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 instructions/sandraschi/virtualization-mcp/agents-mdgit clone --depth 1 https://github.com/sandraschi/virtualization-mcpWhat 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 | $0.00280 | $0.00280 |
| Opus 5 | $0.00140 | $0.00140 |
| Sonnet 5 | $0.00056 | $0.00056 |
| Haiku 4.5 | $0.00028 | $0.00028 |
Grade A, and why
virtualization-mcp 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 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- virtualization-mcp CLAUDE.md — 86% identical, 11 lines differ
What it actually says
virtualization-mcp — Agent Guide
Overview
VirtualBox and Hyper-V VM management, Windows Sandbox bringup, snapshots, and fleet install testing via FastMCP 3.2.
Entry Points
uv run virtualization-mcp→virtualization_mcp.all_tools_server:main
Standards
- FastMCP 3.2+ portmanteau tool pattern — tools use
operationenum param - Responses: structured dicts with
success,message, domain-specific fields - Dual transport: stdio (Claude Desktop) + HTTP (
MCP_TRANSPORT=http) - See mcp-central-docs for fleet-wide coding standards
Key Files
- README.md — user overview
- INSTALL.md — Options A–D
- CLAUDE.md — Claude Code context
scripts/Launch-ConsumerSandbox.ps1— nearly naked fleet install testsscripts/Launch-DevInfraSandbox.ps1— dev stack sandbox
Quick Ref
uv run pytest tests/ -q
just serve
just dev
Install docs: follow mcp-central-docs/standards/AGENT_INSTALL_REFERENCE.md
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 · 35 lines · 280 tokens per session scan A 91a17bda7d01
virtualization-mcp AGENTS.md is an instructions file published in the GitHub repository sandraschi/virtualization-mcp (14 stars, last pushed 4d ago), licensed MIT. It adds 280 tokens to every session, about $0.0014 per session on Opus 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.
Other instructions, from other repositories
microsandbox AGENTS.md
AGENTS.md instructions for superradcompany/microsandbox, covering agents.md, scope, project map, design principles and backward compatibility review.
worldlabs-mcp AGENTS.md
Instructions for sandraschi/worldlabs-mcp, covering worldlabs-mcp — agent guide, entry points, quick ref, standards and key files.
blender-mcp AGENTS.md
Instructions for sandraschi/blender-mcp, covering blender-mcp agent context and quick ref.
blender-mcp CLAUDE.md
Instructions for sandraschi/blender-mcp, covering blender-mcp — ai-powered blender automation, commands, architecture and code style & standards.
worldlabs-mcp CLAUDE.md
Instructions for sandraschi/worldlabs-mcp, covering worldlabs-mcp — claude code guide, entry points, standards and key files.
blender-mcp copilot-instructions.md
Instructions for sandraschi/blender-mcp: You have access to a Blender 3D automation server. You can control Blender scenes, objects, materials, rendering, and physics through MCP tools.