Anthropic releases method to 10× Claude Code / Opus 4.5

Greg Isenberg details 10 expert prompting techniques for Anthropic's Claude Opus 4.5 and Claude Code to eliminate 'AI slop'. Using business examples like a specialty coffee shop and an urban planning newsletter, he demonstrates how constraints, personas, and multi-step reasoning produce superior results. He also pitches 'Offline Mode', a mansion-based event for high-revenue founders to build AI-first multi-product studios.