Using Lightning Base Components

Lightning Base Components (LBC) are the lightning-* web components shipped by Salesforce. This skill routes an agent through the right decision sequence so the final component choice is as specific as possible and backed by real API docs — not a hand-rolled reimplementation of something that already exists.

When to Use This Skill

• User describes a UI need ("searchable dropdown", "record edit form", "modal with footer") and asks which lightning-* component fits.
• User is about to build a primitive (button group, combobox, toast) and should be using LBC instead.
• User asks you to review LWC markup for LBC-related issues — specifically overriding SLDS classes or restyling LBC internals.
• User needs the authoritative props/events/slots for a specific lightning-* tag.