datastore-review

datastore-review is a skill for Claude Code from CodePhobiia/claude-roblox-game-studio. It costs 43 tokens per session (573 once invoked), scanned A, original, MIT.

A review command for checking Roblox DataStore and MemoryStore usage in a project. DataStore stores persistent player data, while MemoryStore provides temporary shared data between servers.

In plain words
What is it for?
Use it to audit player-data loading and saving, server shutdown handling, retries, migrations, autosaves, request budgets, leaderboards, and related Roblox service usage.
Why use it?
It looks for data-loss, security, reliability, and quota problems such as missing error handling, weak session locking, unsafe shutdown saves, and schema issues.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to audit player-data loading and saving, server shutdown handling, retries, migrations, autosaves, request budgets, leaderboards, and related Roblox service usage.

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Install with agentmods
npx agentmods add skills/codephobiia/claude-roblox-game-studio/datastore-review
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 datastore-review
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 datastore-review

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/codephobiia/claude-roblox-game-studio/datastore-review"><img src="https://agentmods.dev/badge/skills/codephobiia/claude-roblox-game-studio/datastore-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 573 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 $0.00043 $0.00573
Opus 5 $0.00022 $0.00287
Sonnet 5 $0.00009 $0.00115
Haiku 4.5 $0.00004 $0.00057

Measured 10d ago against content hash fd756119c03a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

datastore-review 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 10d 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/datastore-review/SKILL.md · 70 lines

How it starts

The opening of the file, as written. The whole thing — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/datastore-review — DataStore Audit

Delegate to: datastore-architect

Steps:

  1. Search for all DataStore usage: grep -rn "DataStoreService" src/
  2. Search for all MemoryStore usage: grep -rn "MemoryStoreService" src/
  3. Search for all BindToClose handlers: grep -rn "BindToClose" src/
  4. Search for PlayerAdded / PlayerRemoving: grep -rn "PlayerAdded\|PlayerRemoving" src/

Check each DataStore operation for:

Critical (must fix):

  • All GetAsync/SetAsync/UpdateAsync wrapped in pcall
  • Session locking implemented (acquire lock on join, release on leave)
  • BindToClose handler saves all player data with timeout
  • Player data keyed by UserId (not Name)
  • Schema includes version number
  • No synchronous DataStore calls in PlayerAdded without yielding protection

Important (should fix):

  • Auto-save interval implemented (recommended: every 5 minutes)
  • Save debouncing with dirty flag
  • Retry logic for failed operations (with exponential backoff)
  • Data migration functions for schema version upgrades
  • OrderedDataStore used appropriately (leaderboards, rankings)
  • Budget monitoring (not exceeding request limits)

Nice to have:

  • Data backup system (periodic full save to backup key)
  • Analytics on save failures
  • Admin tools for data inspection/correction

Output:

Generate a report with findings organized by severity:

# DataStore Review

## Scope
Files analyzed: X
DataStore references found: Y
MemoryStore references found: Z

## Critical Findings
1. **[filepath:line]**: [issue]
   - Impact: [data loss / duplication / exploit]
   - Fix: [specific code change]

## Important Findings
...

## Anti-Patterns Detected
...

## Recommended Architecture
[If no DataStore code exists yet, suggest the recommended architecture pattern:]
- ServerStorage/PlayerData/PlayerDataService.lua (main API)
- ServerStorage/PlayerData/SessionLock.lua (lock mechanism)
- ServerStorage/PlayerData/Schema.lua (current schema + migrations)
- ServerStorage/PlayerData/Serializer.lua (compress/decompress)

Read the full file on GitHub · 70 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. 10d ago First seen · 70 lines · 43 tokens per session scan A fd756119c03a

Subscribe to this mod's changes

datastore-review is a skill published in the GitHub repository CodePhobiia/claude-roblox-game-studio (9 stars, last pushed 4mo ago), licensed MIT. It adds 43 tokens to every session and 573 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 2026-08-31.