prototype

prototype is a skill for Claude Code from CodePhobiia/claude-roblox-game-studio. It costs 28 tokens per session (686 once invoked), scanned A, original, MIT.

A workflow for building a small, temporary version of a Roblox game idea to test whether it is worth pursuing. The prototype stays separate from production code and includes a note explaining the idea and how to test it.

In plain words
What is it for?
Use it to define a hypothesis, set success criteria and a time limit, build only the necessary gameplay, and record the findings.
Why use it?
It reduces the time spent polishing an idea before knowing whether its central assumption is sound. The result is discarded or rewritten if the test supports moving forward.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to define a hypothesis, set success criteria and a time limit, build only the necessary gameplay, and record the findings.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/codephobiia/claude-roblox-game-studio/prototype
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.

Any agent
npx skills add CodePhobiia/claude-roblox-game-studio --skill prototype
Clone the repo
git clone --depth 1 https://github.com/CodePhobiia/claude-roblox-game-studio

Made for: Claude Code.

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 prototype

README.md
[![agentmods](https://agentmods.dev/badge/skills/codephobiia/claude-roblox-game-studio/prototype/github.svg)](https://agentmods.dev/skills/codephobiia/claude-roblox-game-studio/prototype)
Your own site
<a href="https://agentmods.dev/skills/codephobiia/claude-roblox-game-studio/prototype"><img src="https://agentmods.dev/badge/skills/codephobiia/claude-roblox-game-studio/prototype/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 prototype

Your own site · 80×15
<a href="https://agentmods.dev/skills/codephobiia/claude-roblox-game-studio/prototype"><img src="https://agentmods.dev/badge/skills/codephobiia/claude-roblox-game-studio/prototype.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 686 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 $0.00028 $0.00686
Opus 5 $0.00014 $0.00343
Sonnet 5 $0.00006 $0.00137
Haiku 4.5 $0.00003 $0.00069

Measured 9d ago against content hash 98cc3884a6f2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

prototype 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.

.claude/skills/prototype/SKILL.md · 98 lines

How it starts

The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/prototype — Rapid Prototyping Workflow

Delegate to: luau-gameplay-programmer or luau-systems-programmer (depending on scope)

Purpose

Prototypes are throwaway code to test an idea quickly. They are NOT production code.

Rules

  • Prototypes live in prototypes/<prototype-name>/
  • Prototypes NEVER import from src/
  • Prototype code does NOT need to meet production standards
  • Prototypes require a README.md explaining the hypothesis
  • Prototypes are NOT graduated directly to src/ — if the idea is good, rewrite cleanly

Steps

1. Define the Hypothesis

Ask the user:

  • "What are we testing?"
  • "What's the question this prototype answers?"
  • "What would 'success' look like?"
  • "What's the time budget?" (default: 2-4 hours)

2. Scope Ruthlessly

  • Only build what's needed to test the hypothesis
  • Skip: polished UI, data persistence, multiplayer (unless core to hypothesis)
  • Focus: the thing that's being questioned

3. Set Up Prototype Directory

prototypes/
└── <prototype-name>/
    ├── README.md        # Hypothesis, how to run, findings
    ├── src/             # Prototype Luau files
    └── assets/          # Any placeholder assets

4. Build the Minimum

Write code that answers the question. Do NOT:

  • Add type annotations (unless they help)
  • Wrap in pcall (unless necessary for the question)
  • Write tests
  • Worry about cleanup
  • Optimize performance

DO:

  • Use clear variable names (so future-you understands)
  • Comment the KEY decisions
  • Make it runnable (Rojo or manual Studio import)

5. Document Findings

After running, update the README:

# Prototype: [Name]

## Hypothesis
[What we were testing]

## How to Run
1. [Setup steps]
2. [Run steps]

## What We Learned
- [Finding 1]
- [Finding 2]
- [Unexpected result]

## Go / No-Go
**Verdict**: [Good idea / bad idea / needs more research]

## If Go, Next Steps
1. [How to translate this into production]
2. [What specialists are needed]
3. [What systems it affects]

## If No-Go
- [Why it didn't work]
- [Alternative approaches to consider]

Read the full file on GitHub · 98 lines

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 · 98 lines · 28 tokens per session scan A 98cc3884a6f2

Subscribe to this mod's changes

prototype is a skill published in the GitHub repository CodePhobiia/claude-roblox-game-studio (9 stars, last pushed 4mo ago), licensed MIT. It adds 28 tokens to every session and 686 once invoked, about $0.0001 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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