Is the Setup Custom Libraries skill free?

Yes. The skill itself is free from matlab/simulink-agentic-toolkit. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Setup Custom Libraries SkillProof Score?

9.6/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 9/10, docs & honesty 5/5.

How do I install Setup Custom Libraries?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use Setup Custom Libraries with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

Setup Custom Libraries

Registers custom Simulink block libraries so the agent prefers them over built-in blocks.

by matlab · matlab/simulink-agentic-toolkit

Tested · Works

Install — copy the command Download source ↗

Test report

Verdict: Tested · Works
Score: 9.6/10
Tested: Jul 13, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · b5827b2

Enforces MathWorks' own APIs for Simulink library setup: walked the three-gate flow and correctly refused to hand-write .satk JSON or call find_system/load_system, deferring instead to library.LibraryConfig.save() and library.kg.Populate.run() as the guardrails require.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 9/10
Docs & honesty 5/5

What Setup Custom Libraries does

Walks an agent through a three-gate flow to declare custom Simulink block libraries, set block usage policy, and build a library knowledge index, so model-building agents reuse a team's own blocks instead of primitives. Triggers when a user wants to register, set up, configure, or add files to custom libraries for agent-assisted Simulink model building.

How to install Setup Custom Libraries

git clone https://github.com/matlab/simulink-agentic-toolkit
cd simulink-agentic-toolkit
mkdir -p ~/.claude/skills
cp -r skills-catalog/model-based-design-core/setup-custom-libraries ~/.claude/skills/setup-custom-libraries

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Setup Custom Libraries

/setup-custom-libraries Registers custom Simulink block libraries so the agent prefers them over built-in blocks.

It also activates on plain-language prompts like these:

Register our custom Simulink block library so you use it by default
Set up a policy so you prefer our own Simulink blocks over built-ins
Index our team's custom Simulink library for model-building reuse

Frequently asked questions

Is the Setup Custom Libraries skill free?: Yes. The skill itself is free from matlab/simulink-agentic-toolkit. SkillProof publishes the install command and an independent test verdict at no cost.
Does Setup Custom Libraries work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 13, 2026. Verdict: Tested · Works. Enforces MathWorks' own APIs for Simulink library setup: walked the three-gate flow and correctly refused to hand-write .satk JSON or call find_system/load_system, deferring instead to library.LibraryConfig.save() and library.kg.Populate.run() as the guardrails require.
What is the Setup Custom Libraries SkillProof Score?: 9.6/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 9/10, docs & honesty 5/5.
How do I install Setup Custom Libraries?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Setup Custom Libraries with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.