Build, debug, and optimize Claude API / Anthropic SDK apps with prompt caching by default. Also handles migrating existing Claude API code between model versions (4.5 → 4.6 → 4.7) and retired-model replacements.
This skill does not declare a tool allowlist. The agent host applies whatever default tools are available at runtime.
SKILL.md / Manifest
https://raw.githubusercontent.com/anthropics/skills/main/skills/claude-api/SKILL.mdRegistry
github.com/anthropics/skills