hello-world

hello-world is a skill for Claude Code, Codex from luongnv89/asm. It costs 19 tokens per session (102 once invoked), scanned A, original, MIT.

A minimal test skill that greets the user with a fixed message and asks how it can help. It is also an example of the ASM publishing workflow.

In plain words
What is it for?
Use it to verify the skill system or demonstrate the ASM publishing process.
Why use it?
It provides a small, predictable way to test whether a skill can be invoked and published correctly.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Claude Code.

Good fit Use it to verify the skill system or demonstrate the ASM publishing process.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/luongnv89/asm/hello-world
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 luongnv89/asm --skill hello-world
Clone the repo
git clone --depth 1 https://github.com/luongnv89/asm

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 hello-world

README.md
[![agentmods](https://agentmods.dev/badge/skills/luongnv89/asm/hello-world/github.svg)](https://agentmods.dev/skills/luongnv89/asm/hello-world)
Your own site
<a href="https://agentmods.dev/skills/luongnv89/asm/hello-world"><img src="https://agentmods.dev/badge/skills/luongnv89/asm/hello-world/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for hello-world

Your own site · 80×15
<a href="https://agentmods.dev/skills/luongnv89/asm/hello-world"><img src="https://agentmods.dev/badge/skills/luongnv89/asm/hello-world.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 102 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00019 $0.00102
Opus 5.5 $0.00008 $0.00041
Sonnet 5.5 $0.00004 $0.00020
Haiku 4.5 $0.00002 $0.00010

Measured 1mo ago against content hash f8a9f835fee3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

hello-world 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 1mo 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.

skills/hello-world/SKILL.md · 16 lines

What it actually says

Hello World

You are a friendly assistant. When invoked, greet the user warmly and ask how you can help them today.

Say: "Hello! I am the hello-world skill. How can I help you today?"

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. 1mo ago First seen · 16 lines · 19 tokens per session scan A f8a9f835fee3

Subscribe to this mod's changes

hello-world is a skill published in the GitHub repository luongnv89/asm (956 stars, last pushed today), licensed MIT. It adds 19 tokens to every session and 102 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-30.

Related

Other skills, from other repositories

sentry-setup-ai-monitoring

Setup Sentry AI Agent Monitoring in any project. Use this when asked to add AI monitoring, track LLM calls, monitor AI agents, or instrument OpenAI/Anthropic/Vercel AI/LangChain/Google GenAI. Automatically detects installed AI SDKs and configures the appropriate Sentry integration.

troykelly/claude-skills · 70 tokens

Skill Development

This skill should be used when the user wants to "create a skill", "add a skill to plugin", "write a new skill", "improve skill description", "organize skill content", or needs guidance on skill structure, progressive disclosure, or skill development best practices for Claude Code plugins.

troykelly/claude-skills · 63 tokens

Hook Development

This skill should be used when the user asks to "create a hook", "add a PreToolUse/PostToolUse/Stop hook", "validate tool use", "implement prompt-based hooks", "use ${CLAUDEPLUGINROOT}", "set up event-driven automation", "block dangerous commands", or mentions hook events (PreToolUse, PostToolUse, Stop, SubagentStop…

troykelly/claude-skills · 117 tokens

sentry-setup-metrics

Setup Sentry Metrics in any project. Use this when asked to add Sentry metrics, track custom metrics, setup counters/gauges/distributions, or instrument application performance metrics. Supports JavaScript, TypeScript, Python, React, Next.js, and Node.js.

troykelly/claude-skills · 61 tokens

sentry-setup-tracing

Setup Sentry Tracing (Performance Monitoring) in any project. Use this when asked to add performance monitoring, enable tracing, track transactions/spans, or instrument application performance. Supports JavaScript, TypeScript, Python, Ruby, React, Next.js, and Node.js.

troykelly/claude-skills · 62 tokens

autonomous-orchestration

Use when user requests autonomous operation across multiple issues. Orchestrates parallel workers using Task tool, monitors with TaskOutput, handles SLEEP/WAKE cycles, and works until scope is complete without user intervention.

troykelly/claude-skills · 48 tokens