byerlikaya/claude-starter-kit · plugin/skills/performance/SKILL.md

performance skillA

performance is agent-read markdown (skill) from byerlikaya/claude-starter-kit: Stack-agnostic performance: measure first, find the bottleneck, then optimise. N+1, needless allocation, wrong async boundary, missing index/cache, heavy payload. No premature optimisation. Use when something is slow, before optimising anything, and when a change touches a hot path..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add byerlikaya/claude-starter-kit/performance@git:20260826.c9e7ffc
Exact content
mdr add byerlikaya/claude-starter-kit/performance@sha256:41ab8fe6f5e2f3b0

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_led4y7scxnnnwxzl.svg)](https://markdownregistry.com/a/art_led4y7scxnnnwxzl)

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Versions

versioncommittedcommitsizeaudit
git:20260826.c9e7ffc latest2026-08-26 c9e7ffc 2,359 BA view · diff
git:20260826.2310e7b2026-08-26 2310e7b 2,264 BA view · diff
git:20260730.0bf71832026-07-30 0bf7183 2,168 BA view · diff
git:20260713.51dc7452026-07-13 51dc745 1,889 BA view · diff
git:20260710.7fdf9e22026-07-10 7fdf9e2 2,534 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, 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 (2359 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

byerlikaya/claude-starter-kit · 22 stars · license MIT · pushed 2026-09-18 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_led4y7scxnnnwxzl
GET https://markdownregistry.com/api/v1/resolve?ref=byerlikaya/claude-starter-kit/performance
GET https://markdownregistry.com/api/v1/blob/41ab8fe6f5e2f3b07cefd9328e3c809eeecb834bfcf080fe359db6ef8bb3cda9

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.