feat: use existing codeblock

playground/src/pages/repl.mdx

@@ -1,6 +1,23 @@
 # REPL
 
-```ts sandbox autorun lineNumbers=false tabs=false
+With `autorun`
+
+```ts sandbox autorun
+import { mainnet } from 'viem/chains'
+import { createPublicClient, http } from 'viem'
+
+const client = createPublicClient({
+  chain: mainnet,
+  transport: http(),
+})
+
+const blockNumber = await client.getBlockNumber()
+console.log(blockNumber)
+```
+
+Without `autorun`
+
+```ts sandbox
 import { mainnet } from 'viem/chains'
 import { createPublicClient, http } from 'viem'
 

pnpm-workspace.yaml

@@ -7,7 +7,7 @@ packages:
   - twoslash-rust/npm/*
 
 catalog:
-  '@biomejs/biome': ^2.3.10
+  '@biomejs/biome': ^2.3.11
   '@changesets/cli': ^2.29.8
   '@types/node': ^25.0.3
   '@types/react': ^19.2.7

src/internal/mdx.ts

@@ -31,7 +31,6 @@ import * as yaml from 'yaml'
 import type * as Config from './config.js'
 import * as Icons from './icons.js'
 import { remarkVocsScope } from './remark-vocs-scope.js'
-import { remarkSandbox } from './sandbox.js'
 import * as ShikiTransformers from './shiki-transformers.js'
 import * as Snippets from './snippets.js'
 import type { ExactPartial, UnionOmit } from './types.js'
@@ -195,7 +194,6 @@ export function getCompileOptions(
           remarkGfm,
           remarkMetaFrontmatter,
           remarkMdxFrontmatter,
-          remarkSandbox,
           remarkSteps,
           remarkSubheading,
           remarkVocsScope,
@@ -435,6 +433,7 @@ export function rehypeShiki(
         ...ShikiTransformers.notationFold(),
         ShikiTransformers.removeNotationEscape(),
         ShikiTransformers.shellPrompt(options.shellPrompt),
+        ShikiTransformers.sandbox(),
         ShikiTransformers.tagLine(),
         ShikiTransformers.title(),
         ...(options.transformers ?? []),