OpenCAD: Skill for Claude Code

.agents/skills/create-cad-files/SKILL.md

create-cad-files is a skill for Claude Code from caid-technologies/OpenCAD. It costs 73 tokens per session (135 once invoked), scanned A, original, Apache-2.0.

A tool for creating dimensioned mechanical 3D models from written requirements and exporting them as STEP, STP, or STL files. These are standard formats for editable CAD models and 3D-printing meshes.

In plain words
What is it for?
Use it to create or revise mechanical parts and export validated CAD or 3D-printing files.
Why use it?
It turns measurements and part requirements into files that can be checked or used in manufacturing and printing workflows.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: installed under .agents/ (shared by several agents).

This is caid-technologies/OpenCAD's own configuration. It tells Claude Code how to work on OpenCAD 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 OpenCAD configures →

Part of the opencad plugin — 1 skill shipped together

Reuse

Borrowing it

Nothing to install: this file belongs to caid-technologies/OpenCAD. 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/caid-technologies/OpenCAD/main/.agents/skills/create-cad-files/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/caid-technologies/OpenCAD

Made for: Claude Code.

Or install opencad, the plugin that ships this one along with the rest of its 1 skill.

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 create-cad-files

README.md
[![agentmods](https://agentmods.dev/badge/skills/caid-technologies/opencad/create-cad-files.svg)](https://agentmods.dev/skills/caid-technologies/opencad/create-cad-files)
Your own site
<a href="https://agentmods.dev/skills/caid-technologies/opencad/create-cad-files"><img src="https://agentmods.dev/badge/skills/caid-technologies/opencad/create-cad-files.svg" alt="Measured on agentmods" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 135 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Agent Snooping · line 8
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
How audits are shown
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 $0.00073 $0.00135
Opus 5 $0.00036 $0.00068
Sonnet 5 $0.00015 $0.00027
Haiku 4.5 $0.00007 $0.00014

Measured 8d ago against content hash 610232fcd17a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

create-cad-files 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 8d 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.

.agents/skills/create-cad-files/SKILL.md · 9 lines

What it actually says

Create CAD Files

Read the packaged skill instructions completely and follow them. Resolve all referenced scripts and references from skills/create-cad-files/; this repository adapter and the installable plugin intentionally share one implementation.

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. 8d ago First seen · 9 lines · 73 tokens per session scan A 610232fcd17a

Subscribe to this mod's changes

create-cad-files is a skill published in the GitHub repository caid-technologies/OpenCAD (55 stars, last pushed 5d ago), licensed Apache-2.0. It adds 73 tokens to every session and 135 once invoked, about $0.0004 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.