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snowflake-mcp-server: Instructions file for Claude Code

CLAUDE.md

snowflake-mcp-server CLAUDE.md is an instructions file for Claude Code from dynamike/snowflake-mcp-server. It costs 293 tokens per session, scanned A, original, MIT.

A project instruction file for a Python server that connects to Snowflake, a cloud database used for storing and querying data. It documents setup, running the server, tests, linting, formatting, type checking, and coding rules.

In plain words
What is it for?
Use it as a reference when installing dependencies, starting the server, running pytest, checking coverage, using Ruff or mypy, and writing safe Snowflake queries.
Why use it?
It gives coding agents consistent project-specific directions for building, testing, and modifying the server.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md.

This is dynamike/snowflake-mcp-server's own configuration. It tells Claude Code how to work on snowflake-mcp-server 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 snowflake-mcp-server configures →

not rated 14repo 1y ago A scan 293 tokens original MIT
View source ↗ dynamike/snowflake-mcp-server
Reuse

Borrowing it

Nothing to install: this file belongs to dynamike/snowflake-mcp-server. 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/dynamike/snowflake-mcp-server/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/dynamike/snowflake-mcp-server

Made for: Claude Code.

Wrote 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.

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README.md
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Your own site
<a href="https://agentmods.dev/instructions/dynamike/snowflake-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/dynamike/snowflake-mcp-server/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.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/dynamike/snowflake-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/dynamike/snowflake-mcp-server/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 293 This file is loaded in full into every session.
When invoked 293 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 $0.00293 $0.00293
Opus 5.5 $0.00117 $0.00117
Sonnet 5.5 $0.00059 $0.00059
Haiku 4.5 $0.00029 $0.00029

Measured 2mo ago against content hash 2b563c8789fd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

snowflake-mcp-server 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.

CLAUDE.md · 28 lines

What it actually says

CLAUDE.md - MCP Server Snowflake (Python)

Build & Run Commands

  • Setup: uv pip install -e . or uv pip install -r requirements.txt
  • Start server: python -m mcp_server_snowflake.main
  • Development mode: uvicorn mcp_server_snowflake.main:app --reload

Test Commands

  • Run all tests: pytest
  • Run single test: pytest tests/test_file.py::test_function
  • Test coverage: pytest --cov=mcp_server_snowflake

Lint & Format

  • Lint: ruff check .
  • Format code: ruff format .
  • Type check: mypy mcp_server_snowflake/

Code Style Guidelines

  • Use Python 3.10+ type annotations everywhere
  • Format with Ruff, line length 88 characters
  • Organize imports with Ruff (stdlib, third-party, first-party)
  • Use async/await for Snowflake queries via snowflake-connector-python
  • Prefer dataclasses or Pydantic models for structured data
  • Follow PEP8 naming: snake_case for functions/variables, PascalCase for classes
  • Document public functions with docstrings (Google style preferred)
  • Handle database exceptions with proper logging and client-safe messages
  • Parameterize all SQL queries to prevent injection vulnerabilities
  • Use environment variables for configuration with pydantic-settings
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. 2mo ago First seen · 28 lines · 293 tokens per session scan A 2b563c8789fd

Subscribe to this mod's changes

snowflake-mcp-server CLAUDE.md is an instructions file published in the GitHub repository dynamike/snowflake-mcp-server (14 stars, last pushed 1y ago), licensed MIT. It adds 293 tokens to every session, about $0.0012 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.

modelcontextprotocolsnowflake
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