Installation

System requirements

• Runtime: Bun v1.0 or later
• OS: macOS or Linux
• Optional: Docker (for the web dashboard database)

Install the CLI

npm install -g securitylayer

yarn global add securitylayer

pnpm add -g securitylayer

bun add -g securitylayer

Verify installation

sl --version

You can also use the full command name:

securitylayer --version

What's included

The securitylayer package installs:

• sl / securitylayer — The CLI binary
• @securitylayerai/core — The security engine (capability gate, taint tracker, normalizer, rules, LLM judge)

Next steps

Run the interactive setup wizard:

sl init

See Init for a full walkthrough, or jump to Quick start for an end-to-end walkthrough.