Other

Professional interview preparation and practice coach for job seekers. Use when Codex needs to help users prepare for job interviews, practice common interview questions, refine their answers, or understand interview strategies. Supports multiple interview types (technical, behavioral, case studies) and provides feedback on responses.

Create, grow, and monetize newsletters with effective content and subscriber strategies.

Avoid common Blender mistakes — transform application, modifier order, UV seams, and export settings for game engines.

Process media files (video, audio, images) via a locked-down SSH container with ffmpeg, sox, and imagemagick

Build the ROSE compiler in a Docker container using autotools or CMake. Use when setting up ROSE development environment, building ROSE from source, or troubleshooting ROSE build issues. ROSE requires GCC 7-10 which most modern hosts don't have, so Docker is the recommended approach.

Use when building React 18+ applications requiring component architecture, hooks patterns, or state management. Invoke for Server Components, performance optimization, Suspense boundaries, React 19 features.

Generate custom Juicebox V5 pay hooks from natural language specifications. Creates Solidity contracts implementing IJBPayHook and/or IJBRulesetDataHook with Foundry tests. First evaluates if off-the-shelf solutions (buyback hook, 721 hook, Revnet) fit the use case.

CAPA system management for medical device QMS. Covers root cause analysis, corrective action planning, effectiveness verification, and CAPA metrics. Use for CAPA investigations, 5-Why analysis, fishbone diagrams, root cause determination, corrective action tracking, effectiveness verification, or CAPA program optimization.

Unit testing expert for Vitest and Jest. Use when writing unit tests, implementing mocking, or setting up test coverage.

Sweep 100% of native gas tokens from EIP-7702 compatible chains. Leaves exactly zero balance. Supports 25 mainnet chains.

Create and edit JSON Canvas files (.canvas) with nodes, edges, groups, and connections. Use when working with .canvas files, creating visual canvases, mind maps, flowcharts, or when the user mentions Canvas files in Obsidian.

Apache Kafka architecture expert for cluster design, capacity planning, and high availability. Use when designing Kafka clusters, choosing partition strategies, or sizing brokers for production workloads.