tiny-world-builder: Skill for Codex

.codex/skills/tinyworld-runtime-state/SKILL.md

tinyworld-runtime-state is a skill for Codex from jasonkneen/tiny-world-builder. It costs 63 tokens per session (3,670 once invoked), scanned A, original, AGPL-3.0.

Instructions for changing TinyWorld settings that are saved for later use, such as audio, camera position, panel locations, and feature switches.

In plain words
What is it for?
Adding or changing default settings and the in-app process that saves them in the project’s defaults file.
Why use it?
It helps prevent saved settings from being stored incorrectly or lost between sessions.

Skill for Codex

Written for Codex: installed under .codex/.

This is jasonkneen/tiny-world-builder's own configuration. It tells Codex how to work on tiny-world-builder 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 tiny-world-builder configures →

About the project

Tiny World Builder is a browser-based 3D voxel editor for creating, sculpting, exploring, saving, remixing, exporting, and sharing small block-based worlds. It is used by people who want to build terrain and scenes with objects such as homes, paths, crops, and animals. Its catalogue add-ons support work with the editor.

jasonkneen/tiny-world-builder · 1,621 stars · on GitHub · tinyworld.build

Reuse

Borrowing it

Nothing to install: this file belongs to jasonkneen/tiny-world-builder. 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/jasonkneen/tiny-world-builder/main/.codex/skills/tinyworld-runtime-state/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/jasonkneen/tiny-world-builder

Made for: 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 tinyworld-runtime-state

README.md
[![agentmods](https://agentmods.dev/badge/skills/jasonkneen/tiny-world-builder/tinyworld-runtime-state/github.svg)](https://agentmods.dev/skills/jasonkneen/tiny-world-builder/tinyworld-runtime-state)
Your own site
<a href="https://agentmods.dev/skills/jasonkneen/tiny-world-builder/tinyworld-runtime-state"><img src="https://agentmods.dev/badge/skills/jasonkneen/tiny-world-builder/tinyworld-runtime-state/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 tinyworld-runtime-state

Your own site · 80×15
<a href="https://agentmods.dev/skills/jasonkneen/tiny-world-builder/tinyworld-runtime-state"><img src="https://agentmods.dev/badge/skills/jasonkneen/tiny-world-builder/tinyworld-runtime-state.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,670 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 high

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 →

  • high YARA Match · line 3
    YARA rule matched a hack tool or exploit indicator (offensive tools, reconnaissance, privilege escalation, or exploit frameworks).
    Fix: Remove offensive tool references and exploit code. Legitimate agent skills should not contain penetration testing tools, exploit frameworks, or reconnaissance utilities.
  • high Prompt Injection · line 238
    Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
    Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
How audits are shown
Origin unknown 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 $0.00063 $0.03670
Opus 5.5 $0.00025 $0.01468
Sonnet 5.5 $0.00013 $0.00734
Haiku 4.5 $0.00006 $0.00367

Measured 2mo ago against content hash b6806654ee66, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tinyworld-runtime-state 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.

.codex/skills/tinyworld-runtime-state/SKILL.md · 285 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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 · 285 lines · 63 tokens per session scan A b6806654ee66

Subscribe to this mod's changes

tinyworld-runtime-state is a skill published in the GitHub repository jasonkneen/tiny-world-builder (1,621 stars, last pushed yesterday), licensed AGPL-3.0. It adds 63 tokens to every session and 3,670 once invoked, about $0.0003 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

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tinyworld-runtime-state next to 6 skills from other repositories
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tinyworld-runtime-statejasonkneen/tiny-world-builderSkill1.6kyesterdayAGPL-3.0A63Codex
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mc-addon-setupguguzea/MC-AI-Coding-Assistant-ToolSkill132yesterdaynoneA35Claude Code, Codex
mc-bedrock-block-itemguguzea/MC-AI-Coding-Assistant-ToolSkill132yesterdaynoneA30Claude Code, Codex