v5.0.0-alpha.5 — Mission Studio

Starlight now includes Mission Studio, a local workspace that turns the existing agent runtime into something you can try and inspect visually.

• Run two working presets: a verified order report and an HTTP service-health report.
• Follow agent progress, inspect results and evidence, preview generated Markdown, and export JSON reports.
• Validate custom missions, load your own agents at startup, set time budgets, and cancel active work.
• Browse saved history with explicit unfinished-checkpoint and storage-error states.

Start from a checkout with Node.js 22+:

npm ci
npm run studio

Open the private local URL printed in the terminal. The included examples require no API keys.

The server binds only to 127.0.0.1, uses a fresh session token for API access, rejects unexpected Host/Origin headers, and bounds request sizes, active runs, streams, artifact previews, and shutdown. Custom agents are trusted local code; this is a single-user local tool. There is no hosted execution, automatic retry/resume, or universal planner. The wire protocol remains 1.0.

The attached package was checked through installation into a clean directory, both real examples, Studio API/static assets, cancellation, artifact preview, and persisted history. The release gate also runs unit/integration and protocol tests, lint, TypeScript/schema/documentation checks, a cross-process proof, website checks, and a full dependency audit. Compatible fixes for brace-expansion and fast-uri address newly reported development-dependency advisories.

Studio guide · Website · Changelog

Preview release: this is the current 5.x platform. Legacy v1.3.4 is the old browser implementation. Download the .tgz and SHA256SUMS below; this release does not publish a new npm registry version.