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CONCEPT

skills

A harness primitive that packages reusable agent capability as persistent, shareable files — commonly Markdown (SKILL.md) — loaded on demand. Skills implement progressive disclosure: instructions and tools enter the context only when needed, keeping it dense and guarding against context rot. They make agent behavior testable and portable.

Origin

Introduced by Anthropic in 2025 as an agent primitive that packages capability into loadable SKILL.md files.

definition
Harness primitive for progressive disclosure protecting against context rot
format
Persistent, testable, and shareable markdown files (SKILL.md)

Related entities

Fiches (2)