Deno Development Skills

Modern Deno development knowledge for AI coding assistants. These skills teach your AI assistant how to build Deno applications using current best practices.

Key Principles

These skills enforce modern Deno practices:

1. JSR over deno.land/x - Always use jsr: imports; deno.land/x is deprecated
2. npm: as fallback - Use npm: packages when no JSR alternative exists
3. Built-in tools - Encourage deno fmt, deno lint, deno test, deno doc
4. Fresh patterns - Island architecture with small, serializable-prop islands

Versioning

This project uses Semantic Versioning. When contributing changes:

When to Bump Versions

Files to Update

When making changes, update the appropriate version numbers:

1. Skill-specific changes - Update the skill's version in its SKILL.md frontmatter
2. Plugin releases - Update version in both:
   • .claude-plugin/plugin.json
   • .claude-plugin/marketplace.json

For Contributors

• Include version bumps in your PRs when changing skill content
• Use conventional commits (e.g., feat:, fix:, docs:) to indicate change type
• When in doubt, bump the MINOR version for content changes

Documentation Resources

• Deno Documentation
• Fresh Framework
• JSR Package Registry
• Deno Deploy
• Agent Skills Specification

Installation

These skills follow the Agent Skills Specification.

Claude Code

Option 1: Install as a plugin

# Step 1: Add the marketplace
/plugin marketplace add denoland/skills

# Step 2: Install the plugin
/plugin install deno-skills@denoland-skills

Option 2: Manual installation

Copy the skills you want to use:

# Clone the repository
git clone https://github.com/denoland/skills.git /tmp/deno-skills

# Copy individual skills to your personal skills directory
cp -r /tmp/deno-skills/skills/deno-guidance ~/.claude/skills/
cp -r /tmp/deno-skills/skills/deno-deploy ~/.claude/skills/
# ... or copy all skills
cp -r /tmp/deno-skills/skills/* ~/.claude/skills/

# Or for project-specific installation
cp -r /tmp/deno-skills/skills/* .claude/skills/

Cursor

Note: Agent Skills in Cursor are currently only available in v2.4+.

# Clone the repository
git clone https://github.com/denoland/skills.git /tmp/deno-skills

# Copy skills to your Cursor skills directory
cp -r /tmp/deno-skills/skills/* ~/.cursor/skills/

# Or for project-specific installation
cp -r /tmp/deno-skills/skills/* .cursor/skills/

VS Code with GitHub Copilot

Note: Agent Skills require the chat.useAgentSkills setting to be enabled (currently in preview).

# Clone the repository
git clone https://github.com/denoland/skills.git /tmp/deno-skills

# Copy skills to your project's skills directory
mkdir -p .github/skills
cp -r /tmp/deno-skills/skills/* .github/skills/

# Or for personal installation
cp -r /tmp/deno-skills/skills/* ~/.copilot/skills/

To enable Agent Skills in VS Code:

1. Open VS Code Settings (Cmd/Ctrl + ,)
2. Search for chat.useAgentSkills
3. Enable the setting

Other Platforms

For other AI coding assistants that support the Agent Skills specification, copy the skill directories from skills/ to your platform's skills directory. Check your platform's documentation for the correct location.

Usage

Once installed, your AI assistant will automatically apply Deno best practices when:

• Working in projects with a deno.json file
• Creating new Deno applications
• Adding dependencies
• Deploying to Deno Deploy
• Building Fresh web applications
• Running user code in sandboxes

License

MIT License - see LICENSE