deno

Deno secure JavaScript/TypeScript runtime. Use for modern JS backend.

7 stars

byG1Joshi

View on GitHub Installation ↓

Best use case

deno is best used when you need a repeatable AI agent workflow instead of a one-off prompt.

Deno secure JavaScript/TypeScript runtime. Use for modern JS backend.

Teams using deno 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

$curl -o ~/.claude/skills/deno/SKILL.md --create-dirs "https://raw.githubusercontent.com/G1Joshi/Agent-Skills/main/skills/frameworks/deno/SKILL.md"

Manual Installation

Download SKILL.md from GitHub
Place it in .claude/skills/deno/SKILL.md inside your project
Restart your AI agent — it will auto-discover the skill

How deno Compares

Feature / Agent	deno	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?

Deno secure JavaScript/TypeScript runtime. Use for modern JS backend.

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

# Deno

Deno v2.0 (2024/2025) focuses on **Node.js Compatibility**. It can now run most npm packages and `package.json` projects, removing the biggest barrier to entry.

## When to Use

- **Security**: Sandbox by default. No file/net access unless explicitly allowed.
- **All-in-One**: Built-in linter, formatter, test runner, bundler.
- **TypeScript**: Native support. No config needed.

## Core Concepts

### Permission Model

`deno run --allow-net --allow-read main.ts`.

### URL Imports (Legacy-ish)

`import ... from "https://deno.land/..."`. v2 supports npm specifiers too.

### Deno Deploy

The global edge network designed for Deno.

## Best Practices (2025)

**Do**:

- **Use `jsr`**: The new JavaScript Registry (superset of npm).
- **Use `deno serve`**: High-performance HTTP server.
- **Migrate Node apps**: Try running `deno run main.js` on existing Node projects.

**Don't**:

- **Don't rely heavily on `node_modules`**: Use native Deno/JSR patterns where possible for speed.

## References

- [Deno Documentation](https://deno.com/)