> ## Documentation Index
> Fetch the complete documentation index at: https://docs.wazoo.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Glossary

> Core terminology, concepts, and definitions across the Wazoo neuro-symbolic platform.

## Knowledge graph & RDF concepts

### RDF (resource description framework)

A [W3C RDF standard](https://www.w3.org/RDF/) framework for representing
information about resources on the web using Subject-Predicate-Object triples.

### SPARQL

A declarative query language and protocol for RDF graph databases defined by the
[W3C SPARQL 1.1 specification](https://www.w3.org/TR/sparql11-query/). SPARQL
allows agents to perform deterministic graph traversals and pattern matching.

### Triple / quad

The foundational unit of RDF data:

* **Triple**: Subject, Predicate, Object (e.g. `ex:Agent ex:uses ex:Worlds`).
* **Quad**: A triple bound to a named graph context (Subject, Predicate, Object,
  Graph/World ID).

### SHACL (shapes constraint language)

A [W3C SHACL standard](https://www.w3.org/TR/shacl/) language for validating RDF
graphs against specified shapes and constraints.

### world

A stateful dataset that acts as an agent's verifiable, AI-native context. A
world records changes chronologically and stays synchronized with retrieval
indexes. Worlds' default data model is an RDF knowledge graph with a hybrid
search index combining FTS5/BM25 keyword matching, vector embeddings, and RDF
structural filters, fused via
[reciprocal rank fusion (RRF)](#reciprocal-rank-fusion-rrf). The world contract
is data-model agnostic: a world can also be backed by a relational database or
another syncable store.

## Neuro-symbolic AI & memory

### Context engine

A specialized system that combines structured knowledge graph querying with
vector similarity search to provide precise, verifiable context to AI models.

### Reciprocal rank fusion (RRF)

An algorithmic technique used by Worlds to fuse search rankings from multiple
retrieval signals (pattern queries, full-text search, and vector embeddings)
into a single, optimized rank list.

### Provenance

The immutable, auditable lineage of facts stored in Worlds, tracking the exact
source, timestamp, and context of every quad assertion.

## Wazoo ecosystem

### Worlds

The authoritative context engine and RDF fact ledger platform
([wazootech/worlds](https://github.com/wazootech/worlds-api)) built by Wazoo
Technologies.

### MemSDK

A backend-agnostic TypeScript SDK interface
([wazootech/memsdk](https://github.com/wazootech/memsdk)) that standardizes
memory operations (add, search, profile, forget) across multiple memory
backends.

### Wazoo skills

The official skills package
([wazootech/wazoo-skills](https://github.com/wazootech/wazoo-skills)) that
equips AI coding agents with decision mapping and memory context tools.