Ben AI's summary of Anthropic's guidance on effort: it sets how much Claude reads, checks and decides alone, not how smart it is. Low, medium, high and max, and when to use each.

Anthropic's guidance for getting the most out of each Opus release in Claude and Claude Code, newest first: Opus 5.5 (September 2026) and Opus 4.7 (April 2026).

A widely-shared X guide on setting up Claude with Projects, context, and prompting habits that unlock the 90% most people never use.

Practical guardrails for building Claude Skills that answer only from a provided knowledge base.

Andrej Karpathy's observations on LLM coding failure modes, codified into four principles. Now shipped as a Claude Code plugin under the Multica org.

Anthropic Claude Prompt Engineering Overview - Optimize model behavior with strategic prompts.

a game-changing AI model for text-to-image (art) generation