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 agentmods add skills/erickow/robloxui-cli/luau-wally-developmentnpx skills add erickow/robloxui-cli --skill luau-wally-developmentgit clone --depth 1 https://github.com/erickow/robloxui-cliWrote 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/erickow/robloxui-cli/luau-wally-development)<a href="https://agentmods.dev/skills/erickow/robloxui-cli/luau-wally-development"><img src="https://agentmods.dev/badge/skills/erickow/robloxui-cli/luau-wally-development.svg" alt="Measured on agentmods" 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 | $0.00063 | $0.00569 |
| Opus 5 | $0.00032 | $0.00284 |
| Sonnet 5 | $0.00013 | $0.00114 |
| Haiku 4.5 | $0.00006 | $0.00057 |
Grade A, and why
luau-wally-development 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 3d 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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
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.
- 3d ago First seen · 51 lines · 63 tokens per session scan A 0e0b96a05f71
luau-wally-development is a skill published in the GitHub repository erickow/robloxui-cli (0 stars, last pushed 11d ago), with no licence file. It adds 63 tokens to every session and 569 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.
Other skills, from other repositories
roblox-best-practices
Framework-agnostic Roblox/Luau coding standards. Use when writing, reviewing, or refactoring any Luau code (Script, LocalScript, ModuleScript) in a Roblox project, or when the user asks to keep best practices in mind as standing guidance — enforces the VARIABLES/FUNCTIONS/INITIALIZATION layout, naming, performance…
roblox-studio
Build, inspect, repair, validate, and playtest Roblox Studio maps and Luau through the local bridge. Use for SceneSpecs, terrain, Studio edits, gameplay objects, visual checks, and Rojo output.
roblox-failure-archaeology
Use when a Roblox/Luau bug looks familiar, before re-deriving a fix for placement math, NPC pathfinding, spawning, animation lifecycles, or client tag-handlers, when a weird code pattern (Euler tables over the wire, PivotTo ordering, bounded tag polls, generation counters, provider-injected requires) needs explaining…
roblox-platform-reference
Use when a task hits Roblox platform behavior rather than project logic — a placed model's rotation comes out flipped 180 degrees, CFrame/Euler math (Angles vs fromEulerAnglesYXZ, left-handed basis), a client tag handler finds nil children, StreamingEnabled quirks, DataStore session locks, ProcessReceipt /…
roblox-proof-and-analysis-toolkit
Use when a claim needs proof, not a retry — a placed model faces the wrong way (CFrame/basis/Euler math), client and server disagree on an orientation, an economy or difficulty number needs a derived prediction before tuning, a ProcessReceipt path might double-grant or drop on crash, seeded generation should be…
roblox-architecture-contract
Use when writing or reviewing code in a firebit house-stack Roblox project and the system's shape matters — service/controller boot order, where a new service goes, require cycles, "attempt to require a module that is loading", profile data not replicating, client sees stale state, choosing action networking vs…