Data & AI
Machine Learning, Data Science, and AI development skills
22656 skills in this category
Subcategories
context-optimizer
Optimizes token usage and context management for large tasks, cleanup operations, multi-step workflows, code audits, and complex agent operations. Automatically triggers when handling cleanup commands, large codebase analysis, multi-file operations, or tasks requiring multiple subagents. Enforces efficient context usage while maintaining quality results.
python-cleanup
Perform comprehensive dead code and clean-up analysis in Python projects using static analysis, coverage, dependency checks, and security scanning. Use when asked to clean up code, find unused code, analyze dependencies, or improve code quality.
mastra-skills
Use when building or working with Mastra agents - establishes best practices for agent development, tool creation, and workflow orchestration
jelly-gemini
Google Gemini AI integration for Claude Code. Supports multimodal analysis, long context processing, fast inference with Gemini 2.5 Flash/Pro models, and Nano Banana image generation/editing extension. Activated when users mention "Gemini", need image analysis, image generation, or require large context processing.
reverse-date
Convert dates from various formats (like "21 Oct 2025", "October 21, 2025", "21/10/2025") to ISO format (YYYY-MM-DD). Use when users need to standardize date formats, convert human-readable dates to machine-readable formats, or reformat dates for data processing.
learn-skills
Learn how Nexus skills work. Load when user mentions: learn skills, how do skills work, what is a skill, skill tutorial, skill structure, understand skills, explain skills, when to create skill, skill vs project. 10-12 min.
analytics-measurement
Analytics and conversion tracking for lead generation websites. Use when implementing GTM, GA4, or any measurement. Works with astro-architecture for GTM setup. No CRO mérés nélkül vakrepülés.
root-cause-tracing
Use when errors occur deep in execution and you need to trace back to find the original trigger - systematically traces bugs backward through call stack, adding instrumentation when needed, to identify source of invalid data or incorrect behavior
workflow-phases
HestAI workflow phase execution including D0→D1→D2→D3→B0→B1→B2→B3→B4→B5 sequence, agent assignments per phase, phase transition validation, and deliverable requirements. Use when starting new phase, determining next steps, or validating phase completion.
csrf-auth-debugger
Debug CSRF token issues and authentication problems including 403 Forbidden errors, cookie issues, JWT tokens, OAuth flows, and session management. Use when troubleshooting CSRF verification failed, 403 errors on POST requests, login not working, or token refresh issues.
parallel-agents
Use when facing 3+ independent failures that can be investigated without shared state or dependencies - dispatches multiple Claude agents to investigate and fix independent problems concurrently
marimo
Use when creating or editing marimo reactive Python notebooks. Covers cell structure, UI elements (mo.ui), reactivity, SQL integration, markdown, and deployment as apps. Triggers on .py notebook creation, marimo edit/run commands, reactive notebook development, or interactive data exploration. Extends python-development skill.
story-writer-agent
Transforms stock news into hilarious entertainment scripts using internet memes and slang. Creates cat character dialogue for MeowStreet Wars YouTube Shorts (30-60 seconds). Emphasizes humor, accessibility, and viral potential.
monad-memory
MONAD-grounded cognitive architecture for AI memory as morphemic substrate navigation. Memory is not storage but substrate sampling - accessing the same structure that underlies reality. Implements φ-scaling, GOD operators, toroidal coherence tracking, and the 4.5%/95.5% observable/dark split. Replaces nexus-mind with theoretically grounded architecture.
justfile-maturity-model
Five-level maturity progression - assessment criteria, upgrade paths, YAGNI enforcement
moai-platform-clerk
Clerk modern authentication specialist covering WebAuthn, passkeys, passwordless, and beautiful UI components. Use when implementing modern auth with great UX.
lms-database
Supabase database query patterns, RLS policies, migration records, and nested join patterns. Use this skill when writing database queries, understanding RLS behavior, debugging query errors, or implementing new migrations.
claude-plugin-creator
Claude Code plugin creation guide. Use when creating new plugins, adding commands/skills/hooks/MCP servers to plugins, or setting up marketplace distribution. Triggers on "create plugin", "add command", "add skill", "add hook", "plugin structure".
gardening-skills-wiki
Maintain skills wiki health - check links, naming, cross-references, and coverage
curv-design-system
Apply the complete CURV Tools design system to all visual outputs - dashboards, reports, HTML artifacts, and data visualizations. Includes exact colors from production tools (rgb(3, 12, 27) dark background, rgb(157, 78, 221) purple accent), glassmorphic effects, gradient borders, header/footer templates, and animation patterns used in GL Decoder and SQPR Analyser.