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roblox-security-economy

roblox-security-economy is a skill for Claude Code, Codex from AshExplained/roblox-skills. It costs 51 tokens per session (545 once invoked), scanned A, original, MIT.

Guidance for building and reviewing Roblox game systems that handle valuable player data, such as currency, items, purchases, and trades.

In plain words
What is it for?
Use it for currencies, inventories, trading, purchases, rewards, Roblox DataStores, receipt handling, and checking requests sent by the game client.
Why use it?
It helps prevent cheating, duplicated items, invalid rewards, and lost purchases by keeping important decisions and saved data on the game server.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

not rated 6repo 2mo ago A scan 51 tokens original MIT

Good fit Use it for currencies, inventories, trading, purchases, rewards, Roblox DataStores, receipt handling, and checking requests sent by the game client.

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Install with agentmods
npx agentmods add skills/ashexplained/roblox-skills/roblox-security-economy
View source ↗ AshExplained/roblox-skills
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 AshExplained/roblox-skills --skill roblox-security-economy
Clone the repo
git clone --depth 1 https://github.com/AshExplained/roblox-skills

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 roblox-security-economy

README.md
[![agentmods](https://agentmods.dev/badge/skills/ashexplained/roblox-skills/roblox-security-economy/github.svg)](https://agentmods.dev/skills/ashexplained/roblox-skills/roblox-security-economy)
Your own site
<a href="https://agentmods.dev/skills/ashexplained/roblox-skills/roblox-security-economy"><img src="https://agentmods.dev/badge/skills/ashexplained/roblox-skills/roblox-security-economy/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 roblox-security-economy

Your own site · 80×15
<a href="https://agentmods.dev/skills/ashexplained/roblox-skills/roblox-security-economy"><img src="https://agentmods.dev/badge/skills/ashexplained/roblox-skills/roblox-security-economy.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 545 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 $0.00051 $0.00545
Opus 5 $0.00026 $0.00272
Sonnet 5 $0.00010 $0.00109
Haiku 4.5 $0.00005 $0.00055

Measured 11d ago against content hash 5858444125b2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

roblox-security-economy 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 11d 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.

roblox-security-economy/SKILL.md · 69 lines

How it starts

The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Roblox Security Economy

Goal

Protect valuable game state while keeping the player loop fair. Anything that grants, spends, trades, saves, or purchases value must be server-authoritative.

High-Risk Surfaces

  • Currency and premium currency.
  • Inventory, pets, skins, tools, boosts, and quest rewards.
  • Trading, gifting, crafting, upgrades, prestige, and loot rolls.
  • Developer product receipts and game pass checks.
  • Daily rewards, streaks, event rewards, and group rewards.
  • Client remotes that request grants, damage, teleport, placement, or progression.

Server Authority Rules

  • Calculate rewards on the server.
  • Validate player eligibility on the server.
  • Store canonical balances and inventory on the server.
  • Treat client UI as display and intent only.
  • Use idempotency for purchases and valuable grants.
  • Reject malformed, replayed, impossible, or too-frequent remote requests.

DataStore And Receipt Patterns

  • Save compact canonical state, not UI state.
  • Use versioned data schemas and migration guards.
  • Queue or debounce saves during active sessions.
  • Bind saves to player leaving and server shutdown paths.
  • For developer products, grant through receipt processing and record processed purchase IDs before considering the transaction complete.

Trading And Gifting

  • Use server-owned trade sessions.
  • Lock offered items while a trade is pending.
  • Require both parties to confirm the exact final offer.
  • Revalidate ownership immediately before commit.
  • Commit atomically from server state where possible.
  • Log valuable trades and grant paths for later investigation.

MCP Review Workflow

  1. Use script_grep for remotes, currency names, DataStore usage, receipt handlers, and grant functions.
  2. Read every script that touches value with script_read.
  3. Inspect relevant instances with search_game_tree and inspect_instance.
  4. Patch with multi_edit only after mapping source-to-sink flow.
  5. Playtest purchase-free paths and console errors with start_stop_play and get_console_output.

Read the full file on GitHub · 69 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. 11d ago First seen · 69 lines · 51 tokens per session scan A 5858444125b2

Subscribe to this mod's changes

roblox-security-economy is a skill published in the GitHub repository AshExplained/roblox-skills (6 stars, last pushed 2mo ago), licensed MIT. It adds 51 tokens to every session and 545 once invoked, about $0.0003 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.

Claude CodeGame developmentSecurityai-agentsanthropicclaudeclaude-skillsgame-development
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