Developer Tools & Repos Agent Skills for Codex CLI

API and backend code review — REST conventions, auth, validation, error handling, pagination, rate limiting, test coverage.

Use when integrating App Intents for Siri, Apple Intelligence, Shortcuts, Spotlight, or system experiences - covers AppIntent, AppEntity…

Architecture specialist for software/system design, module and service boundaries, tradeoff analysis, and stakeholder synthesis.

Deep expertise in ARM Cortex-M architecture and peripherals

Backend specialist for APIs, databases, authentication with clean architecture (Repository/Service/Router pattern).

Document frontend data needs for backend developers.

Guides the agent through Angular-specific patterns for Capacitor app development.

Use when a PlayCanvas scene must read as a deliberate image rather than a flat asset preview — photoreal and cinematic, or stylized…

Use when the user wants to classify a commit or understand what kind of change a commit represents in the WebKit repository.

Caching strategies for .NET 10 applications.

Error handling strategy for .NET 10 applications.

Generates CQRS Commands and Handlers for PHP 8.4.

Create high-quality git commits: review/stage intended changes, split into logical commits, and write clear commit messages (including…

Generates structured, professional git commit messages following the Conventional Commits specification to improve repository clarity.

This skill should be used when creating Daggerheart adversaries, building stat blocks, designing encounters, or determining enemy…

Use when implementing dialogue — data structures for branching dialogue, conditions, and UI presentation

Use when designing domain error handling.

Use when a Godot/.NET task involves writing, refactoring, or translating C# gameplay, tool, editor, resource, or node code and the agent…

Bubbletea/Lipgloss quality rules for Engram TUI.

ERNE — Performance profiling and optimization using the performance-profiler agent

Implements a standardized error code system and API response patterns for robust debugging and internationalization.