Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add plugins/affaan-m/ecc/marketplace/plugin marketplace add affaan-m/ECCgit clone --depth 1 https://github.com/affaan-m/ECCGrade A, and why
ecc scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
Copies of this mod
1 near-identical copy found in the catalogue:
- ecc — 88% identical, 4 lines differ
What it actually says
{
"name": "ecc",
"owner": {
"name": "Affaan Mustafa",
"email": "[email protected]"
},
"metadata": {
"description": "Harness-native ECC skills, hooks, rules, MCP conventions, and operator workflows"
},
"plugins": [
{
"name": "ecc",
"source": "./",
"description": "Harness-native ECC operator layer - 68 agents, 286 skills, 94 legacy command shims, reusable hooks, rules, selective install profiles, and production-ready workflows for Claude Code, Codex, OpenCode, Cursor, and related agent harnesses",
"version": "2.2.0",
"author": {
"name": "Affaan Mustafa",
"email": "[email protected]"
},
"homepage": "https://ecc.tools",
"repository": "https://github.com/affaan-m/ECC",
"license": "MIT",
"keywords": [
"agents",
"skills",
"hooks",
"commands",
"tdd",
"code-review",
"security",
"best-practices"
],
"category": "workflow",
"tags": [
"agents",
"skills",
"hooks",
"commands",
"tdd",
"code-review",
"security",
"best-practices"
],
"strict": false
}
]
}
What ships with it
3 files beside marketplace.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- yesterday First seen · 48 lines scan A 070be9ebda74
ecc is a plugin published in the GitHub repository affaan-m/ECC (245,028 stars, last pushed yesterday), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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