Development

Automatically assigns GitHub issues to appropriate GitHub Copilot agents based on issue type, labels, and content. Triggers on "assign agent", "who should work on this", "route this issue", or after creating issues via github-mcp-orchestrator.

Use when text contains vague language ("many", "substantially"), passive voice overuse, or lacks quantitative specificity - provides 30+ before/after examples for active voice, precise terminology, and appropriate hedging

Svelte reactive programming, stores, transitions, and building efficient SPAs.

Expert guide for testing Next.js applications with Playwright, Jest, and React Testing Library. Use when writing tests, debugging test failures, or setting up test infrastructure.

Use when the user asks to generate comprehensive feature documentation with verified test cases, create feature README with code evidence, or document a complete feature with test verification. Triggers on keywords like "feature documentation", "document feature", "comprehensive docs", "feature README", "test verification", "verified documentation".

Use when optimizing CLAUDE.md, AGENTS.md, custom commands, or skill files for Claude 4.5 models - applies documented Anthropic best practices systematically instead of inventing improvements

Create properly formatted Claude Code skills with YAML frontmatter, directory structure, and best practices. Use when creating new skills, converting documentation to skills, or learning how to write skills.

Multi-agent coordination, tier approvals, decision logging

Expert knowledge for deploying and operating Composable Rust applications in production. Use when setting up database migrations, configuring connection pools, implementing backup/restore procedures, tuning performance, setting up monitoring and observability, or handling operational concerns like disaster recovery and production database management.

Expert in managing GCP Groups (Google Cloud Identity and Azure AD) via the Groups API. **Use this skill whenever the user mentions 'groups', 'group members', 'add to group', or 'remove from group'.** Handles listing members (with file-based approach for large groups), adding/removing members, and checking membership. Uses ADM token authentication. **DO NOT use for ServiceNow groups.**

Comprehensive development workflow specialist combining TDD, debugging, performance optimization, code review, and quality assurance into unified development workflows

Generates RBS type signatures from Ruby source files. Triggers when creating type definitions, adding types to Ruby code, or generating .rbs files for classes/modules without existing RBS signatures.

[Extends frontend-developer] Vue 3 specialist. Use for Vue-specific features: Composition API, script setup, Pinia stores, Vue Router, Nuxt 3 SSR, Vitest. Invoke alongside frontend-developer for Vue projects.

This skill provides comprehensive guidance for learning and using GitHub, from fundamental concepts through practical workflows. Designed for complete beginners, this skill should be used when teaching GitHub concepts, explaining git workflows, debugging git/GitHub issues, or guiding through practical GitHub tasks like creating branches, commits, pull requests, and merging code.

Build tools, CSS architecture, and Git workflows for clemencefouquet.fr WordPress theme. Covers linting, @layer CSS, and sync between Laragon/Git/VPS.

Enterprise Claude Code context window optimization with 2025 best practices: aggressive clearing, memory file management, MCP optimization, strategic chunking, and quality-over-quantity principles for 200K token context windows.

Use when writing or running Python tests with pytest. Covers fixtures, mocking, parametrization, freezegun for time, and async testing. Triggers on test file creation, fixture design, mocking external dependencies, or test suite architecture. Extends python-development skill.

Expert guidance for writing database migrations using golang-migrate for the mediaz SQLite database. Covers migration creation, testing, rollback capability, data preservation, and mediaz-specific patterns. Activates when users mention migrations, schema changes, database alterations, or golang-migrate.

Enables AI agents to use Braintrust for LLM evaluation, logging, and observability.Includes scripts for querying logs with SQL, running evals, and logging data.

Design global error handling for the .NET 8 WPF widget host app: unhandled exceptions, UI error surfaces, crash reporting, and user-safe recovery. Use when wiring App.xaml.cs exception hooks, adding error boundaries in ViewModels, or integrating crash reporting services.