Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).

Google Drive: Manage files, folders, and shared drives.

Guide users through a structured workflow for co-authoring documentation. Use when user wants to write documentation, proposals, technical specs, decision docs, or similar structured content. This workflow helps users efficiently transfer context, refine content through iteration, and verify the doc works for readers. Trigger when user mentions writing docs, creating proposals, drafting specs, or similar documentation tasks.

Migrate Java code to Kotlin in Spring-based codebases without changing behavior, public contracts, framework compatibility, or binary assumptions unless explicitly intended. Use when converting classes incrementally, replacing Lombok patterns, managing platform types and nullability, preserving JPA and proxy behavior, or planning the safe migration order of a mixed Java and Kotlin codebase.

Use this skill when building applications with Gemini models, Gemini API, working with multimodal content (text, images, audio, video), implementing function calling, using structured outputs, or needing current model specifications. Covers SDK usage (google-genai for Python, @google/genai for JavaScript/TypeScript, com.google.genai:google-genai for Java, google.golang.org/genai for Go), model selection, and API capabilities.

Generate, debug, and repair Kotlin + Spring Gradle builds with minimal, compatible changes. Use when `build.gradle.kts` or `settings.gradle.kts` is failing, plugins or toolchains are incompatible, dependency management is drifting from the Spring Boot BOM, test or runtime classpaths are broken, or a Kotlin DSL patch must be safe and incremental.

Applies Anthropic's official brand colors and typography to any sort of artifact that may benefit from having Anthropic's look-and-feel. Use it when brand colors or style guidelines, visual formatting, or company design standards apply.

Creating algorithmic art using p5.js with seeded randomness and interactive parameter exploration. Use this when users request creating art using code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art rather than copying existing artists' work to avoid copyright violations.

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".

Generate Kubernetes Helm charts backed by Canonical Ubuntu OCI images (rocks). Use when creating a new Helm chart from scratch for a rock; achieving feature parity with an upstream chart (Bitnami, ArtifactHub, GitHub); adding features to an existing chart. Trigger phrases are "generate helm chart", "create helm chart based on upstream chart", "helm chart for app", "feature parity with upstream", "add feature to chart", "scaffold chart", "ubuntu rock helm", "rock-backed chart". Produces chart scaffolding, values.yaml with image.digest, PSS-Restricted security defaults, Pebble-wired probes, tests, and README.md.

Land and deploy workflow. (gstack)

Designer's eye plan review — interactive, like CEO and Eng review. (gstack)

Configure deployment settings for /land-and-deploy.

Report-only QA testing. (gstack)

Post-deploy canary monitoring. (gstack)

YC Office Hours — two modes. (gstack)

Chief Security Officer mode. (gstack)

Systematic debugging with root cause investigation. (gstack)

Designer's eye QA: finds visual inconsistency, spacing issues, hierarchy problems, AI slop patterns, and slow interactions — then fixes them. (gstack)

Post-ship documentation update. (gstack)