deno

deno is a skill for Claude Code, Codex from dhaupin/vant. It costs 8 tokens per session (332 once invoked), scanned A, original, MIT.

Instructions for using Deno, a JavaScript and TypeScript runtime that can run scripts, tests, and development tasks. It covers commands for starting projects, adding packages, formatting, linting, and setting permissions.

In plain words
What is it for?
Use it to initialize projects, run scripts and tests, add JSR or npm dependencies, execute tasks, format code, lint it, and grant required permissions.
Why use it?
It gives projects using Deno a consistent way to run code and tests while making access to files or networks explicit.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to initialize projects, run scripts and tests, add JSR or npm dependencies, execute tasks, format code, lint it, and grant required permissions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dhaupin/vant/vant-skill-deno
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add dhaupin/vant --skill vant-skill-deno
Clone the repo
git clone --depth 1 https://github.com/dhaupin/vant

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for deno

README.md
[![agentmods](https://agentmods.dev/badge/skills/dhaupin/vant/vant-skill-deno.svg)](https://agentmods.dev/skills/dhaupin/vant/vant-skill-deno)
Your own site
<a href="https://agentmods.dev/skills/dhaupin/vant/vant-skill-deno"><img src="https://agentmods.dev/badge/skills/dhaupin/vant/vant-skill-deno.svg" alt="Measured on agentmods" height="20"></a>
Per session 8 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 332 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00008 $0.00332
Opus 5 $0.00004 $0.00166
Sonnet 5 $0.00002 $0.00066
Haiku 4.5 $0.00001 $0.00033

Measured 7d ago against content hash 3f23a6608c74, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

deno scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

models/public/skills/vant-skill-deno/SKILL.md · 86 lines

What it actually says

Deno

Deno runtime operations.


When To Use

  • deno.json/deno.jsonc exists
  • deno.lock present
  • Scripts use deno

What To Do

1. Common Commands

Command What
deno init Initialize project
deno run Execute script
deno test Run tests
deno add Add dependency
deno task Run task
deno fmt Format code
deno lint Lint code

2. Add Dependencies

# JSR packages
deno add jsr:@std/path

# npm packages
deno add npm:react

3. Run with Permissions

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

# Test
deno test --allow-net --allow-read

4. Tasks

deno task dev    # Run dev task
deno task build # Run build task

Output

## Deno

| Command | Status |
|---------|--------|
| Run | [PASS/FAIL] |
| Test | [n] passed |

### Dependencies
- [list]

Role: Deno Developer
Input: deno scripts
Output: Working code

Secure JavaScript.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago First seen · 86 lines · 8 tokens per session scan A 3f23a6608c74

Subscribe to this mod's changes

deno is a skill published in the GitHub repository dhaupin/vant (9 stars, last pushed 7d ago), licensed MIT. It adds 8 tokens to every session and 332 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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