---
title: Concepts
description: Core concepts behind CORAL's architecture.
---


Understanding these concepts helps you get the most out of CORAL.

1. [Architecture](/concepts/architecture) — The overall design and data flow
2. [Agents](/concepts/agents) — Agent lifecycle, runtimes, and worktrees
3. [Shared State](/concepts/shared-state) — The `.coral/` directory and knowledge sharing
4. [Eval Loop](/concepts/eval-loop) — How grading, scoring, and feedback work
