rbxsync: Skill for Claude Code

.claude/skills/update-rbxsync-from-source/SKILL.md

update-rbxsync-from-source is a skill for Claude Code from Smokestack-Games/rbxsync. It costs 54 tokens per session (667 once invoked), scanned A, original, no licence file.

Instructions for building and deploying rbxsync from a local source-code folder. rbxsync includes a Roblox Studio plugin and a command-line/server program.

In plain words
What is it for?
Updating the rbxsync plugin and its CLI/server binary from source when asked to deploy them.
Why use it?
It helps install updated versions built from the repository instead of relying on a separately packaged release.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is Smokestack-Games/rbxsync's own configuration. It tells Claude Code how to work on rbxsync itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything rbxsync configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Smokestack-Games/rbxsync. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Smokestack-Games/rbxsync/master/.claude/skills/update-rbxsync-from-source/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Smokestack-Games/rbxsync

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.

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README.md
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Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 667 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00054 $0.00667
Opus 5.5 $0.00022 $0.00267
Sonnet 5.5 $0.00011 $0.00133
Haiku 4.5 $0.00005 $0.00067

Measured 2mo ago against content hash fb77afc3d9e9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

update-rbxsync-from-source scanned grade A with 1 finding 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 2mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- `curl -s -m 2 http://localhost:44755/health` — note whether a server is currently running (it will keep running the OLD binary until restarted).
.claude/skills/update-rbxsync-from-source/SKILL.md · 46 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 2mo ago First seen · 46 lines · 54 tokens per session scan A fb77afc3d9e9

Subscribe to this mod's changes

update-rbxsync-from-source is a skill published in the GitHub repository Smokestack-Games/rbxsync (37 stars, last pushed 3mo ago), with no licence file. It adds 54 tokens to every session and 667 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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