ranked-gym
Gamify your gym sessions with XP, levels, achievements, and workout streaks
gaming-ui-state-management
Patterns for game-like interfaces - health bars, XP bars, mana bars. Apply when building RPG/retro gaming UI components with state-driven visuals.
actionbook
Access pre-computed website action manuals containing page descriptions, functionality, DOM structure, and element selectors for browser automation. Use when you need CSS/XPath selectors for UI elements, building browser-based AI agents, or looking up how to interact with a website's UI.
ui-design-styling
Design and style UI components for ryOS following the four OS themes (System 7, macOS Aqua, Windows XP, Windows 98). Use this when creating UI components, styling elements, working with themes, adding visual effects, or implementing retro OS aesthetics.
xpath-injection-testing
XPath注入漏洞测试的专业技能和方法论
cloudflare-browser-rendering
Add headless Chrome automation with Puppeteer/Playwright on Cloudflare Workers. Use when: taking screenshots, generating PDFs, web scraping, crawling sites, browser automation, or troubleshooting XPath errors, browser timeouts, binding not passed errors, session limits, page.evaluate __name errors, or waitForSelector timeout issues.
xps-surface-analyzer
X-ray Photoelectron Spectroscopy analysis skill for surface composition, chemical state, and depth profiling
surface-analysis
Skill for surface composition, chemical state, and topography analysis including XPS depth profiling, AFM imaging, and contact angle measurements
bio-population-genetics-selection-statistics
Detect signatures of natural selection using Fst, Tajima's D, iHS, XP-EHH, and other selection statistics. Calculate population differentiation, test for departures from neutrality, and identify selective sweeps with scikit-allel and vcftools. Use when computing selection signatures like Fst or Tajima's D.
injection-testing
Validate miscellaneous injection vulnerabilities NOT covered by dedicated skills. Covers SSTI, LDAP, XPath, XQuery, CRLF/HTTP Header, Email Header, GraphQL, Expression Language (EL/OGNL), JSON/JavaScript eval injection, ORM/HQL, CSV/Formula, Regex (ReDoS), YAML config, and Shellshock-style injection. Use when testing CWE-1336 (SSTI), CWE-90 (LDAP), CWE-643 (XPath), CWE-652 (XQuery), CWE-93/CWE-113 (CRLF/Header), CWE-917 (EL), CWE-94/CWE-95 (Code/Eval injection), CWE-1333 (ReDoS), CWE-1236 (CSV/Formula), and related injection classes.
qe-xp-practices
Apply XP practices including pair programming, ensemble programming, continuous integration, and sustainable pace. Use when implementing agile development practices, improving team collaboration, or adopting technical excellence practices.
xp-practices
Apply XP practices including pair programming, ensemble programming, continuous integration, and sustainable pace. Use when implementing agile development practices, improving team collaboration, or adopting technical excellence practices.
agent-browser
A comprehensive skill for using agent-browser, a CLI tool for browser automation designed for AI agents, developed by Vercel Labs. This skill covers installation, core commands, selectors (refs, CSS, XPath, semantic locators), agent mode, sessions, options, and best practices. Use this skill whenever the user needs to automate browser interactions via CLI commands, especially for AI agents that need to interact with web pages.
macOS Developer
Expert in macOS app development using AppKit, SwiftUI for Mac, and XPC. Specializes in system extensions, menu bar apps, and deep OS integration.
progression-systems
Expert in designing compelling progression systems that create the "one more turn" hook while respecting player time. Deep knowledge of XP mathematics, skill-tree topology, reward-pacing psychology, and meta-progression loops. Draws on decades of ARPG evolution (Diablo, Path of Exile), roguelike innovation (Hades, Slay the Spire), and mobile design patterns. Use when "level up system, xp curve, skill tree, progression system, unlock system, prestige system, battle pass, new game plus, loot progression, power curve, meta progression, achievement system" are mentioned.
cloudflare-browser-rendering
Add headless Chrome automation with Puppeteer/Playwright on Cloudflare Workers. Use when: taking screenshots, generating PDFs, web scraping, crawling sites, browser automation, or troubleshooting XPath errors, browser timeouts, binding not passed errors, or session limits.
export-domain
Export SDTM domains to XPT or XML format
test-skill
Test skill for verifying the Skills system upgrade
symfony-css-selector
Convert CSS selectors to XPath expressions for parsing HTML/XML documents. Use familiar CSS selector syntax with XPath-based tools like DOMXPath and SimpleXMLElement, or integrate with DomCrawler for jQuery-like selector queries. Essential for web scraping, DOM manipulation testing, and document parsing.
web-dev
Guidance on web development best practices and modern front-end technology stacks
symfony-css-selector
Convert CSS selectors to XPath expressions for parsing HTML/XML documents. Use familiar CSS selector syntax with XPath-based tools like DOMXPath and SimpleXMLElement, or integrate with DomCrawler for jQuery-like selector queries. Essential for web scraping, DOM manipulation testing, and document parsing.
cloudflare-browser-rendering
Complete knowledge domain for Cloudflare Browser Rendering - Headless Chrome automation with Puppeteer and Playwright on Cloudflare Workers for screenshots, PDFs, web scraping, and browser automation workflows. Use when: taking screenshots, generating PDFs from HTML or URLs, web scraping content, crawling websites, browser automation tasks, testing web applications, managing browser sessions, performing batch browser operations, integrating with AI for content extraction, or encountering browser rendering errors, XPath selector errors, browser timeout issues, concurrency limits, memory exceeded errors, or "Cannot read properties of undefined (reading 'fetch')" errors. Keywords: browser rendering cloudflare, @cloudflare/puppeteer, @cloudflare/playwright, puppeteer workers, playwright workers, screenshot cloudflare, pdf generation workers, web scraping cloudflare, headless chrome workers, browser automation, puppeteer.launch, playwright.chromium.launch, browser binding, session management, puppeteer.sessions, puppeteer.connect, browser.close, browser.disconnect, XPath not supported, browser timeout, concurrency limit, keep_alive, page.screenshot, page.pdf, page.goto, page.evaluate, incognito context, session reuse, batch scraping, crawling websites
extreme-programming
Use when pair programming with humans - enforces XP values (communication, simplicity, feedback, courage, respect) to deliver high-quality software; push back on YAGNI violations regardless of seniority or sunk cost
Realm
A meta-visualization agent that visualizes agent ecosystems through gamification. Provides a Phaser 3–based 2D office simulation, real-time XP growth and rank-up effects, interactive HTML maps, character sheets, a quest board, and a badge system. Use it when you need to understand ecosystem status or boost team morale.
review-plan
XP-style plan review that identifies gaps, hidden assumptions, and critical misses. Triggers on 'review the plan' or '/review-plan'. Reviews plans for YAGNI violations, missing feedback loops, and over-engineering.
xplat-checks
Cross-platform compatibility checking tools. Detects path issues, line endings, environment variables, shell commands, and other patterns that break on Windows or Linux.
markdown-writer
Guidelines for creating Markdown documents. Used when creating or editing Markdown documents.
DuIvyTools Skills
CLI tool for visualizing and analyzing GROMACS MD simulation results. Use when Claude needs to: (1) visualize XVG data (RMSD, RMSF, energy, radius of gyration, hydrogen bonds), (2) display XPM matrices (DCCM, FEL, DSSP), (3) manipulate NDX index files, (4) calculate statistics or export data, and (5) generate Ramachandran plots.
git-committer
Guidelines for Git commits. Use before creating a commit.
java-dev
Guidelines for Java development. Used when writing Java code or running tests.
encounter-balance
This skill should be used when the user asks to "check encounter balance", "review CR", "is this too hard", "is this too easy", "balance my encounters", "encounter difficulty", "TPK check", "deadly encounter", "party level check", or mentions "challenge rating", "encounter math", or "XP budget". Analyzes module encounters against party composition using D&D 5e math to identify deadly, trivial, or unbalanced fights.
steering
A skill for recording the work plan and task list for each work instruction into documents. It is invoked/read during planning, implementation, and verification when triggered by user instructions.
reporting-doc-reviewer
Review materials used to report design details or analysis results to others. Used when reviewing documents prepared for reporting.
tdd-workflow
Used when developing new features, fixing bugs, or refactoring. Enforces test-driven development with unit, integration, and E2E tests while maintaining over 80% coverage.
duivyprocedures-skills
Guide for DuIvyProcedures (DIP), a YAML-driven batch molecular dynamics (MD) analysis tool. Use when Claude needs to perform MD analyses such as RMSD, RMSF, Gyrate, SASA, DCCM, PCA, FEL, dPCA, Hbond, DSSP, clustering, Density, DensityMap, RDF, RDCM, MSM, tICA, tSNE, UMAP, PiStacking, PiCation, SaltBridge, Hydrophobic Contact, and SPM. Ideal for: (1) running multiple analyses in a single command, and (2) processing multiple trajectories in batch. NOT for: visualizing existing XVG/XPM files without performing analysis (use duivytools-skills), or for learning analysis theory (use gromacs-protein-analysis).
plutus-protocol-overview
Comprehensive overview of Plutus — the multichain DeFi yield platform and Arbitrum-native governance aggregator. Covers plsASSETs, plvASSETs (vaults), tokenomics ($PLUTUS, $xPLUTUS), governance, and the community-led DAO structure. Use when explaining Plutus products, comparing governance aggregation strategies, or evaluating Plutus yield opportunities.
performing-soap-web-service-security-testing
Perform security testing of SOAP web services by analyzing WSDL definitions and testing for XML injection, XXE, WS-Security bypass, and SOAPAction spoofing.
testing-for-xml-injection-vulnerabilities
Test web applications for XML injection vulnerabilities including XXE, XPath injection, and XML entity attacks to identify data exposure and server-side request forgery risks.
Prompting
Meta-prompting system for dynamic prompt generation using templates, standards, and patterns. USE WHEN meta-prompting, template generation, prompt optimization, or programmatic prompt composition.
Evals
Agent evaluation framework based on Anthropic's best practices. USE WHEN eval, evaluate, test agent, benchmark, verify behavior, regression test, capability test. Includes three grader types (code-based, model-based, human), transcript capture, pass@k/pass^k metrics, and ALGORITHM integration.
Council
Multi-agent debate system. USE WHEN council, debate, perspectives, agents discuss. SkillSearch('council') for docs.
Apify
Social media scraping, business data, e-commerce via Apify actors. USE WHEN Twitter, Instagram, LinkedIn, TikTok, YouTube, Facebook, Google Maps, Amazon scraping.
xProof Certification
Proof and compliance primitive for AI agents on MultiversX. Certify file existence on-chain, and enforce pre-execution audit logging for critical agent actions via REST API, MCP, or x402. No proof = no action.
symfony-css-selector
Convert CSS selectors to XPath expressions for parsing HTML/XML documents. Use familiar CSS selector syntax with XPath-based tools like DOMXPath and SimpleXMLElement, or integrate with DomCrawler for jQuery-like selector queries. Essential for web scraping, DOM manipulation testing, and document parsing.
CreateSkill
Create and validate skills. USE WHEN create skill, new skill, skill structure, canonicalize. SkillSearch('createskill') for docs.
Recon
Security reconnaissance. USE WHEN recon, reconnaissance, bug bounty, attack surface. SkillSearch('recon') for docs.
Fabric
Intelligent prompt pattern system with 240+ specialized patterns for content analysis, extraction, and transformation. USE WHEN user says 'use fabric', 'fabric pattern', 'run fabric', 'update fabric', 'update patterns', 'sync fabric', 'extract wisdom', 'summarize with fabric', 'create threat model', 'analyze with fabric', OR any request to apply Fabric patterns to content.
_EMMA
Manage the Emma voice AI agent (Code Ninjas Lead Reactivation). USE WHEN analyze emma, emma agent, emma prompt, emma calls, emma transcripts, check emma, audit emma, update emma.