Meta Description: A deep technical breakdown of how AI coding agents like Claude Code and OpenAI Codex work under the hood — covering the agentic loop architecture, context window management, subagent orchestration, CI/CD integration, and what Uber's 25%-commit milestone reveals about where software engineering is headed in 2026.

Table of Contents

The Numbers That Changed Everything

What Actually Makes an AI Coding Agent Different

Inside the Agentic Loop: The Core Architecture