740 free skills
Performance skills
Skills for performance — profiling, caching strategy, database query tuning, and frontend load-time optimization.
Sourced from real, public repositories — synced daily, never invented.
740 free skills
Skills for performance — profiling, caching strategy, database query tuning, and frontend load-time optimization.
Sourced from real, public repositories — synced daily, never invented.
15 tools across six categories
13 of them never send your data anywhere
Free · No signup · No trial clock
SEE THE DIRECTORY
transformer-lens-interpretability
firecrawl/ai-research-skills
Provides guidance for mechanistic interpretability research using TransformerLens to inspect and manipulate transformer internals via HookPoints and activation caching. Use when reverse-engineering model algorithms, studying attention patterns, or performing activation patching experiments.
sglang
firecrawl/ai-research-skills
Fast structured generation and serving for LLMs with RadixAttention prefix caching. Use for JSON/regex outputs, constrained decoding, agentic workflows with tool calls, or when you need 5× faster inference than vLLM with prefix sharing. Powers 300,000+ GPUs at xAI, AMD, NVIDIA, and LinkedIn.
django-patterns
webcomunicasolutions/claude-code-toolkit
Arquitectura production-grade Django - models, views, serializers, signals, caching. Usar cuando se trabaje con Django/DRF.
ncu-cuda-profiling
maxiaosong1124/ncu-cuda-profiling-skill
Automated NCU (Nsight Compute) profiling workflow with full metrics collection and persistent storage
pandas-pro
hainamchung/agent-assistant
Use when working with pandas DataFrames, data cleaning, aggregation, merging, or time series analysis. Invoke for data manipulation, missing value handling, groupby operations, or performance optimization.
gptrans
clasen/gptrans
Instructions for using the GPTrans Node.js library for AI-powered translations with smart batching, caching, context-aware translations, refinement, and image translation. Use when adding i18n/localization to a Node.js project, translating text or images between languages, or managing multilingual content.
bridle
sundial-org/awesome-openclaw-skills
Unified configuration manager for AI coding assistants. Manage profiles, install skills/agents/commands, and switch configurations across Claude Code, OpenCode, Goose, and Amp.
sentry-ios-swift-setup
getsentry/sentry-for-cursor
Setup Sentry in iOS/Swift apps. Use when asked to add Sentry to iOS, install sentry-cocoa SDK, or configure error monitoring, tracing, session replay, logging, or profiling for iOS applications using Swift and SwiftUI.
performance-optimization
jae-labs/skills
Optimizes application performance. Use when performance requirements exist, when you suspect performance regressions, or when Core Web Vitals or load times need improvement. Use when profiling reveals bottlenecks that need fixing.
performance-optimization
mohsenpak370/agent-skills
Optimizes application performance. Use when performance requirements exist, when you suspect performance regressions, or when Core Web Vitals or load times need improvement. Use when profiling reveals bottlenecks that need fixing.
010111-http-caching
natuleadan/skills
Three-tier caching — browser, runtime, and distributed cache. Pipeline batching, atomic transactions, invalidation, and multi-language cache keys.
core-web-vitals
quality-max/free-qa-skills
>
core-web-vitals
luispaulorbo/claude-skills-lpx
Optimize Core Web Vitals (LCP, INP, CLS) for better page experience and search ranking. Use when asked to "improve Core Web Vitals", "fix LCP", "reduce CLS", "optimize INP", "page experience optimization", or "fix layout shifts".
web-quality-core-web-vitals
spiosifidis/my-claude-skills
Optimize Core Web Vitals (LCP, INP, CLS) for better page experience and search ranking. Use when asked to "improve Core Web Vitals", "fix LCP", "reduce CLS", "optimize INP", "page experience optimization", or "fix layout shifts".
web-vitals-analyzer
terminalskills/skills
>-
postgresql-optimization
clubmediterranee/ai-core
PostgreSQL database optimization workflow for query tuning, indexing strategies, performance analysis, and production database management.
frontend-architecture-auditor
alan-w-arch/skill-builder
Analyzes frontend codebases, evaluates architecture quality using the Frontend Feasibility & Complexity Index (FFCI), and suggests refactoring strategies to improve maintainability, performance, and modularity.
frontend-developer-skill
belokonm/claude-supercode-skills
Comprehensive frontend development specialist for building modern web applications with React, Vue, Angular, and modern tooling including state management, testing, and performance optimization
sentry-ios-swift-setup
getsentry/sentry-for-claude
Setup Sentry in iOS/Swift apps. Use when asked to add Sentry to iOS, install sentry-cocoa SDK, or configure error monitoring, tracing, session replay, logging, or profiling for iOS applications using Swift and SwiftUI.
sqlite
fatih-developer/fth-skills
Expert SQLite guidance for modern full-stack and AI projects. Use when user mentions sqlite, sqlite3, bun:sqlite, better-sqlite3, aiosqlite, libsql, Turso, Cloudflare D1, WAL mode, FTS5, sqlite-vec, or asks about local/embedded databases, schema design, SQLite migrations with Drizzle or raw SQL, performance tuning, backup/restore, and building stateful CLI with SQLite.
audience-profiler
tendtoyj/tendtoyj-claude-skills
Profile your target audience — segments, buying journey, pain points, and media habits. Use when user mentions: audience research, customer segments, buyer persona, buyer journey, customer journey, pain points, target audience, customer profiling, audience profiling, who is my customer, media consumption, attention map, customer insight, audience analysis, ideal customer, ICP, customer needs, unmet needs, buying behavior
fs-mobile-performance
fernandoserra/skills
Audita performance de una app Expo/React Native — renders innecesarios, FlatList/FlashList, imágenes, memoria, navegación, animaciones, JS thread/UI thread, network requests y bundle size. Explica el mecanismo causal de cada hallazgo ("este componente re-renderiza porque..."), no solo lo señala. Distingue lo verificable por código de lo que requiere profiling manual (Flipper, Xcode Instruments, Android Studio Profiler) que la skill no puede correr. Usar cuando el usuario pida auditar/mejorar performance, revisar renders innecesarios, optimizar listas/imágenes/animaciones, o reducir bundle size de una app móvil.
caching-strategies
1mangesh1/dev-skills-collection
Caching strategies and implementation patterns. Use when user asks to "add caching", "cache API responses", "set up CDN caching", "configure HTTP caching", "implement memoization", "cache database queries", "set cache headers", "invalidate cache", "design cache layer", "reduce API latency", "cache warming", "cache busting", "distributed caching", "Redis caching", "edge caching", or mentions caching strategies, cache invalidation, TTL, cache-aside, write-through, write-behind, CDN, browser caching, or memoization.
caching-pro
truongnat/simple-skills
>+
core-web-vitals
guilhermemarketing/esc-skills
Optimize Core Web Vitals (LCP, INP, CLS) for better page experience and search ranking. Use when asked to "improve Core Web Vitals", "fix LCP", "reduce CLS", "optimize INP", "page experience optimization", or "fix layout shifts".
web-performance-optimization
szj2ys/skills
Optimize web performance using Core Web Vitals, modern patterns (View Transitions, Speculation Rules), and framework-specific techniques
web-vitals-and-seo
paldom/landing-page-builder-skills
Engineers a landing page to rank and load fast - server-rendered HTML so crawlers and AI bots see content, Core Web Vitals (LCP/INP/CLS), field-vs-lab, structured data, off-main-thread scripts. Use when asked to improve Core Web Vitals, page speed, technical SEO, get indexed, or fix a slow page. Not for copy, design, accessibility, A/B testing, or Next.js 'use client'/build bugs.
database-optimizer
neonetz/opencode-skills
Optimizes database queries and improves performance across PostgreSQL and MySQL systems. Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution.
database-optimizer
neg0diay/opencode-skills
Optimizes database queries and improves performance across PostgreSQL and MySQL systems. Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution.
database-optimizer
synapse-ai-hub/opencode-skills
Optimizes database queries and improves performance across PostgreSQL and MySQL systems. Use when investigating slow queries, analyzing execution plans, or optimizing database performance. Invoke for index design, query rewrites, configuration tuning, partitioning strategies, lock contention resolution.
performance-tuning-pro
truongnat/simple-skills
>+
frontend-performance
saviorhidc/claude-web-design-skills
Next.js performance optimisation — Core Web Vitals, image sizing, font loading, code splitting, Server vs Client Component decisions, bundle analysis. Use when Lighthouse perf score is below 90 or when optimising for LCP/CLS/INP.
performance-optimization
charlieviettq/awesome-agent-skill
Measure, identify bottlenecks, fix, verify, and guard performance regressions. Use for web vitals, slow APIs, heavy notebooks/pipelines, or video/render workloads.
profile
winchxyz/idea-to-build
Switch the idea-to-build coordinator to a domain profile — general, startup, tech-architecture, content-strategy, product-roadmap, or personal-decisions. Use when the user types "/profile startup" (or any profile name) or asks to switch, activate, or change the brainstorming profile.
startup-perf
microsoft/aspire
Measures Aspire startup profiling with CLI self-profile capture and dashboard export traces.
optimizing-streamlit-performance
streamlit/agent-skills
Optimizing Streamlit app performance. Use when apps are slow, rerunning too often, or loading heavy content. Covers caching, fragments, and static vs dynamic widget choices.
scala-json-circe
majk-p/scala-skills
Use this skill when working with JSON in Scala using circe. Covers encoding, decoding, automatic and semi-automatic derivation, cursor navigation, ADT handling, custom codecs, zero-copy decoding, JSON Schema generation, recursive types, cats-effect integration, fs2 streaming, ZIO integration, and performance optimization. Trigger when the user mentions JSON, circe, encode, decode, serialization, deserialization, JSON parsing, JSON schema, or needs to handle JSON data in a Scala codebase — even if they don't explicitly name the library.
scala-parsing
majk-p/scala-skills
Use this skill when implementing parsers for structured text or DSLs in Scala using FastParse. Covers parser combinators, sequential and alternative parsing, repetition, capturing values, recursive parsers, error handling with cuts, JSON/CSV/expression parsing, memoization, performance optimization, and complex DSL implementation. Trigger when the user mentions parsing, parsers, DSL implementation, text processing, FastParse, or needs to parse custom data formats.
performance
bastos/ruby-plugin-marketplace
This skill should be used when the user asks about "Ruby performance", "optimization", "profiling", "benchmarking", "memory", "garbage collection", "GC", "benchmark-ips", "stackprof", "memory_profiler", "slow code", "speed up Ruby", or needs guidance on making Ruby code faster.
symfony-7-4-expression-language
guillaumedelre/claude-skills
Symfony 7.4 ExpressionLanguage component reference for compiling and evaluating expressions. Use when working with expression evaluation, expression compilation, custom expression functions, expression providers, expression caching, or any ExpressionLanguage-related Symfony code. Triggers on: ExpressionLanguage, expression evaluation, expression compilation, custom functions, ExpressionFunctionProviderInterface, ParsedExpression, expression syntax, evaluate(), compile(), expression linting.
pandas-pro
neg0diay/opencode-skills
Performs pandas DataFrame operations for data analysis, manipulation, and transformation. Use when working with pandas DataFrames, data cleaning, aggregation, merging, or time series analysis. Invoke for data manipulation tasks such as joining DataFrames on multiple keys, pivoting tables, resampling time series, handling NaN values with interpolation or forward-fill, groupby aggregations, type conversion, or performance optimization of large datasets.
pandas-pro
neonetz/opencode-skills
Performs pandas DataFrame operations for data analysis, manipulation, and transformation. Use when working with pandas DataFrames, data cleaning, aggregation, merging, or time series analysis. Invoke for data manipulation tasks such as joining DataFrames on multiple keys, pivoting tables, resampling time series, handling NaN values with interpolation or forward-fill, groupby aggregations, type conversion, or performance optimization of large datasets.
coldbox-view-rendering
coldbox/skills
Use this skill when rendering views and partials in ColdBox, creating reusable view components, caching view output, passing data to views, rendering views from services, using renderView() inline, or dynamically selecting views based on context.
high-performance-spark
ingeleyton/high-performance-spark
Knowledge base from \"High Performance Spark\" by Holden Karau and Rachel Warren. Use when optimizing Apache Spark jobs, choosing Spark SQL/DataFrame/RDD APIs, diagnosing shuffles, joins, partitioning, caching, serialization, PySpark overhead, streaming, ML pipelines, or Spark production failures.
godot-shader-developer
sahiixx/agency-agents
Godot 4 visual effects specialist - Masters the Godot Shading Language (GLSL-like), VisualShader editor, CanvasItem and Spatial shaders, post-processing, and performance optimization for 2D/3D effects
coldbox-event-model
coldbox/skills
Use this skill when working with the ColdBox event object (prc/rc), managing request collections, rendering views and data responses, handling redirects with relocate(), controlling HTTP status codes, or implementing event caching in ColdBox handlers.
unity6-webgl-optimize
thelazyindiantechie/unity6
Specialized Unity 6 sub-skill for WebGL platform performance optimization using native unity CLI and unity command eval. Use when the user requests WebGL performance tuning, /unity6:webgl, /unity6:webgl-optimize, /unity6-webgl-optimize, WebAssembly (WASM), WebGPU, WebGL memory heap, or Brotli compression.
terrain-3d
markkampstra/fp-survival
3D terrain generation expert for browser-based games using Three.js/WebGL. TRIGGER when: creating or modifying terrain, heightmaps, islands, biomes, terrain texturing, vertex colors, splatmaps, erosion simulation, LOD systems, terrain noise functions, caves, cliffs, overhangs, underwater terrain, procedural landscape generation, terrain performance optimization, or chunk-based terrain. Also trigger when discussing terrain mesh resolution, island shaping, radial falloff, terrain colliders, height sampling, or any terrain-related visual quality improvements. Even if the user just says 'make the terrain look better', 'add a cave', 'bigger island', or 'more interesting landscape' — use this skill.
simready-foundation-add-profile
nvidia/simready-foundation
Use for adding SimReady profile versions with feature bundles, docs, indexes, and validation notes.
c3d-profiles
hebackus/c3d-api-plugin
Profiles (surface, layout, offset), profile views, PVIs, band sets, styles
performance-optimization
f2dac/agent-skills
Optimizes application performance. Use when performance requirements exist, when you suspect performance regressions, or when Core Web Vitals or load times need improvement. Use when profiling reveals bottlenecks that need fixing.
performance-optimization
lll0k0lad/agent-skills
Use when performance requirements exist, when you suspect performance regressions, or when Core Web Vitals or load times need improvement. Use when profiling reveals bottlenecks that need fixing.
performance-optimization
ragin/addyosmani-agent-skills
Optimizes application performance. Use when performance requirements exist, when you suspect performance regressions, or when Core Web Vitals or load times need improvement. Use when profiling reveals bottlenecks that need fixing.
caching-strategy
kienbui1995/magic-powers
Use when implementing caching - Redis, CDN, HTTP cache headers, application-level memoization, or cache invalidation patterns
Caching Strategy Advisor
notysoty/openagentskills
Recommends the right caching layer, TTL strategy, and invalidation approach for any application bottleneck.
caching-strategies
pluginagentmarketplace/custom-plugin-system-design
Production-grade caching strategies skill for Redis patterns, CDN configuration, cache invalidation, and performance optimization
laraperf-profiling
mateffy/laraperf
Profile SQL queries, detect N+1 patterns, and run EXPLAIN ANALYZE on Laravel applications using the mateffy/laraperf Artisan commands.
profile
baekenough/oh-my-customcode
Load a skill profile to switch active plugin set. Use when user wants to focus on a specific workflow (web-app/data-eng/harness-dev/minimal) and reduce skill enumeration block size per #1041.
data-profiler
kavasimihaly/dbt-pipeline-plugin
Automatically profile SQL Server tables and CSV files with intelligent analysis. Detects primary key candidates, infers data types from CSV data, calculates column statistics (nulls, cardinality, data types), identifies data quality issues, and recommends appropriate dbt tests. Use when exploring source data, creating staging models, or validating data quality before transformation. Generates comprehensive profiling reports with test recommendations.
core-web-vitals
myehia565/google-seo-agent-skills
Measures and remediates LCP, INP, and CLS with evidence from lab/field tools. Use when page experience or CWV regressions are suspected or reported.