FOSM gives your Rails models a formal, enforced lifecycle with states, events, guards, side-effects, and an AI agent interface. Business rules live in the model, not scattered across callbacks.

Embeds a FOSM-aware MCP server and ACP agent into your Rails development environment, giving coding agents (Claude Code, Codex, Copilot) runtime intelligence: database queries, logs, code evaluation, and deep introspection of FOSM lifecycle definitions, state machines, transitions, guards, and audit trails. Built on the FOSM (Finite Object State Machine) paradigm — declarative lifecycles for business objects where AI agents operate within bounded, auditable state machines.

Gives Gemlings agents browser control via Playwright. Named persistent pages, auto-connect to Chrome, screenshots, and sandboxed file I/O. Zero telemetry.