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performance-engineering SKILL.md skillA

performance-engineering from devcodex-labs/devcodex is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add devcodex-labs/devcodex/performance-engineering@git:20260821.372be1f

Pins git:20260821.372be1f in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: devcodex-labs/devcodex
Path: content/skills/performance-engineering/SKILL.md
Versions recorded: 2
Latest version: git:20260821.372be1f, committed Aug 21, 2026
First version recorded: Jul 30, 2026
Size: 5,694 bytes
Repository stars: 432
License: AGPL-3.0

性能工程专家 Owner — 当任务涉及性能优化、性能预算、benchmark、profiling、p95/p99、吞吐、延迟、资源效率、容量规划、压测或性能回归时使用；要求先建立可比较基线，再定位瓶颈、评估容量并形成统计可信的回归结论。.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Performance Engineering

## 职责

把“更快”转化为可复现的 workload、预算、基准、profiling、瓶颈归因、容量与回归合同。dev-optimization 负责开发流程，SRE 负责生产运行；本 Skill 负责性能证据的专业可信度。

## PerformanceEngineeringGate

| 字段 | 要求 |
|---|---|
| workloadModel | 用户路径、数据规模、并发、读写比、缓存状态、突发与稳态 |
| performanceBudget | latency percentile、throughput、resource、error/saturation 阈值 |
| benchmarkProtocol | 环境、版本、warmup、sample、duration、重复次数、噪声控制 |
| profilingEvidence | CPU/heap/I/O/lock/network/GC 等证据和采样边界 |
| bottleneckAttribution | 症状→资源→调用路径→因果实验，区分相关与因果 |
| capacityModel | 单实例能力、扩展曲线、饱和点、headroom、成本 |
| regressionThresholds | 绝对/相对阈值、置信区间、噪声带和阻断条件 |

## 执行流程

1. 冻结当前基线、目标用户路径和不可牺牲的正确性/稳定性。
2. 建立代表 workload；区分 cold/warm cache、steady/burst 和 local/CI/prod-like。
3. 先测基线，再 profiling；禁止先改代码后寻找支持结论的数据。
4. 一次改变一个主要变量，保留版本、硬件、配置、数据和命令。
5. 同时看 latency distribution、throughput、errors、CPU/memory/I/O/GC 和尾延迟。
6. 输出 capacity/headroom 与成本权衡；优化不能靠隐藏限流或丢请求。
7. 用同协议重跑对照，达到阈值才判 accepted。

## ModulePerformanceCoverageAndMaintenanceGate

当框架、SDK、CLI、runtime 或公共包声称“完整性能覆盖”时，单一 benchmark、全局 DIM 或一个 release gate 不足以通过。必须先为每个功能判定 performance applicability，再为每个适用模块建立：

| 维度 | 必填证据 |
|---|---|
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add devcodex-labs/devcodex/performance-engineering@sha256:9eb7cde356a337be

The line at the top of this page pins the label git:20260821.372be1f, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_gurn4o5azf23wzfo.svg)](https://markdownregistry.com/a/art_gurn4o5azf23wzfo)

5 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Jul 30, 2026 and Aug 21, 2026, about one every 22 days.

version	committed	commit	size	audit
git:20260821.372be1f latest	2026-08-21	372be1f	5,694 B	A	view · diff
git:20260730.6ee304a	2026-07-30	6ee304a	5,535 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (5694 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

devcodex-labs/devcodex · 432 stars · license AGPL-3.0 · pushed 2026-10-27 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_gurn4o5azf23wzfo
GET https://markdownregistry.com/api/v1/resolve?ref=devcodex-labs/devcodex/performance-engineering
GET https://markdownregistry.com/api/v1/blob/9eb7cde356a337beb6a023103a9e957a6501778902e8dd0d1a35dd3c4a356e0e

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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