Developer Tools & Repos Agent Skills

Use when designing a system, service, or architecture from requirements and constraints, especially for API design, data modeling, service…

Automate Epic Games tasks via Rube MCP (Composio).

Svelte best practices for writing, editing, or reviewing Svelte/SvelteKit components and modules.

Build professional native iPhone apps in Swift with SwiftUI and UIKit.

Use when starting feature work that needs isolation from current workspace or before executing implementation plans - creates isolated git…

Enforces a typed-error spine — a hand-rolled sealed Result<T,F> plus one per-boundary sealed Failure carrying a stable code and typed…

Rules for ESM-first TypeScript projects using "type": "module" with moduleResolution: "nodenext".

Develops, validates, and refactors Europa Universalis IV 1.37.5 mods, Clausewitz scripts, and modding tools with strict syntax validation.

Hard-won ground rules for building EvenHub apps on Even Realities G2 smart glasses — SDK limits, audio/mic/VAD, TTS latency, rendering…

Analyze and control Flexport request volume without inventing undocumented global limits or headers.

Exact Online integration via Apideck's Accounting unified API — same methods work across every connector in Accounting, switch by changing…

How to handle failures correctly in Kotlin coroutines and Flow on Android — exception propagation under structured concurrency, launch vs…

Make bounded changes in the repository's observed stack and conventions without opportunistic refactoring; escalate only a demonstrated…

Use when implementing or debugging ANY network request, API call, or data fetching.

Framework (OSS). Folder structure for a new Expo app. Use when scaffolding or laying out a new Expo project with Expo Router, or deciding…

Submit feedback on an Expo skill—or Expo itself—and control bundled anonymous usage telemetry (off by default / opt-in).

This is the preferred pattern for all objects that support it.

Connect external agents and MCP hosts (Claude, Claude Desktop, Claude Code, ChatGPT custom MCP apps, Codex, Cursor, Claude Cowork, VS Code…

Connect to external tools via MCP (GitHub, databases, APIs)

Use when building high-performance async Python APIs with FastAPI and Pydantic V2.

Build, test, and deploy Python MCP servers.