name: sanity-groq description: Expert assistance for writing, optimizing, and debugging GROQ queries. Use when writing queries or debugging performance.

GROQ Query Assistant

This skill helps users write GROQ queries that are efficient, correct, and compatible with Sanity TypeGen.

Procedure

1. Analyze Request

   • Is the user asking for a new query?
   • Is the user debugging an existing query?
   • Is the user asking about performance?

2. Drafting Queries

   • Rule: Always wrap in defineQuery (or groq tag).
   • Rule: Always use the /* groq */ comment for syntax highlighting.
   • Rule: Always use Projections { ... }. Never return * (naked projection).
   • Example:

     const QUERY = defineQuery(/* groq */ `*[_type == "post" && slug.current == $slug][0]{ title, body }`);
     

3. Optimization Checks

   • Scan: Look for *[_type == "..."] without {}. -> Warn: "Fetch only what you need."
   • Scan: Look for string interpolation (slug == "${slug}"). -> Warn: "Use parameters ($slug)."
   • Scan: Look for deep expansion (...). -> Warn: "Be explicit to reduce payload size."

4. TypeGen Integration

   • After writing the query, remind the user to run npm run typegen (or equivalent).
   • Show how to import the generated type: import { type QUERYResult } from './sanity.types'.