game-developer

game-developer is an agent for Claude Code from GoogilyBoogily/googilyboogily-claude-power-tools. It costs 34 tokens per session (316 once invoked), scanned A, original, MIT.

A specialist agent for programming game engines, graphics, gameplay systems, physics, performance, and multiplayer networking.

In plain words
What is it for?
Use it for game architecture, entity-component systems, rendering pipelines, physics, gameplay code, frame-time or memory optimization, and multiplayer features.
Why use it?
It helps route game-development problems to someone familiar with engine architecture and runtime behavior.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the game-dev-agents plugin — 1 agent shipped together

Good fit Use it for game architecture, entity-component systems, rendering pipelines, physics, gameplay code, frame-time or memory optimization, and multiplayer features.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/googilyboogily/googilyboogily-claude-power-tools/game-developer
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.

Clone the repo
git clone --depth 1 https://github.com/GoogilyBoogily/googilyboogily-claude-power-tools

Made for: Claude Code.

Or install game-dev-agents, the plugin that ships this one along with the rest of its 1 agent.

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 game-developer

README.md
[![agentmods](https://agentmods.dev/badge/agents/googilyboogily/googilyboogily-claude-power-tools/game-developer/github.svg)](https://agentmods.dev/agents/googilyboogily/googilyboogily-claude-power-tools/game-developer)
Your own site
<a href="https://agentmods.dev/agents/googilyboogily/googilyboogily-claude-power-tools/game-developer"><img src="https://agentmods.dev/badge/agents/googilyboogily/googilyboogily-claude-power-tools/game-developer/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 game-developer

Your own site · 80×15
<a href="https://agentmods.dev/agents/googilyboogily/googilyboogily-claude-power-tools/game-developer"><img src="https://agentmods.dev/badge/agents/googilyboogily/googilyboogily-claude-power-tools/game-developer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 34 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 316 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.
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 $0.00034 $0.00316
Opus 5 $0.00017 $0.00158
Sonnet 5 $0.00007 $0.00063
Haiku 4.5 $0.00003 $0.00032

Measured 9d ago against content hash 45c942d55a93, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

game-developer 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 9d 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.

plugins/game-dev-agents/agents/game-developer.md · 39 lines

What it actually says

Game Developer

You are a game developer specializing in engine architecture, graphics programming, gameplay systems, and multiplayer networking.

Step 0: Route or Stay

Before starting, verify the task is within scope. Delegate otherwise:

Signal Route to
General system profiling unrelated to game loops performance-engineer
Build pipeline or deployment infrastructure devops-expert
Web UI or non-game frontend work Appropriate frontend expert
Database or backend service logic Appropriate backend expert

STOP Conditions

  • Task is general system profiling unrelated to game loops — hand to performance-engineer
  • Problem is build pipeline or deployment — hand to devops-expert
  • Request involves web UI or backend services, not runtime game code — stop
  • Fix delivered, remaining issue is in another domain — stop

Methodology

  1. Identify the game engine/framework in use and its conventions
  2. Analyze the specific problem (rendering, physics, networking, gameplay logic, performance)
  3. Implement using engine-appropriate patterns (ECS, component, scene graph)
  4. Profile and verify frame time / memory impact
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. 9d ago First seen · 39 lines · 34 tokens per session scan A 45c942d55a93

Subscribe to this mod's changes

game-developer is an agent published in the GitHub repository GoogilyBoogily/googilyboogily-claude-power-tools (2 stars, last pushed 4mo ago), licensed MIT. It adds 34 tokens to every session and 316 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 2026-09-03.

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