Developer Tools & Repos Agent Skills for Codex CLI

Implement ElevenLabs webhook HMAC signature verification and event handling.

Use when writing or refactoring core Elixir — pattern matching, case/cond/with, pipes, {:ok, _}/{:error, _} contracts.

Use when Elixir OTP patterns including GenServer, Supervisor, Agent, and Task.

Reviews Elixir code for performance issues including GenServer bottlenecks, memory usage, and concurrency patterns.

Composition patterns for building flexible, maintainable React components.

Emacs ecosystem = elisp + org + gnus + tramp + eglot.

This skill should be used when the user asks to "check encounter balance", "review CR", "is this too hard", "is this too easy", "balance…

Build single encounters for D&D 5e 2024 across all five types: Combat, Social, Exploration, Chase, and Downtime.

Enemy AI for 3D MMO platformers — patrol loops, server-controlled entities, BackgroundService AI, state machines, aggro, boss patterns…

Query grid electricity forecasts and submit load events using EnergyKit to help users optimize home electricity usage.

Configure the project's game engine and version.

Index of 37 advanced engineering agent skills for Claude Code, Codex, Gemini CLI, Cursor, OpenClaw.

Master Godot 4 GDScript patterns including signals, scenes, state machines, and optimization.

Master Unity ECS (Entity Component System) with DOTS, Jobs, and Burst for high-performance game development.

Product and business-rule guardrails for Engram.

Three.js lighting - light types, shadows, environment lighting.

Three.js asset loading - GLTF, textures, images, models, async patterns.

Three.js post-processing - EffectComposer, bloom, DOF, screen effects.

Three.js textures - texture types, UV mapping, environment maps, texture settings.

Launch the Adventure Engine application for an adventure project.

Resolves HTTP routes (GET /api/orders) and console commands (app:process-payments) to their handler files.