Before the guardrails

The runtime and a model

Teaching it the conversation

Input rails

Actions and a rail of your own

Learn NVIDIA NeMo Guardrails from scratch: Colang, the config folder, input, dialog, execution and output rails, actions, and a guarded support assistant. Every lesson runs with no API key.

NeMo Guardrails

Where the course goes

NeMo Guardrails tutorial: rails with no API key

What you are going to build

Before NeMo Guardrails: an assistant with no rails

An assistant that answers anything

Why an if statement is not a NeMo Guardrails rail

Blocking a message with an if

Install NeMo Guardrails and read a config.yml

Install it, and what a config is

A custom LLM provider for NeMo Guardrails

A model NeMo can call, with no API key

A stand-in LLM for NeMo Guardrails, no API key

A stand-in model that decides

rails.explain() in NeMo Guardrails

rails.explain(): what the runtime did

Colang define user and define bot in NeMo Guardrails

define user and define bot

Colang define flow in NeMo Guardrails

define flow: joining the two

A custom embedding provider for NeMo Guardrails

The embedding model, and the download it replaces

The generate_user_intent prompt in NeMo Guardrails

The prompt behind the intent

What an unmatched message costs

Counting LLM calls in NeMo Guardrails

One model call, or three

NeMo Guardrails input rails and self check input

Your first input rail

Worth knowing

is_content_safe: how NeMo Guardrails reads a verdict

Yes blocks, No allows

Docs and package disagree

NeMo Guardrails stop and bot refuse to respond

stop, and bot refuse to respond

activated_rails and generation options in NeMo Guardrails

Which rail actually fired

Custom actions in NeMo Guardrails

@action and register_action

Action parameters and context in NeMo Guardrails

What the runtime hands an action

Writing a custom input rail in NeMo Guardrails

An input rail you wrote yourself

RailOutcome in NeMo Guardrails: allow, block, transform

RailOutcome: allow, block, transform

Actions and a rail of your own quiz

Which Colang statement runs a Python function?