A collection of core extensions for Claude Code, including agents, automatic actions, commands, and shared tools.

Use it as a base package when you need Claude Code agents, hooks, commands, or common automation tools.

It provides a general set of additions for extending how Claude Code works across projects.

cce-core — Plugin for Claude Code by nodnarbnitram

Install

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.

Clone the repo

git clone --depth 1 https://github.com/nodnarbnitram/claude-code-extensions

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/plugins/nodnarbnitram/claude-code-extensions/cce-core/github.svg)](https://agentmods.dev/plugins/nodnarbnitram/claude-code-extensions/cce-core)

Your own site

<a href="https://agentmods.dev/plugins/nodnarbnitram/claude-code-extensions/cce-core"><img src="https://agentmods.dev/badge/plugins/nodnarbnitram/claude-code-extensions/cce-core/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/plugins/nodnarbnitram/claude-code-extensions/cce-core"><img src="https://agentmods.dev/badge/plugins/nodnarbnitram/claude-code-extensions/cce-core.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured The manifest loads nothing itself; its 12 agents cost 725 tokens a session between them.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 88% copy Near-identical to another mod in the catalogue.

Security

Grade A, and why

cce-core 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 1mo ago.

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.

Origin

This is a copy

88% identical to cce-anthropic — 13 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/cce-core/.claude-plugin/plugin.json · 20 lines

What it actually says

{
  "name": "cce-core",
  "version": "1.0.0",
  "description": "Essential Claude Code extensions: core agents, hooks, commands, and universal tools",
  "author": {
    "name": "Claude Code Extensions Contributors",
    "url": "https://github.com/nodnarbnitram/claude-code-extensions"
  },
  "homepage": "https://github.com/nodnarbnitram/claude-code-extensions",
  "repository": "https://github.com/nodnarbnitram/claude-code-extensions",
  "license": "MIT",
  "keywords": [
    "core",
    "essential",
    "hooks",
    "automation",
    "workflow"
  ]
}

Contents

What it installs

The manifest is a name and a version. 12 agents travel with it, and installing the plugin installs all of them — 725 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Changes

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.

1mo ago First seen · 20 lines scan A c4e9533638e4

Subscribe to this mod's changes

cce-core is a plugin published in the GitHub repository nodnarbnitram/claude-code-extensions (16 stars, last pushed 6mo ago), 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. It is 88% identical to cce-anthropic, differing in 13 lines, and is treated as a copy.

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