Developer Tools & Repos Agent Skills for Codex CLI

Use when implementing error handling, cleanup routines, or debugging in shell scripts.

Use when configuring ShellCheck, fixing ShellCheck findings, choosing Bash versus POSIX analysis mode, setting project suppressions, or…

Guides REST and RPC API design across Go, TypeScript, and PHP backends.

Patterns for building shared UI across Android, iOS, Desktop, and Web with Compose Multiplatform and Jetpack Compose — state hoisting with…

Guides deprecating and removing old systems, APIs, or code, and migrating consumers to a replacement.

Guides git commit discipline, trunk-based branching, and semantic versioning/changelogs for released code, including Go modules'…

Decide a ticket's PR stack — which deploy-safe PRs, on which bases, which run in parallel — before any code is written.

Use when formatting shell scripts with shfmt.

Clean Architecture patterns for Android and Kotlin Multiplatform projects — module structure, dependency rules, UseCases, Repositories…

Compose Multiplatform and Jetpack Compose patterns for KMP projects — state management, navigation, theming, performance, and…

Kotlin Coroutines and Flow patterns for Android and KMP — structured concurrency, Flow operators, StateFlow, error handling, and testing.

Automates Taiwan financial trading and market data analysis using the SinoPac Shioaji Python API.

Fix-until-clean loop then commit and push.

One-shot "ship it" — split a dirty working tree into logically grouped commits, create/push the branch if needed, and open a GitHub pull…

Use when preparing ANY app for submission, handling App Store rejections, writing appeals, or managing App Store Connect.

Import a handwritten spec document into Shipyard, replacing brainstorming.

Frontend development patterns for React, Next.js, state management, performance optimization, and UI best practices.

Use the `gh` CLI for issues, pull requests, Actions runs, and GitHub API queries.

Use when writing, reviewing, or refactoring SwiftUI code for iOS or macOS, including state management and `@Observable` data flow, view…

Scan Apple's SwiftUI documentation for deprecated APIs and update the SwiftUI Expert Skill with modern replacements.

When to activate: Sidekiq, background jobs, idempotent jobs, sidekiq_retry_in, job retries, unique jobs, ActiveJob, queue monitoring, Ruby…