Submilli Runtime

Submilli Runtime is an open-source runtime environment designed to execute agent-generated TypeScript code securely inside WebAssembly with a semantic permission system. It enables business workflows where agents can perform actions like issuing refunds with finely controlled guardrails defined by Blueprints. It enforces permissions at the operation level rather than broad network or API scopes and includes curated packages for common APIs, providing an isolated, auditable environment for autonomous agent code execution.