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BoxLang AI 3.0 introduces an AI Skills system — a first-class implementation of Anthropic's Agent Skills open standard — that solves the problem of drifting, copy-pasted system prompts across agents. Skills are named, versioned knowledge blocks defined in SKILL.md files stored under .ai/skills/. They can be created from files, directories, or inline code using the aiSkill() BIF. Two injection modes are supported: always-on (full content injected every call) and lazy/available (only a compact index is shown; the LLM calls loadSkill() on demand, keeping token usage low). A global skills pool allows app-level registration so all agents inherit skills automatically. The post includes a full API reference and a real-world code review agent example.

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