Pixel & Process UG (haftungsbeschränkt)

Use when the user needs Excel file manipulation — reading, writing, formulas, charts, conditional formatting, data validation, pivot tables, or large file handling. Trigger conditions: create Excel reports programmatically, read spreadsheet data, add formulas or charts, apply conditional formatting, perform data validation, generate pivot tables, handle CSV import/export, process large datasets in Excel format.

Use when creating new skills, commands, or agent definitions for Claude Code, including writing SKILL.md files, defining triggers, and testing skill behavior

Use when the user needs Playwright-based web application testing — screenshots, browser log analysis, interaction verification, visual regression, accessibility, and network mocking. Triggers: E2E test setup, visual regression testing, accessibility audit, Playwright configuration, page object model creation, CI test pipeline.

Use before claiming any task is complete, any feature works, or any bug is fixed - enforces fresh verification evidence through a 5-step HARD-GATE protocol that prevents false completion claims

Use when the user needs user research methodologies, persona development, journey mapping, usability testing plans, or information architecture analysis. Triggers: user says "user research", "persona", "journey map", "usability test", "card sort", "heuristic evaluation", "information architecture", "user interview", understanding user behavior.

Use when starting any conversation, receiving a new task, or when uncertain which skill applies - establishes how to find and use all 64 toolkit skills, requiring Skill tool invocation before ANY response including clarifying questions

Use when starting a new feature branch, creating isolated development environments, or working on multiple tasks simultaneously without stashing or switching branches. Triggers: user says "worktree", "new branch for work", "parallel development", "isolated environment", needs to work on two things at once.

Use when the user needs full UI/UX design intelligence — styles, palettes, fonts, UX guidelines, chart selection, and accessible, performant implementation across any supported stack. Triggers: user says "design", "UI", "UX", "color palette", "typography", "accessibility", "responsive design", "chart type", "style guide", building any user-facing interface.

Use when the user needs to build or maintain design tokens, component libraries, theme systems, or Tailwind CSS v4 configurations with responsive patterns. Triggers: user says "design system", "design tokens", "component library", "theme", "Tailwind config", "dark mode tokens", "color system", building reusable UI components.

Use when choosing a testing approach for a project — selecting frameworks, defining coverage thresholds, setting up test infrastructure, and establishing testing patterns. Triggers: new project setup, CI/CD pipeline design, coverage audit, test framework migration, quality standard definition.

Use when writing any new code, adding features, or fixing bugs that require code changes. Enforces strict RED-GREEN-REFACTOR cycle with no production code without a failing test first. Triggers: new feature implementation, bug fix, refactoring existing code, adding behavior to existing modules.

Use when generating or updating technical documentation from code — API references, architecture docs, README files, component documentation, getting started guides, or configuration references

Use when breaking work into discrete steps, tracking progress through multi-step implementations, or managing implementation task lists. Triggers when an approved plan needs to be converted into tracked tasks, when progress reporting is needed during execution, or when checkpoint reviews are required between task batches.

Use when hierarchical task breakdown is needed, when dependency mapping between tasks is required, when effort estimation and parallelization planning is needed, or when creating work breakdown structures. Triggers on /decompose command, when complex tasks need to be broken into manageable subtasks, when critical path analysis is needed for scheduling, or when identifying tasks that can run concurrently.

Use when encountering bugs, unexpected behavior, test failures, or errors during development. Enforces a rigorous 4-phase investigation process that prevents shotgun debugging. Triggers: test failure, runtime error, unexpected behavior, production incident, performance regression.

Use when executing multi-task plans where each task can be implemented independently by a subagent. Triggers when a plan has 3+ independent tasks, when speed of execution is important, when tasks have clear acceptance criteria suitable for delegation, or when two-stage review gates (spec compliance and code quality) are needed for iterative fix cycles.

Use when writing specifications for features, projects, or requirements — applies Jobs to Be Done (JTBD) methodology with acceptance criteria focus, no implementation details, and SLC release planning

Use when the user needs technical SEO audits, meta tag optimization, structured data markup, Core Web Vitals improvement, or search engine visibility enhancement. Trigger conditions: site audit request, meta tag review, Schema.org implementation, page speed optimization, indexability issues, sitemap or robots.txt configuration, hreflang setup, Open Graph or Twitter Card tags, rich snippet eligibility.

Use when the user needs prompt design, optimization, few-shot examples, chain-of-thought patterns, structured output, evaluation metrics, or prompt versioning. Triggers: new prompt creation, prompt optimization, few-shot example design, structured output specification, A/B testing prompts, evaluation framework setup.

Use when the user needs end-to-end TypeScript development — from database schema through API layer to UI — with tRPC, Prisma, Next.js, authentication, and deployment. Triggers: full-stack feature implementation, database-to-UI pipeline, tRPC router creation, Prisma schema design, auth setup, deployment configuration.

Use when the user needs production-grade React/Next.js/TypeScript development with rigorous component architecture, state management, performance optimization, and >85% test coverage. Triggers: React component development, Next.js page creation, state management design, frontend performance audit, component library setup.

Use when the user needs CI/CD pipelines, Docker configuration, Kubernetes deployment, infrastructure-as-code, monitoring, or zero-downtime deployment strategies. Triggers: user says "devops", "docker", "kubernetes", "CI/CD", "infrastructure", "monitoring", "deploy to production", "container", "terraform", "observability".

Use when the user needs ML pipelines, statistical analysis, data preprocessing, feature engineering, model selection, experiment tracking, or data visualization. Triggers: dataset exploration, model training, feature engineering, hyperparameter tuning, experiment tracking setup, statistical hypothesis testing, visualization creation.

Use when the user needs API design, microservices architecture, event-driven systems, database integration, caching strategies, or backend observability. Triggers: REST/GraphQL API implementation, service architecture design, message queue setup, rate limiting, health checks, OpenTelemetry integration.

Use when the user needs system design, architecture decision records, scalability analysis, trade-off evaluation, or non-functional requirements planning. Triggers: new system design, technology selection, scaling strategy, ADR creation, infrastructure topology, service boundary definition.

Use when starting work on a new or unfamiliar project, when encountering unexpected patterns, when user corrects your assumptions, or when explicitly invoked via /learn - auto-discovers and remembers project context through structured codebase analysis

Use when reviewing code for security vulnerabilities, implementing authentication or authorization, handling user input, managing secrets, or auditing dependencies for known CVEs. Triggers: auth implementation, input handling, secrets management, dependency audit, pre-deployment security check, OWASP compliance review.

Use when onboarding to an existing codebase that lacks specifications — exhaustively traces code paths and produces implementation-free behavioral specifications for safe refactoring, feature addition, or legacy modernization

Use when a task fails, an approach does not work, when encountering errors during implementation, or when tempted to say "I cannot do this" - ensures retry with at least 3 genuinely different approaches before escalating

Use when the user needs React-specific patterns — hooks, component composition, Server Components, error boundaries, rendering optimization, and testing strategies. Triggers: hooks design, component composition, Server vs Client component decision, error boundary placement, context optimization, rendering performance.

Use when reporting progress in autonomous loop iterations. Triggers at the end of every autonomous loop iteration, when the autonomous-loop skill completes a BUILD phase, when progress reporting is needed for monitoring or exit evaluation, or when producing machine-parseable RALPH_STATUS blocks with exit signal protocol.

Use when generating a Product Requirements Document from a high-level idea, feature request, or product vision — covers discovery questions, structured PRD drafting, section-by-section review, and transition to implementation planning

Use when starting any implementation task, feature request, bug fix, or refactoring work. Triggers on /plan command, before any code is written, when requirements need structured analysis, or when transitioning from brainstorming to implementation. Forces question-asking, approach comparison, and explicit approval before any code.

Use when writing modern PHP 8.x code — enums, fibers, readonly properties, PSR standards, Composer, static analysis, SOLID patterns. Trigger conditions: PHP code authoring, enum design, readonly DTO creation, PSR-4 autoloading setup, PHPStan or Psalm configuration, PHP CS Fixer or Pint setup, Composer dependency management, SOLID principle application, type safety improvements, custom exception hierarchies, interface-driven design.

Use when optimizing application performance, reducing load times, improving database queries, meeting performance budgets, or diagnosing bottlenecks in web applications or APIs. Triggers: slow page loads, poor Web Vitals, database timeouts, large bundle size, user-reported sluggishness, scaling preparation.

Use when the user needs PDF generation, manipulation, form filling, table extraction, OCR, merging, splitting, watermarking, or metadata handling. Trigger conditions: generate PDF reports, extract text or tables from PDFs, fill PDF forms programmatically, merge or split PDF files, add watermarks, OCR scanned documents, read or write PDF metadata, convert HTML to PDF.

Use when the user needs mobile app design and development patterns for React Native, Flutter, or SwiftUI — including platform HIG compliance, gestures, and offline-first architecture. Triggers: user says "mobile", "iOS", "Android", "React Native", "Flutter", "SwiftUI", "app design", "mobile navigation", "touch targets", "offline-first".

Use when the user needs to build MCP (Model Context Protocol) servers — tool definitions, resource management, prompt templates, transport layers, and client integration. Triggers: user says "MCP", "MCP server", "model context protocol", building tools for AI clients, creating AI integrations.

Use when validating subjective quality criteria that cannot be deterministically tested — applies LLM-based evaluation with structured rubrics for tone, aesthetics, UX feel, documentation quality, and code readability. Triggers: documentation quality check, error message tone review, UX copy evaluation, code readability assessment, design aesthetic review.

Use when building or maintaining Laravel applications — Eloquent ORM, Blade, Livewire, queues, Pest testing, middleware, service providers, migrations. Trigger conditions: Laravel project setup, Eloquent model design, Blade or Livewire component creation, queue/job implementation, Pest test writing, middleware configuration, migration authoring, route definition, Form Request validation, policy authorization, Sanctum/Passport authentication, Horizon queue monitoring.

Use when setting up or configuring Laravel Boost for AI-assisted development — package installation, MCP server configuration, guideline customization, skill authoring, documentation API integration. Trigger conditions: install Laravel Boost, configure MCP for IDE, create custom AI guidelines, write project-specific skills, verify MCP tool connectivity, update Boost after dependency changes, extend Boost for custom agents.

Use when the user needs help with conventional commits, semantic versioning, changelog generation, or commit message quality improvement. Triggers: user says "commit", "version bump", "changelog", "commit message", staging changes for commit, preparing a release.

Use when designing UI components, creating component architectures, implementing responsive layouts, setting up design systems, or selecting state management solutions for frontend applications

Use when completing work on a feature branch, preparing to merge, or cleaning up after development is done. Triggers: branch work is complete, user says "merge", "create PR", "finish branch", "done with this branch", ready for code review.

Use when the user needs project structure organization — monorepo patterns, feature-based architecture, naming conventions, barrel exports, or configuration placement. Trigger conditions: restructure project directories, set up monorepo, define naming conventions, create barrel exports, organize configuration files, plan migration from flat to feature-based structure, establish import ordering rules.

Use when you have an approved implementation plan document and need to execute it step by step. Triggers on /execute command, when transitioning from planning with an approved plan, or when resuming execution of a partially completed plan. Provides batch-based execution with TDD, checkpoint reviews, and verification gates.

Use when the user needs professional email drafting, tone adjustment, template creation, or communication strategy for business correspondence. Trigger conditions: draft professional email, adjust email tone, create email template, write cold outreach, compose follow-up, draft escalation email, write apology email, craft meeting request, compose status update, plan email communication strategy.

Use when the user needs Word document generation, template filling, formatting, mail merge, or DOCX manipulation using python-docx or docxtpl. Trigger conditions: generate Word documents programmatically, fill document templates with data, apply formatting (headings, tables, images, headers/footers), perform mail merge operations, convert DOCX to PDF, manage document styles.

Use when a task has multiple independent subtasks that can be executed concurrently by separate agents. Triggers when decomposed work has 2+ subtasks with no data dependencies, when subtasks operate on different files or codebase sections, when serial execution time would be significantly longer than parallel, or when independent analyses or deliverables need concurrent generation.

Use when setting up CI/CD pipelines, creating deployment configurations, generating deploy checklists, or configuring infrastructure. Triggers: new project needs deployment, migrating CI/CD provider, adding staging/production environments, automating release process, setting up monitoring for deploys.

Use when designing database schemas, creating migrations, modeling data relationships, optimizing database queries, adding indexes, or selecting between SQL and NoSQL storage

Use when the user needs research methodology, long-form content creation, academic-style citations, fact-checking, or evidence-based writing with proper source attribution. Trigger conditions: whitepaper drafting, research article writing, source evaluation, citation management, fact-checking protocol, case study creation, evidence-based argumentation.

Use when the user needs marketing copy, social media content, brand voice development, ad copy, newsletters, or persuasive writing for business audiences. Trigger conditions: social media post drafting, email campaign copy, landing page text, ad copy creation, brand voice definition, content calendar planning, headline writing, A/B test copy variations, newsletter composition.

Use when completing a task, implementing a feature, or before committing to verify work meets requirements and coding standards. Triggers: task completion, pre-commit check, pre-merge validation, plan alignment verification, post-refactor quality gate.

Use when the user needs code quality review, refactoring guidance, SOLID principles application, or help identifying and fixing code smells. Triggers: code smell detection, refactoring planning, naming convention review, complexity reduction, DRY analysis, error handling improvement.

Use when running autonomous loops, repeated operations, or when detecting stagnation patterns - enforces rate limits, protects configuration files, manages recovery with cooldown periods, and prevents infinite loops during autonomous development

Use when the user needs HTML Canvas, SVG graphics, data visualization, generative art, or interactive visual elements with D3.js or similar libraries. Triggers: user says "canvas", "SVG", "chart", "data visualization", "D3", "generative art", "animation", "interactive graphics", drawing on screen.

Use before any creative work - creating features, building components, adding functionality, or modifying behavior. Triggers on /brainstorm command, when exploring ideas before planning, when user describes a vague goal or feature request, or when design decisions need collaborative exploration. Explores user intent, requirements and design before implementation.

Use when running Ralph-style iterative autonomous development. Triggers on /ralph or /loop commands, when autonomous iterative development is needed, when a project has specs and an implementation plan ready for iterative execution, or when deterministic context loading with subagent delegation and dual-condition exit gates is required. Orchestrates PLANNING, BUILDING, and STATUS cycles.

Use when the system needs to track its own effectiveness, learn from errors, adapt workflows, and continuously improve performance - activates automatically every session to collect metrics, classify errors, recognize patterns, and implement evidence-based workflow improvements

Use when the user needs standalone HTML/CSS/JS artifacts — interactive demos, prototypes, single-file applications, or visual tools that run independently in a browser. Triggers: user says "artifact", "demo", "prototype", "single-file app", "HTML tool", "interactive widget", "standalone page", building something that runs in a browser without a build step.

Use when designing API endpoints, defining request/response schemas, generating OpenAPI specifications, choosing between REST/GraphQL/tRPC, or establishing API conventions for a project

Use when the user needs to build AI agents — tool use patterns, memory management, planning strategies, multi-agent coordination, evaluation, and safety guardrails. Triggers: user says "agent", "build an agent", "tool use", "agent loop", "multi-agent", "memory management", "guardrails", "agent evaluation".

Use when validating that implementation meets specification requirements — applies acceptance-driven backpressure with behavioral validation gates that prevent completion claims without passing tests. Triggers: spec-to-code validation, feature completion verification, pre-merge acceptance gate, release readiness check.