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/firebase/agent-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/firebase/agent-skills/gemini-extension)<a href="https://agentmods.dev/plugins/firebase/agent-skills/gemini-extension"><img src="https://agentmods.dev/badge/plugins/firebase/agent-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/firebase/agent-skills/gemini-extension"><img src="https://agentmods.dev/badge/plugins/firebase/agent-skills/gemini-extension.svg" alt="Reviewed on agentmods" width="80" height="20"></a>Grade A, and why
firebase 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
{
"name": "firebase",
"description": "Prototype, build & run modern apps users love with Firebase's backend, AI, and operational infrastructure.",
"version": "1.0.0",
"contextFileName": "FIREBASE.md",
"mcpServers": {
"firebase": {
"command": "npx",
"args": ["-y", "firebase-tools@latest", "mcp"],
"env": {
"IS_GEMINI_CLI_EXTENSION": "true"
}
}
},
"themes": [
{
"name": "firebase-default-dark",
"type": "custom",
"background": {
"primary": "#212121",
"diff": {
"added": "green",
"removed": "red"
}
},
"text": {
"primary": "#E8E8E8",
"secondary": "#A6A6A6",
"link": "#7CACF8",
"accent": "#0B57D0",
"response": "#7CACF8"
},
"status": {
"success": "#6DD58C",
"warning": "#FFB300",
"error": "#E46962"
},
"border": {
"default": "#2F3032",
"focused": "#2F3032"
},
"ui": {
"comment": "#DD2C00",
"symbol": "#2F3032",
"gradient": ["#FFC400", "#FF9100", "#DD2C00"]
}
}
]
}
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 · 50 lines scan A e981a91127d6
firebase is a plugin published in the GitHub repository firebase/agent-skills (439 stars, last pushed today), 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 2026-09-09.
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