I Built a Team of Self-Improving AI Agents
Every night at 1am, 3am, 4am, and 5am, a set of Claude Code agents build something, grade themselves against a rubric, and write their own rules before the next run.
October 6thA professional motion designer hands his entire YouTube edit, script to graphics to quality check, to Claude Code and breaks down what it actually costs.
Claude Code can perform all six jobs of video editing (research, cutting, planning, graphics, quality control, and learning from notes) when each job is scoped narrowly and backed by a skill that rewrites its own rules after every edit.
A 15-year motion designer and video editor now lets Claude Code handle the entire edit of his YouTube videos: researching hooks, writing and fact-checking the script, cutting out mistakes and syncing audio to video, planning a beat-by-beat graphics map, building the graphics through parallel sub-agents, checking the final cut frame by frame against a six-point failure list, and rewriting its own rule books from his notes after every video. The video used about 1.4 billion tokens, worth roughly $445 at API pricing but covered by a flat Claude Max subscription, and took about 12 hours of Claude's working time versus three days to a week for a traditional editor. The core lesson: give Claude one narrow job at a time, not one prompt for a finished video.
Sign in and you get 23 free chat messages on us — ask for the hook, quote a framework, find the exact transcript moment, generate a markdown action plan. Bring your own key when you want unlimited.
Create a free account →
Duncan opens by claiming every caption, motion graphic, and animated card in the video was built by Claude Code with no human editor, then previews the six jobs AI now handles and explains why his earlier AI-edited videos looked cheap until he started giving Claude one job at a time inside a reusable skill.

Before writing anything, Claude studies how top creators in the niche open their videos and saves the best hook patterns to a library; when it writes the script, every claimed fact gets checked against a real source, and any fact it can't verify gets cut.

Claude transcribes every spoken word with exact timing, keeps only the last clean take of each line, and cuts the rest; it also measures and corrects a camera-to-microphone sync drift that was making his lips look slightly out of time with his voice.

A beat map lists every sentence and what should be on screen while it's said (140 beats in one past video); Claude studies reference edits from sites like promptmotion.com before building, and a full graphics plan gets approved before any single graphic is built, since a plan is cheap to revise and a finished graphic isn't.

Claude splits the video into sections and hands each to a sub-agent that codes the graphic using a free tool called HyperFrames, built by Heygen; Opus handles planning and creative direction while cheaper Sonnet sub-agents do the building, renders now queue one at a time after parallel renders once maxed out his machine, and turning off motion blur plus rendering draft cuts at half-size made renders about three times faster.

Claude now reviews the cut at 10 frames per second instead of its original one-frame-per-second pass, checking for six specific failures: animations that play twice, graphics that flash for a split second, text shown too briefly to read, graphics covering his face, repeated words, and lips drifting out of sync.

Every round of notes Duncan gives on a cut (36 on one video) gets turned into a rule-book update; when a new note contradicts an existing rule, Claude rewrites that rule instead of stacking a new one on top, which is meant to keep the system's 12 rule books from drifting into bloat or contradictions.

This video used about 1.4 billion tokens, roughly 500 million from Opus planning and directing and 900 million from Sonnet sub-agents building; at API rates that's about $445, but it's covered by his flat Claude Max 20x subscription, and the whole process took about 12 hours of Claude working plus his own review time, versus three days to a week for a traditional editor.
Treat video editing as six separate jobs (research, cut, plan, graphics, check, learn), each run through its own checklist, and the system gets cheaper and more reliable with every video.
“Claude edited this entire video.”
“AI will happily make up a fact that sounds right, like a view count or a date.”
“This is the worst it's ever going to be.”
See every word as it's spoken — crank it to 2× and still catch all of it. The same dual-channel trick behind Amazon's Kindle + Audible.
A professional editor opens by claiming he never touched an editing timeline. Not the captions, not the motion graphics, not the cards flying across the screen. Claude Code did it all, and he walks through exactly how.
The six discrete jobs Claude is given one at a time instead of one combined 'edit this video' prompt, each with its own checklist and its own rule book.
Giving Claude a concrete task plus a way to check its own work, so it keeps iterating until the output is actually correct instead of stopping at a first pass.
The specific failure checklist Claude runs at 10 frames per second against every rendered cut.
“If you want to master Claude Code in 45 days and get this starter kit plus all my skills and resources already done for you, come join over 8,000 builders inside the Claude Code Club. It's only $9 a month.”
Soft, value-first pitch placed at the very end, only after fully delivering the six-job breakdown and the real cost numbers; positions the paid community as the shortcut version of his own five months of iteration.
00:00
00:08
00:15
00:25
00:33
00:38
00:47
00:52
01:02
01:09
01:15
01:22
01:28
01:37
01:44
01:52
01:59
02:11
02:15
02:25
02:32
02:36
02:44
02:51
02:57
03:06
03:16
03:20
03:28
03:36
03:45
03:49
03:58
04:02
04:10
04:19
04:30
04:33
04:42
04:48
04:53
05:01
05:12
05:14
05:27
05:35
05:40
05:43
05:52
06:01
06:06
06:12
06:26
06:30
06:35
06:45
06:52
06:59
07:07
07:14
07:23
07:26
07:36
07:41
07:50
08:00
08:04
08:12
08:21
08:27
08:34
08:42
08:46
08:56
09:03
09:12
09:17
09:28
09:33
09:40Add Modern Creator as a preferred source and Google shows you more of our breakdowns in Search, Top Stories, and AI Overviews. It only changes what you see, and you can undo it in your Google settings anytime.
Every night at 1am, 3am, 4am, and 5am, a set of Claude Code agents build something, grade themselves against a rubric, and write their own rules before the next run.
October 6thA reverse engineering tool called REA jumped from 13,000 to 149,000 GitHub stars in five days, and this creator uses it to make the case for what still has value once any app can be copied.
October 13thA week-old open-source project called ArtCraft cloned Photoshop, Premiere, After Effects, Illustrator, Lightroom, InDesign, and Acrobat for free, mostly by pointing Claude Opus at the problem, and this breaks down which clones are actually ready to use today.
October 10thHow one Claude Code agent reads sponsor emails, negotiates deals, and posts the paid videos itself.
September 29thOne creator claims Claude Opus 5.5 replaced the $1,500-a-month editor who used to make his Instagram Reels, and walks through the eight-step system that does it.
September 27thA screen-recorded read-through of Anthropic's own prompting playbook for Opus 5.5, tip by tip, with a mid-video pitch for the creator's $9 Claude Code community.
September 23rd