Understanding agents: Foundational, custom, and external

What this post added

This post introduces the GitLab Duo Agent Platform, detailing its architecture and capabilities. It categorizes agents into Foundational (GitLab Duo Chat, Planner, Security Analyst, Data Analyst, CI Expert), Custom (user-defined for team-specific workflows), and External (integrating with third-party AI providers like Claude, Codex, Amazon Q, Gemini). It explains how to create and configure custom agents using system prompts and discusses best practices for their development and deployment. The post also outlines the use cases and setup for external agents, emphasizing their role in event-triggered automation and leveraging specialized AI models for tasks like code review and security analysis.