Aeon is an open-source agent harness and orchestration framework created by aeonfun. It provides standardized agent skills, tool packs, and operator console integrations designed to enhance and coordinate workflows across terminal and IDE-based coding agents. Day-to-day operation centers around plugin manifests and declarative configurations, including `aeon.yml`, `AGENTS.md`, and `llms.txt`. Aeon connects directly into agent environments such as Claude Code, OpenAI Codex, and Cline via Model Context Protocol (MCP) servers and dedicated plugin marketplace registries. It allows developers to invoke structured skill packs and operator interfaces straight from their existing CLI agent sessions. What sets Aeon apart is its multi-harness compatibility layer. Rather than operating as an isolated CLI chatbot, Aeon standardizes operator skill distribution across disparate agent ecosystems like Claude Code plugins, Codex plugins, and Cline MCP integrations from a single unified repository structure. Aeon is open source on GitHub and designed to be integrated into both local developer environments and automated agent pipelines without proprietary licensing lock-in.
Tags: agent harness, ai agent, cli, coding agent, developer tools, OpenSource