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-buildinggit 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-building)<a href="https://agentmods.dev/skills/tabooharmony/roblox-brain/roblox-building"><img src="https://agentmods.dev/badge/skills/tabooharmony/roblox-brain/roblox-building/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-building"><img src="https://agentmods.dev/badge/skills/tabooharmony/roblox-brain/roblox-building.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- 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 | $0.00023 | $0.00708 |
| Opus 5 | $0.00012 | $0.00354 |
| Sonnet 5 | $0.00005 | $0.00142 |
| Haiku 4.5 | $0.00002 | $0.00071 |
Grade A, and why
roblox-building 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 6d 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 — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Roblox Building
When to Load
Load for Roblox geometry, props, maps, routes, landmarks, or spatial onboarding via MCP or Luau. See references/full.md for complete patterns.
Quick Reference
MCP Build Mode
- Discover Studio, Workspace, and existing asset conventions.
- Name the build root, origin, coordinates, and asset manifest.
- Build in bounded phases and read back each asset, script, or geometry batch.
- Validate structure, capture a deliberate view, and playtest traversal.
Asset Choice
- Inspect and reuse a compatible existing asset first.
- For Creator Store or paid assets, surface source, creator, price, and licensing before insertion.
- Use
generate_procedural_modelfor blockouts,generate_meshfor textured props, andgenerate_materialfor surfaces. - For meshes, read back
MeshPart/SurfaceAppearance, bounds, collision fidelity, anchoring; preview quality levels. - Use image tools only for permitted inputs; wait for the returned job before dependent work.
- Runtime pixel/vertex editing (
EditableImage/EditableMesh) is budget- and permission-gated, non-replicating: see full reference. - Fall back to native Parts/CSG and report unsuitable generation.
Player Scale
Player ~5 studs | Door 4w×7h | Ceiling 10-14 | Counter 3.5-4 | Seat 1.5 | Path 6+
Spatial Rules
- Name dimensions; offset sub-parts from anchor CFrames, not guessed world coordinates.
- Snap to 0.125/0.25/0.5 studs.
- Build complex CSG near origin, then
PivotTothe destination. - Set anchoring, collision, shadows, color, and material explicitly.
Acceptance
Prop: named model, pivot, scale, bounds, materials, collision, anchoring, no loose parts, asset provenance. Map: root/origin, zones, landmarks, spawns/return paths, path widths, traversal, and bounds checks excluding Baseplate/Terrain/SpawnLocation. Evidence: structural readback plus screenshot when supported, console/runtime result when playtested.
Anti-Patterns
Guessing coordinates | unanchored or duplicate parts | hardcoded world positions | silent CSG failure | oversized batches | claims without readback
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.
- 6d ago Changed · +3 lines d1f809a7e4df
- 12d ago First seen · 54 lines · 23 tokens per session scan A 6b8f7700c561
roblox-building is a skill published in the GitHub repository TabooHarmony/roblox-brain (43 stars, last pushed 6d ago), licensed MIT. It adds 23 tokens to every session and 708 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.
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