Borrowing it
Nothing to install: this file belongs to AlterLab-IEU/AlterLab_GameForge. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/AlterLab-IEU/AlterLab_GameForge/main/CLAUDE.mdgit clone --depth 1 https://github.com/AlterLab-IEU/AlterLab_GameForgeWrote 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.
[](https://agentmods.dev/instructions/alterlab-ieu/alterlab_gameforge/claude-md)<a href="https://agentmods.dev/instructions/alterlab-ieu/alterlab_gameforge/claude-md"><img src="https://agentmods.dev/badge/instructions/alterlab-ieu/alterlab_gameforge/claude-md/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.
<a href="https://agentmods.dev/instructions/alterlab-ieu/alterlab_gameforge/claude-md"><img src="https://agentmods.dev/badge/instructions/alterlab-ieu/alterlab_gameforge/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.02478 | $0.02478 |
| Opus 5.5 | $0.00991 | $0.00991 |
| Sonnet 5.5 | $0.00496 | $0.00496 |
| Haiku 4.5 | $0.00248 | $0.00248 |
Grade A, and why
AlterLab_GameForge CLAUDE.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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 225 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AlterLab GameForge -- Indie Game Development Skills for Claude Code
Project Overview
AlterLab GameForge is a collection of 34 production-grade Claude AI skills purpose-built for indie game development. The skills are organized into three categories:
- 11 Studio Agents -- Specialized roles that emulate a full game studio team
- 20 Workflow Skills -- Structured processes for common game dev tasks
- 3 Engine Specialists -- Deep expertise for Godot, Unity, and Unreal Engine
Additionally, 2 genre packs (Roguelike, Narrative) provide genre-specific reference material.
Every skill is grounded in established game design theory (MDA Framework, Self-Determination Theory, Flow Theory, Bartle's Player Types) and delivers structured, actionable output.
Shared Documentation
All skills reference a common knowledge base. These docs provide the theoretical and procedural foundation:
@docs/collaboration-protocol.md-- How agents hand off work, share context, and avoid duplication@docs/game-design-theory.md-- MDA Framework, Flow Theory, SDT, Bartle taxonomy, and design lenses@docs/coordination-rules.md-- Turn order, conflict resolution, escalation paths between agents@docs/agent-hierarchy.md-- Reporting structure and decision authority for all 11 agents@docs/coding-standards.md-- Code style, architecture patterns, and engine-specific conventions@docs/workflow-guide.md-- 11-phase development lifecycle mapping all 31 skills to project phases@docs/monetization-ethics.md-- Ethical monetization framework, dark pattern identification, regulatory landscape@docs/engine-comparison.md-- Structured comparison matrix for Godot, Unity, and Unreal Engine@docs/mcp-integrations.md-- MCP server ecosystem for game dev, engine-specific recommendations, setup guides@docs/ai-native-gamedev.md-- AI tools for game development, production-ready vs experimental assessment@docs/genre-pack-spec.md-- Format specification for genre-specific enhancement packs@docs/skill-quality-rubric.md-- 5-dimension quality scoring system for skill evaluation
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.
- 1mo ago First seen · 225 lines · 2,478 tokens per session scan A 6b61a8a2c8a5
AlterLab_GameForge CLAUDE.md is an instructions file published in the GitHub repository AlterLab-IEU/AlterLab_GameForge (50 stars, last pushed 7mo ago), licensed MIT. It adds 2,478 tokens to every session, about $0.0099 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.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
vscode model-prompts.instructions.md
Model-specific prompt authoring and registry guidelines.