Developer Tools & Repos Agent Skills

React and Next.js performance optimization guidelines from Vercel Engineering.

Jira Teams via Apideck's Proxy API + managed Vault auth — Apideck handles auth and proxies HTTP calls to Jira Teams's native API.

Jujutsu (jj) — Git-compatible VCS with automatic change tracking, conflict-aware rebasing, and revset algebra

JLCPCB PCB fabrication and assembly — BOM/CPL generation, basic vs extended parts, assembly constraints, design rules, ordering workflow.

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

Behavioral guidance derived from John Carmack's archived .plan files and public technical talks on direct implementation, cost visibility…

Parse and analyze Sims DBPF (Database Packed File) format for Sims 2, 3, and 4 save files.

Use when the user wants to commit current changes and open a pull request in one step, or invokes /create-pr

This skill SHOULD be used when the user asks to "get the version from package.json", "what dependencies are in this project", "extract…

Migrate jQuery 3.x to 4.0.0 safely in WordPress and legacy web projects.

Implement, refactor, or review worker-based multithreading in TypeScript/JavaScript apps (browser or Node).

Use when running Java snippets in JShell or using JShell as a Java REPL or scratchpad.

json-render component catalog patterns for AI-safe generative UI.

Strict JSON:API v1.1 specification compliance.

Optimize Juicebox performance.

Apply production Juicebox SDK patterns.

Use when implementation is complete, all tests pass, and you need to decide how to integrate the work - guides completion of development…

Modern Python development with Python 3.12+, Django, FastAPI, async patterns, and production best practices.

Use when starting feature work that needs isolation from current workspace or before executing implementation plans - creates isolated git…

React and Next.js performance optimization guidelines from Vercel Engineering.

Use `just` to save and run project-specific commands.