efficiency

Cheaper Is Greener: Every Token You Cut Is Energy You Don't Burn

The lever that cuts your AI bill cuts your environmental footprint too. They're the same lever — here's the equation, honestly.

The Write-Side Context Tax: The Append That Secretly Reads the Whole File

"Append a line" sounds free — in most tooling it secretly reads and rewrites the whole file first. The read-side context tax has a write-side twin: read-modify-write in disguise.