The jhansi.io Runtime - jhansi.io

Responsibilities

Accept requests from the SDK or MCP layer.
Create an appropriate sandbox.
Run the requested workload.
Collect output and execution state.
Terminate and remove the environment.

Control plane, not model context

The runtime is where operational decisions belong: resource limits, timeouts, available images, network rules and eventually policy and credential controls. These decisions should not live in the agent’s reasoning loop or model context.

Implementation

The runtime is implemented as Petri, an open source FastAPI service. Users interact with it through the jhansi.io SDK or MCP server — the internal name is an implementation detail.