A set of instructions for using FreeCAD, a computer-aided design program, through an MCP server. It covers basic 3D shapes, drawings, pre-made parts, and finite element analysis, which tests how structures respond to forces.

Use it to create CAD objects, position and style them, build meshes, apply constraints, run the CalculiX solver, and inspect stress or displacement results.

It provides FreeCAD documentation and examples in one place when building or analysing models.

How GadatheGod/freecad-mcp-pro configures OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to GadatheGod/freecad-mcp-pro. 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/GadatheGod/freecad-mcp-pro/main/.opencode/skills/freecad/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/GadatheGod/freecad-mcp-pro

Made for: OpenCode.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/gadathegod/freecad-mcp-pro/freecad/github.svg)](https://agentmods.dev/skills/gadathegod/freecad-mcp-pro/freecad)

Your own site

<a href="https://agentmods.dev/skills/gadathegod/freecad-mcp-pro/freecad"><img src="https://agentmods.dev/badge/skills/gadathegod/freecad-mcp-pro/freecad/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/gadathegod/freecad-mcp-pro/freecad"><img src="https://agentmods.dev/badge/skills/gadathegod/freecad-mcp-pro/freecad.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 509 The whole file, excluding the scripts and references it only reads on demand.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.00509
Opus 5	$0.00000	$0.00254
Sonnet 5	$0.00000	$0.00102
Haiku 4.5	$0.00000	$0.00051

Measured 11d ago against content hash e56da88ba740, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

freecad 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.

.opencode/skills/freecad/SKILL.md · 60 lines

What it actually says

FreeCAD MCP Skill

Use this skill when working with FreeCAD via the MCP server. It provides access to FreeCAD documentation and best practices.

Documentation Location

FreeCAD wiki documentation: /home/praveen/Desktop/Freecadmcp/docs/freecad/

Available Workbenches & Tools

Core Objects (Part Workbench)

Part::Box - Create boxes (Length, Width, Height)
Part::Cylinder - Create cylinders (Radius, Height)
Part::Sphere - Create spheres (Radius)
Part::Cone - Create cones (Radius, Radius2, Height)
Part::Torus - Create torus (Radius, Radius2)
Part::Cylinder - Create cylinders (Radius, Height)

Draft Objects

Draft::Circle - Create circles
Draft::Rectangle - Create rectangles
Draft::Polygon - Create polygons
Draft::Arc - Create arcs

FEM Analysis

Create documents, objects, meshes
Apply constraints (Fixed, Force, Pressure)
Run CalculiX solver
Get stress/displacement results

Parts Library

Insert pre-made parts from FreeCAD library

Common Properties

ViewObject.ShapeColor - RGB values [R, G, B, Alpha] (0-1 range)
Placement.Base - Position {x, y, z}
Placement.Rotation - {Axis: {x,y,z}, Angle: degrees}

Workflow

create_document - Create new document
create_object - Create objects with correct obj_type and properties
get_view - Get screenshots to verify
execute_code - Run custom Python for complex operations
run_fem_analysis - For stress analysis

Documentation Reference

Search /home/praveen/Desktop/Freecadmcp/docs/freecad/ for:

Workbench guides
Part design tutorials
FEM analysis documentation
Python API reference
Sketcher workbench
TechDraw documentation

Key Files

Part_Workbench.md - Part workbench guide
FEM_Workbench.md - FEM analysis guide
Draft_Workbench.md - Draft objects guide
Sketcher_Workbench.md - Sketcher guide
Python_Console_and_Macro.md - Python scripting

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.

11d ago First seen · 60 lines · 0 tokens per session scan A e56da88ba740

Subscribe to this mod's changes

freecad is a skill published in the GitHub repository GadatheGod/freecad-mcp-pro (1 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 509 tokens. 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.

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freecad-mcp-pro: Skill for OpenCode