diff --git a/rules/4.1.0/config.md b/rules/4.1.0/config.md
new file mode 100644
index 0000000000..6ad90223e3
--- /dev/null
+++ b/rules/4.1.0/config.md
@@ -0,0 +1,346 @@
+# Trigger.dev Configuration (v4)
+
+**Complete guide to configuring `trigger.config.ts` with build extensions**
+
+## Basic Configuration
+
+```ts
+import { defineConfig } from "@trigger.dev/sdk";
+
+export default defineConfig({
+  project: "<project-ref>", // Required: Your project reference
+  dirs: ["./trigger"], // Task directories
+  runtime: "node", // "node", "node-22", or "bun"
+  logLevel: "info", // "debug", "info", "warn", "error"
+
+  // Default retry settings
+  retries: {
+    enabledInDev: false,
+    default: {
+      maxAttempts: 3,
+      minTimeoutInMs: 1000,
+      maxTimeoutInMs: 10000,
+      factor: 2,
+      randomize: true,
+    },
+  },
+
+  // Build configuration
+  build: {
+    autoDetectExternal: true,
+    keepNames: true,
+    minify: false,
+    extensions: [], // Build extensions go here
+  },
+
+  // Global lifecycle hooks
+  onStartAttempt: async ({ payload, ctx }) => {
+    console.log("Global task start");
+  },
+  onSuccess: async ({ payload, output, ctx }) => {
+    console.log("Global task success");
+  },
+  onFailure: async ({ payload, error, ctx }) => {
+    console.log("Global task failure");
+  },
+});
+```
+
+## Build Extensions
+
+### Database & ORM
+
+#### Prisma
+
+```ts
+import { prismaExtension } from "@trigger.dev/build/extensions/prisma";
+
+extensions: [
+  prismaExtension({
+    schema: "prisma/schema.prisma",
+    version: "5.19.0", // Optional: specify version
+    migrate: true, // Run migrations during build
+    directUrlEnvVarName: "DIRECT_DATABASE_URL",
+    typedSql: true, // Enable TypedSQL support
+  }),
+];
+```
+
+#### TypeScript Decorators (for TypeORM)
+
+```ts
+import { emitDecoratorMetadata } from "@trigger.dev/build/extensions/typescript";
+
+extensions: [
+  emitDecoratorMetadata(), // Enables decorator metadata
+];
+```
+
+### Scripting Languages
+
+#### Python
+
+```ts
+import { pythonExtension } from "@trigger.dev/build/extensions/python";
+
+extensions: [
+  pythonExtension({
+    scripts: ["./python/**/*.py"], // Copy Python files
+    requirementsFile: "./requirements.txt", // Install packages
+    devPythonBinaryPath: ".venv/bin/python", // Dev mode binary
+  }),
+];
+
+// Usage in tasks
+const result = await python.runInline(`print("Hello, world!")`);
+const output = await python.runScript("./python/script.py", ["arg1"]);
+```
+
+### Browser Automation
+
+#### Playwright
+
+```ts
+import { playwright } from "@trigger.dev/build/extensions/playwright";
+
+extensions: [
+  playwright({
+    browsers: ["chromium", "firefox", "webkit"], // Default: ["chromium"]
+    headless: true, // Default: true
+  }),
+];
+```
+
+#### Puppeteer
+
+```ts
+import { puppeteer } from "@trigger.dev/build/extensions/puppeteer";
+
+extensions: [puppeteer()];
+
+// Environment variable needed:
+// PUPPETEER_EXECUTABLE_PATH: "/usr/bin/google-chrome-stable"
+```
+
+#### Lightpanda
+
+```ts
+import { lightpanda } from "@trigger.dev/build/extensions/lightpanda";
+
+extensions: [
+  lightpanda({
+    version: "latest", // or "nightly"
+    disableTelemetry: false,
+  }),
+];
+```
+
+### Media Processing
+
+#### FFmpeg
+
+```ts
+import { ffmpeg } from "@trigger.dev/build/extensions/core";
+
+extensions: [
+  ffmpeg({ version: "7" }), // Static build, or omit for Debian version
+];
+
+// Automatically sets FFMPEG_PATH and FFPROBE_PATH
+// Add fluent-ffmpeg to external packages if using
+```
+
+#### Audio Waveform
+
+```ts
+import { audioWaveform } from "@trigger.dev/build/extensions/audioWaveform";
+
+extensions: [
+  audioWaveform(), // Installs Audio Waveform 1.1.0
+];
+```
+
+### System & Package Management
+
+#### System Packages (apt-get)
+
+```ts
+import { aptGet } from "@trigger.dev/build/extensions/core";
+
+extensions: [
+  aptGet({
+    packages: ["ffmpeg", "imagemagick", "curl=7.68.0-1"], // Can specify versions
+  }),
+];
+```
+
+#### Additional NPM Packages
+
+Only use this for installing CLI tools, NOT packages you import in your code.
+
+```ts
+import { additionalPackages } from "@trigger.dev/build/extensions/core";
+
+extensions: [
+  additionalPackages({
+    packages: ["wrangler"], // CLI tools and specific versions
+  }),
+];
+```
+
+#### Additional Files
+
+```ts
+import { additionalFiles } from "@trigger.dev/build/extensions/core";
+
+extensions: [
+  additionalFiles({
+    files: ["wrangler.toml", "./assets/**", "./fonts/**"], // Glob patterns supported
+  }),
+];
+```
+
+### Environment & Build Tools
+
+#### Environment Variable Sync
+
+```ts
+import { syncEnvVars } from "@trigger.dev/build/extensions/core";
+
+extensions: [
+  syncEnvVars(async (ctx) => {
+    // ctx contains: environment, projectRef, env
+    return [
+      { name: "SECRET_KEY", value: await getSecret(ctx.environment) },
+      { name: "API_URL", value: ctx.environment === "prod" ? "api.prod.com" : "api.dev.com" },
+    ];
+  }),
+];
+```
+
+#### ESBuild Plugins
+
+```ts
+import { esbuildPlugin } from "@trigger.dev/build/extensions";
+import { sentryEsbuildPlugin } from "@sentry/esbuild-plugin";
+
+extensions: [
+  esbuildPlugin(
+    sentryEsbuildPlugin({
+      org: process.env.SENTRY_ORG,
+      project: process.env.SENTRY_PROJECT,
+      authToken: process.env.SENTRY_AUTH_TOKEN,
+    }),
+    { placement: "last", target: "deploy" } // Optional config
+  ),
+];
+```
+
+## Custom Build Extensions
+
+```ts
+import { defineConfig } from "@trigger.dev/sdk";
+
+const customExtension = {
+  name: "my-custom-extension",
+
+  externalsForTarget: (target) => {
+    return ["some-native-module"]; // Add external dependencies
+  },
+
+  onBuildStart: async (context) => {
+    console.log(`Build starting for ${context.target}`);
+    // Register esbuild plugins, modify build context
+  },
+
+  onBuildComplete: async (context, manifest) => {
+    console.log("Build complete, adding layers");
+    // Add build layers, modify deployment
+    context.addLayer({
+      id: "my-layer",
+      files: [{ source: "./custom-file", destination: "/app/custom" }],
+      commands: ["chmod +x /app/custom"],
+    });
+  },
+};
+
+export default defineConfig({
+  project: "my-project",
+  build: {
+    extensions: [customExtension],
+  },
+});
+```
+
+## Advanced Configuration
+
+### Telemetry
+
+```ts
+import { PrismaInstrumentation } from "@prisma/instrumentation";
+import { OpenAIInstrumentation } from "@langfuse/openai";
+
+export default defineConfig({
+  // ... other config
+  telemetry: {
+    instrumentations: [new PrismaInstrumentation(), new OpenAIInstrumentation()],
+    exporters: [customExporter], // Optional custom exporters
+  },
+});
+```
+
+### Machine & Performance
+
+```ts
+export default defineConfig({
+  // ... other config
+  defaultMachine: "large-1x", // Default machine for all tasks
+  maxDuration: 300, // Default max duration (seconds)
+  enableConsoleLogging: true, // Console logging in development
+});
+```
+
+## Common Extension Combinations
+
+### Full-Stack Web App
+
+```ts
+extensions: [
+  prismaExtension({ schema: "prisma/schema.prisma", migrate: true }),
+  additionalFiles({ files: ["./public/**", "./assets/**"] }),
+  syncEnvVars(async (ctx) => [...envVars]),
+];
+```
+
+### AI/ML Processing
+
+```ts
+extensions: [
+  pythonExtension({
+    scripts: ["./ai/**/*.py"],
+    requirementsFile: "./requirements.txt",
+  }),
+  ffmpeg({ version: "7" }),
+  additionalPackages({ packages: ["wrangler"] }),
+];
+```
+
+### Web Scraping
+
+```ts
+extensions: [
+  playwright({ browsers: ["chromium"] }),
+  puppeteer(),
+  additionalFiles({ files: ["./selectors.json", "./proxies.txt"] }),
+];
+```
+
+## Best Practices
+
+- **Use specific versions**: Pin extension versions for reproducible builds
+- **External packages**: Add modules with native addons to the `build.external` array
+- **Environment sync**: Use `syncEnvVars` for dynamic secrets
+- **File paths**: Use glob patterns for flexible file inclusion
+- **Debug builds**: Use `--log-level debug --dry-run` for troubleshooting
+
+Extensions only affect deployment, not local development. Use `external` array for packages that shouldn't be bundled.
diff --git a/rules/4.1.0/realtime.md b/rules/4.1.0/realtime.md
new file mode 100644
index 0000000000..7368e5a708
--- /dev/null
+++ b/rules/4.1.0/realtime.md
@@ -0,0 +1,266 @@
+# Trigger.dev Realtime (v4)
+
+**Real-time monitoring and updates for runs**
+
+## Core Concepts
+
+Realtime allows you to:
+
+- Subscribe to run status changes, metadata updates, and streams
+- Build real-time dashboards and UI updates
+- Monitor task progress from frontend and backend
+
+## Authentication
+
+### Public Access Tokens
+
+```ts
+import { auth } from "@trigger.dev/sdk";
+
+// Read-only token for specific runs
+const publicToken = await auth.createPublicToken({
+  scopes: {
+    read: {
+      runs: ["run_123", "run_456"],
+      tasks: ["my-task-1", "my-task-2"],
+    },
+  },
+  expirationTime: "1h", // Default: 15 minutes
+});
+```
+
+### Trigger Tokens (Frontend only)
+
+```ts
+// Single-use token for triggering tasks
+const triggerToken = await auth.createTriggerPublicToken("my-task", {
+  expirationTime: "30m",
+});
+```
+
+## Backend Usage
+
+### Subscribe to Runs
+
+```ts
+import { runs, tasks } from "@trigger.dev/sdk";
+
+// Trigger and subscribe
+const handle = await tasks.trigger("my-task", { data: "value" });
+
+// Subscribe to specific run
+for await (const run of runs.subscribeToRun<typeof myTask>(handle.id)) {
+  console.log(`Status: ${run.status}, Progress: ${run.metadata?.progress}`);
+  if (run.status === "COMPLETED") break;
+}
+
+// Subscribe to runs with tag
+for await (const run of runs.subscribeToRunsWithTag("user-123")) {
+  console.log(`Tagged run ${run.id}: ${run.status}`);
+}
+
+// Subscribe to batch
+for await (const run of runs.subscribeToBatch(batchId)) {
+  console.log(`Batch run ${run.id}: ${run.status}`);
+}
+```
+
+### Realtime Streams v2 (Recommended)
+
+```ts
+import { streams, InferStreamType } from "@trigger.dev/sdk";
+
+// 1. Define streams (shared location)
+export const aiStream = streams.define<string>({
+  id: "ai-output",
+});
+
+export type AIStreamPart = InferStreamType<typeof aiStream>;
+
+// 2. Pipe from task
+export const streamingTask = task({
+  id: "streaming-task",
+  run: async (payload) => {
+    const completion = await openai.chat.completions.create({
+      model: "gpt-4",
+      messages: [{ role: "user", content: payload.prompt }],
+      stream: true,
+    });
+
+    const { waitUntilComplete } = aiStream.pipe(completion);
+    await waitUntilComplete();
+  },
+});
+
+// 3. Read from backend
+const stream = await aiStream.read(runId, {
+  timeoutInSeconds: 300,
+  startIndex: 0, // Resume from specific chunk
+});
+
+for await (const chunk of stream) {
+  console.log("Chunk:", chunk); // Fully typed
+}
+```
+
+Enable v2 by upgrading to 4.1.0 or later.
+
+## React Frontend Usage
+
+### Installation
+
+```bash
+npm add @trigger.dev/react-hooks
+```
+
+### Triggering Tasks
+
+```tsx
+"use client";
+import { useTaskTrigger, useRealtimeTaskTrigger } from "@trigger.dev/react-hooks";
+import type { myTask } from "../trigger/tasks";
+
+function TriggerComponent({ accessToken }: { accessToken: string }) {
+  // Basic trigger
+  const { submit, handle, isLoading } = useTaskTrigger<typeof myTask>("my-task", {
+    accessToken,
+  });
+
+  // Trigger with realtime updates
+  const {
+    submit: realtimeSubmit,
+    run,
+    isLoading: isRealtimeLoading,
+  } = useRealtimeTaskTrigger<typeof myTask>("my-task", { accessToken });
+
+  return (
+    <div>
+      <button onClick={() => submit({ data: "value" })} disabled={isLoading}>
+        Trigger Task
+      </button>
+
+      <button onClick={() => realtimeSubmit({ data: "realtime" })} disabled={isRealtimeLoading}>
+        Trigger with Realtime
+      </button>
+
+      {run && <div>Status: {run.status}</div>}
+    </div>
+  );
+}
+```
+
+### Subscribing to Runs
+
+```tsx
+"use client";
+import { useRealtimeRun, useRealtimeRunsWithTag } from "@trigger.dev/react-hooks";
+import type { myTask } from "../trigger/tasks";
+
+function SubscribeComponent({ runId, accessToken }: { runId: string; accessToken: string }) {
+  // Subscribe to specific run
+  const { run, error } = useRealtimeRun<typeof myTask>(runId, {
+    accessToken,
+    onComplete: (run) => {
+      console.log("Task completed:", run.output);
+    },
+  });
+
+  // Subscribe to tagged runs
+  const { runs } = useRealtimeRunsWithTag("user-123", { accessToken });
+
+  if (error) return <div>Error: {error.message}</div>;
+  if (!run) return <div>Loading...</div>;
+
+  return (
+    <div>
+      <div>Status: {run.status}</div>
+      <div>Progress: {run.metadata?.progress || 0}%</div>
+      {run.output && <div>Result: {JSON.stringify(run.output)}</div>}
+
+      <h3>Tagged Runs:</h3>
+      {runs.map((r) => (
+        <div key={r.id}>
+          {r.id}: {r.status}
+        </div>
+      ))}
+    </div>
+  );
+}
+```
+
+### Realtime Streams with React
+
+```tsx
+"use client";
+import { useRealtimeStream } from "@trigger.dev/react-hooks";
+import { aiStream } from "../trigger/streams";
+
+function StreamComponent({ runId, accessToken }: { runId: string; accessToken: string }) {
+  // Pass defined stream directly for type safety
+  const { parts, error } = useRealtimeStream(aiStream, runId, {
+    accessToken,
+    timeoutInSeconds: 300,
+    throttleInMs: 50, // Control re-render frequency
+  });
+
+  if (error) return <div>Error: {error.message}</div>;
+  if (!parts) return <div>Loading...</div>;
+
+  const text = parts.join(""); // parts is typed as AIStreamPart[]
+
+  return <div>Streamed Text: {text}</div>;
+}
+```
+
+### Wait Tokens
+
+```tsx
+"use client";
+import { useWaitToken } from "@trigger.dev/react-hooks";
+
+function WaitTokenComponent({ tokenId, accessToken }: { tokenId: string; accessToken: string }) {
+  const { complete } = useWaitToken(tokenId, { accessToken });
+
+  return <button onClick={() => complete({ approved: true })}>Approve Task</button>;
+}
+```
+
+### SWR Hooks (Fetch Once)
+
+```tsx
+"use client";
+import { useRun } from "@trigger.dev/react-hooks";
+import type { myTask } from "../trigger/tasks";
+
+function SWRComponent({ runId, accessToken }: { runId: string; accessToken: string }) {
+  const { run, error, isLoading } = useRun<typeof myTask>(runId, {
+    accessToken,
+    refreshInterval: 0, // Disable polling (recommended)
+  });
+
+  if (isLoading) return <div>Loading...</div>;
+  if (error) return <div>Error: {error.message}</div>;
+
+  return <div>Run: {run?.status}</div>;
+}
+```
+
+## Run Object Properties
+
+Key properties available in run subscriptions:
+
+- `id`: Unique run identifier
+- `status`: `QUEUED`, `EXECUTING`, `COMPLETED`, `FAILED`, `CANCELED`, etc.
+- `payload`: Task input data (typed)
+- `output`: Task result (typed, when completed)
+- `metadata`: Real-time updatable data
+- `createdAt`, `updatedAt`: Timestamps
+- `costInCents`: Execution cost
+
+## Best Practices
+
+- **Use Realtime over SWR**: Recommended for most use cases due to rate limits
+- **Scope tokens properly**: Only grant necessary read/trigger permissions
+- **Handle errors**: Always check for errors in hooks and subscriptions
+- **Type safety**: Use task types for proper payload/output typing
+- **Cleanup subscriptions**: Backend subscriptions auto-complete, frontend hooks auto-cleanup
diff --git a/rules/manifest.json b/rules/manifest.json
index a5b205920d..1c481d9277 100644
--- a/rules/manifest.json
+++ b/rules/manifest.json
@@ -1,7 +1,7 @@
 {
   "name": "trigger.dev",
   "description": "Trigger.dev coding agent rules",
-  "currentVersion": "4.0.0",
+  "currentVersion": "4.1.0",
   "versions": {
     "4.0.0": {
       "options": [
@@ -51,6 +51,55 @@
           "installStrategy": "claude-code-subagent"
         }
       ]
+    },
+    "4.1.0": {
+      "options": [
+        {
+          "name": "basic",
+          "title": "Basic tasks",
+          "label": "Only the most important rules for writing basic Trigger.dev tasks",
+          "path": "4.0.0/basic-tasks.md",
+          "tokens": 1200
+        },
+        {
+          "name": "advanced-tasks",
+          "title": "Advanced tasks",
+          "label": "Comprehensive rules to help you write advanced Trigger.dev tasks",
+          "path": "4.0.0/advanced-tasks.md",
+          "tokens": 3000
+        },
+        {
+          "name": "config",
+          "title": "Configuring Trigger.dev",
+          "label": "Configure your Trigger.dev project with a trigger.config.ts file",
+          "path": "4.1.0/config.md",
+          "tokens": 1900,
+          "applyTo": "**/trigger.config.ts"
+        },
+        {
+          "name": "scheduled-tasks",
+          "title": "Scheduled Tasks",
+          "label": "How to write and use scheduled Trigger.dev tasks",
+          "path": "4.0.0/scheduled-tasks.md",
+          "tokens": 780
+        },
+        {
+          "name": "realtime",
+          "title": "Realtime",
+          "label": "How to use realtime in your Trigger.dev tasks and your frontend",
+          "path": "4.1.0/realtime.md",
+          "tokens": 1700
+        },
+        {
+          "name": "claude-code-agent",
+          "title": "Claude Code Agent",
+          "label": "An expert Trigger.dev developer as a Claude Code subagent",
+          "path": "4.0.0/claude-code-agent.md",
+          "tokens": 2700,
+          "client": "claude-code",
+          "installStrategy": "claude-code-subagent"
+        }
+      ]
     }
   }
 }
\ No newline at end of file