productivity▌

JWT authentication and authorization for Spring Boot 3.5.x with token generation, refresh strategies, and role/permission-based access control. \n \n Covers token generation with JJWT, Bearer/cookie authentication, and stateless session management using Spring Security 6.x \n Supports database-backed and OAuth2 provider integration (Google, GitHub) with modern SecurityFilterChain configuration \n Includes refresh token rotation, token blacklisting, and key rotation strategies for production secu

Migrate Flutter apps from Material 2 to Material 3 with automated component and theme updates. \n \n Identifies and replaces deprecated Material 2 components (FlatButton, RaisedButton, BottomNavigationBar, Drawer) with their Material 3 equivalents using a decision tree \n Converts legacy theme properties to Material 3 ColorScheme and removes deprecated accent color references (accentColor, accentColorBrightness, etc.) \n Normalizes all component themes to use *ThemeData classes and ensures useMa

Professional infographics combining 21 layout types with 20 visual styles for publication-ready output. \n \n Choose from 21 layouts (bento-grid, hierarchical-layers, timeline, funnel, venn-diagram, etc.) and 20 styles (craft-handmade, cyberpunk-neon, technical-schematic, pixel-art, etc.) to match your content structure and visual tone \n Analyzes input content, recommends layout×style combinations, and generates structured markdown before image creation \n Supports custom aspect ratios (landsca

Remove visible Gemini AI watermarks from images using reverse alpha blending. \n \n Provides a Python CLI tool that strips the bottom-right Gemini watermark without requiring HTML or server-side components \n Uses pre-captured watermark alpha maps (48px and 96px variants) and reverse alpha blending to reconstruct the underlying image \n Supports any image format that Pillow can read and write, with output format inferred from file extension \n Includes detailed algorithm documentation covering d

Web exploitation techniques for CTF challenges covering injection, authentication, access control, and client-side attacks. \n \n Covers 20+ attack categories: SQLi, XSS, SSTI, SSRF, XXE, command injection, path traversal, JWT/OAuth/SAML, prototype pollution, deserialization, file upload RCE, and race conditions \n Includes quick-reference payloads, filter bypasses, and multi-stage exploitation chains with real CTF examples (HTB, Pragyan, Nullcon) \n Supporting markdown files detail server-side

Detects and removes AI writing patterns to make text sound more natural and human. \n \n Identifies 20+ AI-specific patterns including overused symbolic language, propaganda phrasing, excessive dashes, three-item lists, vague attribution, and filler words \n Rewrites problematic sections while preserving core meaning, tone, and voice across formal, casual, and technical contexts \n Emphasizes injecting genuine personality—varied sentence rhythm, direct statements, first-person perspective where

Only validate fields with cardinality starting with "1" as required.

This skill fetches OHLCV data from Yahoo Finance via yfinance and computes technical indicators locally (no API key required).

Text extraction from images using six OCR engines with preprocessing, cloud APIs, and structured output. \n \n Supports six OCR tools with decision tree: Tesseract and EasyOCR for local processing, PaddleOCR for CJK and tables, Google Vision and AWS Textract for cloud accuracy, Claude Vision for semantic understanding \n Includes full preprocessing pipeline (grayscale, deskew, denoise, binarization, morphological cleanup) to maximize accuracy on real-world images \n Provides Python and Node.js i

Implement comprehensive security hardening with defense-in-depth strategy through coordinated multi-agent orchestration: