docs-prompting
Anthropic Docs — Prompt Engineering & Structured Outputs
URL: https://docs.anthropic.com/en/docs/build-with-claude/prompt-engineering/overview Publisher: Anthropic Docs Retrieved: 2026-07-08
Summary
Anthropic's prompt engineering docs (now consolidated into "Prompting best practices" on platform.claude.com) covering general principles — be clear and direct, add context, use 3–5 examples wrapped in <example>/<examples> tags, structure prompts with XML tags, roles, long-context tips (longform data first / query last, up to ~30% quality gain), and chain-of-thought/adaptive thinking. Also covers migration considerations for Claude 4.6+ (prefilled last-turn responses unsupported → 400 error) and the Structured Outputs feature (JSON-schema constrained decoding via output_config.format and strict tool use, with additionalProperties: false mandatory).