ECC plugin for Codex

CommunityPluginProductivity

Harness-native ECC workflows for Codex: shared skills, production-ready MCP configs, and selective-install-aligned conventions for TDD, security scanning, code review, and autonomous development.

How to install ECC in Codex

1. Add the repo as a Codex plugin marketplace:

codex plugin marketplace add affaan-m/ECC

2. Install the plugin from it:

codex plugin add ecc@ecc

This repo ships a Codex marketplace file (.agents/plugins/marketplace.json). The first command adds it as a marketplace (Codex CLI reference); the second installs the plugin 'ecc'. 'ecc' is the marketplace name from that file. Check the repo README too. Command format: Codex CLI reference.

What it contains

Plugins in this marketplace (1)

  • ecc — Harness-native ECC workflows for Codex: shared skills, production-ready MCP configs, and selective-install-aligned conventions for TDD, security scanning, code review, and autonomous development.

Example prompts from the manifest

  • Use the tdd-workflow skill to write tests before implementation.
  • Use the security-review skill to scan for OWASP Top 10 vulnerabilities.
  • Use the verification-loop skill to verify correctness before shipping changes.

About this listing

ECC is a community plugin on GitHub by affaan-m. Its README documents a Codex install and the repo ships a Codex plugin manifest. It passed the CodexStacks quality filter for repos found this way (at least 500 stars, pushed in the last 90 days, not a fork or a list). OpenAI hasn't reviewed it and we haven't tested it. From its files we found 1 plugin. The manifest says version 2.2.3. It's one of 175 listings in the Productivity category. It also appears in best Codex plugins for security, best Codex plugins for code review.

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ECC FAQ

How do I install ECC in Codex?

Add the repo as a Codex plugin marketplace with codex plugin marketplace add affaan-m/ECC, then install it with codex plugin add ecc@ecc. Commands: the command format from the Codex CLI reference; check the repo README too.

Is ECC an official Codex plugin?

No. ECC is a community repo on GitHub by affaan-m. It passed the CodexStacks quality filter, but OpenAI hasn't reviewed it and we haven't tested it, so read the code before you install it.

What does ECC include?

From its manifest and repo files, ECC includes 1 plugin: ecc.

Details

Type
Plugin
Category
Productivity
Source
Community
Author
Affaan Mustafa
Version
2.2.3
License
MIT
GitHub stars
281,102 (at last sync)
Last push
2026-10-15
Manifest
.agents/plugins/marketplace.json
GitHub topics
ai-agents, anthropic, claude, claude-code, developer-tools, llm, mcp, productivity
Source
https://github.com/affaan-m/ECC
Website
https://ecc.tools
Listed via
GitHub search: README documents a Codex install
Tested by CodexStacks
Not yet

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For maintainers: badge and embeds

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Listed on CodexStacks

Markdown

[![Listed on CodexStacks](https://codexstacks.com/badge.svg)](https://codexstacks.com/p/ecc/)

HTML

<a href="https://codexstacks.com/p/ecc/"><img src="https://codexstacks.com/badge.svg" alt="Listed on CodexStacks" width="172" height="28"></a>

Embed card (static HTML and inline CSS, no JavaScript). Preview:

ECCCommunity Codex plugin · 1 pluginHarness-native ECC workflows for Codex: shared skills, production-ready MCP configs, and selective-install-aligned…View on CodexStacks →
<a href="https://codexstacks.com/p/ecc/" style="display:block;max-width:380px;box-sizing:border-box;padding:14px 16px;border:1px solid #3a2c26;border-radius:12px;background:#0d0b0a;color:#f3ece6;font:14px/1.45 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;text-decoration:none"><span style="display:block;font-size:16px;font-weight:700;color:#f3ece6">ECC</span><span style="display:block;margin:2px 0 8px;font-size:12px;color:#b5a9a1">Community Codex plugin · 1 plugin</span><span style="display:block;margin:0 0 10px;color:#ddd3cc">Harness-native ECC workflows for Codex: shared skills, production-ready MCP configs, and selective-install-aligned…</span><span style="font-size:12px;font-weight:600;color:#ffb347">View on CodexStacks →</span></a>

Markdown summary

**[ECC on CodexStacks](https://codexstacks.com/p/ecc/)**: Community Codex plugin with 1 plugin.

More on badges, embeds and keeping your listing up to date: CodexStacks for plugin authors.

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