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three.ws: Skill for Claude Code

.agents/skills/okx-how-to-play/SKILL.md

okx-how-to-play is a skill for Claude Code from nirholas/three.ws. It costs 178 tokens per session (2,329 once invoked), scanned A, original, Apache-2.0.

An onboarding guide for Onchain OS, a set of tools for working with blockchain and decentralized-app data and actions. It is designed for people who are unsure where to start.

In plain words
What is it for?
Use it to learn what Onchain OS can do, understand how to begin, and choose a suitable workflow for exploring or using decentralized applications.
Why use it?
It turns a general question into a concrete first workflow, so newcomers do not need to know the available commands or tools in advance.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: installed under .agents/ (shared by several agents).

This is nirholas/three.ws's own configuration. It tells Claude Code how to work on three.ws itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything three.ws configures →

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is Read `../okx-agentic-wallet/_shared/preflight.md`. If that file does not exist, read `_shared/preflight.md` instead..

Part of the three-ws-core plugin — 49 skills shipped together

not rated 269repo +7 yesterday A scan SkillSpector: warn 178 tokens original Apache-2.0
View source ↗ nirholas/three.ws three.ws
Reuse

Borrowing it

Nothing to install: this file belongs to nirholas/three.ws. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/nirholas/three.ws/main/.agents/skills/okx-how-to-play/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/nirholas/three.ws

Made for: Claude Code.

Or install three-ws-core, the plugin that ships this one along with the rest of its 49 skills.

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 okx-how-to-play

README.md
[![agentmods](https://agentmods.dev/badge/skills/nirholas/three.ws/okx-how-to-play/github.svg)](https://agentmods.dev/skills/nirholas/three.ws/okx-how-to-play)
Your own site
<a href="https://agentmods.dev/skills/nirholas/three.ws/okx-how-to-play"><img src="https://agentmods.dev/badge/skills/nirholas/three.ws/okx-how-to-play/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 okx-how-to-play

Your own site · 80×15
<a href="https://agentmods.dev/skills/nirholas/three.ws/okx-how-to-play"><img src="https://agentmods.dev/badge/skills/nirholas/three.ws/okx-how-to-play.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 178 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,329 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 warn 7 Sept 2026
SkillSpector: 2 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Rogue Agent · line 42
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
  • medium Excessive Agency · line 133
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 $0.00178 $0.02329
Opus 5.5 $0.00071 $0.00932
Sonnet 5.5 $0.00036 $0.00466
Haiku 4.5 $0.00018 $0.00233

Measured 2mo ago against content hash e3cc2d0a22fc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

okx-how-to-play 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 2mo 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.

.agents/skills/okx-how-to-play/SKILL.md · 170 lines

How it starts

The opening of the file, as written. The whole thing — 170 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Onchain OS — How to Play (Entry Router)

The first-time / "I don't know what to do" entry point. Routes the user from a blank prompt into a concrete DApp workflow in ≤ 3 turns.

Instruction Priority

Tagged blocks indicate rule severity (higher wins on conflict):

  1. <NEVER> — Absolute prohibition.
  2. <MUST> — Mandatory step. Skipping breaks the flow.
  3. <SHOULD> — Best practice.

Pre-flight Checks

Authoring Pattern — Free Zone vs Fixed Zone

Most user-facing copy in this flow is split into two parts:

  • Free zone — the agent answers the user's actual question or acknowledgement first, in 1–5 sentences, contextually woven. No fixed copy. The user shouldn't feel like they hit a script.
  • Fixed zone — the canonical English template block (welcome banner, login options, API Key heads-up). At runtime:
    • Render all natural-language prose in the user's language.
    • Quoted reply words inside prose (e.g. "login") MUST translate with their sentence. Leaving an English quoted word inside otherwise-translated Chinese / Japanese / etc. prose is a translation bug — the quotes do NOT make the word a literal trigger.
    • Keep literal: emojis, {placeholders}, 1–N, code identifiers / commands / URLs, markdown structure.

This applies to: Welcome Banner, Login Method Choice, and API Key Login Step 1 heads-up.

Status Check

Read the full file on GitHub · 170 lines

Files

What ships with it

2 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. 2mo ago First seen · 170 lines · 178 tokens per session scan A e3cc2d0a22fc

Subscribe to this mod's changes

okx-how-to-play is a skill published in the GitHub repository nirholas/three.ws (269 stars, last pushed yesterday), licensed Apache-2.0. It adds 178 tokens to every session and 2,329 once invoked, about $0.0007 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.

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Related

okx-how-to-play compared with skills from other repositories

okx-how-to-play next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
okx-how-to-playnirholas/three.wsSkill269yesterdayApache-2.0A178Claude Code
evmNousResearch/hermes-agentSkill261kyesterdayMITA19Claude Code, Codex
building-pydantic-ai-agentspydantic/pydantic-aiSkill21kyesterdayMITA92Claude Code, Codex
mantis-threat-modelgoogle/mantisSkill2.7kyesterdayApache-2.0A59Claude Code, Codex
output-dev-workflow-functiongrowthxai/outputSkill4444d agoApache-2.0A31Claude Code
crypto-dataBlockRunAI/blockrun-mcpSkill389yesterdayMITA194Claude Code, Codex
rpcBlockRunAI/blockrun-mcpSkill389yesterdayMITA91Claude Code, Codex