Developer Tools & Repos Agent Skills

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.

Generates Spring Boot 3.x configurations, creates REST controllers, implements Spring Security 6 authentication flows, sets up Spring Data…

Run tests, fix lint errors, break down large files, and clean up debug artifacts

Verifies whether code follows Spring Modulith code structure or not.

Creates Spring Service classes following best practices.

Sprite Sheet

Build 2D games and animations using SpriteKit.

Use when the user wants to audit SpriteKit game code for common issues.

Use when physics contacts don't fire, objects tunnel through walls, frame rate drops, touches don't register, memory spikes, coordinate…

SQLiteData queries, @Table models, Point-Free SQLite, RETURNING clause, FTS5 full-text search, CloudKit sync, CTEs, JSON aggregation…

SQLiteData advanced patterns, @Selection column groups, single-table inheritance, recursive CTEs, database views, custom aggregates…

Collapses the current feature branch into a single commit and fast-forwards it onto the base branch, rebasing onto the base first when…

Install the WebContainer API and configure StackBlitz SDK for browser-based

Optimize WebContainer boot time, file system mounts, and process spawning.

WebContainer lifecycle events: server-ready, port changes, error handling.

Use when managing dependent GitHub pull requests with plain `gh` and git, especially when a parent changes or merges, a child must change…

Stage implementation changes for commit with precise file selection.

Start Android development with Emulator, dev server, and optional Poltergeist auto-rebuild

Cache management, configuration best practices, and progressive disclosure patterns for efficient context window usage.

Use when working in projects that use state-ref; follow proxy-based reactivity and lens pattern guidelines.