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 freema/mcp-gsheetsnpx agentmods add plugins/freema/mcp-gsheets/gsheetsgit clone --depth 1 https://github.com/freema/mcp-gsheetsGrade A, and why
gsheets 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": "gsheets",
"description": "Google Sheets integration for reading, writing, and managing spreadsheets. Create charts, format cells, and automate data operations.",
"version": "1.0.0",
"author": {
"name": "Tomáš Grasl",
"url": "https://www.tomasgrasl.cz/"
},
"repository": "https://github.com/freema/mcp-gsheets",
"license": "MIT"
}
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 · 12 lines scan A 30592175415d
gsheets is a plugin published in the GitHub repository freema/mcp-gsheets (95 stars, last pushed 15d 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 2026-08-30.
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