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 sechiro/VRCUdonSkills-for-Codex --skill vrc-udon-persistence-syncgit clone --depth 1 https://github.com/sechiro/VRCUdonSkills-for-CodexWrote 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/sechiro/vrcudonskills-for-codex/vrc-udon-persistence-sync)<a href="https://agentmods.dev/skills/sechiro/vrcudonskills-for-codex/vrc-udon-persistence-sync"><img src="https://agentmods.dev/badge/skills/sechiro/vrcudonskills-for-codex/vrc-udon-persistence-sync/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/sechiro/vrcudonskills-for-codex/vrc-udon-persistence-sync"><img src="https://agentmods.dev/badge/skills/sechiro/vrcudonskills-for-codex/vrc-udon-persistence-sync.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 | $0.00100 | $0.00496 |
| Opus 5 | $0.00050 | $0.00248 |
| Sonnet 5 | $0.00020 | $0.00099 |
| Haiku 4.5 | $0.00010 | $0.00050 |
Grade A, and why
vrc-udon-persistence-sync 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 10d 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.
What it actually says
VRC Udon Persistence Sync
役割
UdonSharp システムにおける状態保存と同期の責務を分ける。local state、synced state、Player Data、Player Object、Persistence のどれを使うかを判断し、混線を防ぐ。
この Skill を使う場面
- local / sync / Player Data / Player Object / Persistence を使い分けたい
- key 設計や復元順を決めたい
- 保存責務と同期責務を分けたい
この Skill を使わない場面
- networking 文書を先に固定したいだけの場合:
vrc-udon-networking-rules - モジュール構造設計から始める場合:
vrc-udon-core-module
進め方
references/sync-decision-guide.mdを読む。- Persistence も使うなら
references/persistence-notes.mdを読む。 - 状態ごとに分類する。
- 復元順を決める。
- key 命名規則を決める。
- Networking 全体の仕様が未整理なら
$vrc-udon-networking-rulesも併用する。
担当範囲
- 保存方式の選択
- 復元順の整理
- key 設計の整理
- PlayerObject と Persistence の関係整理
注意点
- Persistence はリアルタイム同期の代わりにしない
- 復元前提の値を Awake 相当で即参照しない
- 保存キーは後方互換を考えて決める
- 破棄できる状態まで永続化しない
What ships with it
3 files 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.
- 10d ago First seen · 45 lines · 100 tokens per session scan A 9ae35c6835e4
vrc-udon-persistence-sync is a skill published in the GitHub repository sechiro/VRCUdonSkills-for-Codex (58 stars, last pushed 4mo ago), licensed MIT. It adds 100 tokens to every session and 496 once invoked, about $0.0005 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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