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 TabooHarmony/roblox-brain --skill roblox-performancegit clone --depth 1 https://github.com/TabooHarmony/roblox-brainWrote 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/tabooharmony/roblox-brain/roblox-performance)<a href="https://agentmods.dev/skills/tabooharmony/roblox-brain/roblox-performance"><img src="https://agentmods.dev/badge/skills/tabooharmony/roblox-brain/roblox-performance/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/tabooharmony/roblox-brain/roblox-performance"><img src="https://agentmods.dev/badge/skills/tabooharmony/roblox-brain/roblox-performance.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk warn
- NVIDIA SkillSpector pass
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 | $0.00024 | $0.00699 |
| Opus 5 | $0.00012 | $0.00349 |
| Sonnet 5 | $0.00005 | $0.00140 |
| Haiku 4.5 | $0.00002 | $0.00070 |
Grade A, and why
roblox-performance 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 4d 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 — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Roblox Performance
When to Load
Use when profiling, diagnosing lag, or setting performance budgets. For code-level micro-optimizations (pooling, throttling, relevance filtering, lazy loading) load roblox-luau-patterns; this skill measures and tunes the engine.
Quick Reference
Profiling Tools
- MicroProfiler (Ctrl+F6): Per-frame breakdown: scripts, physics, rendering. Primary tool for finding what's slow.
- Developer Console (F9): Stats tab: memory, network, render stats. Server Stats for server-side metrics.
- Script Profiler (Ctrl+Alt+F5): Per-script CPU usage and heap allocations.
Performance Targets
| Metric | Starting target | Investigate at |
|---|---|---|
| Server heartbeat | < 16ms | > 33ms |
| Client FPS (desktop) | 60 | < 30 |
| Client FPS (mobile) | 45 | < 30 |
| Memory | device-specific | sustained growth |
"Expensive" means the profiler shows it on a hot frame path (raycasts, clones, large finds, replication-heavy writes). Throttle by judgment from measurements, not a universal number, and re-measure after shipping: profile before and after on representative devices and confirm the targeted metric moved without regressions. Micro-optimizations live in roblox-luau-patterns.
Parallel Luau
- Use Actors only after profiling identifies isolatable CPU work.
- Workers compute; synchronize before restricted DataModel writes.
- SharedTable and mutexes add coordination cost; they do not replace ownership boundaries.
Object Pooling
-- Pre-clone, reuse. get() returns a lease token; release() requires it,
-- so duplicate or foreign releases never re-list the object.
local obj, lease = pool:get()
-- ... use obj ...
pool:release(obj, lease)
Canonical pool code (token-lease ownership): roblox-luau-patterns.
StreamingEnabled Essentials
- On by default. Container-scoped: only Workspace descendants stream.
ModelStreamingBehavior = Improvedstreams non-BasePart descendants with their parent Model; Legacy streams only BaseParts. - Streamed-out = parented to nil, not destroyed. Luau refs persist if it streams back.
- Config (Studio): target defaults 1024, min 64; set
StreamingIntegrityMode; tune from data. - Gotcha:
FindFirstChild("DistantPart")returns nil if streamed out. Use WaitForChild with timeout.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 4d ago Changed · -3 lines 12f61c48f0c3
- 10d ago First seen · 62 lines · 24 tokens per session scan A c35bf6ab4a33
roblox-performance is a skill published in the GitHub repository TabooHarmony/roblox-brain (42 stars, last pushed 4d ago), licensed MIT. It adds 24 tokens to every session and 699 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 2026-08-30.
Other skills, from other repositories
beehave
Use when using the Beehave addon — pure-GDScript behavior trees with composites, decorators, leaves, a blackboard, and a visual runtime debugger.
godot-debugging
Use when debugging Godot projects — remote debugger, print techniques, signal tracing, common error patterns and fixes.
debug
Diagnose a game dev error or bug using GameCodex's debug guide.
console-get-logs
Retrieve Unity Editor logs from the MCP plugin's LogCollector, optionally filtered by log type or time window. Useful for debugging and monitoring Editor activity.
editor-application-get-state
Return the current state of UnityEditor.EditorApplication — playmode, paused state, compilation state, and related flags.
console-clear-logs
Clear the MCP log cache (used by 'console-get-logs') and the Unity Editor Console window. Useful for isolating logs to a specific action by clearing the slate first.