A full end-to-end Kaggle competition skill. Use this skill whenever a user mentions a Kaggle competition, ML contest, data science challenge, or competitive modeling event — even casually (e.g., "I joined a Kaggle competition", "help me with this ML challenge", "I want to climb the leaderboard"). This skill guides a solo competitor or team through every phase: competition intake, dataset access, exploratory data analysis, feature engineering, model development, ensembling, and final submission. Adapts to the user's proficiency level. Works in Claude Code, Claude.ai, and any coding agent that supports skills. Trigger this skill even when the user only mentions one phase (e.g., "help me with EDA for my Kaggle comp") — always load the full skill to understand context and jump in at the right phase.

Autonomous web intelligence agent that monitors GitHub Trending, Hacker News, and Dev.to using WunderGraph and Redis, then publishes ranked signal reports to Ghost with paid membership monetization. Use when building agents that do real work on the open web.

Use this skill to scan URLs and inbox messages for scams targeting older adults, monitor an inbox autonomously, publish results to cited.md, and enforce x402-style payment rails for ElderShield.

Do a quick UI polish pass on a component or page to make it look more professional. Use when the user says "make this look better", "polish the UI", "it looks ugly", or right before a demo.

Builds an autonomous iterative research loop that narrows a wide uncertainty/exposure range toward a user-defined target by issuing Google searches, extracting evidence from results, re-estimating the range from accumulated evidence, and repeating until converged. Use when the user wants to implement autonomous research that progressively reduces uncertainty toward a quantified goal — risk analysis, market sizing, due diligence, literature review, or any domain where a wide estimate must be narrowed with real evidence.

Develops and operates the Nexus research cockpit: FastAPI + TinyFish live agent, Redis streams/pub-sub, WunderGraph Cosmo GraphQL subscriptions, React D3 graph. Use when editing Nexus, sessions, tinyfish_runner, discovery, final report, normalization, embeddings, or graph UI.

Hackathon MVP for an entity intelligence cache — query → Redis semantic cache → Ghost (Postgres) entities → Tinyfish Search + mock retrieval → distillation → deltas → synthesis; optional Senso KB publish for cited.md pipeline.

Use when adding MFA, 2FA, TOTP, SMS codes, push notifications, passkeys, or when requiring step-up verification for sensitive operations or meeting compliance requirements (HIPAA, PCI-DSS) - covers adaptive and risk-based authentication with Auth0.

GraphQL Federation skill for creating correct federation subgraphs. Use when: (1) Creating new federation subgraphs, (2) Adding entities with @key directives, (3) Extending types across subgraphs, (4) Using federation directives (@shareable, @external, @override, @provides, @requires, @inaccessible, @interfaceObject, @authenticated, @requiresScopes), (5) Debugging composition errors, (6) Understanding federation rules and patterns. MANDATORY TRIGGERS: federation, subgraph, @key, entity, federated graph, supergraph, GraphQL composition, router schema

Sets up and operates Airbyte Agent Connectors — strongly typed Python packages for accessing 51+ third-party SaaS APIs through a unified entity-action interface. Supported services include Salesforce, HubSpot, Stripe, GitHub, Slack, Jira, Shopify, Zendesk, Google Ads, Notion, Linear, Intercom, Gong, and 36 more connectors spanning CRM, billing, payments, e-commerce, marketing, analytics, project management, helpdesk, developer tools, HR, and communication platforms. Make sure to use this skill when the user wants to connect to any SaaS API, install an airbyte-agent connector package, integrate third-party service data into a Python application or AI agent, query or search records from any supported service, or configure Airbyte MCP tools for Claude. Covers Platform Mode (Airbyte Cloud) and OSS Mode (local Python SDK).

Browse, organize, and manage the Senso knowledge base folder tree. Create folders, move and rename nodes, view content details, download files, and check sync status. Use when the user wants to structure, reorganize, or explore their KB.

Use when adding authentication to Next.js applications (login, logout, protected pages, middleware, server components) - supports App Router and Pages Router with @auth0/nextjs-auth0 SDK.

Operate Railway infrastructure: create projects, provision services and databases, manage object storage buckets, deploy code, configure environments and variables, manage domains, troubleshoot failures, check status and metrics, and query Railway docs. Use this skill whenever the user mentions Railway, deployments, services, environments, buckets, object storage, build failures, or infrastructure operations, even if they don't say "Railway" explicitly.

Use when securing Fastify API endpoints with JWT Bearer token validation, scope/permission checks, or stateless auth - integrates @auth0/auth0-fastify-api for REST APIs receiving access tokens from frontends or mobile apps.

Autonomous multi-source security intelligence agent. Scans GitHub PRs for vulnerabilities using cross-source context from Slack and codebase architecture. Finds risks that single-source scanners miss by correlating data across tools.

Scaffold a complete full-stack feature — API route, DB query, TypeScript types, and frontend component — in one shot. Use when the user says "add a [feature]", "I need a [thing] page", or "scaffold [X]" and wants everything wired up fast.

Audit all environment variable usage in the codebase and generate a complete, documented .env.example. Use when the user says "what env vars do I need?", "document the config", "set up .env.example", or when onboarding someone new to the project.

the best framework to build agent for claude code.

Write an enthusiastic, well-structured PR description for the current changes. Use when the user is about to open a pull request and says "write a PR description", "describe these changes", or "hype up this PR".