mcp-everything-search: Instructions file for Claude Code

CLAUDE.md

mcp-everything-search CLAUDE.md is an instructions file for Claude Code from mamertofabian/mcp-everything-search. It costs 2,443 tokens per session, scanned A, original, MIT.

Project instructions for developing and testing an MCP server that searches files across Windows, macOS, and Linux. MCP, or Model Context Protocol, is a way for an AI agent to call tools provided by another program.

In plain words
What is it for?
Use them to run the file-search server, inspect it with MCP Inspector, type-check and lint the code, format it, run tests, or build the package.
Why use it?
They give an agent the repository context and the commands needed to run, check, test, and build the server. This reduces guesswork when maintaining the project.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions Claude Code.

This is mamertofabian/mcp-everything-search's own configuration. It tells Claude Code how to work on mcp-everything-search itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything mcp-everything-search configures →

Reuse

Borrowing it

Nothing to install: this file belongs to mamertofabian/mcp-everything-search. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/mamertofabian/mcp-everything-search/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/mamertofabian/mcp-everything-search

Made for: Claude Code.

Wrote this? Show the measurements

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Per session 2,443 This file is loaded in full into every session.
When invoked 2,443 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.02443 $0.02443
Opus 5.5 $0.00977 $0.00977
Sonnet 5.5 $0.00489 $0.00489
Haiku 4.5 $0.00244 $0.00244

Measured 11d ago against content hash 429ac0b9a16a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-everything-search 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.

CLAUDE.md · 162 lines

How it starts

The opening of the file, as written. The whole thing — 162 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 cross-platform file search capabilities:

  • Windows: Uses the Everything SDK for fast indexed search
  • macOS: Uses mdfind (Spotlight) for native search
  • Linux: Uses locate/plocate for filesystem search

The server exposes a single search tool with platform-specific parameter schemas and syntax support.

Development Commands

Testing and Running

# Run the server with MCP inspector for testing
npx @modelcontextprotocol/inspector uv run mcp-server-everything-search

# Run directly with uv
uv run mcp-server-everything-search

# Run as Python module (after pip install)
python -m mcp_server_everything_search

Code Quality

# Type checking
uv run pyright

# Linting
uv run ruff check

# Formatting
uv run ruff format

# Run tests
uv run pytest

Building

# Build the package
uv build

Architecture

Core Components

  1. server.py - Main MCP server implementation (mcp 2.x lowlevel Server)

    • build_search_tool(system): the search tool with platform docs and schema
    • parse_search_arguments(arguments): Pydantic validation boundary (mcp 2.x does not validate tool arguments)
    • format_results(results): renders SearchResult objects as text
    • create_server(provider, system): wires the on_list_tools, on_call_tool and empty resource/prompt handlers; search failures return CallToolResult(is_error=True), unknown tools raise MCPError(-32602)
    • serve(): composition root that runs create_server(SearchProvider.get_provider(), platform) over stdio
  2. search_interface.py - Abstract search provider interface

    • SearchProvider: Abstract base class defining the search contract
    • WindowsSearchProvider: Everything SDK wrapper
    • MacSearchProvider: mdfind command wrapper
    • LinuxSearchProvider: locate/plocate command wrapper
    • SearchResult: Universal dataclass for all platforms

Read the full file on GitHub · 162 lines

Changes

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.

  1. 11d ago Changed · +38 lines · +1,462 tokens per session 429ac0b9a16a
  2. 2mo ago First seen · 124 lines · 981 tokens per session scan A e6143ab9583e

Subscribe to this mod's changes

mcp-everything-search CLAUDE.md is an instructions file published in the GitHub repository mamertofabian/mcp-everything-search (367 stars, last pushed 12d ago), licensed MIT. It adds 2,443 tokens to every session, about $0.0098 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 2026-08-30.

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