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

Targets Deno 2.9+.

deno-guidance, deno-expert, and deno-project-templates have been merged into the single deno skill. Their content overlapped heavily, and project scaffolding is now handled by deno init rather than by pasted templates. If you installed any of the three individually, install deno instead.

1. Deno works like npm and bun - deno install reads package.json, deno add express installs from npm, node_modules and node: built-ins work. Migration is not a rewrite.
2. npm and JSR both work - use whichever has the package you need; JSR is a good default for new Deno-first code and the standard library (@std/*).
3. Built-in tools - deno fmt, deno lint, deno test, deno check replace prettier, eslint, jest, and tsc with no dependencies.
4. Permissions are the real difference - prefer scoped grants like --allow-net=example.com over -A.

This project uses Semantic Versioning. When contributing changes:

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

• 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

These skills follow the Agent Skills Specification.

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: npx skills

Works across Claude Code, Cursor, Copilot, and other skills-compatible agents:

# All skills
npx skills add denoland/skills

# Or just one
npx skills add denoland/skills --skill deno

Option 3: 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 ~/.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/

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/

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

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.

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

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

MIT License - see LICENSE