ACE

ACE is an AI agent framework that acts as a package manager for reproducible, orchestrator-driven agentic coding environments, aimed at development teams automating multi-stage coding workflows. The project describes itself as "npm for agentic coding environments": an open, Git-native package ecosystem where an environment is defined in a package.json-style manifest and installed straight from Git. Out of the box it orchestrates five role-based workers, an architect, frontend, backend, tester, and reviewer, each scoped to its own tools, policies, and constraints. Policy enforcement lets you require a code review before a merge, workspace isolation and restricted networking keep workers contained, and persistent memory plus event logging record what each agent did. Snapshot and restore let you capture an environment's state and roll back to it, which makes a run reproducible rather than a one-off. For teams in our directory comparing agent orchestration options, ACE's draw is that the whole environment is version-controlled and shareable like any other dependency. The core is MIT-licensed and open source with zero runtime dependencies, so you can self-host it without a vendor lock-in; an optional paid tier buys support rather than extra features. It is built for engineering teams, not for non-technical users.

Defining, installing, and orchestrating reproducible multi-agent coding environments with role-based workers and policy enforcement.