---
id: "concept-claude-skills"
type: "concept"
source_timestamps: ["00:00:36", "00:01:14", "00:01:46"]
tags: ["claude", "automation", "tooling"]
related: ["concept-claude-projects", "framework-skill-anatomy", "framework-build-or-skip", "claim-vending-machine-usage"]
definition: "Portable instruction sets that define how an AI should work, traveling across all chat sessions to automate repetitive, structured tasks."
---
# Claude Skills

## Definition

A **Claude Skill** is a saved, reusable instruction set — essentially a small text file — that tells [[entity-claude]] *how* to perform a specific structured task. Skills are portable: once defined at the account or workspace level, they travel across every chat session and fire when their trigger description matches the user's request.

> Skills contain **processes**, not knowledge. For knowledge you use [[concept-claude-projects]].

Alex puts it crisply in [[quote-skill-definition]]: *"This is a tool with instructions, not knowledge. This travels across every chat."*

## Why Skills exist

Most users copy-paste long prompts into every new chat — what Alex calls the "vending machine" pattern (see [[claim-vending-machine-usage]] and [[contrarian-vending-machine]]). Skills replace that friction with a stored, named tool you invoke by trigger phrase (e.g. `/hook-generator`). Claude automatically applies the hidden instruction block to whatever context is already in the chat — including any [[concept-claude-projects]] knowledge.

## How Skills are structured

See [[framework-skill-anatomy]] for the three-part anatomy (frontmatter / instructions / examples). The trigger description in the frontmatter is the single highest-leverage element — see [[claim-description-importance]] and [[contrarian-description-over-instructions]].

## When to build one

Don't skill-ify everything. Run candidate tasks through [[framework-build-or-skip]] first.

## Concrete Skills demonstrated in this video

- **Hook Generator** — implements [[framework-six-hook-patterns]].
- **Beat Image Generator / Beat Video Generator** — see [[concept-beat-image-video]].
- **Face Lock Thumbnail Skill** — see [[concept-face-lock]] and [[action-build-thumbnail-skill]].

## Caveat (from enrichment)

Anthropic's official docs describe Skills as instructional wrappers around the model. The phrase "travels across every chat" is an interpretive simplification — portability is scoped to wherever the Skill is enabled (workspace or Project), not literally global. "No knowledge" is best read as "no long-term factual memory store"; Skills can still embed small inline hints (taglines, color codes), they just lack the breadth and updateability of [[concept-claude-projects]].