How to design AI agent loops: schedules, goals, and subagents in Claude Code and Codex

Short summary

Lenny's Newsletter breaks down AI agent loop design patterns essential for building autonomous systems using Claude Code and Codex. Content covers heartbeat-based monitoring, cron scheduling, goal-driven state transitions, and subagent orchestration. Two live code builds demonstrate practical implementations for eliminating manual PR oversight.

• •Agent loop patterns: heartbeats, crons, goals, and subagents explained
• •Live Claude Code and Codex demonstrations
• •Practical automation patterns for autonomous workflows

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