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R

Rivet

DEVOPS
Velocity7.5

Rivet pivots from actor backend to a coding-agent OS, and is building the ecosystem to match.

agent-infrastructurewebassemblycoding-agentspackage-registryrustserverless
◆Current state
Rivet began as an actor and serverless backend platform — RivetKit, Rivet Actors, Rivet Compute — and has spent the last month reorienting around agentOS, a WebAssembly-based Linux environment for running coding agents without a heavy sandbox. The June and July releases show both threads running in parallel: native language SDKs (Rust, Effect) for Actors, and a fast-maturing agentOS that now has its own package registry.
◆Where it's heading
The center of gravity is shifting from hosting stateful actors to being the runtime coding agents execute inside. agentOS went from a v0.2 sandbox alternative to shipping a package registry and a sub-millisecond package manager in under two weeks, a sign Rivet wants to own the developer surface around agent execution, not just the compute underneath it.
◆Prediction
Expect agentOS to keep accreting ecosystem pieces — more registry content and tighter orchestration — while the Actors SDKs settle toward maintenance. A likely next move is deeper coupling between agentOS and Rivet Compute so agents run on Rivet's own cloud.

◆Recent moves

  1. 2d ago

    Building the World's Fastest Package Manager with agentOS

    A technical deep-dive on how agentOS installs packages in 130 microseconds — the engineering story behind the new registry rather than a separate release. It reinforces the performance angle Rivet is using to set agentOS apart from heavier sandboxes.

  2. 3d ago

    Introducing the agentOS Package Registry

    ⚡ SPARK

    The agentOS package registry gives the new runtime its own distribution layer — 'npm install' for the infrastructure an agent needs. It turns agentOS from a sandbox alternative into a platform with an ecosystem around it.

  3. 10d ago

    You Probably Don't Need an Expensive Sandbox for Coding Agents

    A thought-leadership post arguing coding agents need a virtual OS rather than an expensive sandbox. It is positioning content that frames the agentOS pitch, with no product change attached.

  4. 14d ago

    Introducing agentOS v0.2

    ⚡ SPARK

    agentOS v0.2 is the pivot point: a lighter, cheaper WebAssembly-based Linux VM for running any coding agent, with orchestration built in. It reframes Rivet's platform around agent execution rather than actor hosting.

  5. 20d ago

    Secure Exec v0.3

    Secure Exec's full Rust rewrite adds process isolation and Bun support, hardening the execution primitive agentOS depends on. Infrastructure groundwork more than a headline feature.

  6. 22d ago

    Introducing the Rust SDK for Rivet Actors

    A native, typed Rust SDK for Rivet Actors brings the platform to Rust developers. Part of a steady SDK expansion broadening Rivet's language reach.