數據科學

Generate optimized Apple App Store metadata recommendations with ASO best practices. Use this skill when analyzing app listings, optimizing metadata (title, subtitle, description, keywords), performing competitive analysis, or validating App Store listing requirements. Triggers on queries about App Store optimization, metadata review, or screenshot strategy.

Create and manage system design diagrams with Mermaid. Use for architecture, flows, data models, and business logic visualization.

Fetches ALL open issues from any GitHub repository using pagination and generates a comprehensive analysis including category breakdown, age distribution, stale issues (30+ days), top discussed issues, prioritization, and detailed recommendations for triage. Handles large repositories (5000+ issues) efficiently.

Root cause analysis for debugging. Use when bugs, test failures, or unexpected behavior have non-obvious causes, or after multiple fix attempts have failed.

Analyzes the codex cache and generates comprehensive statistics about cache performance, storage usage, and health status. Delegates to fractary CLI for cache analysis operations.

Build the strongest argument against your current position to test whether it survives serious critique. Use when: (1) asked to play devil's advocate or stress-test a proposal, (2) advocating for an approach without engaging its strongest objections, (3) preparing for stakeholders who will challenge the position, (4) high-stakes decision where overconfidence could be costly.

Generate a visual spec-to-code coverage map showing which code files are covered by which specifications. Creates ASCII diagrams, reverse indexes, and coverage statistics. Use after implementation or during cleanup to validate spec coverage.

Data analysis skill - statistics, aggregation, filtering

Automated validation results analysis for post-commit workflow. Triggers when user requests validation analysis, code review summary, or checking background validation results. Analyzes Biome, TypeScript, and AI review reports.

Generate custom reports, query reports, and script reports for Frappe applications. Use when creating data analysis and reporting features.

Build immersive 3D web experiences with Three.js - WebGL/WebGPU library for scenes, cameras, geometries, materials, lights, animations, loaders, post-processing, shaders (including node-based TSL), compute, physics, VR/XR, and advanced rendering. Use when creating 3D visualizations, games, interactive graphics, data viz, product configurators, architectural walkthroughs, or WebGL/WebGPU applications. Covers OrbitControls, GLTF/FBX loading, PBR materials, shadow mapping, post-processing effects (bloom, SSAO, SSR), custom shaders, instancing, LOD, animation systems, and WebXR. | Sử dụng khi: đồ họa 3D, hoạt hình 3D, WebGL, game, visualization.

Component skill for systematic data profiling and exploration in DataPeeker analysis sessions

Professional network graph analyst identifying Gladwellian superconnectors, mavens, and influence brokers using betweenness centrality, structural holes theory, and multi-source network reconstruction. Activate on 'superconnectors', 'network analysis', 'who knows who', 'professional network', 'influence mapping', 'betweenness centrality'. NOT for surveillance, discrimination, stalking, privacy violation, or speculation without data.

TAM/SAM/SOM analysis and competitive landscape mapping. Identifies beachhead markets and expansion opportunities with data-driven market sizing.

Use when the user asks to run Codex CLI (codex exec, codex resume) or references OpenAI Codex for code analysis, refactoring, or automated editing

Categorize complexity as essential domain requirements versus accidental implementation artifacts to avoid simplifications that break systems. Use when: (1) asked to simplify code without first distinguishing which complexity serves genuine domain requirements, (2) a proposed simplification includes "just" or "simply" without analysis of what would be lost or relocated, (3) abstractions that unify disparate concepts are evaluated without examining whether the domain differences matter, (4) complexity is discussed without distinguishing essential from accidental.

Analyzes your recent Claude Code chat history to identify coding patterns, development gaps, and areas for improvement, curates relevant learning resources from HackerNews, and automatically sends a personalized growth report to your Slack DMs.

Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Factory needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas | Sử dụng khi: tạo Excel, bảng tính, công thức, phân tích dữ liệu

Executes SonarCloud API queries via unified Python CLI. Use when checking quality gate status, searching issues (bugs, vulnerabilities, code smells), retrieving metrics (coverage, complexity), or viewing analysis history.

Screen US stocks for high-quality dividend opportunities combining value characteristics (P/E ratio under 20, P/B ratio under 2), attractive yields (3% or higher), and consistent growth (dividend/revenue/EPS trending up over 3 years). Supports two-stage screening using FINVIZ Elite API for efficient pre-filtering followed by FMP API for detailed analysis. Use when user requests dividend stock screening, income portfolio ideas, or quality value stocks with strong fundamentals.