AG Kit Skills
Build applications with Antigravity’s project-level engineering toolkit.
AG Kit’s native workspace combines domain Skills for application building, architecture, testing, deployment, security, orchestration, and game development.
Use cases
- Plan and build a full application
- Review code, tests, security, and deployment
- Coordinate specialist or game-development tasks
How to use
Use the upstream project installer to provide the complete .agents workspace. Antigravity is the supported runtime; rules, workflows, memory, and hooks accompany the Skills.
Skills
api-patterns
API design principles and decision-making. REST vs GraphQL vs tRPC selection, response formats, versioning, pagination.
vudovn/ag-kitapp-builder
Main application building orchestrator. Creates full-stack applications from natural language requests. Determines project type, selects tech stack, coordinates agents.
vudovn/ag-kitarchitecture
Architectural decision-making framework. Requirements analysis, trade-off evaluation, ADR documentation. Use when making architecture decisions or analyzing system design.
vudovn/ag-kitbash-linux
Bash/Linux terminal patterns. Critical commands, piping, error handling, scripting. Use when working on macOS or Linux systems.
vudovn/ag-kitbatch-operations
Apply operations across multiple files simultaneously. Pattern-based bulk modifications, search-and-replace across codebases, consistent changes to many files at once.
vudovn/ag-kitbehavioral-modes
AI operational modes (brainstorm, implement, debug, review, teach, ship, orchestrate). Use to adapt behavior based on task type.
vudovn/ag-kitbrainstorming
Socratic questioning protocol + user communication. MANDATORY for complex requests, new features, or unclear requirements. Includes progress reporting and error handling.
vudovn/ag-kitclean-code
Pragmatic coding standards - concise, direct, no over-engineering, no unnecessary comments
vudovn/ag-kitcode-review-checklist
Code review guidelines covering code quality, security, and best practices.
vudovn/ag-kitcode-review-graph
Token-efficient code review using Tree-sitter AST graphs and MCP. Cuts AI token usage on large codebases by computing the blast radius of changes instead of reading entire codebases. Uses a SQLite graph database for structural analysis.
vudovn/ag-kitcontext-compression
Manage and compress conversation context in long sessions. Detect when context is growing large, summarize completed work phases, archive old findings while preserving key decisions. Prevents context degradation.
vudovn/ag-kitcoordinator-mode
Advanced multi-agent orchestration with parallel workers, synthesis protocols, and coordinator lifecycle. Use when complex tasks require multiple agents working in parallel with intelligent result synthesis.
vudovn/ag-kitdatabase-design
Database design principles and decision-making. Schema design, indexing strategy, ORM selection, serverless databases.
vudovn/ag-kitdeployment-procedures
Production deployment principles and decision-making. Safe deployment workflows, rollback strategies, and verification. Teaches thinking, not scripts.
vudovn/ag-kitdesign-spec
How to author a DESIGN.md file — the machine-readable design-token + human-rationale format that must exist before any UI is built. YAML front-matter token schema (colors, typography, spacing, rounded, components), type system, token references, and canonical section order.
vudovn/ag-kitdocumentation-templates
Documentation templates and structure guidelines. README, API docs, code comments, and AI-friendly documentation.
vudovn/ag-kitfrontend-architecture
How to organize frontend code — separation of concerns (UI / logic / data / type), file responsibility, state tiers, API services, schema validation, and framework conventions for React/Next and Vue. Structural rules, not visual design.
vudovn/ag-kitfrontend-design
Anti-slop frontend design for web UI — landing pages, portfolios, marketing/product sites, and redesigns. Reads the brief, infers the right direction, and ships interfaces that don't look templated. Real design systems when applicable, audit-first on redesigns, strict pre-flight check. NOT for mobile apps.
vudovn/ag-kitgame-development
Game development orchestrator. Routes to platform-specific skills based on project needs.
vudovn/ag-kitgeo-fundamentals
Generative Engine Optimization for AI search engines (ChatGPT, Claude, Perplexity).
vudovn/ag-kiti18n-localization
Internationalization and localization patterns. Detecting hardcoded strings, managing translations, locale files, RTL support.
vudovn/ag-kitintelligent-routing
Automatic agent selection and intelligent task routing. Analyzes user requests and automatically selects the best specialist agent(s) without requiring explicit user mentions.
vudovn/ag-kitlint-and-validate
Automatic quality control, linting, and static analysis procedures. Use after every code modification to ensure syntax correctness and project standards. Triggers on keywords: lint, format, check, validate, types, static analysis.
vudovn/ag-kitmcp-builder
MCP (Model Context Protocol) server and client engineering. Protocol design, schemas, transports, extensions, security, and migration.
vudovn/ag-kitmemory-system
Persistent cross-session memory management. Enables agents to remember user preferences, project conventions, and past decisions across different sessions using a structured MEMORY.md index and topic files.
vudovn/ag-kitmobile-design
Mobile-first design thinking and decision-making for iOS and Android apps. Touch interaction, performance patterns, platform conventions. Teaches principles, not fixed values. Use when building React Native, Flutter, or native mobile apps.
vudovn/ag-kitnextjs-react-expert
React and Next.js performance optimization from Vercel Engineering. Use when building React components, optimizing performance, eliminating waterfalls, reducing bundle size, reviewing code for performance issues, or implementing server/client-side optimizations.
vudovn/ag-kitnodejs-best-practices
Node.js development principles and decision-making. Framework selection, async patterns, security, and architecture. Teaches thinking, not copying.
vudovn/ag-kitparallel-agents
Multi-agent orchestration patterns. Use when multiple independent tasks can run with different domain expertise or when comprehensive analysis requires multiple perspectives.
vudovn/ag-kitperformance-profiling
Performance profiling principles. Measurement, analysis, and optimization techniques.
vudovn/ag-kitplan-writing
Structured task planning with clear breakdowns, dependencies, and verification criteria. Use when implementing features, refactoring, or any multi-step work.
vudovn/ag-kitpowershell-windows
PowerShell Windows patterns. Critical pitfalls, operator syntax, error handling.
vudovn/ag-kitpython-patterns
Python development principles and decision-making. Framework selection, async patterns, type hints, project structure. Teaches thinking, not copying.
vudovn/ag-kitred-team-tactics
Red team tactics principles based on MITRE ATT&CK. Attack phases, detection evasion, reporting.
vudovn/ag-kitrust-pro
Master modern Rust (2024 edition) with async patterns, advanced type system features, and production-ready systems programming. Expert in the current Rust ecosystem including Tokio, axum, and modern crates. Use PROACTIVELY for Rust development, performance optimization, or systems programming.
vudovn/ag-kitseo-fundamentals
SEO fundamentals, E-E-A-T, Core Web Vitals, and Google algorithm principles.
vudovn/ag-kitserver-management
Server management principles and decision-making. Process management, monitoring strategy, and scaling decisions. Teaches thinking, not commands.
vudovn/ag-kitsimplify-code
Reduce complexity of over-engineered code. Identify unnecessary abstractions, remove dead code, flatten deep nesting, and simplify logic while preserving behavior.
vudovn/ag-kitskillify
Auto-create new skills from repetitive workflows. When you notice yourself doing the same multi-step process repeatedly, extract it into a reusable SKILL.md that any agent can use.
vudovn/ag-kitsystematic-debugging
4-phase systematic debugging methodology with root cause analysis and evidence-based verification. Use when debugging complex issues.
vudovn/ag-kittailwind-patterns
Tailwind CSS v4 principles. CSS-first configuration, container queries, modern patterns, design token architecture.
vudovn/ag-kittdd-workflow
Test-Driven Development workflow principles. RED-GREEN-REFACTOR cycle.
vudovn/ag-kittesting-patterns
Testing patterns and principles. Unit, integration, mocking strategies.
vudovn/ag-kitverify-changes
Prove code works by running it, not just checking it exists. Verification through execution rather than inspection. Use after writing or modifying code to ensure it actually functions correctly.
vudovn/ag-kitvulnerability-scanner
Advanced vulnerability analysis principles. OWASP 2025, Supply Chain Security, attack surface mapping, risk prioritization.
vudovn/ag-kitweb-design-guidelines
Review UI code for Web Interface Guidelines compliance. Use when asked to "review my UI", "check accessibility", "audit design", "review UX", or "check my site against best practices".
vudovn/ag-kitwebapp-testing
Web application testing principles. E2E, Playwright, deep audit strategies.
vudovn/ag-kit