This is the only post you need to master loop engineering,

If you still feel overwhelmed with /loop - you'll want to save this.
To be honest, prompt engineering is dead. Your only focus should be on mastering loop engineering.
Here's the entire framework broken down:
The old way vs the new way of prompting
Old way: you prompt → AI responds → you check it → you reprompt → repeat.
New way: you define the goal once. The AI tries something, checks its own work, fixes errors, tries again, and marks itself done.
This only works now because Fable 5 and GPT-5.6 Sol are actually smart enough to self-correct.
The 2 commands that matter for loop engineering
→ /goal: the mission. What you want achieved and the exact conditions for when it's done.
→ /loop: the interval. How often you want that mission repeated (every minute, hour, day).
Inner loop vs outer loop (most people miss this)
Inner loops: one mission, run internally.
Example: "Audit my website like a $5K consultant. List 10 issues with severity, location, and a fix. Stop after 12 turns." - One task, self-corrected until done.
Outer loop: a recurring job on a schedule.
Examples: Scanning competitor channels every day, monitoring your niche on X - these run indefinitely, and self-improving each cycle.
This is the absolute bare-bones of loop engineering, and if you have no clue where to start, just start with these two commands and a basic inner/outer loop framework.
Pro tip:
Prompt Claude: "Based on everything you know about me and my context, help me build one useful inner & outer loop for my daily work."