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 jeffh/claude-pluginsnpx agentmods add plugins/jeffh/claude-plugins/marketplacegit clone --depth 1 https://github.com/jeffh/claude-pluginsGrade A, and why
jeffh-claude-plugins 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
{
"$schema": "https://anthropic.com/claude-code/marketplace.schema.json",
"name": "jeffh-claude-plugins",
"version": "1.3.0",
"description": "Various Plugins for Claude Code",
"owner": {
"name": "Jeff Hui",
"email": "[email protected]"
},
"plugins": [
{
"name": "discuss",
"description": "Interactive discussion workflows for planning features, creating reference docs, and clarifying thoughts through iterative Q&A",
"source": "./discuss",
"category": "productivity",
"version": "2026-01-12",
"author": {
"name": "Jeff Hui",
"email": "[email protected]"
}
},
{
"name": "humanlayer",
"description": "Commands and agents from humanlayer, but without the thought syncing",
"source": "./humanlayer",
"category": "development",
"version": "2026-02-16",
"author": {
"name": "HumanLayer"
}
},
{
"name": "codex",
"description": "Delegate implement, review, and computer-use tasks to a Codex (GPT) subagent, with support for choosing the GPT model",
"source": "./codex",
"category": "development",
"version": "2026-07-09",
"author": {
"name": "Jeff Hui",
"email": "[email protected]"
}
},
{
"name": "jj",
"description": "Jujutsu (jj) version control skills for committing, pushing, opening PRs, and rebasing",
"source": "./jj",
"category": "development",
"version": "2026-07-09",
"author": {
"name": "Jeff Hui",
"email": "[email protected]"
}
},
{
"name": "gh",
"description": "GitHub CLI operations and repository management",
"source": "./gh",
"category": "development",
"version": "2025-12-15",
"author": {
"name": "Jeff Hui",
"email": "[email protected]"
}
}
]
}
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 · 67 lines scan A 145a9b2fdee5
jeffh-claude-plugins is a plugin published in the GitHub repository jeffh/claude-plugins (12 stars, last pushed 18d ago), licensed Apache-2.0. 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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