diff --git a/STATUS.md b/STATUS.md
index f14fd9a..f9c4163 100644
--- a/STATUS.md
+++ b/STATUS.md
@@ -20,6 +20,7 @@ Living progress tracker. Update at the end of each task. Codex and Claude Code b
 - **11 — Lists module**. Added `lists` and `list_items` schema + migration `0004_opposite_wraith.sql`, default Shopping/Tasks seeding on first access/sign-in/seed, household-gated list and item CRUD server actions, reorder support, and Postgres `LISTEN/NOTIFY` to SSE bridge documented in ADR `0002`. Added `/lists` grouped index, `/lists/[id]` keyboard-first item entry with checkbox toggles and swipe/delete, manifest entity/search/widget/quick-add registrations, and Playwright happy-path spec in `tests/e2e/lists.spec.ts`. `pnpm typecheck`, `pnpm lint`, and `pnpm build` pass.
 - **12 — Notes module**. Added generic core `reminders` table plus household-scoped `notes` schema in migration `0006_new_hannibal_king.sql`, notes CRUD server actions, reminder synchronization for `notes.note`, `/notes` index, `/notes/new`, `/notes/[id]` editor with safe markdown preview, manifest entity/search/reminder/share registration, `notes.filtered` widget registration, quick-add placeholder, and Playwright happy-path spec in `tests/e2e/notes.spec.ts`. `pnpm typecheck`, `pnpm lint`, `pnpm build`, and notes E2E pass.
 - **20 — Dashboard composition (single-dashboard MVP)**. Added `default_dashboard_layout` jsonb column to `users` + migration `0007_uneven_living_lightning.sql`. Created `src/modules/_core/manifest.tsx` (`core.activity` placeholder widget) and registered it. Updated all three module manifests (calendar, lists, notes) with real async server component widget renders (data-fetching, empty states). Created `src/lib/dashboard.ts` (layout parsing + `computeDefaultLayout` greedy packer). Built `src/app/page.tsx` — 12-col CSS Grid, static `smColSpan` lookup for Tailwind class safety, per-widget `<Suspense>` for parallel loading, graceful skip for unknown widget IDs. `pnpm typecheck`, `pnpm lint`, `pnpm build`, and all 4 E2E specs pass.
+- **21 — Quick-add registry**. Added `url: string` to `QuickAddAction` type (action is now optional). Added `getQuickAdds()` / `SerializedQuickAddItem` to registry (strips non-serializable `action` fn before crossing server→client boundary). Updated all three module manifests with navigation URLs. Built `QuickAddProvider` (context + cmd+k global shortcut), `QuickAddFab` (opens sheet, replaces plain button in dashboard), `QuickAddSheet` (bottom drawer / desktop popover grouped by module), and `CommandPalette` (cmdk-powered modal with arrow + enter + esc keyboard nav). Provider in root layout receives actions from `getQuickAdds()` at render time — adding a module's `quickAdds` automatically appears in both surfaces. Also added `.claude/**` to ESLint ignores to prevent stale worktree build artifacts from failing lint. `pnpm typecheck`, `pnpm lint`, `pnpm build`, and all 4 E2E specs pass.
 
 ## Next up
 
diff --git a/docs/tasks/21-quick-add.md b/docs/tasks/21-quick-add.md
index 701cd3d..980b546 100644
--- a/docs/tasks/21-quick-add.md
+++ b/docs/tasks/21-quick-add.md
@@ -22,5 +22,14 @@ A single global `+` button on the dashboard (and a `cmd+k` palette anywhere) tha
 
 ## Acceptance criteria
 
-- [ ] Adding a new module that registers a quick-add appears in both the FAB sheet and the cmd-k palette without touching core.
-- [ ] Keyboard navigation works in the palette (arrows + enter + escape).
+- [x] Adding a new module that registers a quick-add appears in both the FAB sheet and the cmd-k palette without touching core.
+- [x] Keyboard navigation works in the palette (arrows + enter + escape).
+
+## Implementation notes
+
+- `QuickAddAction` gained a `url: string` field; `action` made optional (future inline modals).
+- `SerializedQuickAddItem` strips the non-serializable `action` fn so it can cross the server→client RSC boundary as props to `QuickAddProvider`.
+- `getQuickAdds()` in the registry returns one `SerializedQuickAddItem` per registered quick-add, enriched with `moduleId` / `moduleName` for grouping.
+- Root layout calls `getQuickAdds()` and passes the result to `<QuickAddProvider>` which wraps the whole app. `<QuickAddSheet>` and `<CommandPalette>` live inside the provider and read from context.
+- `cmdk` installed for the command palette; keyboard shortcut (cmd/ctrl+k) wired via `useEffect` in the provider.
+- `.claude/**` added to ESLint ignores to prevent stale worktree `.next` build artifacts from failing lint.
diff --git a/eslint.config.mjs b/eslint.config.mjs
index 603845e..b10345d 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -8,6 +8,7 @@ export default tseslint.config(
     ignores: [
       "node_modules/**",
       ".next/**",
+      ".claude/**",
       "dist/**",
       "drizzle/**",
     ],
diff --git a/package.json b/package.json
index 305af78..049f41e 100644
--- a/package.json
+++ b/package.json
@@ -50,6 +50,7 @@
     "@fullcalendar/timegrid": "^6.1.20",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
+    "cmdk": "^1.1.1",
     "drizzle-orm": "^0.45.2",
     "lucide-react": "^1.14.0",
     "next": "^15.5.15",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 9da4b73..d876a75 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -35,6 +35,9 @@ importers:
       clsx:
         specifier: ^2.1.1
         version: 2.1.1
+      cmdk:
+        specifier: ^1.1.1
+        version: 1.1.1(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5)
       drizzle-orm:
         specifier: ^0.45.2
         version: 0.45.2(postgres@3.4.9)
@@ -1218,6 +1221,199 @@ packages:
     engines: {node: '>=18'}
     hasBin: true
 
+  '@radix-ui/primitive@1.1.3':
+    resolution: {integrity: sha512-JTF99U/6XIjCBo0wqkU5sK10glYe27MRRsfwoiq5zzOEZLHU3A3KCMa5X/azekYRCJ0HlwI0crAXS/5dEHTzDg==}
+
+  '@radix-ui/react-compose-refs@1.1.2':
+    resolution: {integrity: sha512-z4eqJvfiNnFMHIIvXP3CY57y2WJs5g2v3X0zm9mEJkrkNv4rDxu+sg9Jh8EkXyeqBkB7SOcboo9dMVqhyrACIg==}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+
+  '@radix-ui/react-context@1.1.2':
+    resolution: {integrity: sha512-jCi/QKUM2r1Ju5a3J64TH2A5SpKAgh0LpknyqdQ4m6DCV0xJ2HG1xARRwNGPQfi1SLdLWZ1OJz6F4OMBBNiGJA==}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+
+  '@radix-ui/react-dialog@1.1.15':
+    resolution: {integrity: sha512-TCglVRtzlffRNxRMEyR36DGBLJpeusFcgMVD9PZEzAKnUs1lKCgX5u9BmC2Yg+LL9MgZDugFFs1Vl+Jp4t/PGw==}
+    peerDependencies:
+      '@types/react': '*'
+      '@types/react-dom': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+      react-dom: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+      '@types/react-dom':
+        optional: true
+
+  '@radix-ui/react-dismissable-layer@1.1.11':
+    resolution: {integrity: sha512-Nqcp+t5cTB8BinFkZgXiMJniQH0PsUt2k51FUhbdfeKvc4ACcG2uQniY/8+h1Yv6Kza4Q7lD7PQV0z0oicE0Mg==}
+    peerDependencies:
+      '@types/react': '*'
+      '@types/react-dom': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+      react-dom: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+      '@types/react-dom':
+        optional: true
+
+  '@radix-ui/react-focus-guards@1.1.3':
+    resolution: {integrity: sha512-0rFg/Rj2Q62NCm62jZw0QX7a3sz6QCQU0LpZdNrJX8byRGaGVTqbrW9jAoIAHyMQqsNpeZ81YgSizOt5WXq0Pw==}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+
+  '@radix-ui/react-focus-scope@1.1.7':
+    resolution: {integrity: sha512-t2ODlkXBQyn7jkl6TNaw/MtVEVvIGelJDCG41Okq/KwUsJBwQ4XVZsHAVUkK4mBv3ewiAS3PGuUWuY2BoK4ZUw==}
+    peerDependencies:
+      '@types/react': '*'
+      '@types/react-dom': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+      react-dom: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+      '@types/react-dom':
+        optional: true
+
+  '@radix-ui/react-id@1.1.1':
+    resolution: {integrity: sha512-kGkGegYIdQsOb4XjsfM97rXsiHaBwco+hFI66oO4s9LU+PLAC5oJ7khdOVFxkhsmlbpUqDAvXw11CluXP+jkHg==}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+
+  '@radix-ui/react-portal@1.1.9':
+    resolution: {integrity: sha512-bpIxvq03if6UNwXZ+HTK71JLh4APvnXntDc6XOX8UVq4XQOVl7lwok0AvIl+b8zgCw3fSaVTZMpAPPagXbKmHQ==}
+    peerDependencies:
+      '@types/react': '*'
+      '@types/react-dom': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+      react-dom: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+      '@types/react-dom':
+        optional: true
+
+  '@radix-ui/react-presence@1.1.5':
+    resolution: {integrity: sha512-/jfEwNDdQVBCNvjkGit4h6pMOzq8bHkopq458dPt2lMjx+eBQUohZNG9A7DtO/O5ukSbxuaNGXMjHicgwy6rQQ==}
+    peerDependencies:
+      '@types/react': '*'
+      '@types/react-dom': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+      react-dom: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+      '@types/react-dom':
+        optional: true
+
+  '@radix-ui/react-primitive@2.1.3':
+    resolution: {integrity: sha512-m9gTwRkhy2lvCPe6QJp4d3G1TYEUHn/FzJUtq9MjH46an1wJU+GdoGC5VLof8RX8Ft/DlpshApkhswDLZzHIcQ==}
+    peerDependencies:
+      '@types/react': '*'
+      '@types/react-dom': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+      react-dom: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+      '@types/react-dom':
+        optional: true
+
+  '@radix-ui/react-primitive@2.1.4':
+    resolution: {integrity: sha512-9hQc4+GNVtJAIEPEqlYqW5RiYdrr8ea5XQ0ZOnD6fgru+83kqT15mq2OCcbe8KnjRZl5vF3ks69AKz3kh1jrhg==}
+    peerDependencies:
+      '@types/react': '*'
+      '@types/react-dom': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+      react-dom: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+      '@types/react-dom':
+        optional: true
+
+  '@radix-ui/react-slot@1.2.3':
+    resolution: {integrity: sha512-aeNmHnBxbi2St0au6VBVC7JXFlhLlOnvIIlePNniyUNAClzmtAUEY8/pBiK3iHjufOlwA+c20/8jngo7xcrg8A==}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+
+  '@radix-ui/react-slot@1.2.4':
+    resolution: {integrity: sha512-Jl+bCv8HxKnlTLVrcDE8zTMJ09R9/ukw4qBs/oZClOfoQk/cOTbDn+NceXfV7j09YPVQUryJPHurafcSg6EVKA==}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+
+  '@radix-ui/react-use-callback-ref@1.1.1':
+    resolution: {integrity: sha512-FkBMwD+qbGQeMu1cOHnuGB6x4yzPjho8ap5WtbEJ26umhgqVXbhekKUQO+hZEL1vU92a3wHwdp0HAcqAUF5iDg==}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+
+  '@radix-ui/react-use-controllable-state@1.2.2':
+    resolution: {integrity: sha512-BjasUjixPFdS+NKkypcyyN5Pmg83Olst0+c6vGov0diwTEo6mgdqVR6hxcEgFuh4QrAs7Rc+9KuGJ9TVCj0Zzg==}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+
+  '@radix-ui/react-use-effect-event@0.0.2':
+    resolution: {integrity: sha512-Qp8WbZOBe+blgpuUT+lw2xheLP8q0oatc9UpmiemEICxGvFLYmHm9QowVZGHtJlGbS6A6yJ3iViad/2cVjnOiA==}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+
+  '@radix-ui/react-use-escape-keydown@1.1.1':
+    resolution: {integrity: sha512-Il0+boE7w/XebUHyBjroE+DbByORGR9KKmITzbR7MyQ4akpORYP/ZmbhAr0DG7RmmBqoOnZdy2QlvajJ2QA59g==}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+
+  '@radix-ui/react-use-layout-effect@1.1.1':
+    resolution: {integrity: sha512-RbJRS4UWQFkzHTTwVymMTUv8EqYhOp8dOOviLj2ugtTiXRaRQS7GLGxZTLL1jWhMeoSCf5zmcZkqTl9IiYfXcQ==}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+
   '@rtsao/scc@1.1.0':
     resolution: {integrity: sha512-zt6OdqaDoOnJ1ZYsCYGt9YmWzDXl4vQdKTyJev62gFhRGKdx7mcT54V9KIjg+d2wi9EXsPvAPKe7i7WjfVWB8g==}
 
@@ -1567,6 +1763,10 @@ packages:
   argparse@2.0.1:
     resolution: {integrity: sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==}
 
+  aria-hidden@1.2.6:
+    resolution: {integrity: sha512-ik3ZgC9dY/lYVVM++OISsaYDeg1tb0VtP5uL3ouh1koGOaUMDPpbFIei4JkFimWUFPn90sbMNMXQAIVOlnYKJA==}
+    engines: {node: '>=10'}
+
   aria-query@5.3.2:
     resolution: {integrity: sha512-COROpnaoap1E2F000S62r6A60uHZnmlvomhfyT2DlTcrY1OrBKn2UhH7qn5wTC9zMvD0AY7csdPSNwKP+7WiQw==}
     engines: {node: '>= 0.4'}
@@ -1722,6 +1922,12 @@ packages:
     resolution: {integrity: sha512-eYm0QWBtUrBWZWG0d386OGAw16Z995PiOVo2B7bjWSbHedGl5e0ZWaq65kOGgUSNesEIDkB9ISbTg/JK9dhCZA==}
     engines: {node: '>=6'}
 
+  cmdk@1.1.1:
+    resolution: {integrity: sha512-Vsv7kFaXm+ptHDMZ7izaRsP70GgrW9NBNGswt9OZaVBLlE0SNpDq8eu/VGXyF9r7M0azK3Wy7OlYXsuyYLFzHg==}
+    peerDependencies:
+      react: ^18 || ^19 || ^19.0.0-rc
+      react-dom: ^18 || ^19 || ^19.0.0-rc
+
   code-block-writer@13.0.3:
     resolution: {integrity: sha512-Oofo0pq3IKnsFtuHqSF7TqBfr71aeyZDVJ0HpmqB7FBM2qEigL0iPONSCZSO9pE9dZTAxANe5XHG9Uy0YMv8cg==}
 
@@ -1870,6 +2076,9 @@ packages:
     resolution: {integrity: sha512-Btj2BOOO83o3WyH59e8MgXsxEQVcarkUOpEYrubB0urwnN10yQ364rsiByU11nZlqWYZm05i/of7io4mzihBtQ==}
     engines: {node: '>=8'}
 
+  detect-node-es@1.1.0:
+    resolution: {integrity: sha512-ypdmJU/TbBby2Dxibuv7ZLW3Bs1QEmM7nHjEANfohJLvE0XVujisn1qPJcZxg+qDucsr+bP6fLD1rPS3AhJ7EQ==}
+
   diff@8.0.4:
     resolution: {integrity: sha512-DPi0FmjiSU5EvQV0++GFDOJ9ASQUVFh5kD+OzOnYdi7n3Wpm9hWWGfB/O2blfHcMVTL5WkQXSnRiK9makhrcnw==}
     engines: {node: '>=0.3.1'}
@@ -2364,6 +2573,10 @@ packages:
     resolution: {integrity: sha512-9fSjSaos/fRIVIp+xSJlE6lfwhES7LNtKaCBIamHsjr2na1BiABJPo0mOjjz8GJDURarmCPGqaiVg5mfjb98CQ==}
     engines: {node: '>= 0.4'}
 
+  get-nonce@1.0.1:
+    resolution: {integrity: sha512-FJhYRoDaiatfEkUK8HKlicmu/3SGFD51q3itKDGoSTysQJBnfOcxU5GxnhE1E6soB76MbT0MBtnKJuXyAx+96Q==}
+    engines: {node: '>=6'}
+
   get-own-enumerable-keys@1.0.0:
     resolution: {integrity: sha512-PKsK2FSrQCyxcGHsGrLDcK0lx+0Ke+6e8KFFozA9/fIQLhQzPaRvJFdcz7+Axg3jUH/Mq+NI4xa5u/UT2tQskA==}
     engines: {node: '>=14.16'}
@@ -3247,6 +3460,36 @@ packages:
   react-is@16.13.1:
     resolution: {integrity: sha512-24e6ynE2H+OKt4kqsOvNd8kBpV65zoxbA4BVsEOB3ARVWQki/DHzaUoC5KuON/BiccDaCCTZBuOcfZs70kR8bQ==}
 
+  react-remove-scroll-bar@2.3.8:
+    resolution: {integrity: sha512-9r+yi9+mgU33AKcj6IbT9oRCO78WriSj6t/cF8DWBZJ9aOGPOTEDvdUDz1FwKim7QXWwmHqtdHnRJfhAxEG46Q==}
+    engines: {node: '>=10'}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+
+  react-remove-scroll@2.7.2:
+    resolution: {integrity: sha512-Iqb9NjCCTt6Hf+vOdNIZGdTiH1QSqr27H/Ek9sv/a97gfueI/5h1s3yRi1nngzMUaOOToin5dI1dXKdXiF+u0Q==}
+    engines: {node: '>=10'}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+
+  react-style-singleton@2.2.3:
+    resolution: {integrity: sha512-b6jSvxvVnyptAiLjbkWLE/lOnR4lfTtDAl+eUC7RZy+QQWc6wRzIV2CE6xBuMmDxc2qIihtDCZD5NPOFl7fRBQ==}
+    engines: {node: '>=10'}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+
   react@19.2.5:
     resolution: {integrity: sha512-llUJLzz1zTUBrskt2pwZgLq59AemifIftw4aB7JxOqf1HY2FDaGDxgwpAPVzHU1kdWabH7FauP4i1oEeer2WCA==}
     engines: {node: '>=0.10.0'}
@@ -3653,6 +3896,26 @@ packages:
   uri-js@4.4.1:
     resolution: {integrity: sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==}
 
+  use-callback-ref@1.3.3:
+    resolution: {integrity: sha512-jQL3lRnocaFtu3V00JToYz/4QkNWswxijDaCVNZRiRTO3HQDLsdu1ZtmIUvV4yPp+rvWm5j0y0TG/S61cuijTg==}
+    engines: {node: '>=10'}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+
+  use-sidecar@1.1.3:
+    resolution: {integrity: sha512-Fedw0aZvkhynoPYlA5WXrMCAMm+nSWdZt6lzJQ7Ok8S6Q+VsHmHpRWndVRJ8Be0ZbkfPc5LRYH+5XrzXcEeLRQ==}
+    engines: {node: '>=10'}
+    peerDependencies:
+      '@types/react': '*'
+      react: ^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0 || ^19.0.0-rc
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+
   use-sync-external-store@1.6.0:
     resolution: {integrity: sha512-Pp6GSwGP/NrPIrxVFAIkOQeyw8lFenOHijQWkUTrDvrF4ALqylP2C/KCkeS9dpUM3KvYRQhna5vt7IL95+ZQ9w==}
     peerDependencies:
@@ -4616,6 +4879,165 @@ snapshots:
     dependencies:
       playwright: 1.59.1
 
+  '@radix-ui/primitive@1.1.3': {}
+
+  '@radix-ui/react-compose-refs@1.1.2(@types/react@19.2.14)(react@19.2.5)':
+    dependencies:
+      react: 19.2.5
+    optionalDependencies:
+      '@types/react': 19.2.14
+
+  '@radix-ui/react-context@1.1.2(@types/react@19.2.14)(react@19.2.5)':
+    dependencies:
+      react: 19.2.5
+    optionalDependencies:
+      '@types/react': 19.2.14
+
+  '@radix-ui/react-dialog@1.1.15(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5)':
+    dependencies:
+      '@radix-ui/primitive': 1.1.3
+      '@radix-ui/react-compose-refs': 1.1.2(@types/react@19.2.14)(react@19.2.5)
+      '@radix-ui/react-context': 1.1.2(@types/react@19.2.14)(react@19.2.5)
+      '@radix-ui/react-dismissable-layer': 1.1.11(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5)
+      '@radix-ui/react-focus-guards': 1.1.3(@types/react@19.2.14)(react@19.2.5)
+      '@radix-ui/react-focus-scope': 1.1.7(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5)
+      '@radix-ui/react-id': 1.1.1(@types/react@19.2.14)(react@19.2.5)
+      '@radix-ui/react-portal': 1.1.9(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5)
+      '@radix-ui/react-presence': 1.1.5(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5)
+      '@radix-ui/react-primitive': 2.1.3(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5)
+      '@radix-ui/react-slot': 1.2.3(@types/react@19.2.14)(react@19.2.5)
+      '@radix-ui/react-use-controllable-state': 1.2.2(@types/react@19.2.14)(react@19.2.5)
+      aria-hidden: 1.2.6
+      react: 19.2.5
+      react-dom: 19.2.5(react@19.2.5)
+      react-remove-scroll: 2.7.2(@types/react@19.2.14)(react@19.2.5)
+    optionalDependencies:
+      '@types/react': 19.2.14
+      '@types/react-dom': 19.2.3(@types/react@19.2.14)
+
+  '@radix-ui/react-dismissable-layer@1.1.11(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5)':
+    dependencies:
+      '@radix-ui/primitive': 1.1.3
+      '@radix-ui/react-compose-refs': 1.1.2(@types/react@19.2.14)(react@19.2.5)
+      '@radix-ui/react-primitive': 2.1.3(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5)
+      '@radix-ui/react-use-callback-ref': 1.1.1(@types/react@19.2.14)(react@19.2.5)
+      '@radix-ui/react-use-escape-keydown': 1.1.1(@types/react@19.2.14)(react@19.2.5)
+      react: 19.2.5
+      react-dom: 19.2.5(react@19.2.5)
+    optionalDependencies:
+      '@types/react': 19.2.14
+      '@types/react-dom': 19.2.3(@types/react@19.2.14)
+
+  '@radix-ui/react-focus-guards@1.1.3(@types/react@19.2.14)(react@19.2.5)':
+    dependencies:
+      react: 19.2.5
+    optionalDependencies:
+      '@types/react': 19.2.14
+
+  '@radix-ui/react-focus-scope@1.1.7(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5)':
+    dependencies:
+      '@radix-ui/react-compose-refs': 1.1.2(@types/react@19.2.14)(react@19.2.5)
+      '@radix-ui/react-primitive': 2.1.3(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5)
+      '@radix-ui/react-use-callback-ref': 1.1.1(@types/react@19.2.14)(react@19.2.5)
+      react: 19.2.5
+      react-dom: 19.2.5(react@19.2.5)
+    optionalDependencies:
+      '@types/react': 19.2.14
+      '@types/react-dom': 19.2.3(@types/react@19.2.14)
+
+  '@radix-ui/react-id@1.1.1(@types/react@19.2.14)(react@19.2.5)':
+    dependencies:
+      '@radix-ui/react-use-layout-effect': 1.1.1(@types/react@19.2.14)(react@19.2.5)
+      react: 19.2.5
+    optionalDependencies:
+      '@types/react': 19.2.14
+
+  '@radix-ui/react-portal@1.1.9(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5)':
+    dependencies:
+      '@radix-ui/react-primitive': 2.1.3(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5)
+      '@radix-ui/react-use-layout-effect': 1.1.1(@types/react@19.2.14)(react@19.2.5)
+      react: 19.2.5
+      react-dom: 19.2.5(react@19.2.5)
+    optionalDependencies:
+      '@types/react': 19.2.14
+      '@types/react-dom': 19.2.3(@types/react@19.2.14)
+
+  '@radix-ui/react-presence@1.1.5(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5)':
+    dependencies:
+      '@radix-ui/react-compose-refs': 1.1.2(@types/react@19.2.14)(react@19.2.5)
+      '@radix-ui/react-use-layout-effect': 1.1.1(@types/react@19.2.14)(react@19.2.5)
+      react: 19.2.5
+      react-dom: 19.2.5(react@19.2.5)
+    optionalDependencies:
+      '@types/react': 19.2.14
+      '@types/react-dom': 19.2.3(@types/react@19.2.14)
+
+  '@radix-ui/react-primitive@2.1.3(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5)':
+    dependencies:
+      '@radix-ui/react-slot': 1.2.3(@types/react@19.2.14)(react@19.2.5)
+      react: 19.2.5
+      react-dom: 19.2.5(react@19.2.5)
+    optionalDependencies:
+      '@types/react': 19.2.14
+      '@types/react-dom': 19.2.3(@types/react@19.2.14)
+
+  '@radix-ui/react-primitive@2.1.4(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5)':
+    dependencies:
+      '@radix-ui/react-slot': 1.2.4(@types/react@19.2.14)(react@19.2.5)
+      react: 19.2.5
+      react-dom: 19.2.5(react@19.2.5)
+    optionalDependencies:
+      '@types/react': 19.2.14
+      '@types/react-dom': 19.2.3(@types/react@19.2.14)
+
+  '@radix-ui/react-slot@1.2.3(@types/react@19.2.14)(react@19.2.5)':
+    dependencies:
+      '@radix-ui/react-compose-refs': 1.1.2(@types/react@19.2.14)(react@19.2.5)
+      react: 19.2.5
+    optionalDependencies:
+      '@types/react': 19.2.14
+
+  '@radix-ui/react-slot@1.2.4(@types/react@19.2.14)(react@19.2.5)':
+    dependencies:
+      '@radix-ui/react-compose-refs': 1.1.2(@types/react@19.2.14)(react@19.2.5)
+      react: 19.2.5
+    optionalDependencies:
+      '@types/react': 19.2.14
+
+  '@radix-ui/react-use-callback-ref@1.1.1(@types/react@19.2.14)(react@19.2.5)':
+    dependencies:
+      react: 19.2.5
+    optionalDependencies:
+      '@types/react': 19.2.14
+
+  '@radix-ui/react-use-controllable-state@1.2.2(@types/react@19.2.14)(react@19.2.5)':
+    dependencies:
+      '@radix-ui/react-use-effect-event': 0.0.2(@types/react@19.2.14)(react@19.2.5)
+      '@radix-ui/react-use-layout-effect': 1.1.1(@types/react@19.2.14)(react@19.2.5)
+      react: 19.2.5
+    optionalDependencies:
+      '@types/react': 19.2.14
+
+  '@radix-ui/react-use-effect-event@0.0.2(@types/react@19.2.14)(react@19.2.5)':
+    dependencies:
+      '@radix-ui/react-use-layout-effect': 1.1.1(@types/react@19.2.14)(react@19.2.5)
+      react: 19.2.5
+    optionalDependencies:
+      '@types/react': 19.2.14
+
+  '@radix-ui/react-use-escape-keydown@1.1.1(@types/react@19.2.14)(react@19.2.5)':
+    dependencies:
+      '@radix-ui/react-use-callback-ref': 1.1.1(@types/react@19.2.14)(react@19.2.5)
+      react: 19.2.5
+    optionalDependencies:
+      '@types/react': 19.2.14
+
+  '@radix-ui/react-use-layout-effect@1.1.1(@types/react@19.2.14)(react@19.2.5)':
+    dependencies:
+      react: 19.2.5
+    optionalDependencies:
+      '@types/react': 19.2.14
+
   '@rtsao/scc@1.1.0': {}
 
   '@sec-ant/readable-stream@0.4.1': {}
@@ -4923,6 +5345,10 @@ snapshots:
 
   argparse@2.0.1: {}
 
+  aria-hidden@1.2.6:
+    dependencies:
+      tslib: 2.8.1
+
   aria-query@5.3.2: {}
 
   array-buffer-byte-length@1.0.2:
@@ -5107,6 +5533,18 @@ snapshots:
 
   clsx@2.1.1: {}
 
+  cmdk@1.1.1(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5):
+    dependencies:
+      '@radix-ui/react-compose-refs': 1.1.2(@types/react@19.2.14)(react@19.2.5)
+      '@radix-ui/react-dialog': 1.1.15(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5)
+      '@radix-ui/react-id': 1.1.1(@types/react@19.2.14)(react@19.2.5)
+      '@radix-ui/react-primitive': 2.1.4(@types/react-dom@19.2.3(@types/react@19.2.14))(@types/react@19.2.14)(react-dom@19.2.5(react@19.2.5))(react@19.2.5)
+      react: 19.2.5
+      react-dom: 19.2.5(react@19.2.5)
+    transitivePeerDependencies:
+      - '@types/react'
+      - '@types/react-dom'
+
   code-block-writer@13.0.3: {}
 
   color-convert@2.0.1:
@@ -5218,6 +5656,8 @@ snapshots:
 
   detect-libc@2.1.2: {}
 
+  detect-node-es@1.1.0: {}
+
   diff@8.0.4: {}
 
   doctrine@2.1.0:
@@ -5885,6 +6325,8 @@ snapshots:
       hasown: 2.0.3
       math-intrinsics: 1.1.0
 
+  get-nonce@1.0.1: {}
+
   get-own-enumerable-keys@1.0.0: {}
 
   get-proto@1.0.1:
@@ -6678,6 +7120,33 @@ snapshots:
 
   react-is@16.13.1: {}
 
+  react-remove-scroll-bar@2.3.8(@types/react@19.2.14)(react@19.2.5):
+    dependencies:
+      react: 19.2.5
+      react-style-singleton: 2.2.3(@types/react@19.2.14)(react@19.2.5)
+      tslib: 2.8.1
+    optionalDependencies:
+      '@types/react': 19.2.14
+
+  react-remove-scroll@2.7.2(@types/react@19.2.14)(react@19.2.5):
+    dependencies:
+      react: 19.2.5
+      react-remove-scroll-bar: 2.3.8(@types/react@19.2.14)(react@19.2.5)
+      react-style-singleton: 2.2.3(@types/react@19.2.14)(react@19.2.5)
+      tslib: 2.8.1
+      use-callback-ref: 1.3.3(@types/react@19.2.14)(react@19.2.5)
+      use-sidecar: 1.1.3(@types/react@19.2.14)(react@19.2.5)
+    optionalDependencies:
+      '@types/react': 19.2.14
+
+  react-style-singleton@2.2.3(@types/react@19.2.14)(react@19.2.5):
+    dependencies:
+      get-nonce: 1.0.1
+      react: 19.2.5
+      tslib: 2.8.1
+    optionalDependencies:
+      '@types/react': 19.2.14
+
   react@19.2.5: {}
 
   recast@0.23.11:
@@ -7239,6 +7708,21 @@ snapshots:
     dependencies:
       punycode: 2.3.1
 
+  use-callback-ref@1.3.3(@types/react@19.2.14)(react@19.2.5):
+    dependencies:
+      react: 19.2.5
+      tslib: 2.8.1
+    optionalDependencies:
+      '@types/react': 19.2.14
+
+  use-sidecar@1.1.3(@types/react@19.2.14)(react@19.2.5):
+    dependencies:
+      detect-node-es: 1.1.0
+      react: 19.2.5
+      tslib: 2.8.1
+    optionalDependencies:
+      '@types/react': 19.2.14
+
   use-sync-external-store@1.6.0(react@19.2.5):
     dependencies:
       react: 19.2.5
diff --git a/src/app/layout.tsx b/src/app/layout.tsx
index 252e673..37742b8 100644
--- a/src/app/layout.tsx
+++ b/src/app/layout.tsx
@@ -8,6 +8,10 @@ import { auth } from "@/lib/auth";
 import { db } from "@/lib/db";
 import { eq } from "drizzle-orm";
 import { users } from "@/modules/_core/schema";
+import { getQuickAdds } from "@/modules/_core";
+import { QuickAddProvider } from "@/components/quick-add-provider";
+import { QuickAddSheet } from "@/components/quick-add-sheet";
+import { CommandPalette } from "@/components/command-palette";
 
 const geist = Geist({ subsets: ["latin"], variable: "--font-sans" });
 
@@ -54,6 +58,8 @@ export default async function RootLayout({
   // script will correct it before paint. We optimistically render light here.
   const isDark = themeMode === "dark";
 
+  const quickAdds = getQuickAdds();
+
   return (
     <html
       lang="en"
@@ -64,8 +70,12 @@ export default async function RootLayout({
         <script dangerouslySetInnerHTML={{ __html: prePaintScript }} />
       </head>
       <body className="min-h-screen">
-        <AppNav />
-        <main>{children}</main>
+        <QuickAddProvider actions={quickAdds}>
+          <AppNav />
+          <main>{children}</main>
+          <QuickAddSheet />
+          <CommandPalette />
+        </QuickAddProvider>
       </body>
     </html>
   );
diff --git a/src/app/page.tsx b/src/app/page.tsx
index b1c48d4..85339af 100644
--- a/src/app/page.tsx
+++ b/src/app/page.tsx
@@ -6,6 +6,7 @@ import { getCurrentSession } from "@/lib/session";
 import { getWidget } from "@/modules/_core";
 import { users } from "@/modules/_core/schema";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
+import { QuickAddFab } from "@/components/quick-add-fab";
 
 // Static lookup ensures Tailwind sees all sm:col-span-* classes at build time.
 const smColSpan: Record<number, string> = {
@@ -43,13 +44,7 @@ export default async function DashboardPage() {
     <div className="p-4 sm:p-6">
       <div className="mb-6 flex items-center justify-between">
         <h1 className="text-2xl font-bold">Dashboard</h1>
-        {/* Quick-add FAB — wired up in task 21 */}
-        <button
-          aria-label="Quick add"
-          className="flex h-10 w-10 items-center justify-center rounded-full bg-primary text-primary-foreground shadow-md transition-opacity hover:opacity-90"
-        >
-          <span className="text-xl leading-none">+</span>
-        </button>
+        <QuickAddFab />
       </div>
 
       <div className="grid grid-cols-1 gap-4 sm:grid-cols-12">
diff --git a/src/components/command-palette.tsx b/src/components/command-palette.tsx
new file mode 100644
index 0000000..d1c6b81
--- /dev/null
+++ b/src/components/command-palette.tsx
@@ -0,0 +1,118 @@
+"use client";
+
+import { useEffect, useRef } from "react";
+import { Command } from "cmdk";
+import { useRouter } from "next/navigation";
+import { useQuickAdd } from "./quick-add-provider";
+
+export function CommandPalette() {
+  const { paletteOpen, closePalette, actions } = useQuickAdd();
+  const router = useRouter();
+  const inputRef = useRef<HTMLInputElement>(null);
+
+  useEffect(() => {
+    if (paletteOpen) {
+      // Let the DOM mount, then focus
+      setTimeout(() => inputRef.current?.focus(), 0);
+    }
+  }, [paletteOpen]);
+
+  if (!paletteOpen) return null;
+
+  function handleSelect(url: string) {
+    closePalette();
+    router.push(url);
+  }
+
+  return (
+    <>
+      {/* Backdrop */}
+      <div
+        className="fixed inset-0 z-50 bg-black/50"
+        onClick={closePalette}
+        aria-hidden="true"
+      />
+
+      {/* Palette modal */}
+      <div
+        role="dialog"
+        aria-modal="true"
+        aria-label="Command palette"
+        className="fixed left-1/2 top-1/4 z-50 w-full max-w-md -translate-x-1/2 rounded-xl bg-background shadow-2xl ring-1 ring-border"
+      >
+        <Command
+          className="flex flex-col overflow-hidden rounded-xl"
+          onKeyDown={(e) => {
+            if (e.key === "Escape") {
+              e.preventDefault();
+              closePalette();
+            }
+          }}
+        >
+          <div className="border-b px-3 py-2">
+            <Command.Input
+              ref={inputRef}
+              placeholder="Quick add…"
+              className="w-full bg-transparent py-1 text-sm outline-none placeholder:text-muted-foreground"
+            />
+          </div>
+
+          <Command.List className="max-h-80 overflow-y-auto p-2">
+            <Command.Empty className="px-3 py-6 text-center text-sm text-muted-foreground">
+              No actions found.
+            </Command.Empty>
+
+            {groupByModule(actions).map(([moduleId, group]) => (
+              <Command.Group key={moduleId} heading={group.name}>
+                {group.items.map((action) => (
+                  <Command.Item
+                    key={action.id}
+                    value={`${action.moduleName} ${action.label}`}
+                    onSelect={() => handleSelect(action.url)}
+                    className="flex cursor-pointer items-center gap-3 rounded-lg px-3 py-2 text-sm aria-selected:bg-accent aria-selected:text-accent-foreground"
+                  >
+                    <span className="text-base leading-none">{iconEmoji(action.icon)}</span>
+                    {action.label}
+                  </Command.Item>
+                ))}
+              </Command.Group>
+            ))}
+          </Command.List>
+
+          <div className="border-t px-3 py-2 text-xs text-muted-foreground">
+            <kbd className="rounded border px-1 py-0.5 font-mono">↑↓</kbd> navigate ·{" "}
+            <kbd className="rounded border px-1 py-0.5 font-mono">↵</kbd> select ·{" "}
+            <kbd className="rounded border px-1 py-0.5 font-mono">esc</kbd> close
+          </div>
+        </Command>
+      </div>
+    </>
+  );
+}
+
+type GroupEntry = [string, { name: string; items: import("@/modules/_core").SerializedQuickAddItem[] }];
+
+function groupByModule(
+  actions: import("@/modules/_core").SerializedQuickAddItem[],
+): GroupEntry[] {
+  const map = new Map<string, { name: string; items: import("@/modules/_core").SerializedQuickAddItem[] }>();
+  for (const action of actions) {
+    if (!map.has(action.moduleId)) {
+      map.set(action.moduleId, { name: action.moduleName, items: [] });
+    }
+    map.get(action.moduleId)!.items.push(action);
+  }
+  return [...map.entries()];
+}
+
+function iconEmoji(icon?: string): string {
+  const map: Record<string, string> = {
+    "calendar-plus": "📅",
+    "calendar-days": "🗓️",
+    "shopping-cart": "🛒",
+    "list-checks": "✅",
+    "list-plus": "📋",
+    "file-plus": "📝",
+  };
+  return icon ? (map[icon] ?? "➕") : "➕";
+}
diff --git a/src/components/quick-add-fab.tsx b/src/components/quick-add-fab.tsx
new file mode 100644
index 0000000..6ffa04e
--- /dev/null
+++ b/src/components/quick-add-fab.tsx
@@ -0,0 +1,17 @@
+"use client";
+
+import { useQuickAdd } from "./quick-add-provider";
+
+export function QuickAddFab() {
+  const { openSheet } = useQuickAdd();
+
+  return (
+    <button
+      aria-label="Quick add"
+      onClick={openSheet}
+      className="flex h-10 w-10 items-center justify-center rounded-full bg-primary text-primary-foreground shadow-md transition-opacity hover:opacity-90"
+    >
+      <span className="text-xl leading-none">+</span>
+    </button>
+  );
+}
diff --git a/src/components/quick-add-provider.tsx b/src/components/quick-add-provider.tsx
new file mode 100644
index 0000000..0fb08e0
--- /dev/null
+++ b/src/components/quick-add-provider.tsx
@@ -0,0 +1,57 @@
+"use client";
+
+import { createContext, useCallback, useContext, useEffect, useState } from "react";
+import type { SerializedQuickAddItem } from "@/modules/_core";
+
+type QuickAddState = {
+  sheetOpen: boolean;
+  paletteOpen: boolean;
+  openSheet: () => void;
+  closeSheet: () => void;
+  openPalette: () => void;
+  closePalette: () => void;
+  actions: SerializedQuickAddItem[];
+};
+
+const QuickAddContext = createContext<QuickAddState | null>(null);
+
+export function useQuickAdd() {
+  const ctx = useContext(QuickAddContext);
+  if (!ctx) throw new Error("useQuickAdd must be used inside QuickAddProvider");
+  return ctx;
+}
+
+export function QuickAddProvider({
+  children,
+  actions,
+}: {
+  children: React.ReactNode;
+  actions: SerializedQuickAddItem[];
+}) {
+  const [sheetOpen, setSheetOpen] = useState(false);
+  const [paletteOpen, setPaletteOpen] = useState(false);
+
+  const openSheet = useCallback(() => setSheetOpen(true), []);
+  const closeSheet = useCallback(() => setSheetOpen(false), []);
+  const openPalette = useCallback(() => setPaletteOpen(true), []);
+  const closePalette = useCallback(() => setPaletteOpen(false), []);
+
+  useEffect(() => {
+    function onKeyDown(e: KeyboardEvent) {
+      if ((e.metaKey || e.ctrlKey) && e.key === "k") {
+        e.preventDefault();
+        setPaletteOpen((prev) => !prev);
+      }
+    }
+    document.addEventListener("keydown", onKeyDown);
+    return () => document.removeEventListener("keydown", onKeyDown);
+  }, []);
+
+  return (
+    <QuickAddContext.Provider
+      value={{ sheetOpen, paletteOpen, openSheet, closeSheet, openPalette, closePalette, actions }}
+    >
+      {children}
+    </QuickAddContext.Provider>
+  );
+}
diff --git a/src/components/quick-add-sheet.tsx b/src/components/quick-add-sheet.tsx
new file mode 100644
index 0000000..64d3433
--- /dev/null
+++ b/src/components/quick-add-sheet.tsx
@@ -0,0 +1,104 @@
+"use client";
+
+import { useEffect, useRef } from "react";
+import { useRouter } from "next/navigation";
+import { useQuickAdd } from "./quick-add-provider";
+import type { SerializedQuickAddItem } from "@/modules/_core";
+
+function groupByModule(actions: SerializedQuickAddItem[]): Map<string, { name: string; items: SerializedQuickAddItem[] }> {
+  const map = new Map<string, { name: string; items: SerializedQuickAddItem[] }>();
+  for (const action of actions) {
+    if (!map.has(action.moduleId)) {
+      map.set(action.moduleId, { name: action.moduleName, items: [] });
+    }
+    map.get(action.moduleId)!.items.push(action);
+  }
+  return map;
+}
+
+export function QuickAddSheet() {
+  const { sheetOpen, closeSheet, actions } = useQuickAdd();
+  const router = useRouter();
+  const backdropRef = useRef<HTMLDivElement>(null);
+
+  useEffect(() => {
+    if (!sheetOpen) return;
+    function onKey(e: KeyboardEvent) {
+      if (e.key === "Escape") closeSheet();
+    }
+    document.addEventListener("keydown", onKey);
+    return () => document.removeEventListener("keydown", onKey);
+  }, [sheetOpen, closeSheet]);
+
+  if (!sheetOpen) return null;
+
+  const groups = groupByModule(actions);
+
+  function handleAction(url: string) {
+    closeSheet();
+    router.push(url);
+  }
+
+  return (
+    <>
+      {/* Backdrop */}
+      <div
+        ref={backdropRef}
+        className="fixed inset-0 z-40 bg-black/40"
+        onClick={closeSheet}
+        aria-hidden="true"
+      />
+
+      {/* Sheet panel — bottom on mobile, right-anchored popover on sm+ */}
+      <div
+        role="dialog"
+        aria-modal="true"
+        aria-label="Quick add"
+        className="fixed bottom-0 left-0 right-0 z-50 rounded-t-2xl bg-background shadow-xl sm:bottom-auto sm:left-auto sm:right-6 sm:top-16 sm:w-72 sm:rounded-xl"
+      >
+        <div className="flex items-center justify-between border-b px-4 py-3">
+          <span className="text-sm font-semibold">Quick add</span>
+          <button
+            onClick={closeSheet}
+            aria-label="Close quick add"
+            className="rounded p-1 text-muted-foreground hover:bg-muted"
+          >
+            ✕
+          </button>
+        </div>
+
+        <div className="max-h-[60vh] overflow-y-auto p-2 sm:max-h-96">
+          {[...groups.entries()].map(([moduleId, group]) => (
+            <div key={moduleId} className="mb-2">
+              <p className="px-2 py-1 text-xs font-medium uppercase tracking-wide text-muted-foreground">
+                {group.name}
+              </p>
+              {group.items.map((action) => (
+                <button
+                  key={action.id}
+                  onClick={() => handleAction(action.url)}
+                  className="flex w-full items-center gap-3 rounded-lg px-3 py-2 text-sm hover:bg-accent hover:text-accent-foreground"
+                >
+                  <span className="text-base leading-none">{iconEmoji(action.icon)}</span>
+                  {action.label}
+                </button>
+              ))}
+            </div>
+          ))}
+        </div>
+      </div>
+    </>
+  );
+}
+
+function iconEmoji(icon?: string): string {
+  const map: Record<string, string> = {
+    "calendar-plus": "📅",
+    "calendar-days": "🗓️",
+    "shopping-cart": "🛒",
+    "list-checks": "✅",
+    "list-plus": "📋",
+    "file-plus": "📝",
+  };
+  return icon ? (map[icon] ?? "➕") : "➕";
+}
diff --git a/src/modules/_core/index.ts b/src/modules/_core/index.ts
index fd530eb..1452c7d 100644
--- a/src/modules/_core/index.ts
+++ b/src/modules/_core/index.ts
@@ -9,4 +9,5 @@ export type {
   SearchAdapter,
   SearchResult,
 } from "./module";
-export { registerModule, getRegistry, getEntityType, getWidget } from "./registry";
+export { registerModule, getRegistry, getEntityType, getWidget, getQuickAdds } from "./registry";
+export type { QuickAddItem, SerializedQuickAddItem } from "./registry";
diff --git a/src/modules/_core/module.ts b/src/modules/_core/module.ts
index e35f3b2..0561f82 100644
--- a/src/modules/_core/module.ts
+++ b/src/modules/_core/module.ts
@@ -45,7 +45,9 @@ export type QuickAddAction = {
   id: string;
   label: string;
   icon?: string;
-  action: (ctx: WidgetContext) => void | Promise<void>;
+  /** Navigation target used by the FAB sheet and command palette. */
+  url: string;
+  action?: (ctx: WidgetContext) => void | Promise<void>;
 };
 
 export type EntityTypeRegistration = {
diff --git a/src/modules/_core/registry.ts b/src/modules/_core/registry.ts
index 7cb98a3..83d4b0c 100644
--- a/src/modules/_core/registry.ts
+++ b/src/modules/_core/registry.ts
@@ -1,4 +1,4 @@
-import type { ModuleManifest, EntityTypeRegistration, DashboardWidget } from "./module";
+import type { ModuleManifest, EntityTypeRegistration, DashboardWidget, QuickAddAction } from "./module";
 
 const modules = new Map<string, ModuleManifest>();
 const entityTypes = new Map<string, EntityTypeRegistration>();
@@ -29,3 +29,28 @@ export function getEntityType(type: string): EntityTypeRegistration | undefined
 export function getWidget(id: string): DashboardWidget | undefined {
   return widgets.get(id);
 }
+
+export type QuickAddItem = QuickAddAction & { moduleId: string; moduleName: string };
+
+/** Serializable subset safe to pass from server components to client components. */
+export type SerializedQuickAddItem = {
+  id: string;
+  label: string;
+  icon?: string;
+  url: string;
+  moduleId: string;
+  moduleName: string;
+};
+
+export function getQuickAdds(): SerializedQuickAddItem[] {
+  return [...modules.values()].flatMap((manifest) =>
+    (manifest.quickAdds ?? []).map(({ id, label, icon, url }) => ({
+      id,
+      label,
+      icon,
+      url,
+      moduleId: manifest.id,
+      moduleName: manifest.name,
+    })),
+  );
+}
diff --git a/src/modules/calendar/manifest.tsx b/src/modules/calendar/manifest.tsx
index 83f39f5..3c50b90 100644
--- a/src/modules/calendar/manifest.tsx
+++ b/src/modules/calendar/manifest.tsx
@@ -156,13 +156,13 @@ const manifest: ModuleManifest = {
       id: "calendar.new-event",
       label: "New event",
       icon: "calendar-plus",
-      action: () => undefined,
+      url: "/calendar",
     },
     {
       id: "calendar.new-calendar",
       label: "New calendar",
       icon: "calendar-days",
-      action: () => undefined,
+      url: "/calendar",
     },
   ],
 };
diff --git a/src/modules/lists/manifest.tsx b/src/modules/lists/manifest.tsx
index 79e4f60..bc09ffa 100644
--- a/src/modules/lists/manifest.tsx
+++ b/src/modules/lists/manifest.tsx
@@ -1,6 +1,5 @@
 import type { ModuleManifest, WidgetContext } from "../_core/module";
 import { z } from "zod";
-import { addItemToDefaultList } from "./server/actions";
 import { listLists, listWidgetItems, searchItems, searchLists } from "./server/queries";
 
 const listIdsSchema = z.union([z.literal("all"), z.array(z.string().uuid())]);
@@ -90,23 +89,19 @@ const manifest: ModuleManifest = {
       id: "lists.add-shopping",
       label: "Add to shopping",
       icon: "shopping-cart",
-      action: async () => {
-        await addItemToDefaultList({ type: "shopping", text: "New item" });
-      },
+      url: "/lists",
     },
     {
       id: "lists.add-task",
       label: "Add to tasks",
       icon: "list-checks",
-      action: async () => {
-        await addItemToDefaultList({ type: "task", text: "New task" });
-      },
+      url: "/lists",
     },
     {
       id: "lists.new-list",
       label: "New list",
       icon: "list-plus",
-      action: () => undefined,
+      url: "/lists",
     },
   ],
 };
diff --git a/src/modules/notes/manifest.tsx b/src/modules/notes/manifest.tsx
index d8769e8..544bdcc 100644
--- a/src/modules/notes/manifest.tsx
+++ b/src/modules/notes/manifest.tsx
@@ -67,7 +67,7 @@ const manifest: ModuleManifest = {
       id: "notes.new-note",
       label: "New note",
       icon: "file-plus",
-      action: () => undefined,
+      url: "/notes/new",
     },
   ],
 };