Borrowing it
Nothing to install: this file belongs to VantaInc/vanta-mcp-plugin. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/VantaInc/vanta-mcp-plugin/main/AGENTS.mdgit clone --depth 1 https://github.com/VantaInc/vanta-mcp-pluginWrote 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/instructions/vantainc/vanta-mcp-plugin/agents-md)<a href="https://agentmods.dev/instructions/vantainc/vanta-mcp-plugin/agents-md"><img src="https://agentmods.dev/badge/instructions/vantainc/vanta-mcp-plugin/agents-md/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/instructions/vantainc/vanta-mcp-plugin/agents-md"><img src="https://agentmods.dev/badge/instructions/vantainc/vanta-mcp-plugin/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00294 | $0.00294 |
| Opus 5.5 | $0.00118 | $0.00118 |
| Sonnet 5.5 | $0.00059 | $0.00059 |
| Haiku 4.5 | $0.00029 | $0.00029 |
Grade A, and why
vanta-mcp-plugin AGENTS.md 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 2mo 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
Vanta Plugin
This repo contains code for the Vanta plugin for Claude Code.
For general documentation on Claude Code plugins see the docs
Testing
It's important to verify changes to the plugin spec.
Local plugin load (development)
Load the plugin directly from disk without installing:
claude --plugin-dir /path/to/vanta-mcp-plugin
Then verify:
/help— skills should appear as/vanta:fix-test,/vanta:list-tests,/vanta:test-remediation/mcp— MCP serversvanta-us,vanta-eu,vanta-ausshould be listed
Use /reload-plugins to pick up changes without restarting the session.
Marketplace install (full install path)
This tests the real installation flow: clone, copy to cache, load from cache.
-
Add the marketplace from a branch:
/plugin marketplace add VantaInc/vanta-mcp-plugin@<branch-name> -
Install the plugin:
/plugin install vanta@VantaInc-vanta-mcp-plugin -
Verify skills and MCP servers load as described above.
This exercises the full path including marketplace.json resolution, plugin copying to ~/.claude/plugins/cache/, and component discovery from the cached copy.
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.
- 2mo ago First seen · 42 lines · 294 tokens per session scan A e067e988b2e5
vanta-mcp-plugin AGENTS.md is an instructions file published in the GitHub repository VantaInc/vanta-mcp-plugin (5 stars, last pushed 6mo ago), licensed MIT. It adds 294 tokens to every session, about $0.0012 per session on Opus 5.5. 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.
vanta-mcp-plugin AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| vanta-mcp-plugin AGENTS.mdVantaInc/vanta-mcp-plugin | Instructions file | 5 | 6mo ago | MIT | A | 294 | Claude Code, Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,649 | GitHub Copilot |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| vscode ai-customization.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 1,907 | GitHub Copilot |