Borrowing it
Nothing to install: this file belongs to back1ply/Excel-Power-Pivot-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/back1ply/Excel-Power-Pivot-MCP/main/CLAUDE.mdgit clone --depth 1 https://github.com/back1ply/Excel-Power-Pivot-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/back1ply/excel-power-pivot-mcp/claude-md)<a href="https://agentmods.dev/instructions/back1ply/excel-power-pivot-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/back1ply/excel-power-pivot-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/back1ply/excel-power-pivot-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/back1ply/excel-power-pivot-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 | $0.02650 | $0.02650 |
| Opus 5.5 | $0.01060 | $0.01060 |
| Sonnet 5.5 | $0.00530 | $0.00530 |
| Haiku 4.5 | $0.00265 | $0.00265 |
Grade A, and why
Excel-Power-Pivot-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 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.
How it starts
The opening of the file, as written. The whole thing — 258 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
Excel Power Pivot MCP Server - A Model Context Protocol (MCP) server that enables AI assistants to interact with Excel Power Pivot data models. Written in C# .NET 8, this application bridges the gap between AI assistants and Excel Power Pivot through COM interop, enabling DAX query execution, measure management, relationship creation, and model exploration.
Platform: Windows-only (.NET 8 with Windows Forms for STA threading)
Target: Single-file executable (ExcelPowerPivotMcp.exe)
Build and Test Commands
Build
# Debug build
dotnet build
# Release build (single-file executable)
dotnet publish -c Release
# Output location: bin/Release/net8.0-windows/win-x64/publish/ExcelPowerPivotMcp.exe
Test
# Run all tests
dotnet test
# Run tests with verbose output
dotnet test --logger "console;verbosity=detailed"
# Run specific test
dotnet test --filter "FullyQualifiedName~DaxHelpersTests"
# Run tests with code coverage
./run-tests-with-coverage.ps1 # Windows
./run-tests-with-coverage.sh # Linux/Mac
# Manual coverage command
dotnet test /p:CollectCoverage=true /p:CoverletOutputFormat=opencover /p:CoverletOutput=./TestResults/coverage
Development Testing
# Test the MCP server manually (requires open Excel workbook)
./bin/Release/net8.0-windows/win-x64/publish/ExcelPowerPivotMcp.exe
# Use test_driver.py to simulate MCP client interactions
python test_driver.py
Architecture
Layered Structure
┌─────────────────────────────────────┐
│ MCP Tools (Presentation Layer) │ - Tools/, Prompts/, McpResourceProvider.cs
├─────────────────────────────────────┤
│ Core Services (Business Logic) │ - Core/Services/
├─────────────────────────────────────┤
│ Infrastructure (External Systems) │ - Infrastructure/Services/
├─────────────────────────────────────┤
│ PowerPivot (Connection Management) │ - PowerPivot/PowerPivotConnection.*.cs
├─────────────────────────────────────┤
│ Common (DTOs, Utilities) │ - Common/
└─────────────────────────────────────┘
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 · 258 lines · 2,650 tokens per session scan A dcbe6a87b0e6
Excel-Power-Pivot-MCP CLAUDE.md is an instructions file published in the GitHub repository back1ply/Excel-Power-Pivot-MCP (4 stars, last pushed 6mo ago), licensed MIT. It adds 2,650 tokens to every session, about $0.0106 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.
Excel-Power-Pivot-MCP CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| Excel-Power-Pivot-MCP CLAUDE.mdback1ply/Excel-Power-Pivot-MCP | Instructions file | 4 | 6mo ago | MIT | A | 2,650 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |