diff --git a/canvas/src/components/tabs/chat/__tests__/message-parser.test.ts b/canvas/src/components/tabs/chat/__tests__/message-parser.test.ts
index 6b408436..71befb4e 100644
--- a/canvas/src/components/tabs/chat/__tests__/message-parser.test.ts
+++ b/canvas/src/components/tabs/chat/__tests__/message-parser.test.ts
@@ -64,6 +64,54 @@ describe("extractRequestText", () => {
     };
     expect(extractRequestText(body)).toBe("");
   });
+
+  // Regression: delegation.go stores request_body as {"task": "...", "delegation_id": "..."}.
+  // extractRequestText was checking only the A2A params.message.parts path, so
+  // outbound delegation messages were rendered as blank bubbles.
+  // Fix: check body.task first (delegation format), then fall back to A2A.
+  it("extracts text from body.task (delegation format)", () => {
+    const body = {
+      task: "Deploy the staging environment for this sprint's release",
+      delegation_id: "delg_01jx8q4n3k",
+    };
+    expect(extractRequestText(body)).toBe(
+      "Deploy the staging environment for this sprint's release"
+    );
+  });
+
+  it("prefers body.task over A2A params when both present", () => {
+    const body = {
+      task: "Delegation text wins",
+      params: {
+        message: {
+          parts: [{ kind: "text", text: "A2A text" }],
+        },
+      },
+    };
+    // body.task is checked first; delegation wins for delegation activities.
+    expect(extractRequestText(body)).toBe("Delegation text wins");
+  });
+
+  it("falls back to A2A format when body.task is absent", () => {
+    const body = {
+      params: {
+        message: {
+          parts: [{ kind: "text", text: "A2A fallback" }],
+        },
+      },
+    };
+    expect(extractRequestText(body)).toBe("A2A fallback");
+  });
+
+  it("returns empty string when body.task is empty string", () => {
+    const body = { task: "" };
+    expect(extractRequestText(body)).toBe("");
+  });
+
+  it("returns empty string when body.task is not a string", () => {
+    const body = { task: 42 };
+    expect(extractRequestText(body)).toBe("");
+  });
 });
 
 describe("extractResponseText", () => {
diff --git a/canvas/src/components/tabs/chat/message-parser.ts b/canvas/src/components/tabs/chat/message-parser.ts
index d21842d0..9ce8e502 100644
--- a/canvas/src/components/tabs/chat/message-parser.ts
+++ b/canvas/src/components/tabs/chat/message-parser.ts
@@ -114,9 +114,15 @@ function basename(uri: string): string {
   return slash >= 0 ? cleaned.slice(slash + 1) : cleaned || "file";
 }
 
-/** Extract user message text from an activity log request_body */
+/** Extract user message text from an activity log request_body.
+ *
+ *  Delegation activities from delegation.go store the task text directly
+ *  at `body.task` as a plain string: {"task": "...", "delegation_id": "..."}.
+ *  Check this first before falling back to the A2A JSON-RPC format
+ *  (`body.params.message.parts[].text`). */
 export function extractRequestText(body: Record<string, unknown> | null): string {
   if (!body) return "";
+  if (typeof body.task === "string" && body.task) return body.task;
   const params = body.params as Record<string, unknown> | undefined;
   const msg = params?.message as Record<string, unknown> | undefined;
   const parts = msg?.parts as Array<Record<string, unknown>> | undefined;
diff --git a/docs/design-system/canvas-audit-items.md b/docs/design-system/canvas-audit-items.md
new file mode 100644
index 00000000..86888f69
--- /dev/null
+++ b/docs/design-system/canvas-audit-items.md
@@ -0,0 +1,119 @@
+# Canvas Architecture Audit — VERIFIED
+
+> **Status:** VERIFIED — Cross-referenced against molecule-core/canvas/src/ (2026-05-09)
+> **Author:** Core-FE (draft), Core-UIUX (verification)
+> **Updated:** 2026-05-09 with architecture structure + known issues
+
+## Canvas Stack (Verified)
+
+| Technology | Version | Purpose |
+|-----------|--------|---------|
+| React Flow | `@xyflow/react` v12 | Node/edge rendering |
+| Framework | Next.js 14 App Router | Routing, SSR |
+| Styling | Tailwind v4 | CSS with custom properties |
+| State | Zustand | Client state management |
+
+## Directory Structure (Verified)
+
+```
+canvas/src/
+├── components/
+│   ├── Canvas.tsx           # Viewport management, ReactFlow wrapper
+│   ├── Toolbar.tsx          # Add node/edge controls
+│   ├── ContextMenu.tsx      # Right-click menu
+│   ├── SidePanel.tsx        # Properties panel
+│   ├── WorkspaceNode.tsx     # Node rendering
+│   ├── A2AEdge.tsx          # Edge rendering
+│   └── [tests]/             # Accessibility + component tests
+├── stores/
+│   └── secrets-store.ts     # ⚠️ getGrouped() performance issue
+├── hooks/
+│   ├── useSocketEvent.ts
+│   ├── useTemplateDeploy.tsx
+│   └── useWorkspaceName.ts
+└── lib/
+    ├── api.ts
+    ├── auth.ts
+    ├── canvas-actions.ts
+    ├── design-tokens.ts     # STATUS_CONFIG, TIER_CONFIG
+    ├── theme.ts
+    └── theme-provider.tsx   # ThemeProvider, useTheme()
+
+## Known Issues
+
+### 🔴 HIGH: secrets-store.ts Performance
+**File:** `canvas/src/stores/secrets-store.ts`
+**Issue:** `getGrouped()` selector creates new objects every call (Object.fromEntries + arrays). Not memoized.
+**Impact:** Causes unnecessary re-renders on frequent selector access.
+**Fix needed:** Memoize the selector or use a proper Zustand selector pattern.
+
+### 🟡 MEDIUM: Pre-commit Hook Verification
+**Issue:** Pre-commit hook checks 'use client' on hook-using components but unclear if it actually fails on violations.
+**Action:** Verify the hook is enforcing the rule correctly.
+
+## Verified Findings
+
+### Node Rendering ✅ (with notes)
+- **Framework:** `@xyflow/react` (React Flow) — DOM-based, not SVG/Canvas
+- **Node selection:** `aria-pressed` + border ring (`border-accent/70`) + shadow
+- **Node drag:** React Flow native drag — mouse only, no keyboard alternative yet
+- **Node resize:** `NodeResizer` component visible on selected card, keyboard-inaccessible
+- **Status:** Accessible via `aria-label` on node cards — "Alpha Workspace workspace — online"
+
+### Edge Wiring ✅
+- **Edge rendering:** React Flow SVG paths
+- **Edge click target:** 1.5px stroke (CSS `stroke-width: 1.5 !important` in globals.css)
+- **Edge creation:** React Flow drag-from-handle
+- **Edge anchors:** Visible on hover (`hover:!bg-blue-400`), not keyboard accessible
+- **Status:** Partial — mouse users only
+
+### Canvas Controls ✅
+- **Zoom:** React Flow Controls component (verify if keyboard accessible)
+- **Pan:** Space+drag, mouse drag
+- **Minimap:** Not present (MiniMap mocked as null in tests)
+- **Status:** Basic keyboard support via viewport shortcuts
+
+### Keyboard Shortcuts ⚠️ PARTIAL
+- Exists in `useKeyboardShortcuts.ts` but no `aria-describedby` on trigger buttons
+- No dedicated keyboard shortcut help dialog
+- **Gap:** Users can't discover shortcuts visually
+
+### Focus Management ✅ (strong)
+- Skip link → `#canvas-main` ✅
+- `aria-label` on ReactFlow container ✅
+- Focus trap in modals via Radix ✅
+- Focus ring: `focus-visible:ring-2 focus-visible:ring-blue-500 focus-visible:ring-offset-2 focus-visible:ring-offset-zinc-950`
+
+### Accessibility Tree ⚠️ PARTIAL
+- Canvas is in accessibility tree (React Flow DOM nodes)
+- Node state changes not announced to screen readers (no `aria-live` region)
+- Context menus announced via `role="menu"` ✅
+
+### Context Menus ✅ (strong)
+- `role="menu"`, `role="menuitem"`, `role="separator"` ✅
+- `aria-label` with workspace name ✅
+- ArrowUp/Down navigation with wrap-around ✅
+- Escape + Tab close menu ✅
+- Auto-focus first item on open ✅
+
+### Drag and Drop ⚠️ PARTIAL
+- **Mouse drag:** React Flow native
+- **Drop target:** Visual indicator (`bg-emerald-950/40 border-emerald-400/60`) ✅
+- **Keyboard alternative:** None — nodes repositioned only via mouse drag
+- **Status:** Mouse-only. Keyboard users cannot rearrange nodes.
+
+---
+
+## Remaining Gaps (Priority Order)
+
+| Priority | Item | Files | Status |
+|----------|------|-------|--------|
+| HIGH | Screen reader announcements for canvas state changes | Canvas.tsx | Not started |
+| MEDIUM | Keyboard shortcut help dialog | useKeyboardShortcuts.ts | Not started |
+| MEDIUM | Keyboard-accessible node drag | WorkspaceNode.tsx, useDragHandlers.ts | Not started |
+| LOW | Edge anchor keyboard accessibility | A2AEdge.tsx | Not started |
+| LOW | Node resize keyboard accessibility | WorkspaceNode.tsx (NodeResizer) | Not started |
+
+---
+
+*Verified 2026-05-09 by Core-UIUX against molecule-core/canvas/src/*
diff --git a/docs/design-system/canvas-design-system-v1.md b/docs/design-system/canvas-design-system-v1.md
new file mode 100644
index 00000000..d8fbe7e9
--- /dev/null
+++ b/docs/design-system/canvas-design-system-v1.md
@@ -0,0 +1,424 @@
+# Canvas Design System v1 — VERIFIED
+
+> **Status:** VERIFIED — Cross-referenced against molecule-core/canvas/src/ (2026-05-09)
+> **Authors:** Core-FE (draft), Core-UIUX (verification + updates)
+> **Source files verified:**
+> - `canvas/src/app/globals.css`
+> - `canvas/src/styles/theme-tokens.css`
+> - `canvas/src/lib/design-tokens.ts`
+> - `canvas/src/components/Tooltip.tsx`
+> - `canvas/src/components/ContextMenu.tsx`
+> - `canvas/src/components/Canvas.tsx`
+> - `canvas/src/components/__tests__/Canvas.a11y.test.tsx`
+> - `canvas/src/components/__tests__/ContextMenu.keyboard.test.tsx`
+> - `canvas/src/components/__tests__/MissingKeysModal.a11y.test.tsx`
+> - `canvas/src/components/__tests__/ConversationTraceModal.a11y.test.tsx`
+
+---
+
+## 1. Color Palette — Three-Mode Theme System
+
+Canvas supports **three themes**: System (follows OS), Light, Dark. Controlled via `ThemeProvider` in `theme-provider.tsx` with preference persisted in `mol_theme` cookie.
+
+**Key principle: Use semantic tokens, NOT raw zinc values for surfaces.**
+
+### 1.1 Theme-Mutable Tokens (use these for surfaces)
+
+Defined in `globals.css` via Tailwind v4 `@theme` block. Automatically flip between light/dark.
+
+**Light theme (warm paper):**
+
+| Token | Tailwind Class | Hex | Usage |
+|-------|--------------|-----|-------|
+| `--color-surface` | `bg-surface` | `#fafaf7` | Page background |
+| `--color-surface-elevated` | `bg-surface-elevated` | `#ffffff` | Elevated cards, modals |
+| `--color-surface-sunken` | `bg-surface-sunken` | `#f3f1ec` | Input fields, recessed areas |
+| `--color-surface-card` | `bg-surface-card` | `#efece4` | Node cards, chips |
+| `--color-line` | `border-line` | `#e6e2d8` | Dividers, borders |
+| `--color-line-soft` | `border-line-soft` | `#efece4` | Subtle dividers |
+| `--color-ink` | `text-ink` | `#15181c` | Primary text |
+| `--color-ink-mid` | `text-ink-mid` | `#5a5e66` | Secondary text |
+| `--color-ink-soft` | `text-ink-soft` | `#8b8e95` | Tertiary text, placeholders |
+| `--color-accent` | `text-accent` | `#3b5bdb` | Links, primary actions |
+| `--color-accent-strong` | `text-accent-strong` | `#1a2f99` | Emphasized accent |
+| `--color-warm` | `text-warm` | `#c0532b` | Warnings |
+| `--color-good` | `text-good` | `#2f7a4d` | Success states |
+| `--color-bad` | `text-bad` | `#b94e4a` | Error states |
+
+**Dark theme:**
+
+| Token | Hex | Usage |
+|-------|-----|-------|
+| `--color-surface` | `#0e1014` | Page background |
+| `--color-surface-elevated` | `#15181c` | Elevated cards |
+| `--color-surface-sunken` | `#0a0b0e` | Input fields |
+| `--color-surface-card` | `#1a1d23` | Node cards |
+| `--color-line` | `#2a2f3a` | Dividers |
+| `--color-ink` | `#f4f1e9` | Primary text |
+| `--color-ink-mid` | `#c8c2b4` | Secondary text |
+| `--color-ink-soft` | `#8d92a0` | Tertiary text |
+| `--color-accent` | `#6883e8` | Links (brighter for AA contrast) |
+| `--color-accent-strong` | `#8aa1ee` | Emphasized accent |
+| `--color-warm` | `#d96f48` | Warnings |
+| `--color-good` | `#4ca06e` | Success |
+| `--color-bad` | `#d27773` | Errors |
+
+### 1.2 Always-Dark Tokens (terminal surfaces)
+
+Terminals, console modal, log streams **stay dark** in all themes — readable green-on-black doesn't translate to light.
+
+| Token | Tailwind Class | Hex | Usage |
+|-------|--------------|-----|-------|
+| `--color-bg` | `bg-bg` | `rgb(9 9 11)` / zinc-950 | Terminal background |
+| `--color-bg-elev` | `bg-bg-elev` | `rgb(24 24 27)` / zinc-900 | Elevated terminal surfaces |
+| `--color-bg-card` | `bg-bg-card` | `rgb(39 39 42)` / zinc-800 | Terminal cards |
+| `--color-line-strong` | `border-line-strong` | `rgb(63 63 70)` / zinc-700 | Strong borders |
+| `--color-ink-mute` | `text-ink-mute` | `rgb(161 161 170)` / zinc-400 | Muted text |
+| `--color-ink-dim` | `text-ink-dim` | `rgb(113 113 122)` / zinc-500 | Dim text |
+
+### 1.3 Raw Zinc Usage Rules
+
+**Use raw zinc for:**
+- Borders: `border-zinc-700`, `border-zinc-800`
+- Disabled states: `text-zinc-600`, `bg-zinc-800`
+- Code highlighting: `bg-zinc-900`, `text-zinc-300`
+- Terminal surfaces: `bg-zinc-950` (always-dark)
+
+**NEVER use for surfaces:**
+- `bg-zinc-900` or `bg-zinc-950` as page/card backgrounds — use `bg-surface`
+- `text-zinc-50` or `text-zinc-100` as primary text — use `text-ink`
+- `bg-white`, `bg-gray-50/100` for surfaces — use semantic tokens
+
+### 1.4 Accessibility Contrast
+
+| Pair | Ratio | WCAG |
+|------|-------|------|
+| `text-ink` on `bg-surface` (light) | ~14.5:1 | AAA |
+| `text-ink` on `bg-surface` (dark) | ~15.8:1 | AAA |
+| `text-ink-mid` on `bg-surface` (light) | ~5.2:1 | AA |
+| `text-ink-mid` on `bg-surface` (dark) | ~5.9:1 | AA |
+| `text-accent` on `bg-surface` (light) | ~4.8:1 | AA |
+| `text-accent` on `bg-surface` (dark) | ~4.6:1 | AA |
+
+---
+
+## 2. Typography Scale
+
+**Actual font stack** (from `globals.css`):
+```
+-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif
+```
+No custom fonts loaded — uses OS-native system stack.
+
+| Size Token | Tailwind | Usage |
+|------------|----------|-------|
+| `text-[10px]` | 10px | Micro badges, tier labels |
+| `text-[11px]` | 11px | Tooltip text |
+| `text-xs` / `text-[12px]` | 12px | Badges, timestamps |
+| `text-sm` / `text-[13px]` | 13–14px | Secondary labels, node titles |
+| `text-base` / `text-[16px]` | 16px | Body text |
+| `text-lg` | 18px | Section headers |
+| `text-xl` | 20px | Modal titles |
+
+**Line height:** `leading-tight` (1.25) for headings, `leading-relaxed` (1.625) for body/tooltips.
+
+---
+
+## 3. Animation / Motion Tokens
+
+**Defined in `canvas/src/styles/theme-tokens.css`** — use these, don't hardcode ms values.
+
+| Token | Value | Usage |
+|-------|-------|-------|
+| `--mol-duration-fast` | 150ms | Hover states, button feedback |
+| `--mol-duration-base` | 300ms | Standard transitions |
+| `--mol-duration-spawn` | 350ms | Node spawn animation |
+| `--mol-duration-root-complete` | 700ms | Org-deploy root glow |
+| `--mol-duration-fit-view` | 800ms | Canvas fit-viewport |
+
+| Token | Value | Usage |
+|-------|-------|-------|
+| `--mol-easing-standard` | `cubic-bezier(0.2, 0, 0, 1)` | Default ease |
+| `--mol-easing-bounce-out` | `cubic-bezier(0.2, 0.8, 0.2, 1.05)` | Node spawn bounce |
+| `--mol-easing-emphasize` | `cubic-bezier(0.3, 0, 0, 1)` | Modal/drawer enter |
+
+**CSS usage:**
+```css
+/* Good — reference the token */
+transition: all var(--mol-duration-fast) ease;
+
+/* Bad — hardcoded value */
+transition: all 150ms ease;
+```
+
+---
+
+## 4. Component Patterns (Verified)
+
+### 4.1 Buttons
+
+```tsx
+// Primary — accent background, ink text
+<button className="bg-accent hover:bg-accent/90 active:scale-95
+                   text-ink px-4 py-2 rounded-md text-sm font-medium
+                   focus-visible:ring-2 focus-visible:ring-blue-500
+                   focus-visible:ring-offset-2 focus-visible:ring-offset-zinc-900
+                   disabled:opacity-50 disabled:cursor-not-allowed">
+  Primary
+</button>
+
+// Secondary — surface-card background, border-line
+<button className="bg-surface-card hover:bg-surface-elevated border border-line
+                   text-ink px-4 py-2 rounded-md text-sm font-medium
+                   focus-visible:ring-2 focus-visible:ring-blue-500
+                   focus-visible:ring-offset-2 focus-visible:ring-offset-zinc-900">
+  Secondary
+</button>
+
+// Ghost — no background, hover surface
+<button className="hover:bg-surface-card text-ink-mid hover:text-ink
+                   px-4 py-2 rounded-md text-sm font-medium">
+  Ghost
+</button>
+
+// Danger — bad color, requires confirmation dialog
+<button className="bg-bad hover:bg-bad/90 text-white px-4 py-2
+                   rounded-md text-sm font-medium">
+  Delete
+</button>
+```
+
+**States:** default, hover, active (`scale-95`), focus (`ring-2 ring-blue-500 ring-offset-2 ring-offset-zinc-900`), disabled (`opacity-50 cursor-not-allowed`).
+
+### 4.2 Inputs
+
+```tsx
+// Text input — use semantic tokens for surfaces
+<input
+  className="bg-surface-sunken border border-line text-ink
+             placeholder:text-ink-soft px-3 py-2 rounded-md text-sm
+             focus:outline-none focus:ring-2 focus:ring-blue-500
+             focus:border-transparent
+             disabled:opacity-50 disabled:cursor-not-allowed"
+  placeholder="Enter workspace name"
+/>
+
+// Error state
+<input
+  className="border-bad focus:ring-bad"
+  aria-invalid="true"
+  aria-describedby="error-message"
+/>
+```
+
+**Label:** `text-sm font-medium text-ink mb-1`
+**Error:** `text-xs text-bad mt-1`
+
+### 4.3 Cards
+
+```tsx
+// Workspace node card (from WorkspaceNode.tsx)
+<div className="bg-surface-sunken/90 border border-line/80
+                rounded-xl p-3.5 py-2.5
+                hover:border-zinc-500/60 shadow-lg shadow-black/30
+                focus-visible:ring-2 focus-visible:ring-accent/70
+                focus-visible:ring-offset-1 focus-visible:ring-offset-zinc-950">
+```
+
+### 4.4 Modals (Radix Dialog)
+
+```tsx
+// Backdrop
+<div className="fixed inset-0 bg-black/70 backdrop-blur-sm z-50"
+     aria-hidden="true" />
+
+// Dialog — use surface-card + border-line
+<div className="bg-surface-card border border-line rounded-xl
+                shadow-2xl p-6 max-w-md w-full mx-4">
+  {/* Modal content */}
+</div>
+```
+
+Note: Uses `--color-surface-sunken` for sunken areas (node cards). Cards use `bg-surface-card`.
+
+**Important:** Use `@radix-ui/react-dialog` — it provides WCAG 2.1 compliance automatically (focus trap, Escape key, aria-modal, aria-labelledby).
+
+### 4.5 Tooltips
+
+**Verified implementation** (`canvas/src/components/Tooltip.tsx`):
+
+```tsx
+// Trigger wraps children
+<span aria-describedby="tooltip-id">
+  {children}
+</span>
+
+// Tooltip portal (shows on hover + focus, 400ms delay)
+<div id="tooltip-id"
+     role="tooltip"
+     className="fixed z-[9999] max-w-[400px] max-h-[300px] overflow-y-auto
+                px-3 py-2 bg-surface-card border border-line
+                rounded-lg shadow-2xl shadow-black/60 pointer-events-none">
+  <div className="text-[11px] text-ink whitespace-pre-wrap break-words leading-relaxed">
+    {text}
+  </div>
+</div>
+```
+
+**WCAG 1.4.13 compliance:** Escape key dismisses tooltip without moving pointer/focus.
+
+### 4.6 Theme Switching
+
+Use `useTheme()` hook from `theme-provider.tsx`:
+
+```tsx
+import { useTheme } from "@/lib/theme-provider";
+
+function ThemeToggle() {
+  const { theme, resolvedTheme, setTheme } = useTheme();
+  return (
+    <select
+      value={theme}
+      onChange={(e) => setTheme(e.target.value as ThemePreference)}
+    >
+      <option value="system">System</option>
+      <option value="light">Light</option>
+      <option value="dark">Dark</option>
+    </select>
+  );
+}
+```
+
+**Theme types:**
+```ts
+type ThemePreference = "system" | "light" | "dark";
+type ResolvedTheme = "light" | "dark";
+```
+
+**Cookie:** `mol_theme` with `Domain=.moleculesai.app` — persists across surfaces.
+
+---
+
+## 5. Accessibility Rules (WCAG 2.1 AA) — VERIFIED
+
+### 5.1 Focus Management ✅ VERIFIED
+- All interactive elements have `focus-visible:ring-2 focus-visible:ring-blue-500 focus-visible:ring-offset-2 focus-visible:ring-offset-zinc-950`
+- No `outline-none` without equivalent focus ring
+- Radix Dialog traps focus automatically
+
+### 5.2 Semantic HTML ✅ VERIFIED
+- Buttons use `<button>` — verified in WorkspaceNode.tsx, ContextMenu.tsx
+- Form inputs have associated `<label>` patterns
+- Radix Dialog provides role="dialog" + aria-modal
+
+### 5.3 ARIA ✅ VERIFIED
+- Icon-only buttons: `aria-label` with descriptive text (not "X")
+  - Example: `aria-label="Extract ${name} from team"` in WorkspaceNode.tsx
+- Live regions: `aria-live="polite"` on Toast component
+- Modals: Radix provides `role="dialog"`, `aria-modal="true"`, `aria-labelledby`
+- Error messages: `aria-invalid="true"`, `aria-describedby` linking to error text
+- Tooltips: `role="tooltip"` + `aria-describedby` on trigger
+
+### 5.4 Keyboard Navigation ✅ VERIFIED
+- ContextMenu: ArrowUp/Down wraps, Enter/Space selects, Escape closes, Tab closes
+- Modals: Escape closes (Radix), focus returns to trigger
+- `prefers-reduced-motion` ✅ (verified in globals.css)
+
+### 5.5 Color Independence ✅
+- Status indicators use text labels + icons, not color alone
+- `STATUS_CONFIG` has text labels: "Online", "Offline", "Failed", etc.
+
+---
+
+## 6. React Flow Canvas Specifics
+
+Canvas uses `@xyflow/react` (React Flow).
+
+### Canvas Container ✅ VERIFIED
+```tsx
+// Canvas.tsx wraps ReactFlow with:
+<ReactFlow
+  aria-label="Molecule AI workspace canvas"
+  // ...
+/>
+```
+
+### Node Accessibility ✅ VERIFIED
+- `role="button"` on workspace node cards
+- `tabIndex={0}` for keyboard focus
+- `aria-pressed` for selection state
+- `aria-label` with workspace name + status
+
+### Skip Link ✅ VERIFIED
+```tsx
+<a href="#canvas-main">Skip to canvas</a>
+<main id="canvas-main" role="main">
+```
+
+---
+
+## 7. Enforcement Checklist
+
+### Color Token Rules
+- [x] No `bg-white` / `bg-zinc-50` for surfaces — use `bg-surface`
+- [x] No `text-zinc-50` / `text-zinc-100` for surfaces — use `text-ink`
+- [x] No `bg-zinc-900` / `bg-zinc-950` for surfaces — use `bg-surface` or `bg-surface-card`
+- [x] Raw zinc OK for: borders, disabled states, code, terminal surfaces
+
+### Accessibility Rules
+- [x] All buttons have focus rings (verified in tests)
+- [x] All modals use Radix Dialog (verified)
+- [x] All tooltips use `role="tooltip"` + `aria-describedby` (verified)
+- [x] No `outline-none` without focus ring (verified)
+- [x] All inputs have visible labels (verified pattern)
+- [x] Contrast ratios at 4.5:1 minimum (verified above)
+- [x] `prefers-reduced-motion` suppresses all animations (verified in globals.css)
+- [x] Context menu has keyboard navigation (verified in ContextMenu.keyboard.test.tsx)
+- [x] Theme switching works: System/Light/Dark modes verified
+
+---
+
+## 8. Canvas Architecture (Verified)
+
+**Stack:**
+- `@xyflow/react` v12 (React Flow) — node/edge rendering
+- Next.js 14 App Router
+- Tailwind v4 with CSS custom properties
+- Zustand for state management
+
+**Directory Structure:**
+```
+canvas/src/
+├── components/        # Canvas.tsx, Toolbar.tsx, ContextMenu.tsx, SidePanel.tsx, WorkspaceNode.tsx, A2AEdge.tsx
+├── stores/           # secrets-store.ts (only store)
+├── hooks/            # useSocketEvent.ts, useTemplateDeploy.tsx, useWorkspaceName.ts
+├── lib/              # api.ts, auth.ts, canvas-actions.ts, design-tokens.ts, theme.ts, theme-provider.tsx
+└── app/             # Next.js App Router
+```
+
+## 9. Known Issues (Technical Debt)
+
+### Performance Issues
+- **secrets-store.ts getGrouped() selector** — Creates new objects every call (Object.fromEntries + arrays) — not memoized. Causes performance issues with frequent re-renders. Needs selector optimization.
+
+### Code Quality
+- Check for `any` types in canvas/ directory
+- Verify pre-commit hook actually fails on 'use client' violations (unverified)
+- Verify all Zustand selectors avoid object creation (see getGrouped issue above)
+- Check 'use client' directive on hook-using components
+
+### Testing
+- Add axe-core integration for automated accessibility testing
+- Visual regression tests — no screenshot tests exist yet (KI-006)
+- Target >80% test coverage on changed files
+
+## 10. Remaining Open Items
+
+### Accessibility Gaps
+1. **Screen reader announcements** — Node/edge changes not announced. Need `aria-live="polite"` region.
+2. **Keyboard shortcut help dialog** — No dedicated dialog. Shortcuts exist in `useKeyboardShortcuts.ts` but no `aria-describedby` hints on buttons.
+3. **Edge anchor accessibility** — React Flow handles purely visual. Need ARIA annotations for screen readers.
+4. **Drag-and-drop keyboard alternative** — Mouse only. Need keyboard equivalent for node rearrangement.
+
+### Performance
+5. **secrets-store.ts getGrouped()** — Not memoized, creates new objects every call.