AI Coding Field Notes

Field notes on AI coding agents — what they cost, where they break, what shipped. Every published figure (prices, percentages, multiples, token counts and durations) as JSON and CSV, each row carrying the sentence it came from.

View the Project on GitHub xyzs996/ai-coding-field-notes

SaaS Business

6 of the 24 write-ups here are tagged SaaS Business. Every figure quoted below is in the figures table with the sentence it came from.

The Cost-Effective Guide to Using Open Code Review for AI Programming Tools

Open Code Review is an open-source review tool built for AI-assisted development, and in benchmark tests spanning 200 real pull requests across 50 open-source repositories it scored higher on both…

58 Million Plays Started With One Account, Not Four

Two brothers ran a single short-video account until one piece of content took off, and only then copied it across several accounts, which is how the cumulative play count passed 58 million.

A 30-Line Script, 200 Users, and a Niche Nobody Wanted

“Solving a niche problem is the secret to building a profitable Micro-SaaS.” This common advice ignores the power of focusing on a single, well-defined pain point in a specific market.

How to Build a Micro-SaaS Without Spending a Dime on Ads

Jordan posted an introduction thread across 3 Reddit sub-boards and had 200 people asking for access within days, at zero cost, and those users stuck around better than the paid traffic he never bo…

The AI Branding Revolution: How Indie Developers Are Ditching Design Costs with AI

Chris launched WiseMindAI last year and came out of a single session with Miora’s brand visual template holding more than ten finished assets, covering color schemes, typography and social graphics…

Token Optimization for Indie Developers’ AI API Bills

In July 2026, while indie developers building AI coding products full-time watched their API burn rate climb toward their revenue, a quieter shift in the Chinese developer stack showed a different…


All 24 write-ups