query_engines

Complete guide to query engines, modes, and customization.

Skills
AI research
4

What it does and how to use it

A skill that teaches Claude Code to do ai research tasks well. It is packaged knowledge the model uses whenever it is relevant.

Install the skill (command above).
In Claude Code, describe what you need - the skill turns on by itself when the context fits.
No commands to memorize: you talk in plain language and the skill does the rest.

Install (Claude Code)

mkdir -p .claude/skills/query-engines && curl -fsSL https://doutorai.pt/data/lib/skills__query-engines.md -o .claude/skills/query-engines/SKILL.md

Paste this command into the terminal, in your project folder, and the component installs automatically.

Content

# LlamaIndex Query Engines Guide

Complete guide to query engines, modes, and customization.

## What are query engines?

Query engines power the retrieval and response generation in LlamaIndex:
1. Retrieve relevant chunks from index
2. Generate response using LLM + context
3. Return answer (optionally with sources)

## Basic query engine

```python
from llama_index.core import VectorStoreIndex

index = VectorStoreIndex.from_documents(documents)

# Default query engine
query_engine = index.as_query_engine()
response = query_engine.query("What is the main topic?")
print(response)
```

## Respon

- 🔒 Full content on the Pro plan (€7.99/month) -

Need help with Claude Code?

Ask Dr AI - it explains things simply.

Need a tailor-made solution?

Not sure where to start with AI in your business? Get a free assessment and a tailored plan - no commitment.

Save hours every week with AI, no hassle

Doutor AI gives you 1,859 ready-to-copy AI prompts, by industry and in plain English - plus a complete technical library for those who want to go further.

See plans