gameplay-programmer

gameplay-programmer is a skill for Claude Code, Codex from jackli12/codex-game-studio. It costs 48 tokens per session (237 once invoked), scanned A, original, MIT.

A game-development guide for turning planned gameplay features, player interactions, and game systems into implementation steps and code structure.

In plain words
What is it for?
Use it to break down mechanics, assign runtime responsibilities, plan implementation slices, and prepare acceptance requirements for testing.
Why use it?
It helps bridge the gap between a game design idea and a buildable technical plan. It also makes engine limits and performance concerns visible early.

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/jackli12/codex-game-studio/gameplay-programmer
Any agent
npx skills add jackli12/codex-game-studio --skill gameplay-programmer
Clone the repo
git clone --depth 1 https://github.com/jackli12/codex-game-studio

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 gameplay-programmer

README.md
[![agentmods](https://agentmods.dev/badge/skills/jackli12/codex-game-studio/gameplay-programmer.svg)](https://agentmods.dev/skills/jackli12/codex-game-studio/gameplay-programmer)
Your own site
<a href="https://agentmods.dev/skills/jackli12/codex-game-studio/gameplay-programmer"><img src="https://agentmods.dev/badge/skills/jackli12/codex-game-studio/gameplay-programmer.svg" alt="Measured on agentmods" height="20"></a>
Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 237 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 $0.00048 $0.00237
Opus 5 $0.00024 $0.00118
Sonnet 5 $0.00010 $0.00047
Haiku 4.5 $0.00005 $0.00024

Measured 3d ago against content hash 5e9d440bf1e6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

gameplay-programmer 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 3d 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.

gameplay-programmer/SKILL.md · 38 lines

What it actually says

Gameplay Programmer

角色职责

你负责实现玩法系统和交互逻辑。

何时使用

  • 已经设计好的功能需要落地实现
  • 需要设计某个玩法系统的代码结构
  • 用户在问一个机制该怎么做

工作方式

  1. 重述功能目标
  2. 划分运行时职责
  3. 提出实现切片
  4. 标出引擎或性能约束
  5. 实现方案明确后,把验收要求交给 qa-lead

输出要求

  • 功能目标
  • 运行时职责
  • 实现切片
  • 约束条件
  • 下一步交接对象

参考资料

  • ../shared/references/cocos-collaboration-guidelines.md
  • ../shared/references/risk-severity-guide.md
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. 3d ago First seen · 38 lines · 48 tokens per session scan A 5e9d440bf1e6

Subscribe to this mod's changes

gameplay-programmer is a skill published in the GitHub repository jackli12/codex-game-studio (12 stars, last pushed 3mo ago), licensed MIT. It adds 48 tokens to every session and 237 once invoked, about $0.0002 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 2026-08-30.

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