> ## Documentation Index
> Fetch the complete documentation index at: https://java.agentscope.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

An `AgentSkill` is AgentScope's Markdown + resource-file format for describing a reusable "skill" (see [Harness · Skill](/v2/en/docs/harness/skill)). The `AgentSkillRepository` interface loads skills from external storage and hands them to the `Toolkit` / `ReActAgent`.

The `agentscope-extensions-*` repository ships the following ready-to-use implementations:

| Extension                                                               | Backend             | Best for                                            |
| ----------------------------------------------------------------------- | ------------------- | --------------------------------------------------- |
| [Git Repository](/v2/en/integration/skill/git-repository)               | Remote Git repo     | Git-based versioning and review                     |
| [MySQL Repository](/v2/en/integration/skill/mysql-repository)           | MySQL database      | Online editing via admin console / business systems |
| [PostgreSQL Repository](/v2/en/integration/skill/postgresql-repository) | PostgreSQL database | Existing PostgreSQL infra, online editing           |

> Nacos also provides an `AgentSkillRepository` implementation: see [Nacos](/v2/en/integration/infrastructure/nacos).

## Wiring

```java theme={null}
AgentSkillRepository repo = ...;        // any implementation
List<AgentSkill> skills = repo.getAllSkills();

Toolkit toolkit = new Toolkit();
skills.forEach(toolkit::registerSkill);

ReActAgent agent = ReActAgent.builder()
    .name("Assistant")
    .model(model)
    .toolkit(toolkit)
    .build();
```

## Choosing one

* **Want Git PR flow, reviewable text** → Git
* **Want admin console / live config edits** → MySQL, PostgreSQL, or Nacos
* **Mix multiple sources** → implement `AgentSkillRepository`, or register multiple repos to the same toolkit