Gen

Organization

partcad

gen

Generate PartCAD geometry from a description, automatically deciding whether the request is a single part, a multi-part assembly, or a 2D sketch and following the matching flow. Use for /pc:gen or when the user asks to generate, create, or model something in PartCAD without saying whether it is a part, an assembly, or a sketch.

Overview

Publisher	partcad
Repository	`partcad`
Skill name	`gen`
Stars	504
Forks	47
Bundled files	Instructions only
License	Apache-2.0
Links	Skill source Repository Homepage

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
Self-contained
Everything the model needs lives in the instructions — no extra files to sync.
Open source
Published by partcad on GitHub. Read the source before you install it.

Installation

Install the Gen AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
https://github.com/partcad/partcad/tree/devel/ai-agents/common/skills/gen
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/partcad/partcad.git /tmp/partcad
mkdir -p .claude/skills
cp -r /tmp/partcad/ai-agents/common/skills/gen .claude/skills/gen

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Gen in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Gen on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Gen is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

pc:gen

Entry point for PartCAD generation when the user has not said whether they want a single part, an assembly, or a 2D sketch. The text after the command ($ARGUMENTS) is the description of what to build. Decide which it is, tell the user your choice, then follow that flow — passing the same description through.

Decide: part, assembly, or sketch?

Part → /pc:gen-part. One continuous piece of 3D geometry — a bracket, a gear, a housing, a knob. Modeled as a single script, even when intricate.
Assembly → /pc:gen-assembly. Several distinct 3D components that fit or move relative to each other — a gearbox, a robot arm, a body with a lid, anything joined by fasteners.
Sketch → /pc:gen-sketch. A 2D profile, outline, or blueprint — a gasket shape, a plate outline, a cross-section to be extruded later.

Heuristics:

"2D", "profile", "outline", "sketch", "cross-section", "blueprint" → sketch.
One noun, "a"/"single", one manufacturing process, one printed/machined piece → part.
Plurals, "with", "attached to", "... and a ...", moving joints, fasteners, or named sub-components → assembly.

If it is genuinely ambiguous, ask one short question. Otherwise proceed with your best judgment and state which you picked — the user can redirect.

Then

Sketch → follow /pc:gen-sketch.
Part → follow /pc:gen-part.
Assembly → follow /pc:gen-assembly (which itself uses /pc:gen-part for any missing components).

Frequently asked questions

What does the Gen AI skill do?

Why use Gen on TypingMind?

Because you install it once and use it with any model. Gen is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Gen in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/partcad/partcad/tree/devel/ai-agents/common/skills/gen. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Gen?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Gen?

As many as you like. As long as a model supports skills, you can use Gen with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Gen AI skill free?

Yes. It is published on GitHub by partcad under the Apache-2.0 license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

pc:gen

Decide: part, assembly, or sketch?

Then

Frequently asked questions

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