What is Agent Skills by Addy Osmani?

Engineering workflow skills for coding agents, from spec to ship. It is listed under Agent skills on PickOpenSource.

Is Agent Skills by Addy Osmani open source?

Yes. Its source code is public on GitHub under the MIT license.

Can you self-host Agent Skills by Addy Osmani?

Yes. Listed deployment options: npx skills, Claude Code plugin.

Is Agent Skills by Addy Osmani free?

Pricing is not recorded in this catalog. Check the official website for hosted plans and edition limits, and the MIT license for usage conditions. Self-hosting also requires infrastructure and maintenance.

What are alternatives to Agent Skills by Addy Osmani?

Similar agent skills projects include Superpowers, Skills by Matt Pocock, and Ponytail.

Is Agent Skills by Addy Osmani actively maintained?

The latest commit on GitHub was October 10, 2026, and the repository has 105k stars (up 714 since October 11, 2026).

Agent Skills by Addy Osmani — Open-Source Agent Skills

Overview

A set of engineering skills mapped to the development lifecycle, with slash commands for spec, plan, build, test, review and ship. Skills also activate from context, such as API design or UI work.

What it does

Slash commands for spec, plan, build, test, review and ship
Test-driven development skill
Code review and quality gates
Context-triggered design skills

Capability source: Project documentation

Who Agent Skills by Addy Osmani fits

Teams that want one consistent engineering process across several coding agents.

How you run it

Agent Skills by Addy Osmani runs on infrastructure you manage.

Documented deployment options: npx skills, Claude Code plugin.

JavaScript projects · MIT projects · Agent skills

Before you choose it

Installing a single skill with npx copies only that skill, not the shared references directory. Install the whole repository if you need the checklists.

Self-hosting and deployment

Self-hostable: Yes
Cloud / hosted offering: Not recorded
Docker noted in deployment tags: Not recorded
Deployment tags: npx skills, Claude Code plugin
Difficulty: Easy

Agent Skills by Addy Osmani questions

What is Agent Skills by Addy Osmani?: Engineering workflow skills for coding agents, from spec to ship. It is listed under Agent skills on PickOpenSource.
Is Agent Skills by Addy Osmani open source?: Yes. Its source code is public on GitHub under the MIT license.
Can you self-host Agent Skills by Addy Osmani?: Yes. Listed deployment options: npx skills, Claude Code plugin.
Is Agent Skills by Addy Osmani free?: Pricing is not recorded in this catalog. Check the official website for hosted plans and edition limits, and the MIT license for usage conditions. Self-hosting also requires infrastructure and maintenance.
What are alternatives to Agent Skills by Addy Osmani?: Similar agent skills projects include Superpowers, Skills by Matt Pocock, and Ponytail.
Is Agent Skills by Addy Osmani actively maintained?: The latest commit on GitHub was October 10, 2026, and the repository has 105k stars (up 714 since October 11, 2026).

Related projects

Other approved projects in Agent skills: Superpowers, Skills by Matt Pocock, Ponytail.

Superpowers

A software development method for coding agents, built from composable skills.

Stars: 297,987
Updated: 2d ago
License: MIT
Hosting: Self-hosted
Category: Agent Skills

Superpowers

Superpowers gives coding agents a working method: it turns a request into a spec you review, writes an implementation plan, then runs subagent-driven development with review of each task. Its skills trigger automatically once installed.Website GitHub

Compare Agent Skills by Addy Osmani with Superpowers

Skills by Matt Pocock

Small, composable engineering skills from Matt Pocock's own agent setup.

Stars: 286,949
Updated: today
License: MIT
Hosting: Self-hosted
Category: Agent Skills

Skills by Matt Pocock

A set of engineering skills Matt Pocock uses daily, written to be small, easy to adapt and composable, and to work with any model instead of owning your whole process.Website GitHub

Compare Agent Skills by Addy Osmani with Skills by Matt Pocock

Ponytail

A skill that makes coding agents write the smallest change that solves the task.

Stars: 161,519
Updated: 2d ago
License: MIT
Hosting: Self-hosted
Category: Agent Skills

Ponytail

Ponytail is one skill prompt that pushes an agent to reuse existing code and native features before adding dependencies, while keeping validation, error handling, security and accessibility. It adds review and repository audit commands.Website GitHub

Compare Agent Skills by Addy Osmani with Ponytail

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