I Saved $7,189 on Claude Code Tokens. Here’s Every Efficiency Habit That Mattered

I’ve spent the last month running controlled benchmarks across Claude Code sessions. Not casual usage. Instrumented runs with token tracking, cost breakdowns, cache hit rates, and instruction-following scores across four models and five effort levels.Most “tips and tricks” articles for Claude Code read like a feature changelog someone reformatted into listicle form. They throw 30 items at you with no ranking, no cost data, and no indication of what actually moves the needle versus what sounds impressive but saves you nothing.Thanks for reading! Subscribe for free to receive new posts and support my work.This is the opposite. Everything here is ranked by real impact, measured in tokens saved, dollars not spent, or bugs avoided. I’ll show you what I found by running my Claude Code session-metrics plugin across hundreds of sessions, what an Anthropic engineer publicly confirmed, and what the official documentation says.The #1 mistake killing your token budget: one session for…