Borrowing it
Nothing to install: this file belongs to leehanchung/bing-search-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/leehanchung/bing-search-mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/leehanchung/bing-search-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/leehanchung/bing-search-mcp/claude-md)<a href="https://agentmods.dev/instructions/leehanchung/bing-search-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/leehanchung/bing-search-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/leehanchung/bing-search-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/leehanchung/bing-search-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 | $0.01294 | $0.01294 |
| Opus 5 | $0.00647 | $0.00647 |
| Sonnet 5 | $0.00259 | $0.00259 |
| Haiku 4.5 | $0.00129 | $0.00129 |
Grade A, and why
bing-search-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 11d 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 — 161 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Development Guidelines
This document contains critical information about working with this codebase. Follow these guidelines precisely.
Core Development Rules
-
Package Management
- ONLY use uv, NEVER pip
- Installation:
uv add package - Running tools:
uv run tool - Upgrading:
uv add --dev package --upgrade-package package - FORBIDDEN:
uv pip install,@latestsyntax
-
Code Quality
- Type hints required for all code
- Public APIs must have docstrings
- Functions must be focused and small
- Follow existing patterns exactly
- Line length: 88 chars maximum
-
Testing Requirements
- Framework:
uv run pytest - Async testing: use anyio, not asyncio
- Coverage: test edge cases and errors
- New features require tests
- Bug fixes require regression tests
- Framework:
-
For commits fixing bugs or adding features based on user reports add:
git commit --trailer "Reported-by:<name>"Where
<name>is the name of the user. -
For commits related to a Github issue, add
git commit --trailer "Github-Issue:#<number>" -
NEVER ever mention a
co-authored-byor similar aspects. In particular, never mention the tool used to create the commit message or PR.
Pull Requests
-
Create a detailed message of what changed. Focus on the high level description of the problem it tries to solve, and how it is solved. Don't go into the specifics of the code unless it adds clarity.
-
Always add
leehanchungas reviewer. -
NEVER ever mention a
co-authored-byor similar aspects. In particular, never mention the tool used to create the commit message or PR.
Python Tools
Code Formatting
- Ruff
- Format:
uv run ruff format . - Check:
uv run ruff check . - Fix:
uv run ruff check . --fix - Critical issues:
- Line length (88 chars)
- Import sorting (I001)
- Unused imports
- Line wrapping:
- Strings: use parentheses
- Function calls: multi-line with proper indent
- Imports: split into multiple lines
- Format:
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.
- 11d ago First seen · 161 lines · 1,294 tokens per session scan A 20861abb879e
bing-search-mcp CLAUDE.md is an instructions file published in the GitHub repository leehanchung/bing-search-mcp (79 stars, last pushed 1y ago), licensed MIT. It adds 1,294 tokens to every session, about $0.0065 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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