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Found 6,744 Skills
Analyze true Amazon profitability per ASIN and across a portfolio. Goes beyond per-unit fees to include advertising, returns, storage, promotions, and hidden fees, and finds where the real money is made and lost. Use when a user asks about profitability, true net profit, which products make money, why profit is lower than expected, portfolio profit analysis, or hidden fees eating margin. Trigger phrases: "profit analysis", "true profit", "net margin", "which products are profitable", "where is my money going", "hidden fees". Works with zero tools. the user pastes revenue, fee, and cost figures.
Use when adding Auth0 login, logout, or token management to a WPF desktop application. Integrates Auth0.OidcClient.WPF — use even if the user says "add login to my WPF app" or "add Auth0 to my Windows desktop app".
Detects timing side-channel vulnerabilities in cryptographic code. Use when implementing or reviewing crypto code, encountering division on secrets, secret-dependent branches, or constant-time programming questions in C, C++, Go, Rust, Swift, Java, Kotlin, C#, PHP, JavaScript, TypeScript, Python, or Ruby.
Generate and edit images using Google Gemini 3 Pro Image (Nano Banana Pro). Supports text-to-image, image editing, various aspect ratios, and high-resolution output (2K/4K).
Fullstack development toolkit with project scaffolding for Next.js/FastAPI/MERN/Django stacks and code quality analysis. Use when scaffolding new projects, analyzing codebase quality, or implementing fullstack architecture patterns.
Implement API rate limiting strategies using token bucket, sliding window, and fixed window algorithms. Use when protecting APIs from abuse, managing traffic, or implementing tiered rate limits.
Create SVG graphics through programmatic code generation. Use this skill when the user asks to create icons, logos, illustrations, diagrams, data visualizations, generative art, patterns, fractals, or any vector graphics. Provides executable Python scripts for grids, radial patterns, fractals, waves, particles, charts, icons, and optimization.
UX/UI auditing skill for polishing visual details. Use when reviewing UI for polish issues, fixing micro-interactions, auditing visual consistency, or elevating design quality from "good" to "great". Focuses on the 20% of details that create 80% of perceived quality.
Polished SaaS landing page components. Use for number tickers/stats animations, logo marquees, bento grids, device mockups (iPhone, Safari), shimmer/rainbow buttons, typing effects. Professional marketing polish built on Framer Motion + Tailwind. For dramatic hero effects use Aceternity, for basic UI use shadcn.
Meta-cognitive reasoning specialist for evidence-based analysis, hypothesis testing, and cognitive failure prevention. Use when conducting reviews, making assessments, debugging complex issues, or any task requiring rigorous analytical reasoning. Prevents premature conclusions, assumption-based errors, and pattern matching without verification.
Implement OAuth 2.0 social login with Google, GitHub, and other providers. Handles token exchange, user creation, and account linking.
Validates Stories/Tasks with GO/NO-GO verdict, Readiness Score (1-10), Penalty Points, and Anti-Hallucination verification. Auto-fixes to reach 0 points, delegates to ln-002 for docs. Use when reviewing Stories before execution or when user requests validation.