performance skills

249 tagged performance, measured the same way as everything else here.

Browse within: Optimization 35build-tools 26progressive 26wordpress 26wordpress-child-theme 26wordpress-starter-theme 26profiling 25nextjs 24ReAct 16sql 16monorepo 15devtools 14typescript 13animation 12

geo-technical

01

zubair-trabzada/geo-seo-claude

Skill Claude CodeCodex

Technical SEO audit with GEO-specific checks — crawlability, indexability, security, performance, SSR, and AI crawler access.

9.7k 2d ago A 28 tokens original MIT

evalscope

02

modelscope/evalscope

Skill Claude CodeCodex

LLM evaluation & inference performance testing via the evalscope CLI. Translates natural language requests into evalscope commands for: (1) Model accuracy evaluation — runs 160+ benchmarks against local checkpoints or API endpoints (OpenAI-compatible, Anthropic, LiteLLM); (2) Performance stress testing — TTFT, TPOT…

3.3k 2d ago A 197 tokens original Apache-2.0

hotpath_bump

03

pawurb/hotpath-rs

Skill Claude CodeCodex

Bump the hotpath version number across the workspace and related files. Updates crate versions in Cargo.toml files (exact patch version) and version references in the backend middleware, hotpathinit skill, and README (major.minor only). Use when the user wants to bump, bump the version, or release a new hotpath…

1.7k 2d ago A 73 tokens original MIT

hotpath_init

04

pawurb/hotpath-rs

Skill Claude CodeCodex

Configure hotpath profiling in a Rust project. Adds the hotpath dependency with feature-gated setup, instruments main with hotpath::main, functions with measure/measureall, and wraps channels, mutexes, rwlocks, streams, futures, reqwest clients, axum routers and byte-level I/O with hotpath macros. Use when the user…

1.7k 2d ago A 88 tokens original MIT

syncmeta

05

pawurb/hotpath-rs

Skill Claude CodeCodex

Sync changes from hotpath and hotpath-macros crates to their meta counterparts (hotpath-meta and hotpath-macros-meta). Use when meta crates need to be updated with recent changes.

1.7k 2d ago A 43 tokens original MIT

nucliweb/webperf-snippets

Skill Claude CodeCodex

Intelligent Core Web Vitals analysis with automated workflows and decision trees. Measures LCP, CLS, INP with guided debugging that automatically determines follow-up analysis based on results. Includes workflows for LCP deep dive (5 phases), CLS investigation (loading vs interaction), INP debugging (latency breakdown…

1.4k 1mo ago A 113 tokens original MIT

webperf-interaction

07

nucliweb/webperf-snippets

Skill Claude CodeCodex

Intelligent interaction performance analysis with automated workflows for INP debugging, scroll jank investigation, and main thread blocking. Includes decision trees that automatically run script attribution when long frames detected, break down input latency phases, and correlate layout shifts with interactions.…

1.4k 1mo ago A 124 tokens original MIT

webperf-loading

08

nucliweb/webperf-snippets

Skill Claude CodeCodex

Intelligent loading performance analysis with automated workflows for TTFB investigation (DNS/connection/server breakdown), render-blocking detection, script performance deep dive (first vs third-party attribution), font optimization, and resource hints validation. Includes decision trees that automatically analyze…

1.4k 1mo ago A 172 tokens original MIT

architecture

09

wprig/wprig

Skill Claude CodeCodex

Guide to WP Rig theme architecture, file structure, components, and coding conventions.

1.3k 4d ago A 16 tokens GPL-3.0

feature-planning

10

wprig/wprig

Skill Claude CodeCodex

Contract-first approach for planning new features in WP Rig themes.

1.3k 4d ago A 12 tokens GPL-3.0

styles

11

wprig/wprig

Skill Claude CodeCodex

Guide to managing CSS styles, partials, and builds in WP Rig.

1.3k 4d ago A 15 tokens GPL-3.0

Aaronontheweb/dotnet-skills

Skill Claude CodeCodex

Provides guidance for implementing OpenTelemetry instrumentation in .NET codebases, covering tracing (Activities/Spans), metrics, logs, naming conventions, error handling, performance, SDK setup, resources, context propagation, and API design best practices.

1.1k 24d ago A 56 tokens original MIT

old-code

13

zjw-swun/old-code

Skill Claude CodeCodex

A Chinese-language programming method for AI-assisted development that emphasises modelling the problem, simulating execution, analysing complexity, and controlling architecture.

541 4mo ago A 73 tokens

hardwood-pr-git

14

hardwood-hq/hardwood

Skill Claude CodeCodex

Rebase, rewrite, squash, reword and push Hardwood PR history — including contributor PRs whose author and committer identity must survive the rewrite. Use whenever the user asks to "rebase", "rebase onto main", "fix the commit message", "prefix with the issue key", "squash the commits", "force push (with lease)"…

366 2d ago A 163 tokens original Apache-2.0

hardwood-review

15

hardwood-hq/hardwood

Skill Claude CodeCodex

Review a Hardwood PR, local branch, or staged diff against the project's CLAUDE.md conventions and recurring failure modes. Use whenever the user asks to "review", "look over", "check", "audit", or "assess" a PR number, a branch, or pending changes in the hardwood-hq/hardwood repo. Also use when the user pastes a PR…

366 2d ago A 102 tokens original Apache-2.0

hardwood-cli

16

hardwood-hq/hardwood

Skill Claude CodeCodex

Inspect, debug, and convert Apache Parquet files with the hardwood CLI. Use whenever a user is debugging code that reads or writes Parquet (Arrow / Spark / Flink / Java / Python) and the data file itself may be the cause — to check the schema, physical and logical types, repetition, or a row sample. Use it to diagnose…

366 2d ago A 216 tokens original Apache-2.0

codspeed-optimize

17

CodSpeedHQ/codspeed

Skill Claude CodeCodex

Autonomously optimize code for performance using CodSpeed benchmarks, flamegraph analysis, and iterative improvement. Use this skill whenever the user wants to make code faster, reduce CPU usage, optimize memory, improve throughput, find performance bottlenecks, or asks to 'optimize', 'speed up', 'make faster'…

280 3d ago A 113 tokens original Apache-2.0

CodSpeedHQ/codspeed

Skill Claude CodeCodex

Set up performance benchmarks and CodSpeed harness for a project. Use this skill whenever the user wants to create benchmarks, add performance tests, set up CodSpeed, configure codspeed.yml, integrate a benchmarking framework (criterion, divan, pytest-benchmark, vitest bench, go test -bench, google benchmark), or when…

280 3d ago A 120 tokens original Apache-2.0

audit-website

19

squirrelscan/squirrelscan

Skill Claude CodeCodex

Audit a website with the squirrelscan CLI and fix the findings in code. Runs SEO, performance, security, technical, content, accessibility, and 15 other rule categories (260+ rules), returns an LLM-optimized report, then drives an iterative fix loop, mapping issues to source files, applying fixes, and re-auditing…

264 4d ago A 94 tokens original MIT

squirrelscan

20

squirrelscan/squirrelscan

Skill Claude CodeCodex

Skill "squirrelscan" from squirrelscan/squirrelscan, covering squirrelscan cli, links, install, command overview and quickstart.

264 4d ago A 101 tokens original MIT

svelte

21

bobmatnyc/claude-mpm

Skill Claude CodeCodex

Svelte 5 - Reactive UI framework with compiler magic, Runes API, SvelteKit full-stack framework, SSR/SSG, minimal JavaScript.

149 1mo ago A 34 tokens

code-review

22

femto/minion

Skill Claude CodeCodex

Performs thorough code reviews with focus on best practices, security, performance, and maintainability. Use this skill when reviewing pull requests, auditing code quality, or getting feedback on implementations.

149 5d ago A 40 tokens original MIT

release

23

mahmoud/lithoxyl

Skill Claude CodeCodex

Skill "release" from mahmoud/lithoxyl, covering release lithoxyl, pre-flight checks, release steps, 1. determine the release version and 2. update version for release.

146 1mo ago C 3 tokens original BSD-3-Clause