feat: snapshot and resume example

EXAMPLES.md

@@ -8,6 +8,7 @@ Runnable examples live in [`examples/`](./examples).
 ## Table of Contents
 
 - [Devbox From Blueprint (Run Command, Shutdown)](#devbox-from-blueprint-lifecycle)
+- [Devbox Snapshot and Resume](#devbox-snapshot-resume)
 - [MCP Hub + Claude Code + GitHub](#mcp-github-tools)
 
 <a id="devbox-from-blueprint-lifecycle"></a>
@@ -39,6 +40,37 @@ yarn test:examples
 
 **Source:** [`examples/devbox-from-blueprint-lifecycle.ts`](./examples/devbox-from-blueprint-lifecycle.ts)
 
+<a id="devbox-snapshot-resume"></a>
+## Devbox Snapshot and Resume
+
+**Use case:** Create a devbox, snapshot its disk, resume from the snapshot, and demonstrate that changes in the original devbox do not affect the clone.
+
+**Tags:** `devbox`, `snapshot`, `resume`, `cleanup`
+
+### Workflow
+- Create a devbox
+- Write a file to the devbox
+- Create a disk snapshot
+- Create a new devbox from the snapshot
+- Modify the file on the original devbox
+- Verify the clone has the original content
+- Shutdown both devboxes and delete the snapshot
+
+### Prerequisites
+- `RUNLOOP_API_KEY`
+
+### Run
+```sh
+yarn tsn -T examples/devbox-snapshot-resume.ts
+```
+
+### Test
+```sh
+yarn test:examples
+```
+
+**Source:** [`examples/devbox-snapshot-resume.ts`](./examples/devbox-snapshot-resume.ts)
+
 <a id="mcp-github-tools"></a>
 ## MCP Hub + Claude Code + GitHub
 

examples/devbox-snapshot-resume.ts

@@ -0,0 +1,127 @@
+#!/usr/bin/env -S npm run tsn -T
+
+/**
+---
+title: Devbox Snapshot and Resume
+slug: devbox-snapshot-resume
+use_case: Create a devbox, snapshot its disk, resume from the snapshot, and demonstrate that changes in the original devbox do not affect the clone.
+workflow:
+  - Create a devbox
+  - Write a file to the devbox
+  - Create a disk snapshot
+  - Create a new devbox from the snapshot
+  - Modify the file on the original devbox
+  - Verify the clone has the original content
+  - Shutdown both devboxes and delete the snapshot
+tags:
+  - devbox
+  - snapshot
+  - resume
+  - cleanup
+prerequisites:
+  - RUNLOOP_API_KEY
+run: yarn tsn -T examples/devbox-snapshot-resume.ts
+test: yarn test:examples
+---
+*/
+
+import { RunloopSDK } from '@runloop/api-client';
+import { wrapRecipe, runAsCli } from './_harness';
+import type { RecipeContext, RecipeOutput } from './types';
+
+const FILE_PATH = '/home/user/welcome.txt';
+const ORIGINAL_CONTENT = 'hello world!';
+const MODIFIED_CONTENT = 'original devbox has changed the welcome message';
+
+export async function recipe(ctx: RecipeContext): Promise<RecipeOutput> {
+  const { cleanup } = ctx;
+
+  const sdk = new RunloopSDK({
+    bearerToken: process.env['RUNLOOP_API_KEY'],
+  });
+
+  // Create a devbox
+  const dbxOriginal = await sdk.devbox.create({
+    name: 'dbx_original',
+    launch_parameters: {
+      resource_size_request: 'X_SMALL',
+      keep_alive_time_seconds: 60 * 5,
+    },
+  });
+  cleanup.add(`devbox:${dbxOriginal.id}`, () => sdk.devbox.fromId(dbxOriginal.id).shutdown());
+
+  // Write a file to the original devbox
+  await dbxOriginal.file.write({ file_path: FILE_PATH, contents: ORIGINAL_CONTENT });
+
+  // Read and display the file contents
+  const catOriginalBefore = await dbxOriginal.cmd.exec(`cat ${FILE_PATH}`);
+  const originalContentBefore = await catOriginalBefore.stdout();
+
+  // Create a disk snapshot of the original devbox
+  const snapshot = await dbxOriginal.snapshotDisk({
+    name: 'my-snapshot',
+  });
+  cleanup.add(`snapshot:${snapshot.id}`, () => snapshot.delete());
+
+  // Create a new devbox from the snapshot
+  const dbxClone = await sdk.devbox.createFromSnapshot(snapshot.id, {
+    name: 'dbx_clone',
+    launch_parameters: {
+      resource_size_request: 'X_SMALL',
+      keep_alive_time_seconds: 60 * 5,
+    },
+  });
+  cleanup.add(`devbox:${dbxClone.id}`, () => sdk.devbox.fromId(dbxClone.id).shutdown());
+
+  // Modify the file on the original devbox
+  await dbxOriginal.file.write({ file_path: FILE_PATH, contents: MODIFIED_CONTENT });
+
+  // Read the file contents from both devboxes
+  const catClone = await dbxClone.cmd.exec(`cat ${FILE_PATH}`);
+  const cloneContent = await catClone.stdout();
+
+  const catOriginalAfter = await dbxOriginal.cmd.exec(`cat ${FILE_PATH}`);
+  const originalContentAfter = await catOriginalAfter.stdout();
+
+  return {
+    resourcesCreated: [`devbox:${dbxOriginal.id}`, `snapshot:${snapshot.id}`, `devbox:${dbxClone.id}`],
+    checks: [
+      {
+        name: 'original devbox file created successfully',
+        passed: catOriginalBefore.exitCode === 0 && originalContentBefore.trim() === ORIGINAL_CONTENT,
+        details: `content="${originalContentBefore.trim()}"`,
+      },
+      {
+        name: 'snapshot created successfully',
+        passed: Boolean(snapshot.id),
+        details: `snapshotId=${snapshot.id}`,
+      },
+      {
+        name: 'clone devbox created from snapshot',
+        passed: Boolean(dbxClone.id),
+        details: `cloneId=${dbxClone.id}`,
+      },
+      {
+        name: 'clone has original file content (before modification)',
+        passed: catClone.exitCode === 0 && cloneContent.trim() === ORIGINAL_CONTENT,
+        details: `cloneContent="${cloneContent.trim()}"`,
+      },
+      {
+        name: 'original devbox has modified content',
+        passed: catOriginalAfter.exitCode === 0 && originalContentAfter.trim() === MODIFIED_CONTENT,
+        details: `originalContent="${originalContentAfter.trim()}"`,
+      },
+      {
+        name: 'clone and original have divergent state',
+        passed: cloneContent.trim() !== originalContentAfter.trim(),
+        details: `clone="${cloneContent.trim()}" vs original="${originalContentAfter.trim()}"`,
+      },
+    ],
+  };
+}
+
+export const runDevboxSnapshotResumeExample = wrapRecipe({ recipe });
+
+if (require.main === module) {
+  void runAsCli(runDevboxSnapshotResumeExample);
+}

examples/registry.ts

@@ -4,6 +4,7 @@
  */
 import type { ExampleResult } from './types';
 import { runDevboxFromBlueprintLifecycleExample } from './devbox-from-blueprint-lifecycle';
+import { runDevboxSnapshotResumeExample } from './devbox-snapshot-resume';
 import { runMcpGithubToolsExample } from './mcp-github-tools';
 
 export interface ExampleRegistryEntry {
@@ -22,6 +23,13 @@ export const exampleRegistry: ExampleRegistryEntry[] = [
     requiredEnv: ['RUNLOOP_API_KEY'],
     run: runDevboxFromBlueprintLifecycleExample,
   },
+  {
+    slug: 'devbox-snapshot-resume',
+    title: 'Devbox Snapshot and Resume',
+    fileName: 'devbox-snapshot-resume.ts',
+    requiredEnv: ['RUNLOOP_API_KEY'],
+    run: runDevboxSnapshotResumeExample,
+  },
   {
     slug: 'mcp-github-tools',
     title: 'MCP Hub + Claude Code + GitHub',

llms.txt

@@ -10,6 +10,7 @@
 ## Core Patterns
 
 - [Devbox lifecycle example](examples/devbox-from-blueprint-lifecycle.ts): Create blueprint, launch devbox, run commands, cleanup
+- [Devbox snapshot and resume example](examples/devbox-snapshot-resume.ts): Snapshot disk, resume from snapshot, verify state isolation
 - [MCP GitHub example](examples/mcp-github-tools.ts): MCP Hub integration with Claude Code
 
 ## API Reference