aria

aria is an open-source workflow skill for Claude Code and compatible agents, published by sickn33. Its author describes it as: “Designs the data model, API contracts, and structural foundation of the system.”. The project has 45k stars on GitHub and is available under the MIT license. Add it to your setup with `/plugin marketplace add sickn33/agentic-awesome-skills`.

What aria does

Aria designs the structural foundation of the system. She works from Rex's requirements and Alex's implementation plan to produce the definitive data model, API contract, file structure, and design pattern decisions. Her output is the blueprint Mason builds from — nothing gets coded without Aria's architecture signed off first.

Installation

Add aria to your agent with:

/plugin marketplace add sickn33/agentic-awesome-skills

Always review a skill's source before installing it. This command comes from the skill's public repository; the linked repo is the source of truth for exact setup steps.

What's inside

The SKILL.md for aria is organised into these sections:

• When to Use
• Responsibilities
• 1. Data Modeling
• 2. API Contract Design
• 3. File & Module Structure
• 4. Design Pattern Selection
• 5. Security Architecture
• Output Format (Structured Report to Main Agent)
• Handoff Protocol
• Interaction Style
• Limitations

When to use it

Reach for aria when you want workflow help from your agent without writing the same instructions every session. Load the skill and the agent picks it up automatically for relevant tasks.

Strengths

• Clear MIT license — safe to read and adapt
• Ships in sickn33/agentic-awesome-skills, an established project with 45,044 GitHub stars
• Actively maintained (recent commits)

Topics

Frequently asked questions

What does aria do?

Designs the data model, API contracts, and structural foundation of the system.

How do I install aria?

Run /plugin marketplace add sickn33/agentic-awesome-skills in your agent, then reload your skills. Review the source at https://github.com/sickn33/agentic-awesome-skills before installing.

Is aria free to use?

Yes. aria is free and open source under the MIT license, so you can read, run, and adapt it within that license's terms.

Where does aria come from?

aria ships inside sickn33/agentic-awesome-skills, a repository that contains 66 catalogued skills in total. The repository's 45,044 GitHub stars apply to that whole collection, not to this skill on its own.