Borrowing it
Nothing to install: this file belongs to jcucci/dotnet-sherlock-mcp. 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/jcucci/dotnet-sherlock-mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/jcucci/dotnet-sherlock-mcpWrote 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/jcucci/dotnet-sherlock-mcp/claude-md)<a href="https://agentmods.dev/instructions/jcucci/dotnet-sherlock-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/jcucci/dotnet-sherlock-mcp/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/jcucci/dotnet-sherlock-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/jcucci/dotnet-sherlock-mcp/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 | $0.05544 | $0.05544 |
| Opus 5.5 | $0.02218 | $0.02218 |
| Sonnet 5.5 | $0.01109 | $0.01109 |
| Haiku 4.5 | $0.00554 | $0.00554 |
Grade A, and why
dotnet-sherlock-mcp CLAUDE.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 22d 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.
How it starts
The opening of the file, as written. The whole thing — 155 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
Project Overview
This is a comprehensive .NET MCP (Model Context Protocol) server called "Sherlock MCP" that provides deep introspection capabilities for .NET assemblies. It uses advanced reflection techniques to give LLMs precise knowledge about .NET types, members, attributes, and documentation. The project includes a production-ready server, extensive runtime libraries, comprehensive testing, and performance optimizations.
Project Structure
src/Sherlock.MCP.slnx- Visual Studio solution file (XML format)src/server/Sherlock.MCP.Server.csproj- Main MCP server applicationsrc/runtime/Sherlock.MCP.Runtime.csproj- Core reflection and assembly discovery servicessrc/unit-tests/Sherlock.MCP.Tests.csproj- Unit tests for all functionalitysrc/benchmarks/Sherlock.MCP.Benchmarks.csproj- BenchmarkDotNet benchmarks (run manually or via the on-demandBenchmarksworkflow)
Development Commands
dotnet build- Build the entire solutiondotnet run --project src/server- Run the MCP server with stdio transportdotnet test- Run all unit testsdotnet restore- Restore NuGet packages for all projectsdotnet run -c Release --project src/benchmarks -f net10.0 -- --filter '*Search*'- Run BenchmarkDotNet benchmarks (seesrc/benchmarks/README.md)
Golden-file tests
src/unit-tests/Golden/ToolResponseGoldenTests.cs snapshots every tool's response (summary/full projections, pagination pages, error payloads) with Verify against Sherlock.Golden.dll, a small assembly GoldenFixture emits per run; snapshots live in src/unit-tests/Golden/Snapshots/*.verified.json. Machine- and runtime-specific values are scrubbed to placeholders ({Fixture}, {Token}, {Handle}, {Chars}, {FrameworkAssemblyVersion}, …) so one snapshot holds across net8.0/net9.0/net10.0. When a shape changes intentionally, review the *.received.json diff and rename it over the matching .verified.json. A new tool fails EveryToolHasAGoldenCase until it gets a case, and a tool with projection needs both summary and full cases.
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.
- 22d ago Changed · +208 tokens per session 9e1f03331276
- 24d ago Changed · +8 lines · +816 tokens per session fe33d4cc5cbd
- 25d ago Changed · +2 lines · +981 tokens per session 4b0b6f7a1477
- 26d ago Changed · +3 lines · +527 tokens per session 46836b99dfe3
- 27d ago Changed · +3 lines · +775 tokens per session e4973ad95417
- 1mo ago First seen · 139 lines · 2,237 tokens per session scan A 06c67f9b01ed
dotnet-sherlock-mcp CLAUDE.md is an instructions file published in the GitHub repository jcucci/dotnet-sherlock-mcp (9 stars, last pushed 22d ago), licensed MIT. It adds 5,544 tokens to every session, about $0.0222 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 2026-08-31.
Other instructions, from other repositories
graftcode graftcode-dotnet.instructions.md
Instructions for grft-dev/graftcode, covering graftcode — .net backend services, when this applies (always), authoritative docs (source of truth), golden rules and service = .net class library.
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).