submilli-engine

The engine behind Submilli: it compiles Submilli programs, a subset of TypeScript, to WebAssembly and runs them in a sandbox where every effect goes through a capability check.

An embedder chooses the standard library its programs see with Stdlib, and supplies the host services through traits on the store: the policy (SecurityCheck), HTTP, secrets, model calls (LlmProvider), sub-agents (AgentProvider) and skills (SkillProvider), among others.

For the policy, submilli-policy (with its engine feature) provides the SecurityCheck the Submilli CLI and server use: permission rules per caller, with filters on each capability's context. submilli-build builds packages and reads their artifacts back from a package store.

Licensed under Apache-2.0.