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Ability to design, analyse, test, and maintain mechanical systems and components that meet defined functional, safety, and performance requirements. Includes applying engineering principles to materials, structures, thermodynamics, fluid mechanics, and motion systems; producing and interpreting technical designs and specifications; validating designs through analysis and testing; and supporting manufacture, operation, and lifecycle management. Applies across industrial, infrastructure, energy, manufacturing, and product contexts and is independent of specific tools or industries, with human accountability retained for safety, compliance, and outcomes.

Laravel Dusk - Browser automation and testing API for Laravel applications. Use when writing browser tests, automating UI testing, testing JavaScript interactions, or implementing end-to-end tests in Laravel.

Write technical content for the Physical AI textbook including chapters, examples, code snippets, and exercises. Use when creating new chapters, writing module content, adding code examples, or creating assessments.

AI-driven development planning skill that produces TDD-ready specifications using research-backed methodologies (Plan-then-Act, Reflexion, ToT/LATS, ReAct).USE THIS SKILL PROACTIVELY when:- User requests a feature implementation- User reports a bug that needs fixing- User asks for code refactoring- Task involves multiple files or components- Requirements need clarification before coding- You need to create a comprehensive development planThis skill implements the complete planning pipeline: repo analysis → test-first design → structured plan generation → self-critique → TDD handover specification.OUTPUT: Structured TDD Handover Spec (JSON + Markdown) ready for TDD agent consumption.

Creates plan.md, task.md, persona.md, project-context.md, and CLAUDE.md for new self-learning resource projects. Use when: (1) /init-project command is invoked, (2) setting up a new tutorial/guide/documentation project, (3) structure-designer agent needs templates for learning resource structure design. Provides hierarchical Part/Chapter/Section templates with page allocation.

Python development expert. Activates when writing Python code (.py files), discussing Python frameworks (FastAPI, Django, Flask), or Python-specific questions. Provides modern Python 3.10+ patterns, type hints, async/await best practices, and Pythonic code.

Takes a data model providede as JSON schema and converts it to mermaid chart code

Get official Claude Code documentation. Use when the user asks about Claude Code features OR when you need to create/implement plugins, skills, hooks, subagents, slash commands, or MCP servers. Always retrieve documentation BEFORE implementing any Claude Code feature. Topics include configuration, settings, deployment, and troubleshooting.

Extract text from PDF files with intelligent chunking and metadata preservation. Use for processing technical documents, standards libraries, research papers, or any PDF collection requiring text extraction.

Evidence framework data dashboard with DuckDB. Write SQL in markdown to create visualizations.

Use when creating or developing anything, before writing code or implementation plans - refines rough ideas into fully-formed designs through structured Socratic questioning, alternative exploration, and incremental validation

Creates Claude Code Skills using a structured 6-phase workflow. Use when building skills, writing SKILL.md, designing skill architecture, or testing skill triggers. DO NOT use for general Claude Code docs or one-off tasks.

Optimize queries by selecting only required fields and avoiding N+1 problems. Use when writing queries with relations or large result sets.

Analyze, monitor, and improve CRAP (Change Risk Anti-Patterns) scores for untested complex code. Use when users want to: (1) Reduce technical debt and code risks, (2) Identify high-risk methods that need test coverage, (3) Validate CRAP thresholds for quality gates, (4) Generate coverage reports focused on complex methods, (5) Implement test coverage improvements to lower CRAP scores, or (6) Set up automated code quality monitoring based on CRAP metrics. **CRITICAL CONSTRAINT**: Code is in production and CANNOT be modified - CRAP reduction focuses ONLY on adding test coverage.

Create world-class PowerPoint presentations with professional design, consistent branding, sophisticated animations, and polished visual hierarchy. Use when users request presentations, slide decks, pitches, reports, or want to convert markdown to professionally designed PowerPoint with Apple/Microsoft/Google-level quality.

Coordinate multi-agent software development from requirements through verified implementation using spec-driven workflows. Use when planning features, creating technical specifications, implementing complex tasks through specialized agents, or managing spec-dev workflows (PLAN/BUILD/ITERATE).

System architecture design for Rust/WebAssembly projects. Creates ADRs,designs APIs, plans module structures, and documents architectural decisions.Never writes implementation code - focuses purely on design and documentation.

Comprehensive SaaS architecture planner for Next.js + Supabase applications. Converts ideas into production-ready technical plans with database schemas, file structures, feature breakdowns, and week-by-week development roadmaps. Use when planning subscription-based applications, multi-tenant SaaS products, or building from idea to launch.

Rebuild the wikilink entities cache. Triggers on "rebuild cache", "rebuild wikilink cache", "update cache", "refresh wikilinks". Optionally uses Flywheel MCP for enhanced entity detection.

REST and GraphQL API design best practices including HTTP methods, status codes, and documentation.