Rivet Agents & Sandbox Agent

Rivet's agents repository ships two pieces of harness infrastructure. Rivet Agents runs agents such as Pi as durable Rivet Actors whose memory survives restarts. Sandbox Agent is a static Rust server that runs inside a sandbox (E2B, Daytona, Modal, Cloudflare Containers, Docker and others) and exposes one HTTP/SSE API to control Claude Code, Codex, OpenCode, Cursor, Amp or Pi, handling streaming events, permissions and sessions. It normalizes agent events into a universal session schema that can be persisted to Postgres, ClickHouse or Rivet for replay and audit, and also runs as an embedded TypeScript SDK.