diff --git a/apps/app/package.json b/apps/app/package.json
index 922d0be0ee..8d89bcd1ad 100644
--- a/apps/app/package.json
+++ b/apps/app/package.json
@@ -33,7 +33,8 @@
     "bump:patch": "node scripts/bump-version.mjs patch",
     "bump:minor": "node scripts/bump-version.mjs minor",
     "bump:major": "node scripts/bump-version.mjs major",
-    "bump:set": "node scripts/bump-version.mjs --set"
+    "bump:set": "node scripts/bump-version.mjs --set",
+    "lint:biome": "biome lint ."
   },
   "dependencies": {
     "@ai-sdk/react": "^3.0.148",
diff --git a/apps/desktop/package.json b/apps/desktop/package.json
index 5c0e5810b7..cb121e5650 100644
--- a/apps/desktop/package.json
+++ b/apps/desktop/package.json
@@ -22,7 +22,8 @@
     "electron": "pnpm exec electron ./electron/main.mjs",
     "check:electron": "node ./scripts/check-electron-bridge.mjs",
     "typecheck:electron": "pnpm --dir ../server exec tsc -p ../desktop/tsconfig.electron.json --noEmit",
-    "prepare:sidecar": "node ./scripts/prepare-sidecar.mjs"
+    "prepare:sidecar": "node ./scripts/prepare-sidecar.mjs",
+    "lint:biome": "biome lint ."
   },
   "dependencies": {
     "chrome-devtools-mcp": "0.17.0",
diff --git a/apps/opencode-router/package.json b/apps/opencode-router/package.json
index 2cd8f82b9d..d4b28fc96d 100644
--- a/apps/opencode-router/package.json
+++ b/apps/opencode-router/package.json
@@ -41,7 +41,8 @@
     "test:unit": "pnpm build && bun test test/*.test.js",
     "test:smoke": "bun scripts/smoke.mjs",
     "test:cli": "pnpm build && bun scripts/test-cli.mjs",
-    "test:npx": "bun scripts/test-npx.mjs"
+    "test:npx": "bun scripts/test-npx.mjs",
+    "lint:biome": "biome lint ."
   },
   "dependencies": {
     "@opencode-ai/sdk": "^1.14.38",
diff --git a/apps/orchestrator/package.json b/apps/orchestrator/package.json
index 7187e42c5a..445480a898 100644
--- a/apps/orchestrator/package.json
+++ b/apps/orchestrator/package.json
@@ -14,7 +14,8 @@
     "typecheck": "tsc -p tsconfig.typecheck.json",
     "test:router": "pnpm build && node scripts/router.mjs",
     "test:files": "pnpm build && node scripts/files-session.mjs",
-    "prepublishOnly": "node -e \"console.error('openwork-orchestrator is published via apps/orchestrator/scripts/publish-npm.mjs (meta + platform packages)'); process.exit(1);\""
+    "prepublishOnly": "node -e \"console.error('openwork-orchestrator is published via apps/orchestrator/scripts/publish-npm.mjs (meta + platform packages)'); process.exit(1);\"",
+    "lint:biome": "biome lint ."
   },
   "files": [
     "dist",
diff --git a/apps/server-v2/package.json b/apps/server-v2/package.json
index 224d52d281..07e89cf6e3 100644
--- a/apps/server-v2/package.json
+++ b/apps/server-v2/package.json
@@ -19,7 +19,8 @@
     "build:bin:embedded:windows": "bun ./script/build.ts --outdir dist/bin --filename openwork-server-v2 --embed-runtime --target bun-windows-x64",
     "build:bin:all": "bun ./script/build.ts --outdir dist/bin --filename openwork-server-v2 --target bun-darwin-arm64 --target bun-darwin-x64-baseline --target bun-linux-x64-baseline --target bun-linux-arm64 --target bun-windows-x64",
     "build:bin:embedded:all": "bun ./script/build.ts --outdir dist/bin --filename openwork-server-v2 --embed-runtime --target bun-darwin-arm64 --target bun-darwin-x64-baseline --target bun-linux-x64-baseline --target bun-linux-arm64 --target bun-windows-x64",
-    "prepublishOnly": "pnpm openapi:generate && pnpm build:bin"
+    "prepublishOnly": "pnpm openapi:generate && pnpm build:bin",
+    "lint:biome": "biome lint ."
   },
   "files": [
     "bin",
diff --git a/apps/server/package.json b/apps/server/package.json
index faa5f9e569..00bd86b82a 100644
--- a/apps/server/package.json
+++ b/apps/server/package.json
@@ -14,7 +14,8 @@
     "build:bin:all": "bun ./script/build.ts --outdir dist/bin --target bun-darwin-arm64 --target bun-darwin-x64 --target bun-linux-x64 --target bun-linux-arm64 --target bun-windows-x64",
     "start": "bun dist/cli.js",
     "typecheck": "tsc -p tsconfig.json --noEmit",
-    "prepublishOnly": "pnpm build:bin"
+    "prepublishOnly": "pnpm build:bin",
+    "lint:biome": "biome lint ."
   },
   "files": [
     "bin",
diff --git a/apps/share/package.json b/apps/share/package.json
index 1d7083eb05..f8f44e7bcf 100644
--- a/apps/share/package.json
+++ b/apps/share/package.json
@@ -8,7 +8,8 @@
     "build": "next build",
     "start": "next start --hostname 0.0.0.0",
     "test": "node --test server/b/render-bundle-page.test.ts server/_lib/package-openwork-files.test.ts server/_lib/publish-security.test.ts server/_lib/render-og-image.test.ts server/_lib/share-utils.test.ts",
-    "test:e2e": "playwright test"
+    "test:e2e": "playwright test",
+    "lint:biome": "biome lint ."
   },
   "dependencies": {
     "@vercel/blob": "^0.27.0",
diff --git a/apps/story-book/package.json b/apps/story-book/package.json
index 3b9661581c..4d267ba91f 100644
--- a/apps/story-book/package.json
+++ b/apps/story-book/package.json
@@ -7,7 +7,8 @@
     "dev": "vite",
     "build": "vite build",
     "preview": "vite preview",
-    "typecheck": "tsc -p tsconfig.json --noEmit"
+    "typecheck": "tsc -p tsconfig.json --noEmit",
+    "lint:biome": "biome lint ."
   },
   "devDependencies": {
     "@tailwindcss/vite": "^4.1.18",
diff --git a/apps/ui-demo/package.json b/apps/ui-demo/package.json
index 2cb9bde604..48f382a0f0 100644
--- a/apps/ui-demo/package.json
+++ b/apps/ui-demo/package.json
@@ -7,7 +7,8 @@
     "dev": "pnpm --dir ../../packages/ui build && vite --host 0.0.0.0 --port 3333 --strictPort",
     "build": "pnpm --dir ../../packages/ui build && vite build",
     "preview": "vite preview --host 0.0.0.0 --port 3333 --strictPort",
-    "typecheck": "pnpm --dir ../../packages/ui build && tsc -p tsconfig.json --noEmit"
+    "typecheck": "pnpm --dir ../../packages/ui build && tsc -p tsconfig.json --noEmit",
+    "lint:biome": "biome lint ."
   },
   "dependencies": {
     "@openwork/ui": "workspace:*",
diff --git a/biome.json b/biome.json
new file mode 100644
index 0000000000..a738625370
--- /dev/null
+++ b/biome.json
@@ -0,0 +1,54 @@
+{
+  "$schema": "https://biomejs.dev/schemas/2.4.14/schema.json",
+  "vcs": {
+    "enabled": true,
+    "clientKind": "git",
+    "useIgnoreFile": true
+  },
+  "files": {
+    "includes": [
+      "**",
+      "!**/node_modules",
+      "!**/dist",
+      "!**/build",
+      "!**/.next",
+      "!**/.turbo",
+      "!**/.tauri",
+      "!**/target",
+      "!**/coverage",
+      "!**/out",
+      "!vendor",
+      "!patches",
+      "!translated_readmes",
+      "!**/*.generated.ts",
+      "!**/*.gen.ts",
+      "!packages/openwork-server-sdk/src",
+      "!apps/server-v2/openapi.json",
+      "!pnpm-lock.yaml",
+      "!package-lock.json"
+    ]
+  },
+  "formatter": {
+    "enabled": false
+  },
+  "css": {
+    "linter": {
+      "enabled": false
+    },
+    "parser": {
+      "cssModules": true
+    }
+  },
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "recommended": false,
+      "suspicious": {
+        "noDebugger": "error"
+      }
+    }
+  },
+  "assist": {
+    "enabled": false
+  }
+}
diff --git a/ee/apps/den-api/package.json b/ee/apps/den-api/package.json
index 55beb8332b..25529512ad 100644
--- a/ee/apps/den-api/package.json
+++ b/ee/apps/den-api/package.json
@@ -8,7 +8,8 @@
     "build": "node ./scripts/build.mjs",
     "build:den-db": "pnpm --filter @openwork-ee/den-db build",
     "seed:demo-org": "pnpm run build:den-db && sh -lc 'DEN_WEB_PORT=${DEN_WEB_PORT:-3005}; OPENWORK_DEV_MODE=${OPENWORK_DEV_MODE:-1} DATABASE_URL=${DATABASE_URL:-mysql://root:password@127.0.0.1:3306/openwork_den} DEN_DB_ENCRYPTION_KEY=${DEN_DB_ENCRYPTION_KEY:-local-dev-db-encryption-key-please-change-1234567890} BETTER_AUTH_SECRET=${BETTER_AUTH_SECRET:-local-dev-secret-not-for-production-use!!} BETTER_AUTH_URL=${BETTER_AUTH_URL:-http://localhost:$DEN_WEB_PORT} tsx scripts/seed-demo-org.ts'",
-    "start": "node dist/server.js"
+    "start": "node dist/server.js",
+    "lint:biome": "biome lint ."
   },
   "dependencies": {
     "@better-auth/api-key": "^1.5.6",
diff --git a/ee/apps/den-web/package.json b/ee/apps/den-web/package.json
index 3a06afb66b..9db0b532c5 100644
--- a/ee/apps/den-web/package.json
+++ b/ee/apps/den-web/package.json
@@ -8,7 +8,8 @@
     "prebuild": "pnpm --dir ../../../packages/ui build && pnpm --dir ../../packages/utils build",
     "build": "next build",
     "start": "next start --hostname 0.0.0.0 --port 3005",
-    "lint": "next lint"
+    "lint": "next lint",
+    "lint:biome": "biome lint ."
   },
   "dependencies": {
     "@openwork/types": "workspace:*",
diff --git a/ee/apps/den-worker-proxy/package.json b/ee/apps/den-worker-proxy/package.json
index eba45db869..bd5e5ed00e 100644
--- a/ee/apps/den-worker-proxy/package.json
+++ b/ee/apps/den-worker-proxy/package.json
@@ -7,7 +7,8 @@
     "dev:local": "sh -lc 'NODE_OPTIONS=--conditions=development OPENWORK_DEV_MODE=1 PORT=${DEN_WORKER_PROXY_PORT:-8789} tsx watch src/server.ts'",
     "build": "npm run build:den-db && tsc -p tsconfig.json",
     "build:den-db": "pnpm --filter @openwork-ee/den-db build",
-    "start": "node dist/server.js"
+    "start": "node dist/server.js",
+    "lint:biome": "biome lint ."
   },
   "dependencies": {
     "@openwork-ee/den-db": "workspace:*",
diff --git a/ee/apps/landing/package.json b/ee/apps/landing/package.json
index 64adbe47f4..44e6e686e0 100644
--- a/ee/apps/landing/package.json
+++ b/ee/apps/landing/package.json
@@ -7,7 +7,8 @@
     "prebuild": "pnpm --dir ../../../packages/ui build",
     "build": "next build",
     "start": "next start --hostname 0.0.0.0",
-    "lint": "next lint"
+    "lint": "next lint",
+    "lint:biome": "biome lint ."
   },
   "dependencies": {
     "@openwork/ui": "workspace:*",
diff --git a/ee/packages/den-db/package.json b/ee/packages/den-db/package.json
index af6bbc662e..80c0e54a65 100644
--- a/ee/packages/den-db/package.json
+++ b/ee/packages/den-db/package.json
@@ -62,7 +62,8 @@
     "build:utils": "pnpm --dir ../utils run build",
     "db:generate": "pnpm run build && node --import tsx ./node_modules/drizzle-kit/bin.cjs generate --config drizzle.config.ts",
     "db:migrate": "pnpm run build && node --import tsx ./node_modules/drizzle-kit/bin.cjs migrate --config drizzle.config.ts",
-    "db:push": "pnpm run build && node --import tsx ./node_modules/drizzle-kit/bin.cjs push --config drizzle.config.ts"
+    "db:push": "pnpm run build && node --import tsx ./node_modules/drizzle-kit/bin.cjs push --config drizzle.config.ts",
+    "lint:biome": "biome lint ."
   },
   "dependencies": {
     "@openwork/types": "workspace:*",
diff --git a/ee/packages/utils/package.json b/ee/packages/utils/package.json
index 9ff94c1563..f762f46c6f 100644
--- a/ee/packages/utils/package.json
+++ b/ee/packages/utils/package.json
@@ -18,7 +18,8 @@
     }
   },
   "scripts": {
-    "build": "tsup"
+    "build": "tsup",
+    "lint:biome": "biome lint ."
   },
   "dependencies": {
     "luxon": "^3.6.1",
diff --git a/package.json b/package.json
index 120c1af987..d1fc10dfe1 100644
--- a/package.json
+++ b/package.json
@@ -52,9 +52,12 @@
     "release:prepare:dry": "node scripts/release/prepare.mjs --dry-run",
     "release:ship": "node scripts/release/ship.mjs",
     "release:ship:watch": "node scripts/release/ship.mjs --watch",
-    "tauri": "pnpm --filter @openwork/desktop exec tauri"
+    "tauri": "pnpm --filter @openwork/desktop exec tauri",
+    "lint": "turbo run lint:biome",
+    "lint:fix": "turbo run lint:biome -- --write"
   },
   "devDependencies": {
+    "@biomejs/biome": "^2.4.14",
     "turbo": "^2.5.5"
   },
   "pnpm": {
diff --git a/packages/openwork-server-sdk/package.json b/packages/openwork-server-sdk/package.json
index 984e17ce69..746e8557c0 100644
--- a/packages/openwork-server-sdk/package.json
+++ b/packages/openwork-server-sdk/package.json
@@ -18,7 +18,8 @@
     "generate": "pnpm exec openapi-ts -f openapi-ts.config.ts",
     "watch": "node ./scripts/watch.mjs",
     "pretypecheck": "pnpm --dir ../.. run sdk:generate",
-    "typecheck": "tsc --noEmit"
+    "typecheck": "tsc --noEmit",
+    "lint:biome": "biome lint ."
   },
   "dependencies": {
     "@hey-api/client-fetch": "0.13.1"
diff --git a/packages/types/package.json b/packages/types/package.json
index fc0d73ef88..05be4fe0dc 100644
--- a/packages/types/package.json
+++ b/packages/types/package.json
@@ -19,7 +19,8 @@
     "dist"
   ],
   "scripts": {
-    "build": "tsup"
+    "build": "tsup",
+    "lint:biome": "biome lint ."
   },
   "dependencies": {
     "zod": "^4.3.6"
diff --git a/packages/ui/package.json b/packages/ui/package.json
index 914ed66961..03707d0d53 100644
--- a/packages/ui/package.json
+++ b/packages/ui/package.json
@@ -20,7 +20,8 @@
     "README.md"
   ],
   "scripts": {
-    "build": "tsup --config tsup.config.react.ts && tsup --config tsup.config.solid.ts"
+    "build": "tsup --config tsup.config.react.ts && tsup --config tsup.config.solid.ts",
+    "lint:biome": "biome lint ."
   },
   "dependencies": {
     "@paper-design/shaders": "0.0.72",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index f1fea3aa95..3776465d36 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -13,6 +13,9 @@ importers:
 
   .:
     devDependencies:
+      '@biomejs/biome':
+        specifier: ^2.4.14
+        version: 2.4.14
       turbo:
         specifier: ^2.5.5
         version: 2.8.20
@@ -1302,6 +1305,59 @@ packages:
   '@better-fetch/fetch@1.1.21':
     resolution: {integrity: sha512-/ImESw0sskqlVR94jB+5+Pxjf+xBwDZF/N5+y2/q4EqD7IARUTSpPfIo8uf39SYpCxyOCtbyYpUrZ3F/k0zT4A==}
 
+  '@biomejs/biome@2.4.14':
+    resolution: {integrity: sha512-TmAvxOEgrpLypzVGJ8FulIZnlyA9TxrO1hyqYrCz9r+bwma9xXxuLA5IuYnj55XQneFx460KjRbx6SWGLkg3bQ==}
+    engines: {node: '>=14.21.3'}
+    hasBin: true
+
+  '@biomejs/cli-darwin-arm64@2.4.14':
+    resolution: {integrity: sha512-XvgoE9XOawUOQPdmvs4J7wPhi/DLwSCGks3AlPJDmh34O0awRTqCED1HRcRDdpf1Zrp4us4MGOOdIxNpbqNF5Q==}
+    engines: {node: '>=14.21.3'}
+    cpu: [arm64]
+    os: [darwin]
+
+  '@biomejs/cli-darwin-x64@2.4.14':
+    resolution: {integrity: sha512-jE7hKBCFhOx3uUh+ZkWBfOHxAcILPfhFplNkuID/eZeSTLHzfZzoZxW8fbqY9xXRnPi7jGNAf1iPVR+0yWsM/Q==}
+    engines: {node: '>=14.21.3'}
+    cpu: [x64]
+    os: [darwin]
+
+  '@biomejs/cli-linux-arm64-musl@2.4.14':
+    resolution: {integrity: sha512-/z+6gqAqqUQTHazwStxSXKHg9b8UvqBmDFRp+c4wYbq2KXhELQDon9EoC9RpmQ8JWkqQx/lIUy/cs+MhzDZp6A==}
+    engines: {node: '>=14.21.3'}
+    cpu: [arm64]
+    os: [linux]
+
+  '@biomejs/cli-linux-arm64@2.4.14':
+    resolution: {integrity: sha512-2TELhZnW5RSLL063l9rc5xLpA0ZIw0Ccwy/0q384rvNAgFw3yI76bd59547yxowdQr5MNPET/xDLrLuvgSeeWQ==}
+    engines: {node: '>=14.21.3'}
+    cpu: [arm64]
+    os: [linux]
+
+  '@biomejs/cli-linux-x64-musl@2.4.14':
+    resolution: {integrity: sha512-R6BWgJdQOwW9ulJatuTVrQkjnODjqHZkKNOqb1sz++3Noe5LYd0i3PchnOBUCYAPHoPWHhjJqbdZlHEu0hpjdA==}
+    engines: {node: '>=14.21.3'}
+    cpu: [x64]
+    os: [linux]
+
+  '@biomejs/cli-linux-x64@2.4.14':
+    resolution: {integrity: sha512-zHrlQZDBDUz4OLAraYpWKcnLS6HOewBFWYOzY91d1ZjdqZwibOyb6BEu6WuWLugyo0P3riCmsbV9UqV1cSXwQg==}
+    engines: {node: '>=14.21.3'}
+    cpu: [x64]
+    os: [linux]
+
+  '@biomejs/cli-win32-arm64@2.4.14':
+    resolution: {integrity: sha512-M3EH5hqOI/F/FUA2u4xcLoUgmxd218mvuj/6JL7Hv2toQvr2/AdOvKSpGkoRuWFCtQPVa+ZqkEV3Q5xBA9+XSA==}
+    engines: {node: '>=14.21.3'}
+    cpu: [arm64]
+    os: [win32]
+
+  '@biomejs/cli-win32-x64@2.4.14':
+    resolution: {integrity: sha512-WL0EG5qE+EAKomGXbf2g6VnSKJhTL3tXC0QRzWRwA5VpjxNYa6H4P7ZWfymbGE4IhZZQi1KXQ2R0YjwInmz2fA==}
+    engines: {node: '>=14.21.3'}
+    cpu: [x64]
+    os: [win32]
+
   '@braintree/sanitize-url@7.1.2':
     resolution: {integrity: sha512-jigsZK+sMF/cuiB7sERuo9V7N9jx+dhmHHnQyDSVdpZwVutaBu7WvNYqMDLSgFgfB30n452TP3vjDAvFC973mA==}
 
@@ -9209,6 +9265,41 @@ snapshots:
 
   '@better-fetch/fetch@1.1.21': {}
 
+  '@biomejs/biome@2.4.14':
+    optionalDependencies:
+      '@biomejs/cli-darwin-arm64': 2.4.14
+      '@biomejs/cli-darwin-x64': 2.4.14
+      '@biomejs/cli-linux-arm64': 2.4.14
+      '@biomejs/cli-linux-arm64-musl': 2.4.14
+      '@biomejs/cli-linux-x64': 2.4.14
+      '@biomejs/cli-linux-x64-musl': 2.4.14
+      '@biomejs/cli-win32-arm64': 2.4.14
+      '@biomejs/cli-win32-x64': 2.4.14
+
+  '@biomejs/cli-darwin-arm64@2.4.14':
+    optional: true
+
+  '@biomejs/cli-darwin-x64@2.4.14':
+    optional: true
+
+  '@biomejs/cli-linux-arm64-musl@2.4.14':
+    optional: true
+
+  '@biomejs/cli-linux-arm64@2.4.14':
+    optional: true
+
+  '@biomejs/cli-linux-x64-musl@2.4.14':
+    optional: true
+
+  '@biomejs/cli-linux-x64@2.4.14':
+    optional: true
+
+  '@biomejs/cli-win32-arm64@2.4.14':
+    optional: true
+
+  '@biomejs/cli-win32-x64@2.4.14':
+    optional: true
+
   '@braintree/sanitize-url@7.1.2': {}
 
   '@chevrotain/cst-dts-gen@11.1.2':
diff --git a/turbo.json b/turbo.json
index 8f8a47411d..17dc7e8cc9 100644
--- a/turbo.json
+++ b/turbo.json
@@ -29,6 +29,14 @@
     "build": {
       "dependsOn": ["^build"],
       "outputs": ["dist/**", ".next/**"]
+    },
+    "lint:biome": {
+      "inputs": [
+        "$TURBO_DEFAULT$",
+        "../../biome.json",
+        "../../../biome.json"
+      ],
+      "outputs": []
     }
   }
 }