Developer Tools & Repos Agent Skills

Handle Speak lesson completion events, progress webhooks, and achievement

[UDS] Create and review specification documents before writing code — spec format, states, and delta operations.

Use when an agent will work for hours or days across many files and multiple vertical slices.

Use when extracting a durable, language-neutral behavior specification and portable conformance assets from an existing codebase for…

Transform feature descriptions into 3-tier specifications (Requirements, Design, Tasks) using EARS syntax, with schema-validated…

Use after saving a non-trivial plan or decision RFC when a fail-closed feasibility, completeness, and alignment review must block execution.

Backend/API Developer - Build production API services, business logic, authentication and authorization, data-safe integrations…

Domain-Driven Design Specialist - Discover bounded contexts and ubiquitous language, then model aggregates, invariants, events, and safe…

Safely rollback failed features (DESTRUCTIVE).

Upgrade deps/frameworks with breaking change analysis.

Add speech-to-text voice input to .NET MAUI apps using CommunityToolkit.Maui.

Create complete custom spells for D&D 5e 2024, formatted to match the 2024 Player's Handbook style.

This skill should be used when the GM needs to handle spellcasting situations, including resolving spell effects, managing spell slots…

Optimize Flutter app performance with widget rebuilds, memory management, rendering optimization, and profiling techniques.

Use when adding interactive 3D scenes from Spline.design to web projects, including React embedding and runtime control API.

When to activate: Spring Boot, @RestController, @Service, @Repository, auto-configuration, profiles, actuator, exception handling, Spring…

Build or extend Spring Boot applications with a phase-aware workflow.

Spring Boot architecture patterns, REST API design, layered services, data access, caching, async processing, and logging.

Scaffolds a baseline Java 21 Maven Spring Boot REST skeleton with Web MVC, Validation, JPA, embedded H2, and Actuator from live Spring…

Spring Boot patterns including JPA repositories, REST controllers, layered services, and configuration

Verifies whether code follows Spring Modulith code structure or not.