ScalePerformance
Sandbox IsolationSecurity

0
Dynamic Workers spawned
workers / sec
ms / worker
elapsed (s)

Each dot is a live Dynamic Worker — click any green dot to open its endpoint

Your Worker — trusted boundary
threadId: thread_8x7k2mNpQr_SENSITIVE
Secret credential — held server-side, never injected into sandbox
env.LOADER.load({
globalOutbound: null, // no internet
env: { MAIL: mailContext } // capabilities only
})
▼ injects capabilities, not secrets
Dynamic Worker Sandbox — AI Agent
Agent receives the MailContext toolbox:
env.MAIL.getContent() env.MAIL.sendReply(msg) env.MAIL.label(name)
env.MAIL.threadId → inaccessible via RPC
fetch("https://...") → blocked — globalOutbound: null
Click the button to load agent code into an isolated Dynamic Worker and execute it.