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SQL Query Optimization

optimizing-sql-queries

jeremylongshore/claude-code-plugins-plus-skills

Analyzes SQL statements, identifies bottlenecks, suggests indexes and rewrites, and leverages the sql-query-optimizer plugin so you can improve database responsiveness when queries run slowly.

PayPal Integration Mastery

paypal-integration

sickn33/antigravity-awesome-skills

Guides developers through PayPal payment integration across Express Checkout, REST APIs, IPN/webhook handling, recurring subscriptions, payouts, and refund workflows so apps can securely support both one-time and recurring transactions.

Comprehensive PDF Processing Guide

sickn33/antigravity-awesome-skills

This guide provides a comprehensive overview of PDF manipulation techniques using both Python libraries (like pypdf, pdfplumber, reportlab) and command-line tools (like pdftotext, qpdf). It covers core functionalities such as merging, splitting, rotating, extracting text and structured tables, creating new PDFs, and performing OCR on scanned documents, making it essential for automation workflows.

Performance Testing Automation

performance-testing

jeremylongshore/claude-code-plugins-plus-skills

Automates load, stress, spike, and endurance tests through the performance-test-suite plugin, collecting response time, throughput, and error-rate metrics to spot CPU/memory/database/network bottlenecks and deliver graphs plus optimization guidance.

Supabase Postgres Best Practices Guide

postgres-best-practices

sickn33/antigravity-awesome-skills

A comprehensive resource providing best practices for PostgreSQL performance optimization, schema design, and security configuration. Developed by Supabase, it covers critical areas like query performance, connection management, and Row-Level Security. Use this skill when writing complex SQL queries, reviewing schema integrity, or diagnosing database bottlenecks to ensure high performance and stability.

PostHog Cost Tuner

posthog-cost-tuning

jeremylongshore/claude-code-plugins-plus-skills

Guides teams to audit event volumes, refine autocapture rules, sample high-volume traffic, filter bots, and watch billing metrics so PostHog event costs stay within budget.

Application Performance Profiling

profiling-application-performance

jeremylongshore/claude-code-plugins-plus-skills

Profiles application performance by analyzing CPU usage, memory allocation, and execution time with the application-profiler plugin, then identifies bottlenecks and suggests code-level optimizations for faster execution.

Performance Optimization Advisor

providing-performance-optimization-advice

jeremylongshore/claude-code-plugins-plus-skills

Provides prioritized performance optimization recommendations across frontend, backend, and infrastructure, offering bottleneck analysis, impact estimates, and phased implementation roadmaps when users request speed improvements or reviews.

PyTorch FSDP2 Training Flow

Orchestra-Research/AI-Research-SKILLs

Guides adding PyTorch FSDP2’s fully_shard integration to training loops, covering correct distributed init, bottom-up sharding, mixed precision/offload policies, DTensor-aware optimizers, and distributed checkpointing so oversized models or DeviceMesh sharding goals work reliably.

Rigorous Coding Practices

rigorous-coding

jarrodwatts/claude-code-config

Apply a rigorous coding standard by explicitly stating assumptions, avoiding unsupported claims, and covering both happy and unhappy paths before writing or reviewing code to ensure reliability.

Performance Test Suite

running-performance-tests

jeremylongshore/claude-code-plugins-plus-skills

Guides systematic load, stress, spike, and soak testing with k6, Artillery, JMeter, Locust, or autocannon, producing SLA-aligned metrics, bottleneck analysis, and CI gates for production-like services.

Ruby Fuzzer Guide

trailofbits/skills

Ruzzy is a coverage-guided Ruby fuzzer leveraging libFuzzer to exercise both pure Ruby code and native C extensions; follow the provided installer, harness patterns, and sanitizer-aware runs to validate Ruby apps or gems for memory safety issues.

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