everything-claude-code-harness

Installation
SKILL.md

Everything Claude Code (ECC) — Agent Harness Performance System

Skill by ara.so — Daily 2026 Skills collection.

Everything Claude Code (ECC) is a production-ready performance optimization system for AI agent harnesses. It provides specialized subagents, reusable skills, custom slash commands, memory-persisting hooks, security scanning, and language-specific rules — all evolved from 10+ months of daily real-world use. Works across Claude Code, Cursor, Codex, OpenCode, and Antigravity.


Installation

Option 1: Plugin Marketplace (Recommended)

# Inside Claude Code, run:
/plugin marketplace add affaan-m/everything-claude-code
/plugin install everything-claude-code@everything-claude-code

Option 2: Manual Clone

Related skills
Installs
1.6K
GitHub Stars
4
First Seen
Mar 16, 2026