Developer Tools & Repos Agent Skills

Master HTTP clients, REST APIs, GraphQL integration, WebSockets, and JSON serialization in Flutter applications.

Enforces Flutter runtime performance — const subtrees, minimal rebuild scope via ref.watch(select), lazy ListView/GridView builders and…

Build production-grade Flutter apps with Firebase or custom API backends.

When to activate: Flutter testing, widget tests, unit tests, integration tests, mockito, golden tests, pump, pumpWidget, WidgetTester

When to activate: Flutter widget patterns, StatelessWidget, StatefulWidget, BuildContext, InheritedWidget, key usage, widget composition

FMOD Studio integration skill for events, parameters, and mixing.

Manage rate limits for Fondo-connected services including Gusto API,

Implement event-driven financial workflows using webhooks from Fondo-connected

Manages a complex three-tier foreshadowing system to track narrative arcs and plot points for immersive campaign directing.

Move validation and authorization into Form Requests; use rule objects, custom messages, and nested data handling to keep controllers slim

Best practices and example-driven guidance for building SwiftUI views and components, including navigation hierarchies, custom view…

Use when adding or changing any Approval prompt/presenter.

Use when changing REPL clear/reset/resume/surface behavior (onClearTerminal, transcriptSeq remount, Ink Static paths, Ctrl+O/Ctrl+E…

Implement or refactor Formax tool transcript UI using the Tool UI Blocks (C-lite) pattern (ToolUiBlocks renderer + blocks presenters) to…

Enforces Form + GlobalKey<FormState> with TextFormField whose sync validator returns a localized String? (never a hardcoded literal)…

Use when implementing on-device AI with Apple's Foundation Models framework (iOS 26+), building summarization/extraction/classification…

Use when the user mentions Foundation Models review, on-device AI audit, LanguageModelSession issues, @Generable checking, or Apple…

Use when debugging Foundation Models issues — context exceeded, guardrail violations, slow generation, availability problems, unsupported…

Use when implementing on-device AI with Apple's Foundation Models framework — prevents context overflow, blocking UI, wrong model use…

This skill should be used when creating or applying Active Effects, working with effect changes and modes (ADD, MULTIPLY, OVERRIDE…

This skill should be used when creating custom windows with ApplicationV2, building forms with FormApplication, using Dialog for prompts…