Scripting App Development Skill

A development skill for desktop coding agents such as Codex and Claude Code. It helps agents create, modify, debug, and validate Scripting App projects: TypeScript/TSX scripts, iOS-style pages, native APIs, Widgets, Live Activities, rich notifications, Shortcuts/Share Sheet intents, App Intents, and Safari browser scripts.

Install

Copy or link this repository into the skill directory used by your coding agent. The root SKILL.md is the entry point; it loads only the relevant files under references/, templates/, and checklists/ for each task.

Documentation and local typings

Before writing Scripting-specific code, the skill requires the agent to consult the official LLM documentation index:

For desktop-to-iPhone development, use scripting-cli:

# Requires Node.js 20+
npx scripting-cli start

After the Scripting App connects to the initialized workspace, it synchronizes current .d.ts declarations. The agent should use them to verify exact local TypeScript signatures, imports/globals, event payloads, and TSX props, while using the official documentation for behavioral, permission, and host constraints.

Contents

SKILL.md                         Main routing, API lookup, validation, and safety rules
references/                      Focused guides for project lifecycle, UI, native APIs,
                                 Widgets/App Intents, Live Activities, notifications/Intents,
                                 Safari scripts, desktop CLI, and validation/security
templates/                       Minimal `script.json`, entry-point, Widget, Intent, and userscript starters
checklists/                      Project creation, modification, desktop live-debug, and host E2E checks

Development loop

1. Identify the target Scripting host and entry point.
2. Query llms.txt and the exact official API/capability page.
3. When available, initialize scripting-cli, connect the app, and inspect synced .d.ts files for the connected app version.
4. Implement the smallest compatible change.
5. Run diagnostics, CLI/live-sync checks, and applicable previews.
6. Complete the required real device-host verification for Widgets, Live Activities, notifications, Intents, and Safari scripts.

Scope