Skills are modular, self-contained packages that extend Claude's capabilities by providing specialized knowledge, workflows, and tools. Think of them as "onboarding guides" for specific domains or tasks—they transform Claude from a general-purpose agent into a specialized agent equipped with procedural knowledge that no model can fully possess.
The context window is a public good. Skills share the context window with everything else Claude needs: system prompt, conversation history, other Skills' metadata, and the actual user request.
Default assumption: Claude is already very smart. Only add context Claude doesn't already have. Challenge each piece of information: "Does Claude really need this explanation?" and "Does this paragraph justify its token cost?"
Guida per creare competenze efficaci che estendono le capacità di Claude. Da utilizzare durante la creazione, l'aggiornamento o il miglioramento delle competenze, la struttura delle competenze di apprendimento, la divulgazione progressiva o la risoluzione dei problemi relativi alle competenze. Fonte: philoserf/claude-code-setup.