setup-custom-libraries
Register, add, or update existing custom Simulink block libraries and configure block policy and knowledge index. Use when a user wants to register, set up, configure, or add existing .slx library files for agent-assisted model building. Do NOT use when the user wants to create or author a new library from scratch — that requires building-simulink-models.
npx skills add matlab/simulink-agentic-toolkit --skill setup-custom-libraries --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Setup Custom Libraries Register or update custom Simulink block libraries so the agent prefers them over built-in blocks during model building. ## When to Use - User asks to set up, register, add, or configure custom libraries - User wants to add new `.slx` files to an existing library configuration - User says "setup custom libraries", "add my library", "configure libraries", "add a new library file" - `building-simulink-models` routes here via the policy gate (`gatePass: false`) - **Never** invoke when `found: false` — that means no custom libraries are configured and the user hasn't asked for them ## When NOT to Use - User wants to **create** a custom library from scratch (author new blocks, build a new `.slx` library file) → use `building-simulink-models` skill with `model_edit` directly. This skill only *registers* existing libraries; it cannot create library content. - Only configuring block exclusions or parameter protection (libraries already declared) → `configuring-block-policy` - Only curating block descriptions/categories (libraries already declared) → `curating-library-kg` ## Workflow **Do this FIRST and ALONE — no other tool calls in the same message.** Call `librar
- When to Use
- When NOT to Use
- Workflow
- Management menu (config already complete)
- Adding files to existing config
- Guardrails
What does the setup-custom-libraries skill do?
Register, add, or update existing custom Simulink block libraries and configure block policy and knowledge index. Use when a user wants to register, set up, configure, or add existing .slx library files for agent-assisted model building. Do NOT use when the user wants to create or author a new library from scratch — that requires building-simulink-models.
How do I install it?
Run `npx skills add matlab/simulink-agentic-toolkit --skill setup-custom-libraries --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From matlab/simulink-agentic-toolkit, a repository with 903 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.