productivity▌

This skill helps you discover and install skills from the open agent skills ecosystem.

Statistical modeling, experimentation, causal inference, and production ML systems for data-driven decision-making. \n \n Covers experiment design, A/B testing, feature engineering, model evaluation, and causal analysis with Python, R, SQL, and Scala \n Includes production patterns for scalable data processing, ML model deployment, and real-time inference with monitoring and drift detection \n Supports MLOps best practices: automated retraining, feature stores, model serving, canary deployments,

Clear, effective data visualizations with chart selection rules, design principles, and storytelling techniques. \n \n Covers 10+ chart types with decision rules for when to use each (line for time series, bar for comparison, scatter for correlation, heatmap for patterns) \n Design guidelines for axes, color theory, typography, and annotations including colorblind-safe palettes and a strong stance against pie charts \n Includes ready-to-run Python/matplotlib recipes for line charts, bar charts,

Detect and remove AI-generated patterns from Finnish text to match native speaker voice. \n \n Identifies 26 patterns across Finnish-specific structures (passive overuse, missing particles, translation calques, genitive chains) and universal markers (hedging, filler phrases, artificial enthusiasm) \n Preserves meaning, register, and technical content while replacing AI patterns with natural Finnish constructions \n Includes adaptive workflow: analyzes short texts directly, flags patterns in long

Download Douyin videos and extract metadata using browser automation. \n \n Supports both short links (v.douyin.com) and full Douyin URLs for video retrieval \n Extracts video metadata including title, author, and engagement statistics \n Offers flexible output modes: full video download or metadata-only extraction with custom output directories \n Requires one-time interactive login setup to establish authenticated browser session \n

Build reliable webhook systems with event delivery, signature verification, retry logic, and dead-letter handling for asynchronous integrations.

PostgreSQL code review assistant covering JSONB, arrays, custom types, schema design, and security best practices. \n \n Reviews JSONB operations for indexing efficiency, array usage with GIN indexes, and proper containment operators \n Evaluates schema design including ENUM types, CITEXT for case-insensitive data, TIMESTAMPTZ usage, and CHECK constraints \n Identifies anti-patterns in function optimization, trigger design, and extension usage \n Assesses Row Level Security (RLS) implementation,

Image generation and editing via OpenRouter's Gemini 3 Pro model with multi-image compositing support. \n \n Supports three workflows: prompt-only generation, single-image editing, and multi-image composition (up to 3 images per request) \n Output resolution options: 1K, 2K, or 4K (defaults to 1K) \n Customizable behavior through optional system prompt template in assets/SYSTEM_TEMPLATE \n Requires OPENROUTER_API_KEY environment variable and uv package manager; includes troubleshooting guidance

Idiomatic Kotlin patterns and best practices for building robust, efficient, and maintainable applications.

Provide a comprehensive, structured reference for the 100 most critical web application vulnerabilities organized by category. This skill enables systematic vulnerability identification, impact assessment, and remediation guidance across the full spectrum of web security threats. Content organized into 15 major vulnerability categories aligned with industry standards and real-world attack patterns.