It handles agent-brain harnesses without requiring application-level recovery logic or persisted state machines, using operational replay instead of session schema.
Komputer is a durable runtime for stateful WebAssembly programs. It captures admitted continuations and journals their interactions so a fresh process can continue after failure or movement; broader Wasm runtimes can recover by replay instead.
The current product focus is agent brains: ordinary async harnesses with conversation, planning, tool, and stream state in memory. The harness does not need an application reducer, recovery callback, or persisted state machine for every await point.
Komputer is early software. Its durable formats and compatibility profiles are versioned, but the public API is not yet stable.
For this use case, the brain is the Wasm harness: its control loop, in-memory state, pending futures, model stream, and tool orchestration. Hands such as sandboxes, MCP servers, model providers, and credentialed services stay outside it and are reached through explicit network or policy gateways. Credentials are never given to the guest.
Komputer's journal is operational recovery history, not an application session schema. A product may still keep a semantic conversation log for context, audit, and brain upgrades; it does not need to encode every internal harness transition there just to survive a process failure.
Komputer is committed to Wasm and does not aim to support native binaries, full POSIX, or act as a general container replacement. See Compatibility for the admitted program shapes and capability limits.
The primary demo runs an ordinary Rust WASI brain with a real streaming model. It relocates the executor during inference and keeps the same WebSocket, provider response, conversation, plan, and local tool state. The guest contains no recovery path or application-level state encoding:
export OPENAI_API_KEY=...
./demos/agent/run.sh
Prerequisites are Rust with the declared Wasm targets, Binaryen's wasm-opt,
the S2 CLI with local mode, curl, and Python 3. The key stays in a native
policy gateway and is not supplied to the guest, executor, or computer
specification. See the demo contract.
For a credential-free smoke test of relocation with a smaller TCP counter
guest, run ./demos/relocation/run.sh.
A durable runtime for stateful WebAssembly programs
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