ECC
ECC is an open-source collection of skills, agents, hooks and workflow tools for coding agents. It supports planning, research-first development, memory, security scanning and reusable workflows across Claude Code, Codex and OpenCode.
Visit affaan-m/ECCOverview
ECC is an open-source toolkit that gives coding agents a shared engineering process across harnesses. It combines skills, agents, hooks, memory, planning tools and security scanning so agents can plan, test, review, verify and retain useful lessons. The open-source project is MIT-licensed, and a separate GitHub App adds repository workflow guidance and paid plans.
Key Features
- Includes 71 agents for planning, review, build repair, security, architecture and domain work.
- Provides 311 skills covering TDD, research, security, docs, frontend, data, ML and operations.
- Adds hooks, rules, unified memory and continuous learning for session summaries, handoffs and context controls.
- Includes AgentShield scanning for prompts, hooks, MCP configuration, permissions, secrets and agent files.
- Offers Plan Canvas for annotating plans in the browser and reviewing revisions in place.
- Supports Claude Code, Codex, Cursor, OpenCode, Kimi Code, GitHub and other harnesses with native or adapter-based integration.
Use Cases
- Reviewing code changes with a repeatable reviewer process.
- Checking security surfaces such as permissions, inputs and exposed secrets.
- Planning and coordinating work through annotated plans and a session overview.
- Carrying context between agents with saved handoffs and searchable project memory.
Getting Started
- Run npx ecc-universal@2.2.3 setup for guided package setup for Claude Code, Codex and Kimi Code.
- For a typical personal setup, choose Global user and Standard hooks, then confirm.
- After setup, start a new Claude Code session and run /plugin list to verify that ecc@ecc is enabled.
Deployment & Requirements
- The universal package requires Node.js 18 or newer.
- Claude plugin setup also requires Git and Claude Code 2.1 or newer on PATH.
Before You Adopt
- License: MIT. Review its terms before using, modifying, or distributing the project.
- AgentShield scanning is a review aid and does not guarantee that a repository or agent is safe.
- Install only from official channels because third-party re-uploads and unofficial mirrors may contain malware.
- Review requested GitHub permissions before installing the GitHub App.
