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HuVelasco

RSG CFS MCP Server

by HuVelasco
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# cfs-rsg-mcp

MCP server connecting Claude (and any MCP client) to RSG CFS 15 — AI-driven cold-formed steel stud, track, and wall design.

By Hugo Velasco · dualitum.com

License: MIT Python MCP Platform

What It Does

cfs-rsg-mcp lets Claude drive RSG CFS 15 for cold-formed steel design — stud selection, wall assembly, stacked walls, and section property lookups — all from natural language.

Example prompt: "Find the lightest 600S stud that passes AISI S100 for a 12-foot wall at 16" o.c. with 500 lb/ft axial and 10 psf lateral."

Related MCP server: COBie MCP

Tools

🔗 Connection

Tool

Description

connect_cfs

Connect to running RSG CFS 15 instance

📐 Section Library

Tool

Description

list_standard_profiles

All standard CFS profiles (studs, tracks, angles, channels)

list_custom_profiles

User-defined profiles in the current database

get_section_properties

Full properties for a section (Ix, Sx, weight, gauge, etc.)

export_section_for_analysis

Export section data for use in other calculations

✅ Design Checks

Tool

Description

check_stud

AISI S100 check for a single stud (axial + bending + combined)

check_members_batch

Batch check multiple studs in one call

design_wall

Full wall assembly design — find passing studs for a wall spec

design_stacked_wall

Design stacked wall with load transfer between stories

🔍 Optimization

Tool

Description

parse_wall_specification

Parse natural-language wall spec into structured parameters

find_wall_substitutions

Find lighter or cheaper alternatives to a current wall design

find_equivalent_profiles

Find profiles with equivalent structural properties

Quickstart

Prerequisites

  • RSG CFS 15 installed

  • Python 3.10+

Install

git clone https://github.com/HuVelasco/cfs-rsg-mcp.git
cd cfs-rsg-mcp
pip install -r requirements.txt

Claude Desktop config

{
  "mcpServers": {
    "cfs-rsg": {
      "command": "python",
      "args": ["C:/path/to/cfs-rsg-mcp/server.py"]
    }
  }
}

Example Workflow

User: Design a 10-ft exterior wall, 16" o.c., 600 lb/ft axial, 12 psf lateral, deflection L/360

Claude: parse_wall_specification → design_wall → 600S162-54 passes (DCR=0.87)
        find_wall_substitutions  → 600S162-43 fails (DCR=1.12), keep -54

License

MIT © 2026 Hugo Velasco. See LICENSE.

All structural outputs must be reviewed by a licensed professional engineer.

Part of the Hugo Velasco AEC automation suite · dualitum.com

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Maintenance

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