Build an engineering system where coding agents plan, verify, and remember
ECC automates the process of agents planning before work, verifying changes with tests, and converting recurring success patterns into reusable skills. It embeds this engineering workflow as the agent's default behavior, eliminating the need to input complex instructions for every prompt and establishing a systematic environment where agents plan and review their own work.
Redesigning the agent's workflow
ECC guides agents to follow a cycle of 'plan -> test -> implement -> review -> verify -> remember -> improve.' This enforces a method where agents verify changes with tests, re-review their work in new contexts, and retain important information. Once installed, this process becomes the agent's default behavior without requiring explicit instructions in every prompt. It operates on the principle of optimizing the context window while maintaining all other state permanently.
Included agents, skills, and security components
This repository provides a large number of specialized agents and skills for various development scenarios.
- AgentShield security scanning It includes built-in functionality to scan prompts, hooks, MCP configurations, permissions, secrets, and agent files to detect security issues.
- Hooks and memory system It provides hooks and memory features that handle runtime enforcement, session summaries, persistent learning, instincts, and context control.
Installation paths and supported environments
ECC works best with Claude Code and supports guided installation paths for Codex and Kimi Code. It provides adapters with limited functionality for other agents or editors such as Cursor, OpenCode, Gemini, Zed, and GitHub Copilot. When using multiple agents simultaneously, you must select only one installation method per agent to avoid issues caused by duplicate installations. You must check the support status matrix before assuming feature parity for a specific agent.
Pre-application checks and license
ECC is open source distributed under the MIT license, allowing for personal and commercial use. However, it does not provide identical features across all agents, so you must verify the support status of the specific agent (harness) you intend to use. Some agents, such as Cursor or Gemini, use an adapter approach rather than native plugin support, which may limit hook or native skill discovery features. Before installing, you must install only from official channels (the GitHub repository, npm packages ecc-universal, ecc-agentshield) and avoid third-party re-uploads or unofficial mirrors, which may contain malicious code. Additionally, note that using multi-* commands requires a separate ccg-workflow runtime installation.
