optimize SKILL.md skillA

optimize from jasonxudeveloper/nino is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add jasonxudeveloper/nino/optimize@git:20261030.313f1eb

Pins git:20261030.313f1eb in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
jasonxudeveloper/nino
Path
.claude/skills/optimize/SKILL.md
Versions recorded
5
Latest version
git:20261030.313f1eb, committed Oct 30, 2026
First version recorded
Oct 30, 2026
Size
45,965 bytes
Repository stars
652
License
MIT

Nino's optimization techniques, measured and kept - what made read and write paths faster or slower in .NET (the JIT's inlining budget, keeping the reader and writer in registers, out-of-line rare paths, static readonly checks, bounds-check elimination with a ref to the first element and Unsafe.Add, vector loops on x64 AVX-512/AVX2/SSSE3 and Arm64 tbl/ldp/stp), Unity's Burst kernels and IL2CPP, the prefetch design of every runtime, plus reading the machine code (asm.py, JitDisasm); Go, Rust…

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

# Optimization techniques

The tricks that made Nino fast, the ones that made it slower, and how to see which you have. This skill owns the
techniques; how to measure is `benchmark`, where the next win is `audit-perf`, and the
platforms each technique must hold on are `platforms`; the techniques of the Go, Rust and TypeScript runtimes are
`optimize-runtimes`. A technique found and measured (faster or slower) is added
here, as a bullet: the rule, why, the evidence.

A change to a read or write path (Nino.Core, Nino.Immutable, the code the generator emits) can slow cases it does not
touch: everything a top-level call reaches is inlined into one method, under one inlining budget. Before committing
one, run `python3 benchmarks/asm.py compare origin/main` (about two minutes, see benchmarks/README.md) and explain or
fix every method it lists. To prove the code unchanged, dump both sides with `DOTNET_TieredCompilation=0` (the
variable around `asm.py dump [--ref REF] --runs 1 --asm FILE`) and compare the listings per method: FullOpts code
has no profile, so it repeats exactly, while Tier1 listed 7 of 2,356 methods in code a change did not reach.

## What has gone wrong before
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add jasonxudeveloper/nino/optimize@sha256:c9b7f6704baf04f2

The line at the top of this page pins the label git:20261030.313f1eb, 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_mwq3azratg2unsvs.svg)](https://markdownregistry.com/a/art_mwq3azratg2unsvs)

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

Versions

The registry has recorded 5 versions of this file, all committed on Oct 30, 2026.

versioncommittedcommitsizeaudit
git:20261030.313f1eb latest2026-10-30 313f1eb 45,965 BA view · diff
git:20261030.dc7caf22026-10-30 dc7caf2 45,746 BA view · diff
git:20261030.c11411e2026-10-30 c11411e 43,473 BA view · diff
git:20261030.3dbbf072026-10-30 3dbbf07 43,515 BA view · diff
git:20261030.e2e28fe2026-10-30 e2e28fe 43,480 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 (45965 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

jasonxudeveloper/nino · 652 stars · license MIT · pushed 2026-11-03 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_mwq3azratg2unsvs
GET https://markdownregistry.com/api/v1/resolve?ref=jasonxudeveloper/nino/optimize
GET https://markdownregistry.com/api/v1/blob/c9b7f6704baf04f21b56d74f49fc20feb64cbbc33f6c2cb6b696481b663a7691

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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