briefbound-performance-engineering SKILL.md skillA

briefbound-performance-engineering from ccdawn/codex-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add ccdawn/codex-skills/briefbound-performance-engineering@git:20260929.25d03f6

Pins git:20260929.25d03f6 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
ccdawn/codex-skills
Path
skills/engineering/briefbound-performance-engineering/SKILL.md
Versions recorded
3
Latest version
git:20260929.25d03f6, committed Sep 29, 2026
First version recorded
Aug 13, 2026
Size
5,249 bytes
Repository stars
6
License
MIT

Use when an explicit performance goal, measurable regression, unresolved hot path, large workload, concurrency/cache/streaming decision, or latency/throughput/CPU/memory/I/O/bundle budget needs profiling and evidence-backed optimization; do not use for routine development, speculative cleanup, competition score iteration, or an already-located N+1/local inefficiency whose batch fix and deterministic count verification are clear to the current owner.

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

# Briefbound 性能工程

## 目标

用最小测量找到真正限制结果的瓶颈,只保留收益超过噪声与复杂度成本的优化。普通开发不经过本 skill。

## Briefbound task contract

- Context Boundary: 已确认的性能目标或强信号、代表性负载、owning surface、现有指标/benchmark/profile、正确性契约和允许写入范围。
- Output Contract: baseline、主要瓶颈、最小优化、同负载对比、取舍、正确性验证和必要的回归保护。
- Allowed Action: 读取相关代码和运行证据,执行有界 benchmark/profile,修改已授权 scope 并运行相关验证;不自动安装全局工具、不压测生产、不扩大产品行为。
- Success Evidence: 相同负载下有可比较的 before/after,收益超过测量噪声或目标已满足,且正确性验证通过。
- Stop Condition: 没有性能强信号、无法建立安全负载、瓶颈不在可改范围、需要高风险架构取舍、收益不足以抵偿复杂度,或目标已经满足。
- Route Out: 当前开发 owner、`briefbound-bug-review`、`briefbound-pr-review`、`briefbound-development-cleanup`、`briefbound-router` 或 BLOCKED。

## 统一调用契约

- 只处理 Briefbound task contract 范围;不匹配时回最具体 owner。用户可见内容默认中文,保留指标、命令、路径、API 和工具名。
- Route Out 仅以 Briefbound task contract 为准;有自然闸门(需用户裁决、批准或被外部阻塞)时末行 `下一步建议: <一个具体动作>`,否则声明继续已授权工作。
- 不把性能工程变成固定开发阶段,也不要求用户逐步确认已授权的测量、优化和验证。

## 三档边界

Briefbound Router 使用 `FAST / CHECK / PROFILE`:

- `FAST`:低频、低规模、机械修改,直接开发和验证,不输出性能检查。
- `CHECK`:当前 owner 静默处理已定位的 N+1、循环 I/O、重复全量计算、隐藏高阶复杂度和无界增长;批量修复及查询/调用次数断言仍是确定性验证,不加载本 skill、不建 benchmark,也不因“发现问题”切到 bug owner。只有存在已观察到的故障、正确性回归或待诊断根因时才路由 `briefbound-bug-review`。
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add ccdawn/codex-skills/briefbound-performance-engineering@sha256:1ae213261df371e6

The line at the top of this page pins the label git:20260929.25d03f6, 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 badge

[![mdr](https://markdownregistry.com/badge/art_3hktjnyby5cmckie.svg)](https://markdownregistry.com/a/art_3hktjnyby5cmckie)

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

Versions

The registry has recorded 3 versions of this file, between Aug 13, 2026 and Sep 29, 2026, about one every 24 days.

versioncommittedcommitsizeaudit
git:20260929.25d03f6 latest2026-09-29 25d03f6 5,249 BA view · diff
git:20260916.292b0ac2026-09-16 292b0ac 5,220 BA view · diff
git:20260813.dec1d142026-08-13 dec1d14 5,064 BA 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 (5249 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

ccdawn/codex-skills · 6 stars · license MIT · pushed 2026-10-22 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_3hktjnyby5cmckie
GET https://markdownregistry.com/api/v1/resolve?ref=ccdawn/codex-skills/briefbound-performance-engineering
GET https://markdownregistry.com/api/v1/blob/1ae213261df371e6028a8e11b758ef74e91e3e88610d27b6dc4f960046ac3bd8

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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