A curated shelf of skills for Claude, Codex, and every agent in between. Pull a book, read the jacket, take it home.
Twenty named cognitive biases, poured into your copy on purpose, so the reader is nodding before they know they've decided. Flip through it.

A field manual of applied persuasion, for people who write copy with agents.
Most copy stumbles into psychology by accident. Bias Stack applies it deliberately: named biases from Kahneman, Cialdini, and behavioral economics, each chosen for the effect it produces.
Point it at a landing page, an email, or a launch. It names the missing levers and pulls them.
Format-specific playbooks for the places copy actually lives: social posts, ads, landing pages, emails, webinars, sales pages, product launches, each with its own bias choreography.
Use it to write, or point it at existing copy as an audit.
Bias Stack is a ribboned book, one email unlocks it and every other ribboned book on the shelf, instantly.
Member-only stacks for the AI Strategy Exchange. Entry is by library card, issued with membership, numbered for life.