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 cdeistopened/skill-stacknpx agentmods add plugins/cdeistopened/skill-stack/marketplacegit clone --depth 1 https://github.com/cdeistopened/skill-stackGrade A, and why
anthropic-agent-skills 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.
This is a copy
91% identical to anthropic-agent-skills — 10 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.
What it actually says
{
"name": "anthropic-agent-skills",
"owner": {
"name": "Keith Lazuka",
"email": "[email protected]"
},
"metadata": {
"description": "Anthropic example skills",
"version": "1.0.0"
},
"plugins": [
{
"name": "document-skills",
"description": "Collection of document processing suite including Excel, Word, PowerPoint, and PDF capabilities",
"source": "./",
"strict": false,
"skills": [
"./skills/xlsx",
"./skills/docx",
"./skills/pptx",
"./skills/pdf"
]
},
{
"name": "example-skills",
"description": "Collection of example skills demonstrating various capabilities including skill creation, MCP building, visual design, algorithmic art, internal communications, web testing, artifact building, Slack GIFs, and theme styling",
"source": "./",
"strict": false,
"skills": [
"./skills/algorithmic-art",
"./skills/brand-guidelines",
"./skills/canvas-design",
"./skills/doc-coauthoring",
"./skills/frontend-design",
"./skills/internal-comms",
"./skills/mcp-builder",
"./skills/skill-creator",
"./skills/slack-gif-creator",
"./skills/theme-factory",
"./skills/web-artifacts-builder",
"./skills/webapp-testing"
]
}
]
}
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 · 46 lines scan A 1a6cc07d4420
anthropic-agent-skills is a plugin published in the GitHub repository cdeistopened/skill-stack (27 stars, last pushed 1mo 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 91% identical to anthropic-agent-skills, differing in 10 lines, and is treated as a copy.
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