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skills: Instructions file for Codex

AGENTS.md

skills AGENTS.md is an instructions file for Codex, OpenCode from shipshitgames/skills. It costs 410 tokens per session, scanned A, original, MIT.

Repository instructions for maintaining agent skills used to build 3D browser games with Claude Code and Codex. They describe the repository layout, shared instructions, naming rules, and required skill standards.

In plain words
What is it for?
Adding or editing game-development skills, following the repository's shared conventions, and checking that published skills meet the required format.
Why use it?
They help contributors keep game-development guidance consistent across coding agents and avoid conflicting copies or invalid skill metadata.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions CLAUDE.md; mentions Claude Code; mentions AGENTS.md.

This is shipshitgames/skills's own configuration. It tells Codex and OpenCode how to work on skills 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 skills configures →

not rated 6repo 20d ago A scan 410 tokens original MIT
View source ↗ shipshitgames/skills
Reuse

Borrowing it

Nothing to install: this file belongs to shipshitgames/skills. 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/shipshitgames/skills/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/shipshitgames/skills

Made for: Codex, OpenCode.

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Per session 410 This file is loaded in full into every session.
When invoked 410 The same file — it is already loaded in full.
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 $0.00410 $0.00410
Opus 5.5 $0.00164 $0.00164
Sonnet 5.5 $0.00082 $0.00082
Haiku 4.5 $0.00041 $0.00041

Measured 2mo ago against content hash acdc3e482d2d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skills AGENTS.md 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.md · 34 lines

What it actually says

Ship Shit Games — Skills — Agent Instructions

This is the shipshitgames/skills repo: AI agent skills for vibe-coding 3D browser games with Claude Code + Codex. Battle-tested live on the shipshitshow YouTube channel.

Repo Structure

  • skills/ — the published game-dev skills (SKILL.md + optional reference/)
  • .agents/ — repo operating system (memory, meta-skills, system docs, sessions)
  • .claude/, .codex/ — symlinks into .agents/ (memory + skills)

Cross-Agent Bootstrap

  • Claude Code reads CLAUDE.md, which delegates to this file.
  • Codex and other coding agents should follow this AGENTS.md.
  • Cursor uses .cursorignore to keep generated files, lockfiles, and secrets out of indexed context.
  • Keep durable repo instructions here so all agents share one source of truth.

Rules

  • Follow the Agent Skills spec: .agents/SYSTEM/SKILL-STANDARDS.md
  • name must match the directory; description states WHAT + WHEN (front-load the use case)
  • version/tags go inside the metadata: block as quoted strings, never top-level
  • No auto_activate, auto_trigger, or risk fields
  • Every skill teaches the @shipshitgames/engine conventions (imperative Three.js + the GameContext/GameSystems registry), grounded in the canonical games/scourge-survivors
  • Conventional commits (feat:, fix:, refactor:, chore:); never commit secrets

Before editing skills

  1. Read the SKILL.md you'll modify
  2. Read .agents/memory/MEMORY.md for repo decisions + the engine canon
  3. Find a sibling skill and match its patterns
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 · 34 lines · 410 tokens per session scan A acdc3e482d2d

Subscribe to this mod's changes

skills AGENTS.md is an instructions file published in the GitHub repository shipshitgames/skills (6 stars, last pushed 20d ago), licensed MIT. It adds 410 tokens to every session, about $0.0016 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 2026-08-31.

Game development
Related

skills AGENTS.md compared with instructions from other repositories

skills AGENTS.md next to 6 instructions from other repositories
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skills AGENTS.mdshipshitgames/skillsInstructions file620d agoMITA410Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143kyesterdayMITA7,461Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchainInstructions file149ktodayMITA4,680Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195ktodayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file275k2d agoMITA4,313Codex, OpenCode