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.
/plugin marketplace add sshh12/claude-pluginsnpx agentmods add plugins/sshh12/claude-plugins/cc-essentialsgit clone --depth 1 https://github.com/sshh12/claude-pluginsGrade A, and why
cc-essentials 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 2d 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.
What it actually says
{
"name": "cc-essentials",
"version": "0.5.0",
"description": "Essential meta-skills for working with Claude Code: builders for skills and long-running agent teams",
"author": {
"name": "shrivu"
},
"repository": "https://github.com/shrivu/claude-plugins",
"license": "MIT",
"keywords": ["skills", "meta", "authoring", "essentials"]
}
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.
- 2d ago First seen · 12 lines scan A 78671e85c746
cc-essentials is a plugin published in the GitHub repository sshh12/claude-plugins (22 stars, last pushed 2mo 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. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other plugins, from other repositories
playwright
Browser automation and end-to-end testing MCP server by Microsoft. Enables Claude to interact with web pages, take screenshots, fill forms, click elements, and perform automated browser testing workflows.
browser-harness
Install browser-harness directly from this repo.
browser-harness
Direct browser control via CDP. Drives the user's real Chrome (or a Browser Use cloud browser) with coordinate clicks, screenshots, and Python helpers — no selector hunting. Requires the one-time browser-harness CLI install (see the skill's references/install.md).
arxiv-viewer
View, search, download, and read academic papers from arXiv. Supports API queries, web scraping via Actionbook, and HTML paper reading via ar5iv.
adobe-skills
Plugin marketplace listing 15 plugins: stardust, web, aem-edge-delivery-services, aem-cloud-service, aem-6-5-lts.
web-dev-skills
DDD-driven development skills, sub-agents and workflow commands for Rust, React, miniapp, and Flutter projects.