3D game development principles. Rendering, shaders, physics, cameras.

2D game development principles. Sprites, tilemaps, physics, camera.

Design thinking and decision-making for web UI. Use when designing components, layouts, color schemes, typography, or creating aesthetic interfaces. Teaches principles, not fixed values.

Documentation templates and structure guidelines. README, API docs, code comments, and AI-friendly documentation.

Production deployment principles and decision-making. Safe deployment workflows, rollback strategies, and verification. Teaches thinking, not scripts.

Database design principles and decision-making. Schema design, indexing strategy, ORM selection, serverless databases.

Code review guidelines covering code quality, security, and best practices.

Pragmatic coding standards - concise, direct, no over-engineering, no unnecessary comments

Socratic questioning protocol + user communication. MANDATORY for complex requests, new features, or unclear requirements. Includes progress reporting and error handling.

AI operational modes (brainstorm, implement, debug, review, teach, ship, orchestrate). Use to adapt behavior based on task type.

Bash/Linux terminal patterns. Critical commands, piping, error handling, scripting. Use when working on macOS or Linux systems.

Architectural decision-making framework. Requirements analysis, trade-off evaluation, ADR documentation. Use when making architecture decisions or analyzing system design.

Project scaffolding templates for new applications. Use when creating new projects from scratch. Contains 12 templates for various tech stacks.

Main application building orchestrator. Creates full-stack applications from natural language requests. Determines project type, selects tech stack, coordinates agents.

API design principles and decision-making. REST vs GraphQL vs tRPC selection, response formats, versioning, pagination.

libweb - Web extension utilities. authMiddleware validates JWT tokens. corsMiddleware handles cross-origin requests. validationMiddleware validates request bodies against JSON schema. createAuthMiddleware, createCorsMiddleware, createValidation are factories for customization. Use for securing HTTP APIs, request validation, and CORS handling with Hono framework.

libvector - Vector similarity search. VectorIndex stores embeddings with metadata and performs cosine similarity search. VectorProcessor handles embedding generation and indexing. Supports filtering by metadata and threshold-based retrieval. Use for semantic search, RAG retrieval, and similarity matching.

libutil - General utilities. countTokens and estimateTokens for GPT-style token counting. generateHash creates SHA256 hashes. generateUuid creates unique IDs findProjectRoot locates repository root. updateEnvFile modifies environment files. exec runs child processes. createBundler downloads code bundles. Use for token counting, hashing, and project utilities.

libtype - Shared Protocol Buffer types. Generated from proto/ definitions. Namespaces include common, agent, memory, graph, vector, tool, trace, llm, resource. Use Type.fromObject() for creation. identifier() method generates resource IDs. Use for typed message creation, protobuf data structures, and cross-service type sharing.

libtransform - Resource transformation utilities. pdfToHtml converts PDF documents to HTML using LLM vision capabilities, splitting pages to images and processing with multimodal models. Use for document conversion, PDF processing, and knowledge extraction from documents.