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 kernel/skillsnpx agentmods add plugins/kernel/skills/marketplacegit clone --depth 1 https://github.com/kernel/skillsGrade A, and why
kernel 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.
What it actually says
{
"$schema": "https://plugins.claude.ai/schema/marketplace.json",
"name": "kernel",
"description": "Automate web browsers in the cloud with Kernel. Create browsers, execute Playwright code, deploy web agents, and control browser instances via CLI. Use when building browser automations or web scraping workflows.",
"owner": {
"name": "Kernel",
"url": "www.kernel.sh"
},
"plugins": [
{
"name": "kernel-cli",
"author": {
"name": "Kernel"
},
"description": "CLI commands for managing browsers, deploying apps, and controlling browser instances. Use when working with the kernel command-line tool.",
"source": "./plugins/kernel-cli"
},
{
"name": "kernel-sdks",
"author": {
"name": "Kernel"
},
"description": "TypeScript and Python SDK skills for building browser automation with Kernel's Typescript and Python SDKs. Use when writing code to control browsers programmatically.",
"source": "./plugins/kernel-sdks"
},
{
"name": "generate-video",
"author": {
"name": "Kernel"
},
"description": "Generate crisp, perfectly smooth MP4 videos from web pages and animated visualizations by driving headless Chromium over CDP with deterministic frame-stepping, then encoding with ffmpeg. Use when making demo videos, explainer clips, or launch animations.",
"source": "./plugins/generate-video"
}
]
}
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 · 36 lines scan A 36f1bc31e4ba
kernel is a plugin published in the GitHub repository kernel/skills (10 stars, last pushed 5d 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 2026-08-31.
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