Skills and Marketplace
Skills are reusable capabilities you add to SuperBuilder's AI agents. Instead of writing the same complex prompt every time, you install a Skill once and it's available in any thread. The Marketplace is where you find, share, and install Skills built by the SuperBuilder community.
What Is a Skill?
A Skill is a packaged capability that extends what an agent can do. Skills can include:
- Prompt templates — pre-written instructions for specific tasks ("write a database migration following our conventions", "review a PR for security issues")
- Tool integrations — connect the agent to external APIs, services, or your internal tools
- Workflow definitions — multi-step automated processes that combine agent actions with external services
- Context packages — pre-loaded knowledge about a framework, library, or domain ("how Rails migrations work", "AWS IAM best practices")
Skills are composable — an agent can use multiple skills simultaneously.
The Marketplace
The Marketplace is where Skills are shared. You browse, preview, and install skills from other developers, teams, and SuperBuilder itself.
Categories in the Marketplace:
- Development tools — Git workflows, code review patterns, testing strategies
- Frameworks — Rails, Django, Next.js, Laravel, Spring — framework-specific skills with opinionated conventions built in
- Cloud providers — AWS, GCP, Azure, Fly.io — help agents work with cloud infrastructure correctly
- Team workflows — patterns for code review, incident response, sprint planning
- Data & databases — PostgreSQL optimization, migration patterns, data modeling
- Security — OWASP checks, dependency auditing, security review workflows
Installing a Skill
- Open the Marketplace from the sidebar
- Browse or search for the skill you need
- Click Install — the skill is added to your SuperBuilder immediately
- In any thread, invoke the skill by name or let the agent use it automatically based on your task
Skills are scoped to your account and available across all your workspaces.
Building Your Own Skills
You can build private skills for your team's specific conventions and workflows. Common reasons to build your own:
- Your team has a specific code style that you want agents to follow consistently
- You have internal tools that you want agents to be able to call
- You have complex multi-step processes that you want to trigger with a single command
- You want to package your SOUL.md conventions into a reusable format
Skills are defined in a structured format that combines prompt instructions, tool definitions, and workflow steps. The SuperBuilder skill builder in the app walks you through creating and testing a skill.
Skills for Teams
Teams can maintain a private skill library shared across all members. When a team member installs a team skill, everyone on the team has access.
This is how you standardize AI-assisted development across a team:
- The "our code style" skill ensures every agent follows your conventions
- The "PR review" skill applies your team's specific review criteria
- The "migration workflow" skill follows your database migration process exactly
Skills reduce the variance in what agents produce. Instead of every developer writing their own prompt, everyone uses the same tested skill.
SOUL Configuration
Related to skills, SuperBuilder supports SOUL.md — a configuration file you put in your project that tells agents about your conventions, preferences, and constraints. Unlike a skill (which is external and installable), a SOUL.md is committed to your repo alongside your code.
SOUL.md can include:
- Code style preferences
- Architectural constraints ("always use the repository pattern", "never put business logic in controllers")
- Project-specific context ("this is a multi-tenant SaaS app, always filter by
workspace_id") - Technology choices ("we use Knex, not Sequelize")
- Things to never do ("don't add
console.logto production code")
When an agent works on your project, it reads the SOUL.md and follows it. The combination of SOUL.md for project context and Skills for reusable capabilities gives agents everything they need to produce code that fits your codebase.
Frequently Asked Questions
Are Marketplace skills free?
Most skills in the Marketplace are free. Some premium or enterprise skills may be paid. Skills you build yourself are always free.
Can I audit what a skill does before installing it?
Yes. Skill pages in the Marketplace show the full skill definition — prompt templates, tool definitions, and any external APIs it calls — before you install.
Can I modify an installed skill?
You can fork any public skill and customize it. Your fork is a private copy that you can modify freely without affecting the original.
What happens if a skill is removed from the Marketplace?
Installed skills continue to work even if removed from the Marketplace. Removal only prevents new installations.
Can skills access my codebase?
Skills that define tool integrations can access your project files, but only through the same mechanisms as any agent action. Skills don't have special permissions beyond what an agent normally has.