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.
git clone --depth 1 https://github.com/belt-sh/skillsWrote 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.
[](https://agentmods.dev/plugins/belt-sh/skills/gemini-extension)<a href="https://agentmods.dev/plugins/belt-sh/skills/gemini-extension"><img src="https://agentmods.dev/badge/plugins/belt-sh/skills/gemini-extension/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.
<a href="https://agentmods.dev/plugins/belt-sh/skills/gemini-extension"><img src="https://agentmods.dev/badge/plugins/belt-sh/skills/gemini-extension.svg" alt="Reviewed on agentmods" width="80" height="20"></a>Grade A, and why
belt 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.
What it actually says
{
"name": "belt",
"version": "1.0.0",
"description": "Belt — the cloud platform for AI agents. Run hundreds of AI apps, manage knowledge, search and publish skills, connect MCP servers."
}
What ships with it
9 files beside gemini-extension.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- scripts/hook-post-tool.sh 48 B runs code
- scripts/hook-pre-compact.sh 46 B runs code
- scripts/hook-session-end.sh 46 B runs code
- scripts/hook-session-start.sh 48 B runs code
- scripts/hook-skill-post.sh 2.0 KB runs code
- scripts/hook-skill-use.sh 1.2 KB runs code
- scripts/hook-stop.sh 39 B runs code
- scripts/hook-user-prompt.sh 53 B runs code
- scripts/utils.sh 1.9 KB runs code
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 Changed 31714dffdbea
- 1mo ago First seen · 6 lines scan A 08876b4ad6fb
belt is a plugin published in the GitHub repository belt-sh/skills (2 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. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-27.
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