affaan-m /
ECC
Agents, skills, hooks and memory that add an engineering workflow to coding agents
- 286.6k stars
- 15.8k stars since 3 Oct
- JavaScript
- Updated 2 days ago
- Some experience
- Agent skills & plugins
A coding agent can write code, but it won't follow a steady process unless you tell it to. ECC packages that process once. The README describes the loop as plan, test, implement, review, verify, remember, improve.
You install it as a plugin (ecc@ecc in Claude Code) using a guided setup run through npx. It adds agents for planning, review, build repair, security and architecture. It adds skills for things like TDD, research and docs. Hooks enforce steps and save session summaries. Rules are optional, and you pick them by language or project.
It works best with Claude Code. Codex has a supported sync path, and the guided installer also covers Kimi Code. Cursor, OpenCode, Gemini, Zed, Copilot and others get adapters with fewer features, so check the README's support matrix first. It also includes AgentShield, which scans prompts, hooks, MCP config, permissions and secrets. The repo is MIT-licensed. A paid hosted GitHub App for private repos also exists.
What it does
Agents for specific jobs
68 agents cover planning, review, build repair, security, architecture and domain work. The README says the agent reviews its own work from a fresh context.
A large skill library
293 skills cover TDD, research, security, docs, frontend, data, ML and operations. 94 legacy command shims remain as entry points while the project moves to a skills-first design.
Hooks, memory and learning
Hooks enforce steps and write session summaries. Continuous learning keeps instincts and turns repeated wins into reusable skills.
AgentShield scanning
Scans agent setups for problems in prompts, hooks, MCP config, permissions, secrets and agent files.
Guided multi-harness install
A wizard sets up Claude Code, Codex and Kimi Code. It shows each destination, checks before writing and asks for one final confirmation.
What you could build
- Give Claude Code a plan, test and review routine without writing it into every prompt.
- Scan your agent hooks, MCP config and permissions for risky settings with AgentShield.
- Apply language-specific coding rules to an agent across a project.
- Keep session summaries and learned habits so the agent carries context between sessions.
- Set up the same workflow in Claude Code and Codex with one guided install.
Get started
You need Node.js 18 or newer, Git and Claude Code 2.1 or newer. Run the guided setup, choose a scope and hook profile (the README suggests Global user and Standard for personal use), then start a new Claude Code session and run /plugin list to confirm ecc@ecc is enabled. Install only from the official sources the README lists.
npx ecc-universal@2.2.3 setupnpx ecc-universal@2.2.3 install --guidedCommands are copied from the project's README. Read it on GitHub for the full setup.
Anything better than ECC?
ECC is the most complete ready-made workflow bundle for coding agents here, with the largest adoption and multi-harness install. Look elsewhere only if you want a lighter, more opinionated skill set, or a domain-specific one such as game development.
-
agent-skillsAlternative
Pick it if you want a small, readable set of 25 lifecycle skills (spec, plan, build, test, review, ship) rather than a large framework.
Trade-off: No agents, hooks, memory or security scanning, so you get far less automation and must wire up enforcement yourself.
-
agentmemoryUse alongside
Add it to give ECC's workflow persistent memory shared across Claude Code, Cursor and Codex sessions through a local server.
Trade-off: Adds a running memory server to maintain, and it overlaps with ECC's own memory and learning features.
-
Claude-Code-Game-StudiosAlternative
Pick it if you are a solo developer building a game in Godot, Unity or Unreal and want studio-style agent roles and QA.
Trade-off: Game-specific and Claude Code only, so it is much less useful for general software work.
-
claude-skillsAlternative
Pick it if you want skills across many tools and non-engineering areas like marketing, product and compliance, not only coding workflow.
Trade-off: Broad but shallower on engineering process, with no dedicated hooks, memory or verification workflow like ECC's.
More in Agent skills & plugins
superpowers
A set of skills that makes coding agents plan, test and review before they write code
mattpocock/skills
Small, editable agent skills for planning, testing and reviewing code with AI
andrej-karpathy-skills
A CLAUDE.md file that tells Claude Code to ask first, keep code small, edit narrowly
anthropics/skills
Anthropic's example Agent Skills: folders of instructions Claude loads per task
ponytail
A skill that makes AI coding agents write the least code that works
gstack
Slash-command skills that give Claude Code roles like reviewer, QA and release engineer
addyosmani/agent-skills
A pack of 25 Markdown skills that guide AI coding agents from spec to ship
taste-skill
Agent skills that steer AI coding tools toward better layout, type and motion
archify
Agent skill that turns a description or a codebase into an interactive HTML diagram
impeccable
A design skill for AI coding agents that steers them away from generic frontend looks