# ECC

> Agent harness optimization system with skills, hooks, and configs for coding agents

ECC (formerly Everything Claude Code) is an open-source repository of modular configurations, skills, instincts, hooks, and security guardrails for AI coding assistants. It provides battle-tested harness setups designed to optimize performance across Claude Code, Codex, Cursor, Gemini, and related agent tools.

Website: https://github.com/affaan-m/everything-claude-code

## What it is for

- Configure custom skills and automated hooks for Claude Code without starting from scratch
- Standardize AI agent rules, memory instincts, and guardrails across dev team environments
- Deploy pre-built MCP and plugin integrations into AI coding assistants like Cursor and Claude

## Features

- Modular skill definitions covering over 100 domain-specific developer capabilities
- Automated hooks and commands for common development workflows
- Multi-tool harnesses supporting Claude Code, Cursor, Codex, OpenCode, and Gemini
- Security guardrails and audit scripts to prevent unintended agent actions
- Instinct and memory templates to preserve context across long-running sessions
- Pre-configured Model Context Protocol (MCP) server setups

## Pricing

Open source

## Details

- Type: GitHub repo
- Category: [Development](https://xiry.app/topics/development.md)
- Topic: [Developer Tools](https://xiry.app/topics/development/developer-tools.md)
- Open source: yes
- Platforms: Command line, macOS, Linux, Windows
- For: Developers and software engineering teams using AI coding assistants and CLI agents like Claude Code or Cursor.
- Tags: claude code, ai agents, developer tools, mcp, cursor, llm workflows

## Why it was saved

- [@affaan, 17 January 2026](https://x.com/affaan/status/2012378465664745795): Ready-made configs to copy instead of writing each skill/hook from scratch.

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- [claude-office-skills](https://xiry.app/resources/claude-office-skills): Office document creation and editing skills for Claude Code CLI. (GitHub repo, Open source)
- [Domain SDK](https://xiry.app/resources/domain-sdk): TypeScript SDK for adding and managing custom customer domains across platforms (GitHub repo, Open source)
- [Eight Dev Tools, Zero Fluff — Part 6](https://xiry.app/resources/eight-dev-tools-zero-fluff-part-6): Curated list of eight front-end design and developer utility tools (List)
- [Framecap](https://xiry.app/resources/framecap): Command-line screen, camera, and audio recorder for macOS (Web app)

Updated 10 October 2026. Page: https://xiry.app/resources/ecc

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