Garcon is an open-source AI agent orchestrator and harness developed by cfal. It is designed to manage coding agent lifecycles, execution environments, tool integration, and scheduled interactions across terminal and server workflows. Operating primarily through a command-line interface, Garcon orchestrates task execution by handling tool normalization, agent decision requests, nested task blockers, and permission boundaries. It supports execution adapters like OpenCode, coordinating native binary tools, scheduled prompt dispatches, and session token expansion. What sets Garcon apart is its focus on robust execution harness mechanics. It actively handles compaction, lifecycle boundaries, permission isolation, and scheduled automation with chat ID resolution, providing structured terminal output such as collapsible message views for developer inspection. Garcon is an open-source project hosted on GitHub under public development, aimed at developers seeking programmatic agent orchestration and reliable execution boundaries.
Tags: agent harness, ai agent, cli, coding agent, developer tools, OpenSource