net

net is a cursor rule for coding agents from sfc-gh-cconner/support-rules-mcp. It costs 660 tokens per session, scanned A, original, Apache-2.0.

A guide for connecting C# and other .NET applications to Snowflake, a cloud data platform. It covers sessions, login methods, SQL commands, query results, asynchronous code, and file transfers.

In plain words
What is it for?
Use it to investigate authentication, key-pair login, session handling, query execution, result reading, async operations, and PUT or GET file transfers.
Why use it?
It helps developers find the right connector code and patterns when an application must log in to Snowflake, run SQL, or move files.

Cursor rule

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add rules/sfc-gh-cconner/support-rules-mcp/net
Clone the repo
git clone --depth 1 https://github.com/sfc-gh-cconner/support-rules-mcp

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.

agentmods badge for net

README.md
[![agentmods](https://agentmods.dev/badge/rules/sfc-gh-cconner/support-rules-mcp/net.svg)](https://agentmods.dev/rules/sfc-gh-cconner/support-rules-mcp/net)
Your own site
<a href="https://agentmods.dev/rules/sfc-gh-cconner/support-rules-mcp/net"><img src="https://agentmods.dev/badge/rules/sfc-gh-cconner/support-rules-mcp/net.svg" alt="Measured on agentmods" height="20"></a>
Per session 660 This file is loaded in full into every session.
When invoked 660 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00660 $0.00660
Opus 5 $0.00330 $0.00330
Sonnet 5 $0.00132 $0.00132
Haiku 4.5 $0.00066 $0.00066

Measured 3d ago against content hash e04e7c7eb175, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

net 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 3d 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.

rules/connectors/net.mdc · 107 lines

How it starts

The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Snowflake .NET Connector Investigation Guide

PURPOSE: .NET connector patterns for C# and .NET applications connecting to Snowflake.

Access Method: GitHub MCP API tools
Repository: snowflakedb/snowflake-connector-net

🔍 Quick Investigation Patterns

Session & Authentication

# Session management
mcp_github_search_code(
    query='SFSession OR SessionPool repo:snowflakedb/snowflake-connector-net'
)

# Authentication
mcp_github_search_code(
    query='Authenticator OR Login repo:snowflakedb/snowflake-connector-net'
)

# Key pair auth
mcp_github_search_code(
    query='PrivateKey OR JWT repo:snowflakedb/snowflake-connector-net'
)

Command Execution

# Statement execution
mcp_github_search_code(
    query='SnowflakeDbCommand OR ExecuteQuery repo:snowflakedb/snowflake-connector-net'
)

# Result handling
mcp_github_search_code(
    query='SnowflakeDbDataReader OR ResultSet repo:snowflakedb/snowflake-connector-net'
)

# Async operations
mcp_github_search_code(
    query='async OR await OR Task repo:snowflakedb/snowflake-connector-net'
)

File Transfer

# PUT/GET operations
mcp_github_search_code(
    query='path:FileTransfer repo:snowflakedb/snowflake-connector-net'
)

# Staging operations
mcp_github_search_code(
    query='UploadFile OR DownloadFile repo:snowflakedb/snowflake-connector-net'
)

🎯 Key Components

Core Classes

# Connection class
mcp_github_get_file_contents(
    owner="snowflakedb", repo="snowflake-connector-net",
    path="Snowflake.Data/Core/SFConnection.cs"
)

# Session implementation
mcp_github_get_file_contents(
    owner="snowflakedb", repo="snowflake-connector-net",
    path="Snowflake.Data/Core/SFSession.cs"
)

# REST client
mcp_github_get_file_contents(
    owner="snowflakedb", repo="snowflake-connector-net",
    path="Snowflake.Data/Core/RestRequester.cs"
)

🗺️ Directory Structure

Snowflake.Data/
├── Core/           # Session, login, network
├── Client/         # Commands, statements
├── FileTransfer/   # PUT/GET operations
├── Logger/         # Logging utilities
└── Configuration/  # Client config

Read the full file on GitHub · 107 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. 3d ago First seen · 107 lines · 660 tokens per session scan A e04e7c7eb175

Subscribe to this mod's changes

net is a cursor rule published in the GitHub repository sfc-gh-cconner/support-rules-mcp (0 stars, last pushed 10mo ago), licensed Apache-2.0. It adds 660 tokens to every session, about $0.0033 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 2026-08-31.