Prompts

The example collection from the official OpenAI Cookbook, covering prompt design, structured outputs, tool use, evaluation, and production patterns.

Anthropic's official collection of Claude examples and guides for tool use, the Agent SDK, extended thinking, multimodal work, evaluation, and prompting patterns.

A web, desktop, and browser-extension tool for optimizing, testing, evaluating, and saving prompts, with self-hosting options.

A hand-curated index of prompt and context engineering resources, covering papers, tools, models, benchmarks, courses, and security material.