Expert in navigating and manipulating git history. Covers finding bugs with bisect, understanding code evolution, recovering lost work, and rewriting history safely. Understands that git history...
When the user wants to edit, review, or improve existing marketing copy. Also use when the user mentions 'edit this copy,' 'review my copy,' 'copy feedback,' 'proofread,' 'polish this,' 'make this...
Automatic quality control, linting, and static analysis procedures. Use after every code modification to ensure syntax correctness and project standards. Triggers onKeywords: lint, format, check,...
Expert at building multi-language applications. Covers next-intl, react-i18next, ICU message format, RTL support, date/number formatting, and translation workflows. Use when "i18n,...
Systems programming specialist for Rust, ownership model, memory safety, concurrency, and performance optimizationUse when "rust, cargo, ownership, borrowing, lifetimes, rustc, tokio, async rust,...
Comprehensive PDF manipulation toolkit for extracting text and tables, creating new PDFs, merging/splitting documents, and handling forms. When Claude needs to fill in a PDF form or...
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes
Use when constructing portfolios, implementing mean-variance optimization, factor models, risk parity, or Black-Litterman allocation - covers modern portfolio theory and practical enhancementsUse...
Security and privacy specialist for differential privacy, encryption, and complianceUse when "privacy, encryption, differential privacy, PII, GDPR, CCPA, access control, audit trail, data...
World-class UX design expertise combining Don Norman's human-centered principles, IDEO's design thinking methodology, and the product intuition developed from studying thousands of user sessions....
Modern JavaScript/TypeScript development with Bun runtime. Covers package management, bundling, testing, and migration from Node.js. Use when working with Bun, optimizing JS/TS development speed,...
Specialist in creating size-optimized real-time audio-visual demos and procedural artUse when "demoscene, size coding, 64k intro, 4k intro, 1k intro, tiny code, shader golf, shader minification,...
Email has the highest ROI of any marketing channel. $36 for every $1 spent. Yet most startups treat it as an afterthought - bulk blasts, no personalization, landing in spam folders. This skill...
Comprehensive expertise in blockchain data analysis using Dune Analytics, custom indexers, and on-chain data querying. Covers SQL for blockchain, dashboard creation, protocol metrics, and alpha...
Patterns for multi-sensor data fusion including Kalman filters (KF, EKF, UKF), complementary filters, particle filters, and factor graph optimization. Covers state estimation, covariance tuning,...
Expert in designing and implementing visceral, satisfying combat systems. Masters hitbox/hurtbox design, frame data, combo systems, enemy archetypes, damage feedback, and the invisible craft that...
Use when facing 2+ independent tasks that can be worked on without shared state or sequential dependencies
Comprehensive expertise in automated crypto trading systems, including DEX sniping bots, arbitrage strategies, MEV protection, Telegram trading bots, and anti-rug protection. Use when "trading...
The ultimate brand asset: a consistent, explorable universe generated by AI. This skill covers creating coherent brand worlds, consistent characters, architectural spaces, and visual universes...
Keeping codebases healthy, performant, and maintainable - refactoring, performance optimization, and technical debt managementUse when "refactor, optimize, performance, technical debt, cleanup,...