Test Studio Script Runner

Use this skill when working with the Scripts tool in dev/test-studio.

Key Files

• Tool plugin: dev/test-studio/src/script-runner/index.tsx
• Runner UI: dev/test-studio/src/script-runner/ScriptRunnerTool.tsx
• Script registry: dev/test-studio/src/script-runner/registry.ts
• Script contract: dev/test-studio/src/script-runner/types.ts
• Script modules: dev/test-studio/src/script-runner/scripts/*/index.ts
• Agent-facing docs: dev/test-studio/src/script-runner/README.md

Read README.md and types.ts before changing the runner or adding scripts.

What The Tool Does

The runner is a Sanity Studio custom tool registered in the home workspace.

• Home route: <studio>/home/scripts
• Script route: <studio>/home/scripts/<script-name>

Scripts are browser-side TypeScript modules discovered at build time with Vite import.meta.glob. They run inside Sanity Studio with the logged-in user's permissions and receive the Studio client.

Adding A Script

Add a folder under dev/test-studio/src/script-runner/scripts/. The folder name should match the script name. Put the registered entrypoint in index.ts; any helper files can live beside it.

scripts/
  my-script-name/
    index.ts
    helpers.ts

Only scripts/*/index.ts files are discovered at build time.

import type {StudioScript} from '../../types'

const script: StudioScript = {
  name: 'my-script-name',
  title: 'My script name',
  description: 'What this script does.',
  apiVersion: '2026-03-01',
  inputs: [
    {
      name: 'documentId',
      title: 'Document ID',
      defaultValue: 'example-id',
      required: true,
    },
  ],
  async run({client, inputs, log}) {
    log.info(`Running for ${inputs.documentId}`)
    await client.fetch('*[_type == "post"][0...1]')
    log.success('Done')
  },
}

export default script

Script names must be unique and use lowercase letters, numbers, and hyphens. Keep the folder name and script name aligned. The script name becomes the URL segment.

Runtime Contract

run() receives:

• client: Sanity Studio client, configured with the script apiVersion or the runner default.
• inputs: string values from the run screen, keyed by input name.
• log: info, success, warning, and error methods that append output in the UI.
• signal: an AbortSignal reserved for script code that supports cancellation.

String Variables

Use inputs for string variables. Each input renders as a text field on the script run screen. Required inputs disable the run button until non-empty.

Available input fields:

• name
• title
• description
• defaultValue
• placeholder
• required

All values passed to scripts are strings. Validate and trim values inside run() when needed.

Browser-Safe Rules

Script runner modules execute in the browser. Do not use:

• fs, path, or other Node built-ins
• process.exit
• direct environment variable access
• SANITYAUTHTOKEN

Do not create a separate Sanity client from env vars. Use the provided client.

If a task needs Node-only APIs or token-based CLI behavior, keep it in dev/test-studio/scripts/ instead of the Studio script runner.

Verification

After changing the runner or adding scripts, run:

pnpm lint
pnpm --filter test-studio build

If pnpm --filter test-studio build fails because workspace package dist output is missing, build with dependencies first:

pnpm --filter test-studio... build