.. _glossary: Glossary ======== Assistant profile Configuration record describing the assistant identity, global prompts, connections and default collection. Pipeline step One configured step in the assistant pipeline. Processor PHP service that executes a pipeline step. Retriever Processor that searches the vector store and stores retrieved documents in the request context. Retrieved context Text representation of retrieved documents and selected metadata for use in prompts. Frontend source Source metadata exposed to the frontend so answers can link to the documents or pages they were based on. AI connection Configuration record for an AI provider, such as an OpenAI-compatible API. Vector store connection Configuration record for a vector database, such as Qdrant. Collection Logical vector index inside a vector store. Source hash Stable identifier for the source object itself. Content hash Hash used to detect source content changes.