
Skill Creator
Author, structure, and evaluate new agent SKILL.md packages so custom capabilities install cleanly across Claude Code, Cursor, and Codex workflows.
Overview
Skill Creator is a journey-wide agent skill that helps you author and refine SKILL.md agent capabilities—usable whenever a solo builder needs durable procedural knowledge before committing to a one-off prompt.
Install
npx skills add https://github.com/vercel-labs/portless --skill skill-creatorWhat is this skill?
- Meta workflow for drafting SKILL.md frontmatter, descriptions, and trigger phrases
- Supports packaging skills for distribution (skills.sh-style catalogs)
- Oriented toward eval and iteration on agent behavior, not one-off scripts
- Apache 2.0 licensed scaffold suitable for fork and publish
- Fits Superpowers-style stacks where you compose many small skills
Adoption & trust: 126 installs on skills.sh; 9.7k GitHub stars; 3/3 security scanners passed (skills.sh audits).
What problem does it solve?
You keep rewriting the same agent instructions in chat instead of shipping a versioned skill with clear triggers and eval-friendly structure.
Who is it for?
Indie builders maintaining a personal or team skill library who want consistent frontmatter, descriptions, and eval loops for agent workflows.
Skip if: Builders who only need a single throwaway prompt with no intent to reuse or publish a skill package.
When should I use this skill?
When creating a new agent skill, refactoring SKILL.md structure, improving triggers and metadata, or preparing a skill for catalog distribution.
What do I get? / Deliverables
You produce a structured SKILL.md package with metadata and triggers ready to install, share, and iterate—often handing off to domain skills once the shell exists.
- Draft or revised SKILL.md with name, description, and invoke guidance
- Skill package layout ready for local install or catalog publish
Recommended Skills
Journey fit
Useful at every journey phase - explore requirements and options before committing to a direction.
Where it fits
Capture a repeatable competitor-scrape ritual as a skill instead of losing it in chat history.
Draft SKILL.md for a Stripe webhook debugger with explicit invoke triggers and output contracts.
Turn your PR review checklist into an installable checker skill the agent runs before merge.
Revise triggers and body after a production false positive so the skill fails closed next time.
How it compares
Skill packaging and authoring guide, not an MCP server integration or a runtime code generator for your app.
Common Questions / FAQ
Who is skill-creator for?
Solo and small-team builders who ship with Claude Code, Cursor, or Codex and want to formalize repeatable agent workflows as installable SKILL.md files.
When should I use skill-creator?
During Idea when sketching agent-assisted research rituals; during Build when codifying integrations and agent-tooling; during Ship when documenting review checklists as skills; and during Operate when updating skills after incidents.
Is skill-creator safe to install?
Treat it like any meta authoring skill—review SKILL.md for shell or network steps before use; confirm pass/fail details on the Security Audits panel on this Prism page rather than assuming a clean bill of health.
SKILL.md
READMESKILL.md - Skill Creator
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