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.
npx agentmods add plugins/firish/webfetch/marketplace/plugin marketplace add firish/webfetchgit clone --depth 1 https://github.com/firish/webfetchGrade A, and why
webfetch 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": "webfetch",
"owner": {
"name": "Rishi Gulati"
},
"description": "Self-hosted web search for LLM agents - same accuracy as hosted web_search at a third of the cost",
"plugins": [
{
"name": "webfetch",
"source": "./plugin",
"description": "web_search, fetch_url, save_finding, status, and savings_report tools backed by a local search -> fetch -> rank pipeline with semantic caching. Up to 8x fewer input tokens and 3x lower cost than hosted web search. Needs uv; API keys optional (DDG works with none).",
"category": "search",
"tags": ["web-search", "mcp", "cache", "cost-optimization", "research"]
}
]
}
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 · 17 lines scan A e52848590edb
webfetch is a plugin published in the GitHub repository firish/webfetch (55 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 2026-08-30.
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