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 rules/yudefine/nuxt-supabase-starter/nuxt-error-localizationgit clone --depth 1 https://github.com/YuDefine/nuxt-supabase-starterWrote 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/rules/yudefine/nuxt-supabase-starter/nuxt-error-localization)<a href="https://agentmods.dev/rules/yudefine/nuxt-supabase-starter/nuxt-error-localization"><img src="https://agentmods.dev/badge/rules/yudefine/nuxt-supabase-starter/nuxt-error-localization.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 | $0.00000 | $0.00506 |
| Opus 5 | $0.00000 | $0.00253 |
| Sonnet 5 | $0.00000 | $0.00101 |
| Haiku 4.5 | $0.00000 | $0.00051 |
Grade A, and why
nuxt-error-localization 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 yesterday.
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
UI 錯誤訊息本地化
UI MUST NOT 出現未經處理的原始英文錯誤代碼或訊息（not_found、unauthorized、PGRST116、堆疊追蹤等）。所有對使用者顯示的錯誤都必須是專案語系（預設繁體中文）的友善訊息。
禁止 pattern
| 禁止 | 應改為 |
|---|---|
errorMessages[code] ?? code |
errorMessages[code] ?? '發生未預期的錯誤' |
error.message / e.statusMessage 直接綁 template |
parseError(error) / getErrorMessage(error, '預設中文訊息') |
route.query.error 直接顯示 |
parseError(route.query.error) |
toast.add({ title: error.message }) |
toastError(title, error) 或先 getErrorMessage |
核心原則
- UI 一律經過正規化 helper，NEVER 把 raw error 物件 / API code 餵給 template
- server 拋的
statusMessage是給 log 用的英文 enum，前端不可直接顯示 - 新增 server-side error code 時 MUST 同步更新前端
errorMessages對照表 - URL query 來源不可信，必須先過對照表
例外
開發環境 debug toast / dev-only banner 可保留原始訊息，但 MUST 用 if (import.meta.dev) 包起來。
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.
- yesterday First seen · 37 lines · 0 tokens per session scan A 537b4f611ed3
nuxt-error-localization is a cursor rule published in the GitHub repository YuDefine/nuxt-supabase-starter (45 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 506 tokens. 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 2026-09-03.
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