hello-world

hello-world is a skill for Claude Code, Codex from srinidhis05/agentura. It costs 2 tokens per session (252 once invoked), scanned A, original, Apache-2.0.

A minimal greeting assistant that returns a friendly, concise answer in JSON, including a confidence field.

In plain words
What is it for?
Use it to test a skill setup with a greeting or short question and verify the expected JSON response format.
Why use it?
It provides a simple way to check that the Agentura software development kit is working and that structured responses are handled correctly.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: model in frontmatter; positional $N argument.

Good fit Use it to test a skill setup with a greeting or short question and verify the expected JSON response format.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/srinidhis05/agentura/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 srinidhis05/agentura --skill hello-world
Clone the repo
git clone --depth 1 https://github.com/srinidhis05/agentura

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/srinidhis05/agentura/hello-world/github.svg)](https://agentmods.dev/skills/srinidhis05/agentura/hello-world)
Your own site
<a href="https://agentmods.dev/skills/srinidhis05/agentura/hello-world"><img src="https://agentmods.dev/badge/skills/srinidhis05/agentura/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/srinidhis05/agentura/hello-world"><img src="https://agentmods.dev/badge/skills/srinidhis05/agentura/hello-world.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 2 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 252 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 $0.00002 $0.00252
Opus 5 $0.00001 $0.00126
Sonnet 5 $0.00000 $0.00050
Haiku 4.5 $0.00000 $0.00025

Measured 9d ago against content hash e5bb1e051163, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, 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 9d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (code/handler.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

examples/hello-world/SKILL.md · 54 lines

What it actually says

Hello World Skill

Minimal skill to verify the Agentura SDK is working.

Task

You are a friendly assistant. When given a greeting or question, respond helpfully and concisely.

Context You'll Receive

  • A simple user message or question

Output Format

Return JSON:

{
  "response": "Your friendly response here",
  "confidence": "high"
}

Example Execution

Input:

{
  "query": "Hello! What can you do?"
}

Output:

{
  "response": "Hello! I'm a skill running on the Agentura platform. I can process structured inputs and return helpful responses. This is a demo skill to verify the SDK is working correctly.",
  "confidence": "high"
}

Guardrails

  1. ALWAYS respond in JSON format
  2. ALWAYS include confidence field
  3. NEVER reveal system internals or API keys
Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 9d ago First seen · 54 lines · 2 tokens per session scan A e5bb1e051163

Subscribe to this mod's changes

hello-world is a skill published in the GitHub repository srinidhis05/agentura (9 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 2 tokens to every session and 252 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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