{"slug": "show-hn-plugvet-hygiene-grades-for-ai-agent-plugins-with-the-evidence-shown", "title": "Show HN: PlugVet, hygiene grades for AI agent plugins with the evidence shown", "summary": "PlugVet launched as an independent directory that has graded 11,739 AI agent skills and plugins — including Claude Code skills, Cursor plugins, Codex plugins and MCP servers — publishing 1,974 A grades, 6,378 B grades, 2,481 C grades and 906 D grades, with no F grades published. Each entry carries a letter grade from eight hygiene checks covering permissions, install and update steps, network, secrets, agent instructions, obfuscation, licence and maintainer activity, alongside the evidence and the date it was reviewed; PlugVet states payment does not change a grade and that D- or F-graded items cannot take a paid slot. Paid placements run from £39 a month for a featured listing to £499 a month for a homepage sponsor, and PlugVet cautions the grade is a hygiene screen, not a security guarantee.", "body_md": "### A directory\n\nClaude Code skills, Cursor plugins, Codex plugins and MCP servers, in one place. The directory lists every entry the scanner has graded and published.\n\nIndependent directory\n\nPlugVet is an independent directory of AI agent skills and plugins. Every entry is meant to show a public grade, the checks behind it, and the date we looked.\n\nFor people who build with coding agents, ship vibe coded apps, or spend the weekend making a game.\n\nGot a GitHub link? [Look up a grade in seconds](https://plugvet.com/lookup/).\n\n**Scanner coming soon** Paste any GitHub repo and we'll grade it.\n\n11,739entries graded\n\nA, B, C and D grades are published automatically. F grades are held and not listed. Updated each time the site is rebuilt.\n\n1,000 entries were graded on , the latest date graded in the directory. These 12 are a sample from that day, in a fixed but arbitrary order. It is not a ranking, and it says nothing about quality.\n\nFive letters. Each one has its own shape and colour, so the grade does not depend on colour alone. We show what was checked and the date.\n\nSoon\n\nA basic check for common problems in a vibe coded app. The checker is not connected yet. You can read what it will look for.\n\nWe read the source, run the same hygiene checks on every entry, and publish the letter with the evidence. Payment does not change a grade.\n\nPermissions, install and update steps, network, secrets, agent instructions, obfuscation, licence, and maintainer activity.\n\nEight checks, every time. The letter is A, B, C, D or F. There is no E.\n\nThe grade is what we found on that date. A later change can make it stale.\n\nGrades are a hygiene check, not a security guarantee.\n\nMagenta is the logo. It is not a grade. Spark yellow is a small accent. It is not a grade either.\n\nThis grade is a hygiene screen, not proof of safety.\n\nFeatured listing £39 a month. Category card £149 a month. Homepage sponsor £499 a month. Newsletter issue £99. Items graded D or F cannot take a paid slot.\n\n1,974 A, 6,378 B, 2,481 C and 906 D. No F grades are published yet.", "url": "https://wpnews.pro/news/show-hn-plugvet-hygiene-grades-for-ai-agent-plugins-with-the-evidence-shown", "canonical_source": "https://plugvet.com/", "published_at": "2026-10-23 13:28:03+00:00", "updated_at": "2026-10-23 13:43:26.512330+00:00", "lang": "en", "topics": ["ai-agents", "ai-tools", "ai-safety", "agent-protocols", "developer-tools"], "entities": ["PlugVet", "Claude Code", "Cursor", "Codex", "MCP"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/show-hn-plugvet-hygiene-grades-for-ai-agent-plugins-with-the-evidence-shown", "markdown": "https://wpnews.pro/news/show-hn-plugvet-hygiene-grades-for-ai-agent-plugins-with-the-evidence-shown.md", "text": "https://wpnews.pro/news/show-hn-plugvet-hygiene-grades-for-ai-agent-plugins-with-the-evidence-shown.txt", "jsonld": "https://wpnews.pro/news/show-hn-plugvet-hygiene-grades-for-ai-agent-plugins-with-the-evidence-shown.jsonld"}}