prototype

prototype is a skill for Claude Code, Codex from RamonBedin/mcp-game-deck. It costs 24 tokens per session (336 once invoked), scanned A, original, MIT.

A rapid Unity prototyping workflow for testing a gameplay mechanic or technical idea with temporary code. A prototype is a quick experiment, not production-ready software.

In plain words
What is it for?
Use it to build a throwaway experiment, capture results, decide whether to proceed, change direction, or stop, and record the next steps.
Why use it?
It lets you compare a hypothesis with actual behavior before spending time on polished implementation, documentation, and tests.

Skill for Claude CodeCodex

Part of the mcp-game-deck plugin — 24 skills, 10 agents shipped together

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/ramonbedin/mcp-game-deck/prototype
Any agent
npx skills add RamonBedin/mcp-game-deck --skill prototype
Clone the repo
git clone --depth 1 https://github.com/RamonBedin/mcp-game-deck

Made for: Claude Code, Codex.

Or install mcp-game-deck, the plugin that ships this one along with the rest of its 24 skills, 10 agents.

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/ramonbedin/mcp-game-deck/prototype.svg)](https://agentmods.dev/skills/ramonbedin/mcp-game-deck/prototype)
Your own site
<a href="https://agentmods.dev/skills/ramonbedin/mcp-game-deck/prototype"><img src="https://agentmods.dev/badge/skills/ramonbedin/mcp-game-deck/prototype.svg" alt="Measured on agentmods" height="20"></a>
Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 336 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 $0.00024 $0.00336
Opus 5 $0.00012 $0.00168
Sonnet 5 $0.00005 $0.00067
Haiku 4.5 $0.00002 $0.00034

Measured 3d ago against content hash da79808b4c7e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 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.

Plugin~/skills/prototype/SKILL.md · 45 lines

What it actually says

When this skill is invoked:

  1. Define hypothesis: What are we testing? What does success look like?

  2. Rapid implementation (throwaway code, skip normal standards):

    • Create scripts in a Prototypes/ folder
    • Use MCP tools to set up scene quickly (batch-execute, prefab-instantiate)
    • Use ScriptableObjects for quick config via scriptableobject-create/scriptableobject-modify
    • Skip documentation, skip tests, skip polish
  3. Validate:

    • Use screenshot-camera to capture results
    • Use profiler-status/profiler-extended if performance is part of the hypothesis
    • Compare expected vs actual behavior
  4. Generate prototype report:

## Prototype Report: [Name]

### Hypothesis
[What we were testing]

### Approach
[How we tested it — scripts created, MCP tools used]

### Results
[What happened — screenshots, profiler data, observations]

### Verdict: [PROCEED / PIVOT / KILL]

### Next Steps
[If PROCEED: what needs production-quality implementation]
[If PIVOT: what alternative to try]
[If KILL: why and what we learned]
  1. Cleanup note: Prototype code is disposable. Do NOT merge into production.
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 · 45 lines · 24 tokens per session scan A da79808b4c7e

Subscribe to this mod's changes

prototype is a skill published in the GitHub repository RamonBedin/mcp-game-deck (6 stars, last pushed 2mo ago), licensed MIT. It adds 24 tokens to every session and 336 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 2026-08-31.