skill-creator
Creates new AI agent skills following the Agent Skills spec. Trigger: When user asks to create a new skill, add agent instructions, or document patterns for AI.
Best use case
skill-creator is best used when you need a repeatable AI agent workflow instead of a one-off prompt.
Creates new AI agent skills following the Agent Skills spec. Trigger: When user asks to create a new skill, add agent instructions, or document patterns for AI.
Teams using skill-creator should expect a more consistent output, faster repeated execution, less prompt rewriting.
When to use this skill
- You want a reusable workflow that can be run more than once with consistent structure.
When not to use this skill
- You only need a quick one-off answer and do not need a reusable workflow.
- You cannot install or maintain the underlying files, dependencies, or repository context.
Installation
Claude Code / Cursor / Codex
Manual Installation
- Download SKILL.md from GitHub
- Place it in
.claude/skills/skill-creator/SKILL.mdinside your project - Restart your AI agent — it will auto-discover the skill
How skill-creator Compares
| Feature / Agent | skill-creator | Standard Approach |
|---|---|---|
| Platform Support | Not specified | Limited / Varies |
| Context Awareness | High | Baseline |
| Installation Complexity | Unknown | N/A |
Frequently Asked Questions
What does this skill do?
Creates new AI agent skills following the Agent Skills spec. Trigger: When user asks to create a new skill, add agent instructions, or document patterns for AI.
Where can I find the source code?
You can find the source code on GitHub using the link provided at the top of the page.
SKILL.md Source
## When to Create a Skill
Create a skill when:
- A pattern is used repeatedly and AI needs guidance
- Project-specific conventions differ from generic best practices
- Complex workflows need step-by-step instructions
- Decision trees help AI choose the right approach
**Don't create a skill when:**
- Documentation already exists (create a reference instead)
- Pattern is trivial or self-explanatory
- It's a one-off task
---
## Skill Structure
```
skills/{skill-name}/
├── SKILL.md # Required - main skill file
├── assets/ # Optional - templates, schemas, examples
│ ├── template.py
│ └── schema.json
└── references/ # Optional - links to local docs
└── docs.md # Points to docs/developer-guide/*.mdx
```
---
## SKILL.md Template
```markdown
---
name: {skill-name}
description: >
{One-line description of what this skill does}.
Trigger: {When the AI should load this skill}.
license: Apache-2.0
metadata:
author: gentleman-programming
version: "1.0"
---
## When to Use
{Bullet points of when to use this skill}
## Critical Patterns
{The most important rules - what AI MUST know}
## Code Examples
{Minimal, focused examples}
## Commands
```bash
{Common commands}
```
## Resources
- **Templates**: See [assets/](assets/) for {description}
- **Documentation**: See [references/](references/) for local docs
```
---
## Naming Conventions
| Type | Pattern | Examples |
|------|---------|----------|
| Generic skill | `{technology}` | `pytest`, `playwright`, `typescript` |
| Project-specific | `{project}-{component}` | `myapp-api`, `myapp-ui` |
| Testing skill | `{project}-test-{component}` | `myapp-test-sdk`, `myapp-test-api` |
| Workflow skill | `{action}-{target}` | `skill-creator`, `jira-task` |
---
## Decision: assets/ vs references/
```
Need code templates? → assets/
Need JSON schemas? → assets/
Need example configs? → assets/
Link to existing docs? → references/
Link to external guides? → references/ (with local path)
```
**Key Rule**: `references/` should point to LOCAL files, not web URLs.
---
## Frontmatter Fields
| Field | Required | Description |
|-------|----------|-------------|
| `name` | Yes | Skill identifier (lowercase, hyphens) |
| `description` | Yes | What + Trigger in one block |
| `license` | Yes | Always `Apache-2.0` |
| `metadata.author` | Yes | `gentleman-programming` |
| `metadata.version` | Yes | Semantic version as string |
---
## Content Guidelines
### DO
- Start with the most critical patterns
- Use tables for decision trees
- Keep code examples minimal and focused
- Include Commands section with copy-paste commands
### DON'T
- Add Keywords section (agent searches frontmatter, not body)
- Duplicate content from existing docs (reference instead)
- Include lengthy explanations (link to docs)
- Add troubleshooting sections (keep focused)
- Use web URLs in references (use local paths)
---
## Registering the Skill
After creating the skill, add it to `AGENTS.md`:
```markdown
| `{skill-name}` | {Description} | [SKILL.md](skills/{skill-name}/SKILL.md) |
```
---
## Checklist Before Creating
- [ ] Skill doesn't already exist (check `skills/`)
- [ ] Pattern is reusable (not one-off)
- [ ] Name follows conventions
- [ ] Frontmatter is complete (description includes trigger keywords)
- [ ] Critical patterns are clear
- [ ] Code examples are minimal
- [ ] Commands section exists
- [ ] Added to AGENTS.md
## Resources
- **Templates**: See [assets/](assets/) for SKILL.md templateRelated Skills
skill-registry
Create or update the skill registry for the current project. Scans user skills and project conventions, writes .atl/skill-registry.md, and saves to engram if available. Trigger: When user says "update skills", "skill registry", "actualizar skills", "update registry", or after installing/removing skills.
sdd-verify
Validate that implementation matches specs, design, and tasks. Trigger: When the orchestrator launches you to verify a completed (or partially completed) change.
sdd-tasks
Break down a change into an implementation task checklist. Trigger: When the orchestrator launches you to create or update the task breakdown for a change.
sdd-spec
Write specifications with requirements and scenarios (delta specs for changes). Trigger: When the orchestrator launches you to write or update specs for a change.
sdd-propose
Create a change proposal with intent, scope, and approach. Trigger: When the orchestrator launches you to create or update a proposal for a change.
sdd-init
Initialize Spec-Driven Development context in any project. Detects stack, conventions, testing capabilities, and bootstraps the active persistence backend. Trigger: When user wants to initialize SDD in a project, or says "sdd init", "iniciar sdd", "openspec init".
sdd-explore
Explore and investigate ideas before committing to a change. Trigger: When the orchestrator launches you to think through a feature, investigate the codebase, or clarify requirements.
sdd-design
Create technical design document with architecture decisions and approach. Trigger: When the orchestrator launches you to write or update the technical design for a change.
sdd-archive
Sync delta specs to main specs and archive a completed change. Trigger: When the orchestrator launches you to archive a change after implementation and verification.
sdd-apply
Implement tasks from the change, writing actual code following the specs and design. Trigger: When the orchestrator launches you to implement one or more tasks from a change.
judgment-day
Parallel adversarial review protocol that launches two independent blind judge sub-agents simultaneously to review the same target, synthesizes their findings, applies fixes, and re-judges until both pass or escalates after 2 iterations. Trigger: When user says "judgment day", "judgment-day", "review adversarial", "dual review", "doble review", "juzgar", "que lo juzguen".
issue-creation
Issue creation workflow for Agent Teams Lite following the issue-first enforcement system. Trigger: When creating a GitHub issue, reporting a bug, or requesting a feature.