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 chrischall/gogcli-mcpnpx agentmods add plugins/chrischall/gogcli-mcp/gogcli-mcp-sheetsgit clone --depth 1 https://github.com/chrischall/gogcli-mcpGrade A, and why
gogcli-mcp-sheets 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
{
"name": "gogcli-mcp-sheets",
"displayName": "gogcli (Sheets)",
"version": "2.27.0",
"description": "Extended Google Sheets for Claude via gogcli — auth + full Sheets support",
"author": {
"name": "Chris Hall",
"email": "[email protected]"
},
"homepage": "https://github.com/chrischall/gogcli-mcp/tree/main/packages/gogcli-mcp-sheets",
"repository": "https://github.com/chrischall/gogcli-mcp",
"license": "MIT",
"keywords": [
"google",
"sheets",
"spreadsheet",
"gogcli",
"gog",
"tabs",
"formatting",
"named-ranges"
],
"skills": "./SKILL.md",
"mcp": "./.mcp.json"
}
What it installs
The manifest is a name and a version. 1 skill travel with it, and installing the plugin installs all of them — 65 tokens a session between them. Each is measured on its own page, and each can be installed alone.
What ships with it
1 file beside plugin.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.
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 · 26 lines scan A 263a9599bb73
gogcli-mcp-sheets is a plugin published in the GitHub repository chrischall/gogcli-mcp (1 stars, last pushed 2d 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 2026-08-31.
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