actionable ai

Free guide

Anthropic Deleted 80% Of Their Own Setup. Here's The Prompt That Does It To Yours.

Free copy-paste guide: what's actually making the new models feel dumber, why Anthropic deleted 80% of Claude Code's own instructions, and the safe way to purge your own setup, audit, archive, rebuild, never blind-delete.

  • What's actually making the new models feel dumber
  • Why Anthropic deleted 80% of Claude Code's own instructions
  • The safe way to purge: audit, archive, rebuild (never blind-delete)
  • The exact copy-paste prompt that does it for you

Instant access

Get the free guide

The exact audit prompt behind Anthropic's own 80% system-prompt delete, explained: the counterintuitive cause, the receipts, the audit-archive-rebuild method, and the add-one-back rule.

One-time signup. Every guide in the vault unlocks with it.

A look inside

What's inside

01

What's Inside

What's actually making the new models feel dumber Why Anthropic deleted 80% of Claude Code's own instructions The safe way to purge: audit, archive, rebuild (never blind-delete) The exact copy-paste prompt that does it for you

02

THE PROBLEM

If the new models feel dumber, you're not imagining it.

03

WHY IT'S HAPPENING

This isn't a theory, Anthropic did it to their own product.

About the author

Cooper Simson

Founder of Actionable AI. 30,000+ operators read the newsletter.

Good to know

Questions, answered

Is this guide free?

Yes. Enter your details and you can open the full guide immediately.

Do I need to know how to code?

No. The guide explains the work in practical steps and calls out technical details only when they matter.

What happens after I enter my email?

The guide opens from this page. If the guide email is enabled, you will also receive a link for later.