Cradle

Your agent as a directory. One pi install, many agents.

my-agent/ extensions/ optional pi extensions: custom tools, commands, hooks sandbox/ optional sandbox posture (nono.json, sbx.json) skills/ optional markdown playbooks, loaded when relevant settings.json optional pi-native settings (model selection) models.json optional pi-native custom provider definitions SYSTEM.md required system prompt (role + instructions)

curl -fsSL https://coryrylan.github.io/cradle/install.sh | bash

cradle run ./my-agent

Cradle makes it easy to create custom Pi Agents via a folder with a SYSTEM.md or APPEND_SYSTEM.md. Everything else (model config, skills, extensions, sandbox posture) is an optional file you add as the agent grows. cradle is the runtime that reads that folder and launches the pi coding agent configured from it. Add sandbox/nono.json to sandbox that run with nono, or sandbox/sbx.json to run it inside a Docker Sandboxes microVM instead.

Cradle

Your agent as a directory. One pi install, many agents.

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