Borrowing it
Nothing to install: this file belongs to isiahw1/mcp-server-bing-webmaster. 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/isiahw1/mcp-server-bing-webmaster/main/CLAUDE.mdgit clone --depth 1 https://github.com/isiahw1/mcp-server-bing-webmasterWrote 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/isiahw1/mcp-server-bing-webmaster/claude-md)<a href="https://agentmods.dev/instructions/isiahw1/mcp-server-bing-webmaster/claude-md"><img src="https://agentmods.dev/badge/instructions/isiahw1/mcp-server-bing-webmaster/claude-md.svg" alt="Measured on agentmods" 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 | $0.02320 | $0.02320 |
| Opus 5 | $0.01160 | $0.01160 |
| Sonnet 5 | $0.00464 | $0.00464 |
| Haiku 4.5 | $0.00232 | $0.00232 |
Grade A, and why
mcp-server-bing-webmaster 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 8d 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 — 293 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 an MCP (Model Context Protocol) server that provides AI assistants with access to Bing Webmaster Tools API. It's a hybrid npm/Python package distributed via npm but implemented in Python, using a JavaScript wrapper (run.js) to spawn the Python process.
Key Architecture Pattern: The server acts as a bridge between MCP clients (Claude, Cursor, etc.) and Bing's REST API, using FastMCP to expose 60 Bing Webmaster Tools functions as MCP tools.
Development Commands
Setup & Installation
# Install dependencies (uses uv package manager)
make install
# OR
uv sync
# Install in editable mode for development
uv pip install -e .
Code Quality
# Run type checking (mypy --strict) and linting (ruff)
make lint
# Format code with ruff
make format
Testing
# Run all tests with pytest (requires BING_WEBMASTER_API_KEY)
make test
# Run tests directly with uv
uv run pytest mcp_server_bwt --doctest-modules
Running the Server
# Start the server directly (for testing)
make start
# OR
uv run mcp_server_bwt/main.py
# OR
python -m mcp_server_bwt
# Run with MCP Inspector (for debugging MCP protocol)
make mcp_inspector
Building & Distribution
# Build Python wheel
make build
# Build and test npm package
npm run build
npm run validate
# View what will be published
npm run view-package
Versioning
# Sync version between Python (version.py) and npm (package.json)
npm run sync-version
# Version is stored in: mcp_server_bwt/version.py
Architecture
Dual Entry Points
1. npm Distribution (run.js):
- Cross-platform JavaScript wrapper that spawns Python process
- Checks for virtual environment Python first, falls back to system Python
- Handles process lifecycle and signal forwarding
- This is what users execute:
npx @isiahw1/mcp-server-bing-webmaster
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.
- 8d ago First seen · 293 lines · 2,320 tokens per session scan A 744499ed2fc8
mcp-server-bing-webmaster CLAUDE.md is an instructions file published in the GitHub repository isiahw1/mcp-server-bing-webmaster (24 stars, last pushed 7mo ago), licensed MIT. It adds 2,320 tokens to every session, about $0.0116 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.
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