04 (ChatPanel integration — will wire onEdit/onRetry/stop callbacks)
  - Any component that renders ChatMessage

# Tech tracking
tech-stack:
  added: []
  patterns:
    - group-hover pattern for hover-triggered action buttons on chat bubbles
    - isAnyStreaming gate — passes to ChatMessageActions to globally disable edit/retry during streaming
    - inline edit mode with useState(isEditing) + useState(editValue) in ChatMessage

key-files:
  created:
    - ui/src/components/ChatStopButton.tsx
    - ui/src/components/ChatMessageActions.tsx
  modified:
    - ui/src/components/ChatMessage.tsx
    - ui/src/components/ChatMessage.test.tsx

key-decisions:
  - "isAnyStreaming prop added to ChatMessage (not isStreaming) — distinguishes 'this msg is streaming' from 'any msg is streaming' for disabling global edit/retry"
  - "ChatMessageActions returns null when isStreaming — clean conditional render, no CSS toggling"

patterns-established:
  - "Pattern: group-hover action buttons — parent div has 'group' class, action buttons use 'hidden group-hover:flex' to show on hover"
  - "Pattern: inline edit mode — useState(isEditing) in ChatMessage; textarea pre-filled with content; Save calls onEdit(id, newContent)"

requirements-completed: [CHAT-10, CHAT-11, CHAT-12]

# Metrics
duration: 3min
completed: 2026-04-01
---

# Phase 22 Plan 03: Message Action Controls Summary

**Edit/retry/stop controls wired to ChatMessage — user messages get inline edit textarea, assistant messages get retry RefreshCw, stop button component ready for ChatPanel.**

## Performance

- **Duration:** ~3 min
- **Started:** 2026-04-01T18:22:48Z
- **Completed:** 2026-04-01T18:25:20Z
- **Tasks:** 2 completed
- **Files modified:** 4

## Accomplishments

- ChatStopButton: centered outline button with Square (filled) icon, border-t container, aria-label for accessibility
- ChatMessageActions: Pencil edit at top-right of user bubble (absolute, group-hover), RefreshCw retry below assistant message (right-aligned, group-hover); both hidden when isStreaming
- ChatMessage extended with inline edit mode (textarea + Save/Discard), isAnyStreaming global gate, onEdit/onRetry callback props

## Task Commits

Each task was committed atomically:

1. **Task 1: ChatStopButton and ChatMessageActions components** - `ddf071c7` (feat)
2. **Task 2: Extend ChatMessage with inline edit mode and wire action callbacks** - `3d86f62a` (feat)

**Plan metadata:** (docs commit below)

## Files Created/Modified

- `ui/src/components/ChatStopButton.tsx` - Stop generation button, centered, variant="outline" size="sm", Square icon
- `ui/src/components/ChatMessageActions.tsx` - Edit/retry action buttons with Tooltip, aria-labels, group-hover visibility
- `ui/src/components/ChatMessage.tsx` - Extended with id, isAnyStreaming, onEdit, onRetry; inline edit textarea mode
- `ui/src/components/ChatMessage.test.tsx` - Updated test stubs; 1 passing export test + 10 todos

## Deviations from Plan

None - plan executed exactly as written.

## Self-Check: PASSED

- `ui/src/components/ChatStopButton.tsx` — exists
- `ui/src/components/ChatMessageActions.tsx` — exists
- `ui/src/components/ChatMessage.tsx` — exists (modified)
- `ddf071c7` — confirmed in git log
- `3d86f62a` — confirmed in git log