Developer Tools & Repos Agent Skills for Claude Code

JSON Schema validation and API contract design.

Design stable APIs and module boundaries with clear contracts.

Simplify code for clarity without changing behavior.

Manage deprecation and migration of old systems, APIs, and features.

Manage git workflow practices: branching, committing, resolving conflicts, parallel streams.

Queries Chinese BaZi four pillars, Five Elements attributes, and lunar calendar data based on solar birth date and hour via JuheData API.

Parses Chinese resident ID card numbers to extract gender, birthdate, and administrative jurisdiction information via Juhe API.

Install and configure Juicebox PeopleGPT API authentication.

Implement Juicebox rate limiting.

Plan Juicebox SDK upgrades.

Handle Juicebox webhooks and events.

Guides AI agents to use Jujutsu (jj) for robust, safe, and clean version control in non-interactive / headless environments.

Own Julia-specific decisions about semantics, dispatch, API design, and host conventions for code, comments, docstrings, and Documenter.jl…

Use when completing tasks, implementing major features, or before merging to verify work meets requirements

Compare the live Juno iOS Simulator screen or an attached app screenshot with an exact Figma frame, render minimal white GUI-first review…

Apply bulk operations across all jwx companion modules.

Official GSAP skill for gsap.utils — clamp, mapRange, normalize, interpolate, random, snap, toArray, wrap, pipe.

Guide for continuous improvement, error proofing, and standardization.

Framework (OSS). Add an iOS App Clip target to an Expo app. Use when the user mentions App Clip, AASA, apple-app-site-association…

Guides stable API and interface design. Use when designing APIs, module boundaries, or any public interface. Use when creating REST or…

EAS service (paid). Deploy Expo apps to the app stores with EAS - build and submit to the iOS App Store, Google Play Store, and…