sota-performance SKILL.md skillA
sota-performance from martinholovsky/sota-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add martinholovsky/sota-skills/sota-performance@git:20261026.2b6f6f7Pins git:20261026.2b6f6f7 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- martinholovsky/sota-skills
- Path
skills/sota-performance/SKILL.md- Versions recorded
- 7
- Latest version
- git:20261026.2b6f6f7, committed Oct 26, 2026
- First version recorded
- Jun 17, 2026
- Size
- 12,282 bytes
- Repository stars
- 26
- License
- CC-BY-4.0
State-of-the-art performance engineering for building fast systems and auditing existing code for bottlenecks. Use when the task involves performance, optimization, latency, profiling, slow code, memory usage, caching, or throughput — designing latency budgets, fixing N+1 and accidental-quadratic patterns, tuning allocation/GC pressure, network and I/O efficiency, cache architecture, Core Web Vitals, or setting up benchmarks and regression gates. Not for concurrency correctness…
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
# SOTA Performance Engineering ## Purpose Make systems fast by default and find why they are slow by evidence. This skill encodes two disciplines that share one rule set: 1. **BUILD** — write code whose performance characteristics are known, budgeted, and protected by regression tests before it ships. 2. **AUDIT** — read existing code and telemetry to locate bottlenecks, rank them by user-facing impact, and prescribe fixes with expected gains. Core doctrine: **measure first, but fix known pathologies on sight.** Profiling is mandatory before micro-optimization; it is NOT required to remove an O(n²) loop, an N+1 query, or an unbounded cache. "Premature optimization" never excuses shipping a known pathology. ## BUILD mode When writing new code or features: 1. **Set a budget before writing.** Define the latency budget (p99, not average) and decompose it across hops. An endpoint with a 200 ms p99 budget that calls auth (10 ms) + 2 DB queries (2×15 ms) + serialization (5 ms) has 155 ms of headroom — spend it consciously. See [`rules/01-methodology.md`](rules/01-methodology.md). 2. **Choose data structures by access pattern, not habit.** Know the n. n < 100: …
Read the whole file at its exact version.
How to install
mdr add martinholovsky/sota-skills/sota-performance@sha256:5404dd306f581844The line at the top of this page pins the label git:20261026.2b6f6f7, 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.
[](https://markdownregistry.com/a/art_otyzyxlxxltmbo4y)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 7 versions of this file, between Jun 17, 2026 and Oct 26, 2026, about one every 22 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261026.2b6f6f7 latest | 2026-10-26 | 2b6f6f7 | 12,282 B | A | view · diff |
| git:20261026.808c340 | 2026-10-26 | 808c340 | 11,180 B | A | view · diff |
| git:20261024.8dd2b0a | 2026-10-24 | 8dd2b0a | 11,144 B | A | view · diff |
| git:20261012.ae1b29b | 2026-10-12 | ae1b29b | 10,903 B | A | view · diff |
| git:20260925.c97f62d | 2026-09-25 | c97f62d | 10,179 B | A | view · diff |
| git:20260716.e4afc80 | 2026-07-16 | e4afc80 | 10,054 B | A | view · diff |
| git:20260617.c5d2c7b | 2026-06-17 | c5d2c7b | 9,955 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (12282 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
martinholovsky/sota-skills · 26 stars · license CC-BY-4.0 · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_otyzyxlxxltmbo4y GET https://markdownregistry.com/api/v1/resolve?ref=martinholovsky/sota-skills/sota-performance GET https://markdownregistry.com/api/v1/blob/5404dd306f5818443fd2ed149bc98863f9bce378de9eef99042897e10dc0b1b8
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.