Development

Browser automation, debugging, and performance analysis using Puppeteer CLI scripts. Use for automating browsers, taking screenshots, analyzing performance, monitoring network traffic, web scraping, form automation, and JavaScript debugging.

python-telegram-bot library for building Telegram bots. Use for handlers, callbacks, inline keyboards, conversations, and bot commands.

Implement error tracking, performance monitoring, and user issue detection. Use when adding error handling, Web Vitals reporting, or debugging production issues.

Harden code and pipelines for production. Use when the user asks for production-ready code, hardening, release readiness, performance, monitoring, or reliability.

Create interactive analytics dashboards with React components from drizzle-cube/client. Use when building dashboards, configuring portlets, setting up grid layouts, or creating analytics UIs with drizzle-cube React components.

Use this skill when writing Ruby code following the RuboCop Community Ruby Style Guide. Provides comprehensive guidance on idiomatic Ruby patterns, method design, class structure, collections, strings, exceptions, and testing. Covers Sandi Metz rules, duck typing, metaprogramming guidelines, and RuboCop enforcement. Appropriate for any task involving .rb files, Ruby code reviews, refactoring, Rails development, or implementing Ruby best practices.

Teaches migration from forwardRef to ref-as-prop pattern in React 19. Use when seeing forwardRef usage, upgrading React components, or when refs are mentioned. forwardRef is deprecated in React 19.

Wrap third-party libraries for testability and replaceability. Use when integrating external APIs, creating testable code, or building swappable implementations.

Comprehensive Vue 3 frontend development skill. Use when developing Vue 3 applications, components, or composables. Covers: (1) Creating new Vue 3 projects and components, (2) Vue 2 to Vue 3 migration, (3) Code review and optimization, (4) Composition API implementation, (5) Best practices and common patterns, (6) TypeScript integration, (7) State management with Pinia, (8) Performance optimization. Includes component templates, composable examples, migration guides, and best practices documentation.

Generate new Claude Code skills following official best practices. Use when user requests "create a skill" or "make a skill" for automating workflows or tasks.

10 ready-to-use themes with colors and fonts for consistent styling.Use when: applying visual themes to pages, components, or design systems.Triggers: "theme", "color palette", "color scheme", "fonts", "branding","visual identity", "design system colors".

Storage management for Bazzite. Automounting drives (BTRFS/EXT4, Framework, SteamOS),BTRFS deduplication, rmlint disk trimming, and snapper snapshots. Use when usersneed to configure disk and partition management.

Creates Playwright test scripts from natural language user flow descriptions. This skill should be used when generating E2E tests from scenarios, converting user stories to test code, recording user flows, creating test scripts from descriptions like "user signs up and creates project", or translating acceptance criteria into executable tests. Trigger terms include playwright test, e2e flow, user scenario, test from description, record flow, user journey, test script generation, acceptance test, behavior test, user story test.

AI-powered Telemetry Validator Agent that verifies instrumentation works in sandbox environments. Use when: (1) Validating OTel spans are emitted correctly, (2) Verifying correlation headers in Kafka messages, (3) Confirming OpenLineage events for data pipelines, (4) Generating validation evidence for merge approval. Triggers: "validate telemetry", "verify instrumentation", "check OTel spans", "validate correlation headers".

Troubleshoots infrastructure and application configuration items in Mission Control by diagnosing health issues, analyzing recent changes, and investigating resource relationships. Use when users ask about unhealthy or failing resources, mention specific config items by name or ID, inquire about Kubernetes pods/deployments/services, AWS EC2 instances/volumes, Azure VMs, or other infrastructure components. Also use when investigating why a resource is down, stopped, degraded, or showing errors, or when analyzing what changed that caused an issue.

Add SQLite database to Flask or Sinatra app with beginner-friendly code examples and teaching comments

Convert measurement systems, format dates/times/numbers/currency by locale, adapt address formats, and handle locale-specific sorting. Use when localizing technical content for regions. Activates on "localization", "date format", "measurement conversion", or "locale adaptation".

Write meaningful code comments that explain WHY rather than WHAT, focusing on business logic, non-obvious solutions, workarounds, and complex algorithms while keeping code self-documenting. Use this skill when adding comments to explain rationale, documenting complex business logic, explaining workarounds or temporary solutions, describing performance optimizations, writing function documentation (JSDoc, docstrings, XML docs), or reviewing code for appropriate commenting. Apply when working on any code file that contains logic requiring explanation, public API functions, complex algorithms, security-critical code, or architectural decisions. This skill ensures comments explain rationale not implementation (WHY not WHAT), self-documenting code through clear naming (refactor unclear code instead of commenting), concise and evergreen comments (no who/when dated comments - Git tracks this), links to external resources for context, proper function documentation format (JSDoc for TS/JS, docstrings for Python, XML d

Deconstructs complex problems using the 'Polymath Investor' framework with a 5-step cognitive chain (First Principles → Modular Isolation → Pareto Filtering → Cross-Domain Mapping → Dynamic Zooming). Use when analyzing systems, architectures, businesses, or learning challenges; when seeking high-leverage insights or 'Alpha'; when applying first principles thinking; or when needing cross-disciplinary perspectives to reveal blind spots. Transforms overwhelming complexity into actionable levers.

Manage staff-institution mapping table for vehicle insurance platform. Use when updating mapping files, resolving name conflicts, converting Excel to JSON, or checking mapping coverage. Mentions "update mapping", "staff conflicts", "mapping table", or "institution assignment".