Developer Tools & Repos Agent Skills for Microsoft Copilot

Epic Online Services skill for launcher integration.

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…

When the user wants to design or optimize their app's monetization — pricing, paywalls, subscriptions, or in-app purchases.

Implement and maintain type-safe Electron IPC using eRPC and tRPC patterns in this project.

Manage and document SDK error codes and messages

Build resilient applications with robust error handling strategies that gracefully handle failures and provide excellent debugging…

Use when the user asks to "review error handling in this code", "should this panic or return an error", "design an error type", "how…

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

Expert skill for designing and implementing high-quality compiler error messages

ESLint configuration, custom rules, and plugin development.

Use when eSLint configuration including config files, extends, plugins, and environment setup.

Use when custom ESLint rules and plugins including rule development, AST traversal, and publishing.

Use when eSLint built-in rules including rule configuration, severity levels, and disabling strategies.

Build, flash, and test ESP-IDF firmware for ESP32-S3 (via Docker or native)

Create pull requests for esphome. Use when creating PRs, submitting changes, or preparing contributions.

Design and implement the personality, conversational style, and emotional behavior of the Ethereal "Digital Spirit".

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…

Complex event flow patterns for Valkyrie MoM scenarios.