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.
npx skills add CodePhobiia/claude-roblox-game-studio --skill perf-profilegit clone --depth 1 https://github.com/CodePhobiia/claude-roblox-game-studioWrote 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/skills/codephobiia/claude-roblox-game-studio/perf-profile)<a href="https://agentmods.dev/skills/codephobiia/claude-roblox-game-studio/perf-profile"><img src="https://agentmods.dev/badge/skills/codephobiia/claude-roblox-game-studio/perf-profile/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/skills/codephobiia/claude-roblox-game-studio/perf-profile"><img src="https://agentmods.dev/badge/skills/codephobiia/claude-roblox-game-studio/perf-profile.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 | $0.00030 | $0.00825 |
| Opus 5 | $0.00015 | $0.00413 |
| Sonnet 5 | $0.00006 | $0.00165 |
| Haiku 4.5 | $0.00003 | $0.00082 |
Grade A, and why
perf-profile 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.
How it starts
The opening of the file, as written. The whole thing — 134 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/perf-profile — Performance Profiling Guide
Delegate to: performance-analyst
When to Use
- Game feels laggy on mobile
- Server frame time is high
- Memory usage growing over session
- Network bandwidth high
- Any specific performance concern reported by users
Steps
1. Define the Problem
Ask:
- "What's the symptom?" (FPS drop, memory growth, lag spike, high network)
- "When does it happen?" (always, combat, crowded servers, specific action)
- "What devices?" (mobile, PC, console, specific model)
- "What was the baseline?" (was this working before a change?)
2. Pick the Right Tool
MicroProfiler (primary tool)
- Server: Ctrl+F6 in Studio
- Client: Ctrl+Alt+F6 during playtest
- Shows per-frame breakdown — find what's eating the frame
Developer Console (F9)
- Stats tab for general metrics
- Log tab for errors
Script Profiler (Ctrl+Alt+F5)
- Per-script CPU usage
- Heap usage per script
Network Tab
- Bandwidth breakdown per remote
3. Common Server Bottlenecks
Heartbeat Time > 33ms
Check:
- Scripts in heavy loops over many instances
- DataStore calls not yielding
- Synchronous operations that should be async
Memory Growth
Check:
- Tables accumulating without cleanup
- Connections not disconnected
- Instances created without Destroy()
DataStore Budget Exhausted
Check:
- Save frequency too high
- Not debouncing saves
- Retries running too often on failure
4. Common Client Bottlenecks
FPS Drop on Mobile
Check:
- Transparency overdraw (stacked transparent parts)
- Particle rates too high
- Dynamic lights > 8 visible
- Post-processing stack (Bloom, DepthOfField)
- Part count in visible area
Lag Spikes
Check:
- Tweens starting and stopping (allocations)
- Large table creations per frame
- Heavy operations in Heartbeat
Memory Growth (Client)
Check:
- UI connections not cleaned up on PlayerGui destruction
- Image/sound caching without eviction
- Accumulating local state
5. Profiling Walkthrough
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.
- 9d ago First seen · 134 lines · 30 tokens per session scan A 3e7c3e071735
perf-profile is a skill published in the GitHub repository CodePhobiia/claude-roblox-game-studio (9 stars, last pushed 4mo ago), licensed MIT. It adds 30 tokens to every session and 825 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 2026-09-03.
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