agentmods.dev

ras-commander-mcp: Instructions file for Claude Code

CLAUDE.md

ras-commander-mcp CLAUDE.md is an instructions file for Claude Code from gpt-cmdr/ras-commander-mcp. It costs 1,686 tokens per session, scanned A, original, MIT.

A project instruction file for ras-commander-mcp, an MCP server that works with HEC-RAS water-flow engineering projects. It documents setup, commands, testing, and development rules.

In plain words
What is it for?
Use it when developing ras-commander-mcp, especially for running its Python tests, checking HEC-RAS test data, and validating server changes.
Why use it?
It gives a coding agent the project-specific information needed to install, run, modify, and test the server correctly.

Instructions file for Claude Code

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

This is gpt-cmdr/ras-commander-mcp's own configuration. It tells Claude Code how to work on ras-commander-mcp 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 ras-commander-mcp configures →

not rated 12repo 2mo ago A scan 1,686 tokens original MIT
View source ↗ gpt-cmdr/ras-commander-mcp
Reuse

Borrowing it

Nothing to install: this file belongs to gpt-cmdr/ras-commander-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.

Copy the file
curl -O https://raw.githubusercontent.com/gpt-cmdr/ras-commander-mcp/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/gpt-cmdr/ras-commander-mcp

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.

agentmods badge for ras-commander-mcp CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/gpt-cmdr/ras-commander-mcp/claude-md/github.svg)](https://agentmods.dev/instructions/gpt-cmdr/ras-commander-mcp/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/gpt-cmdr/ras-commander-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/gpt-cmdr/ras-commander-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.

agentmods 80×15 button for ras-commander-mcp CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/gpt-cmdr/ras-commander-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/gpt-cmdr/ras-commander-mcp/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,686 This file is loaded in full into every session.
When invoked 1,686 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 $0.01686 $0.01686
Opus 5 $0.00843 $0.00843
Sonnet 5 $0.00337 $0.00337
Haiku 4.5 $0.00169 $0.00169

Measured 9d ago against content hash 86cf1fb68df3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

ras-commander-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 9d 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 · 118 lines

How it starts

The opening of the file, as written. The whole thing — 118 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.

You prefer to read full file contents before editing

Commands

Build & Development

  • Install dependencies: uv pip install fastmcp ras-commander pandas or uv sync
  • Run MCP server: uv run python server.py
  • Alternative for testing: uvx --from . ras-commander-mcp

Testing & Validation

  • Comprehensive testing: uv run python tests/test_all_tools.py - Tests all MCP tools on both Muncie and BeaverLake projects
  • Single tool testing: uv run python tests/test_single_tool.py - Modify the script to test specific tools quickly
  • Direct server testing: uv run python tests/test_server.py - Basic functionality validation
  • Test data locations: testdata/Muncie/ and testdata/BeaverLake/ contain complete HEC-RAS projects
  • Test outputs: Check tests/outputs/ for markdown reports of tool functionality
  • Integration testing: Configure in Claude Desktop and test with actual HEC-RAS queries

Required Post-Update Testing

After making changes to the MCP server, run these tests in order:

  1. uv run python tests/test_server.py - Verify basic server functionality
  2. uv run python tests/test_all_tools.py - Comprehensive tool validation
  3. Review output files in tests/outputs/ directory
  4. Test Claude Desktop integration with sample queries

Project Structure

ras-commander-mcp-main/
├── server.py                    # Main MCP server implementation
├── pyproject.toml              # Package configuration with dependencies
├── requirements.txt            # Legacy pip dependencies (for compatibility)
├── claude_desktop_config.json  # Example Claude Desktop configuration
├── tests/                      # Testing suite
│   ├── __init__.py
│   ├── test_server.py         # Basic server functionality tests
│   ├── test_all_tools.py      # Comprehensive tool testing suite
│   ├── test_single_tool.py    # Single tool testing utility
│   └── outputs/               # Test output markdown files
├── testdata/
│   ├── Muncie/                # Complete HEC-RAS project for testing
│   └── BeaverLake/            # Additional test project
├── ras-commander reference files/ # API documentation and examples
└── NonWorking_Tools.md         # Documentation of removed/broken tools

Read the full file on GitHub · 118 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. 9d ago First seen · 118 lines · 1,686 tokens per session scan A 86cf1fb68df3

Subscribe to this mod's changes

ras-commander-mcp CLAUDE.md is an instructions file published in the GitHub repository gpt-cmdr/ras-commander-mcp (12 stars, last pushed 2mo ago), licensed MIT. It adds 1,686 tokens to every session, about $0.0084 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.

Backend and APIsTesting
Related

Other instructions, from other repositories

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,296 tokens

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,153 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).

microsoft/vscode · 5,001 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,469 tokens

deepseek-harness AGENTS.md

AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.

deepseek-ai/deepseek-harness · 3,737 tokens