wave

wave is a skill for Claude Code, Codex from nirholas/three.ws. It costs 0 tokens per session (302 once invoked), scanned A, original, Apache-2.0.

A small example skill that makes an agent wave and speak a greeting.

In plain words
What is it for?
It helps demonstrate a minimal skill, configurable greetings, gestures, text-to-speech, and installing a skill on an agent.
Why use it?
It provides a simple working pattern for learning how an agent skill is structured and how it calls built-in actions and speech.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/nirholas/three.ws/wave
Any agent
npx skills add nirholas/three.ws --skill wave
Clone the repo
git clone --depth 1 https://github.com/nirholas/three.ws

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 wave

README.md
[![agentmods](https://agentmods.dev/badge/skills/nirholas/three.ws/wave.svg)](https://agentmods.dev/skills/nirholas/three.ws/wave)
Your own site
<a href="https://agentmods.dev/skills/nirholas/three.ws/wave"><img src="https://agentmods.dev/badge/skills/nirholas/three.ws/wave.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 302 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.00302
Opus 5 $0.00000 $0.00151
Sonnet 5 $0.00000 $0.00060
Haiku 4.5 $0.00000 $0.00030

Measured yesterday against content hash bfff309987bf, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

wave 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 yesterday.

The scan reads SKILL.md. This mod also ships 1 executable file (handlers.js), 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/skills/wave/SKILL.md · 38 lines

What it actually says

wave

The starter skill. One tool, ten lines of handler: it plays the built-in wave gesture, then speaks a greeting. Referenced by examples/coach-leo/manifest.json and walked through in the skills guide.

Tool Use it for
waveAndGreet Wave + spoken greeting in one call

Why it exists

Every skill bundle has the same four files (manifest.json, tools.json, handlers.js, SKILL.md). This one is intentionally minimal so you can copy the directory, rename the tool, and have a working custom skill in minutes. The handler shows the two context calls most skills need:

await ctx.call('wave', {});   // dispatch any built-in or skill tool
await ctx.speak('Hello!');    // TTS through the agent's configured voice

Config

manifest.config.greeting sets the default line. Callers can override it per call with the greeting argument.

Try it

Load Coach Leo (examples/coach-leo/) and ask him to say hi, or install the skill on any agent and call the tool directly:

const el = document.querySelector('agent-3d');
await el.installSkill('/examples/skills/wave/');
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. yesterday First seen · 38 lines · 0 tokens per session scan A bfff309987bf

Subscribe to this mod's changes

wave is a skill published in the GitHub repository nirholas/three.ws (110 stars, last pushed today), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 302 tokens. 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 2026-09-03.

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