Agent skills for Gemini CLI

Senior Designer review: rates each design dimension 0-10, explains what a 10 looks like, and flags AI Slop signals.

Execute an already-approved plan with discipline — batch tasks into verifiable checkpoints, verify each with fresh evidence before marking…

YC Office Hours — two modes. (gstack)

Fast headless browser for QA testing and site dogfooding. (gstack)

Start from a high-level idea, and systematically turn that into a detailed product description.

Slice one approved Controlled change into two or more independently verifiable human work items.

Plan and review MySQL/InnoDB schema, indexing, query tuning, transactions, and operations.

Overview and information about Neki, the sharded Postgres product by PlanetScale.

Apply when writing or editing PlantUML (.puml, .plantuml, .pu) files or when generating diagrams from text descriptions.

Create UML diagrams and architecture visualizations with PlantUML

Automate Platerecognizer tasks via Rube MCP (Composio).

Apply platform accessibility best practices to SwiftUI, UIKit, and AppKit code.

Add data visualization to a React Native or Expo app with @platform-blocks/charts.

Display data with the @platform-blocks/ui React Native library.

Build forms with the @platform-blocks/ui React Native library.

Build screen layouts with the @platform-blocks/ui React Native library.

Automates and guides the distribution of content across major platforms like WeChat, Xiaohongshu, and Feishu using specialized API…

300+ design rules from Apple HIG, Material Design 3, and WCAG 2.2 for cross-platform apps.

Platform-specific best practices for social media publishing.

Typed library of social media platform image/video dimensions and safe zones.

Use when implementing player movement — CharacterBody2D/3D patterns, input handling, physics, common movement recipes