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/seed-forge/harness-ai-kit/devlab-web-skywalking-rum-usagenpx skills add seed-forge/harness-ai-kit --skill devlab-web-skywalking-rum-usagegit clone --depth 1 https://github.com/seed-forge/harness-ai-kitWrote 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/seed-forge/harness-ai-kit/devlab-web-skywalking-rum-usage)<a href="https://agentmods.dev/skills/seed-forge/harness-ai-kit/devlab-web-skywalking-rum-usage"><img src="https://agentmods.dev/badge/skills/seed-forge/harness-ai-kit/devlab-web-skywalking-rum-usage.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 5.1 | $0.00081 | $0.02648 |
| Opus 5 | $0.00041 | $0.01324 |
| Sonnet 5 | $0.00016 | $0.00530 |
| Haiku 4.5 | $0.00008 | $0.00265 |
Grade A, and why
devlab-web-skywalking-rum-usage 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 5d 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 — 277 lines — stays where its author put it; the contents beside it link to each section on GitHub.
devlab-frontend-skywalking-rum-usage
为前端应用接入 SkyWalking RUM(Real User Monitoring),实现 JS 错误监控、API 调用监控、Core Web Vitals 采集、SPA 路由感知和前后端分布式链路追踪。
本 Skill 负责浏览器性能/RUM 和浏览器链路;前端错误聚合、Source Map 与 Issue 管理统一走
infra-glitchtip-ops。完整支柱路由可选参考devlab-observability-onboard的REFERENCE-ROUTE-TABLE.md。
适用场景
- 为前端应用安装并配置
skywalking-client-js - 接入全局 JS 错误捕获(适配各前端框架)
- 采集 Core Web Vitals(LCP / CLS / INP)
- 监控 XHR / Fetch / Axios 等 API 调用的延迟和错误率
- SPA 路由切换时上报 PV 和性能数据
- 通过
sw8header 实现浏览器→后端的分布式 trace 关联
不适用场景
- SkyWalking OAP 部署/升级/运维 → 使用
infra-skywalking-ops - 后端 Java Agent 接入 → 使用
devlab-srv-skywalking-usage - 前端错误聚合平台(Source Map / Issue 管理) → 使用
infra-glitchtip-ops - OAP REST 端口反代配置 → 使用
infra-ingress-ops
前置条件
- SkyWalking OAP 版本 ≥ 10.2.0(Browser API 必须)
- OpenResty 已配置 RUM 反代(
/browser/perfData/→ OAP REST :12800),含 CORS - 前端项目可使用 npm 安装依赖
工作顺序
1. 安装 SDK
npm install skywalking-client-js --save
2. 初始化配置
在项目入口文件中初始化 SDK。参数通过环境变量注入,禁止硬编码。
// src/monitor/skywalking-rum.ts
import ClientMonitor from 'skywalking-client-js';
export function initRum(options: {
collector: string; // OpenResty HTTPS 反代地址,如 https://rum.{base_domain}
service: string; // 应用标识,如 'my-app-web'
version: string; // 应用版本号,如 'v1.0.0'
}) {
ClientMonitor.register({
collector: options.collector,
service: options.service,
serviceVersion: options.version,
pagePath: location.pathname,
jsErrors: true, // JS 运行时错误
apiErrors: true, // API 调用错误(XHR/Fetch/Axios/SuperAgent)
resourceErrors: true, // 资源加载错误(图片/脚本/样式)
useWebVitals: true, // Core Web Vitals(LCP/CLS/INP)
enableSPA: true, // SPA hashchange 自动 PV 上报
noTraceOrigins: [/localhost/, /127\.0\.0\.1/], // 开发环境排除
traceTimeInterval: 60000, // 上报间隔(ms)
});
}
环境变量配置示例:
| 框架 | 环境变量前缀 | 示例 |
|---|---|---|
| Vite | VITE_ |
VITE_SW_COLLECTOR=https://rum.{base_domain} |
| Next.js | NEXT_PUBLIC_ |
NEXT_PUBLIC_SW_COLLECTOR=... |
| Create React App | REACT_APP_ |
REACT_APP_SW_COLLECTOR=... |
| Vue CLI | VUE_APP_ |
VUE_APP_SW_COLLECTOR=... |
What ships with it
4 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.
- 5d ago First seen · 277 lines · 81 tokens per session scan A b33f64c930a1
devlab-web-skywalking-rum-usage is a skill published in the GitHub repository seed-forge/harness-ai-kit (22 stars, last pushed 4d ago), licensed Apache-2.0. It adds 81 tokens to every session and 2,648 once invoked, about $0.0004 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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