Borrowing it
Nothing to install: this file belongs to deploymenttheory/windows-mcp-server. 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/deploymenttheory/windows-mcp-server/main/CLAUDE.mdgit clone --depth 1 https://github.com/deploymenttheory/windows-mcp-serverWrote 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/deploymenttheory/windows-mcp-server/claude-md)<a href="https://agentmods.dev/instructions/deploymenttheory/windows-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/deploymenttheory/windows-mcp-server/claude-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/deploymenttheory/windows-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/deploymenttheory/windows-mcp-server/claude-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 | $0.08429 | $0.08429 |
| Opus 5.5 | $0.03372 | $0.03372 |
| Sonnet 5.5 | $0.01686 | $0.01686 |
| Haiku 4.5 | $0.00843 | $0.00843 |
Grade E, and why
windows-mcp-server CLAUDE.md scanned grade E with 2 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 21d 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.
Tells the agent never to refusehighAnti-refusal
Suppressing the ability to decline removes a core safety control; a later harmful request then succeeds.
- **The default must never refuse.** `policy_default.json` applies whenever no Cloud metadata endpointhighServer-side request forgery
One request to 169.254.169.254 can return temporary IAM credentials.
RFC1918 or `169.254.169.254` is the bypass the allowlist exists to prevent, and How it starts
The opening of the file, as written. The whole thing — 587 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
Guidance for AI coding agents working in this repository. These are the conventions that are load-bearing but not obvious from any single file — read this before adding a tool, touching the desktop engine, or changing the security subsystem.
What this is
An MCP server (stdio transport only) bridging AI agents to the Windows desktop.
A Go port of the Python Windows-MCP,
built on deploymenttheory/go-bindings-win32, go-bindings-wmi, the shared
deploymenttheory/mcp-server-core (the platform-agnostic half: inventory,
toolkit, surface, runtime, conformance host, journeys), the
deploymenttheory/agentweave-harness guardrails, and the official
modelcontextprotocol/go-sdk. Its sibling, macos-mcp-server, is the same
design on the other platform and consumes the same core. Perception is the UI Automation accessibility tree
— there is no CV model.
| Package | Role |
|---|---|
cmd/windows-mcp-server |
cobra CLI (stdio/check/personas), viper WINDOWS_MCP_* env binding |
internal/winmcp |
RunStdio startup orchestration + the OS adapters (systemProbe, health probe, TPM attestation, credentials and the DACL check, the go-winio harness dial) |
internal/desktop |
the Win32/UIA/WMI engine — one COM STA thread |
pkg/windows |
tool definitions (one file per topic) + toolset/persona metadata, and the dependencies.go shim over the shared toolkit |
internal/psdata |
PowerShell data binding (PSScript), the one defence against a value becoming source text |
mcp-server-core (imported) |
inventory engine, tool toolkit, MCP surface, guardrail runtime, journeys, run records, schema loader, conformance host + fixtures, conformance-results reporting |
agentweave-harness/guardrails/* (imported) |
the security stack, split by lifecycle layer (see below) |
policy/examples |
starting-point policy documents (validated by the test suite) |
schema/ |
vendored MCP protocol schemas + versions.json |
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.
- 21d ago Changed · -20 lines · -275 tokens per session ac0aa80f8b0d
- 2mo ago First seen · 607 lines · 8,704 tokens per session scan E 13ba47dddb50
windows-mcp-server CLAUDE.md is an instructions file published in the GitHub repository deploymenttheory/windows-mcp-server (12 stars, last pushed 6d ago), licensed MIT. It adds 8,429 tokens to every session, about $0.0337 per session on Opus 5.5. A static security scan graded it E with 2 findings (tells the agent never to refuse, cloud metadata endpoint). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.