ECC: Equipping coding agents with engineering systems via 68 agents and 286 skills

It addresses the problem of coding agents being able to write code but lacking systematic engineering processes. ECC embeds the sequence of planning, testing, implementation, review, verification, memory, and improvement into the agent's default behavior. Once installed, the agent operates in this manner without the need to reconfigure the process for every prompt.

It provides 68 specialized agents, 286 skills, and 94 commands. The agents specialize in planning, review, build recovery, security, architecture, and domain tasks. The skills cover diverse areas including TDD, research, security, documentation, frontend, data, ML, and operations.

It focuses on context window optimization. Important information is stored permanently, and repeatedly successful patterns are converted into reusable skills and workflows. Security scans for prompts, hooks, MCP settings, permissions, secrets, and agent files are performed via AgentShield.

It works best with Claude Code and supports the Codex sync path. It provides adapters with limited functionality for other harnesses such as Cursor, OpenCode, Gemini, Zed, GitHub Copilot, Antigravity, and Qwen. It is released under the MIT license, with a single maintainer deploying updates across 7 harnesses weekly.