---
title: "ECC"
type: "tool"
slug: "affaan-m-ecc"
canonical_url: "https://www.graphcanon.com/tools/affaan-m-ecc"
github_url: "https://github.com/affaan-m/ECC"
homepage_url: "https://ecc.tools"
stars: 226962
forks: 34701
primary_language: "JavaScript"
license: "MIT"
categories: ["ai-agents", "developer-tools"]
tags: ["llm", "productivity", "claude", "claude-code", "anthropic", "developer-tools", "ai-agents", "mcp"]
updated_at: "2026-07-07T18:55:35.418643+00:00"
---

# ECC

> The agent harness performance optimization system

ECC is a comprehensive AI agent system for optimizing skills, instincts, memory, security, and development processes across various AI tool harnesses.

## Facts

- Repository: https://github.com/affaan-m/ECC
- Homepage: https://ecc.tools
- Stars: 226,962 · Forks: 34,701 · Open issues: 73 · Watchers: 1,161
- Primary language: JavaScript
- License: MIT
- Last pushed: 2026-07-06T04:55:16+00:00

## Categories

- [AI Agents](/categories/ai-agents.md)
- [Developer Tools](/categories/developer-tools.md)

## Tags

llm, productivity, claude, claude-code, anthropic, developer-tools, ai-agents, mcp

## Related tools

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- [langflow](/tools/langflow-ai-langflow.md) - Langflow is a powerful platform for building and deploying AI-powered agents and workflows. (★ 151,298)
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- [firecrawl](/tools/firecrawl-firecrawl.md) - The API to search, scrape, and interact with the web at scale. (★ 147,117)

## README (excerpt)

```text
**Language:** English | [Português (Brasil)](docs/pt-BR/README.md) | [简体中文](README.zh-CN.md) | [繁體中文](docs/zh-TW/README.md) | [日本語](docs/ja-JP/README.md) | [한국어](docs/ko-KR/README.md) | [Türkçe](docs/tr/README.md) | [Русский](docs/ru/README.md) | [Tiếng Việt](docs/vi-VN/README.md) | [ไทย](docs/th/README.md) | [Deutsch](docs/de-DE/README.md) | [Español](docs/es/README.md)























> [!WARNING]
> **Official sources only.** Install ECC only from verified channels: the GitHub repository [github.com/affaan-m/ECC](https://github.com/affaan-m/ECC), the npm packages [`ecc-universal`](https://www.npmjs.com/package/ecc-universal) and [`ecc-agentshield`](https://www.npmjs.com/package/ecc-agentshield), the [GitHub App](https://github.com/apps/ecc-tools), the plugin slug `ecc@ecc`, and the project website [ecc.tools](https://ecc.tools). Third-party re-uploads and unofficial mirrors are not maintained or reviewed by the project and may contain malware.

**211.9K+ stars** | **32.5K+ forks** | **230+ contributors** | **12+ language ecosystems** | **Cross-harness agent workflows**

---

<div align="center">

**Language / 语言 / 語言 / Dil / Язык / Ngôn ngữ / Idioma**

[**English**](README.md) | [Português (Brasil)](docs/pt-BR/README.md) | [简体中文](README.zh-CN.md) | [繁體中文](docs/zh-TW/README.md) | [日本語](docs/ja-JP/README.md) | [한국어](docs/ko-KR/README.md)
 | [Türkçe](docs/tr/README.md) | [Русский](docs/ru/README.md) | [Tiếng Việt](docs/vi-VN/README.md) | [ไทย](docs/th/README.md) | [Deutsch](docs/de-DE/README.md) | [Español](docs/es/README.md)

</div>

---

**The harness-native operator system for agentic work. Built from real-world multi-harness engineering workflows.**

Not just configs. A complete system: skills, instincts, memory optimization, continuous learning, security scanning, and research-first development. Production-ready agents, skills, hooks, rules, MCP configurations, and legacy command shims evolved over 10+ months of intensive daily use building real products.

Works across **Codex**, **Claude Code**, **Cursor**, **OpenCode**, **Gemini**, **Zed**, **GitHub Copilot**, and other AI agent harnesses.

ECC v2.0.0 adds the public Hermes operator story on top of that reusable layer: start with the [Hermes setup guide](docs/HERMES-SETUP.md), then review the [2.0.0 release notes](docs/releases/2.0.0/release-notes.md) and [cross-harness architecture](docs/architecture/cross-harness.md).

---

<table>
<tr>
<td width="25%" align="center">
  <a href="https://ecc.tools/pricing">
    <strong> ECC Pro</strong><br />
    <sub>Private repos · GitHub App · $19/seat/mo</sub>
  </a>
</td>
<td width="25%" align="center">
  <a href="https://github.com/sponsors/affaan-m">
    <strong> Sponsor</strong><br />
    <sub>Fund the OSS · From $5/mo</sub>
  </a>
</td>
<td width="25%" align="center">
  <a href="https://github.com/affaan-m/ECC/discussions">
    <strong>Community</strong>
    <br />
    <sub>Discussions · Q&amp;A · Show & Tell</sub>
  </a>
</td>
<td width="25%" align="center">
  <a href="https://github.com/apps/ecc-tools">
    <strong> GitHub App</strong><br />
    <sub>Install · PR audits · Free tier</sub>
  </a>
</td>
</tr>
</table>

<sub>**OSS stays free.** This repo is MIT-licensed forever. ECC Pro is the hosted GitHub App for private repos. <a href="https://github.com/sponsors/affaan-m">Sponsors</a> and <a href="https://ecc.tools/pricing">Pro subscribers</a> fund the work — that's why a single maintainer ships weekly across 7 harnesses.</sub>

<div align="center">

<sub><strong>Business sponsors</strong></sub>

<table>
<tr>
<td align="center" width="220">
  <a href="https://www.coderabbit.ai">
    <img src="assets/images/sponsors/coderabbit.png" width="96" alt="CodeRabbit logo" /><br />
    <strong>CodeRabbit</strong>
  </a>
</td>
<td align="center" width="220">
  <a href="https://www.greptile.com/go/ecc">
    <img src="assets/images/sponsors/greptile.png" width="96" alt="Greptile logo" /><br />
    <strong>Greptile</strong>
  </a>
<
```

---

**Machine-readable endpoints**

- JSON: [`/api/graphcanon/tools/affaan-m-ecc`](/api/graphcanon/tools/affaan-m-ecc)
- LLM index: [/llms.txt](/llms.txt)
- Full corpus: [/llms-full.txt](/llms-full.txt)

_GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_