Agent skill

Hig Components System

by raintree-technology in raintree-technology/hig-doctor

Apple HIG guidance for system experience components: widgets, live activities, notifications, complications, home screen quick actions, top shelf, watch faces, app clips, and app shortcuts.

MITAuto-check passedMobile

Install Hig Components System

skills CLI
$ npx skills add raintree-technology/hig-doctor --skill hig-components-system -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install raintree-technology/hig-doctor hig-components-system --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/raintree-technology/hig-doctor.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/hig-components-system .claude/skills/hig-components-system && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
hig-components-system
GitHub stars
143
Used in
5 other repos
Token cost
~1.3k tokens
SKILL.md length
501 words
Files
10 (incl. references)
Skills in repo
15
Repo updated
First seen
Licence
MIT

At a glance

Apple HIG guidance for system experience components: widgets, live activities, notifications, complications, home screen quick actions, top shelf, watch faces, app clips, and app shortcuts.

  • Works in 12 steps: Glanceable, immediate value. System… → Respect platform context. A Lock Screen… → Widgets: show relevant information, not… → …
  • Asked about: widget design
  • SKILL.md covers Key Principles, Reference Index, Output Format and Questions to Ask, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Hig Components System is an agent skill from raintree-technology/hig-doctor. Apple HIG guidance for system experience components: widgets, live activities, notifications, complications, home screen quick actions, top shelf, watch faces, app clips, and app shortcuts. Use when asked about: "widget design", "live activity", "notification design", "complication", "home screen quick action", "top shelf", "watch face", "app clip", "app shortcut", "system experience". Also use when the user says "how do I design a widget," "what should my notification look like," "how do Live Activities work,"…

Its SKILL.md is about 1.3k tokens, which your agent loads only when the skill is triggered. The skill folder holds 10 other files, including reference files (for example `references/app-clips.md`, `references/app-shortcuts.md` and `references/complications.md`).

It sits in Mobile, covering iOS development. The repository describes itself as: Apple HIG reference and cross-framework UI audit tooling for agents. The licence is MIT.

When your agent uses it

  • Asked about: widget design
  • Notification design
  • Home screen quick action
  • System experience

Example prompts

  • “widget design”
  • “live activity”
  • “notification design”
  • “/hig-components-system”

Workflow steps

12 steps, taken from the first numbered list in SKILL.md.

  1. Glanceable, immediate value. System experiences bring your app's most important content to surfaces the user sees without launching your…
  2. Respect platform context. A Lock Screen widget has different constraints than a Home Screen widget. A complication is far smaller than a…
  3. Widgets: show relevant information, not everything. Display the most useful subset, updated appropriately.
  4. Support multiple widget sizes with distinct layouts. Each size should be a thoughtful design, not a scaled version of another.
  5. Deep-link on tap. Take users to the relevant content, not the app's root screen.
  6. Live Activities: track events with a clear start and end. Deliveries, scores, timers, rides. Design for both Dynamic Island and Lock Screen.
  7. Stay updated and timely. Stale data undermines trust. End promptly when the event concludes.
  8. Respect user attention with notifications. Only send notifications for information users genuinely care about. No promotional or low-value…
  9. Notifications: actionable and self-contained. Include enough context to understand and act without opening the app. Support notification…
  10. Complications: focused data on the watch face. Design for the smallest useful representation. Support multiple families. Budget updates…
  11. Home Screen quick actions: 3-4 most common tasks. Short titles, optional subtitles, relevant SF Symbol icons.
  12. Top Shelf: tvOS showcase. Feature content that entices: new episodes, featured items, recent content.

What it can do on your machine

Read from SKILL.md and the folder at commit 3ec08f5. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • raintree.technology

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Hig Components System loads about 1.3k tokens when it runs, and up to ~10k if it reads all its reference files. Until then it costs about 191 tokens; SKILL.md has 501 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~191
When it runs · the whole SKILL.md, loaded when a task matches
~1.3k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~10k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from raintree-technology/hig-doctor at commit 3ec08f5, republished under its MIT licence (© raintree-technology). 501 words, ~1,259 tokens.

Download SKILL.mdSave it as .claude/skills/hig-components-system/SKILL.md (or your agent's skills folder). This skill also uses 9 other files; get the full folder from GitHub.
name
hig-components-system
description
Apple HIG guidance for system experience components: widgets, live activities, notifications, complications, home screen quick actions, top shelf, watch faces, app clips, and app shortcuts. Use when asked about: "widget design", "live activity", "notification design", "complication", "home screen quick action", "top shelf", "watch face", "app clip", "app shortcut", "system experience". Also use when the user says "how do I design a widget," "what should my notification look like," "how do Live Activities work," "should I make an App Clip," or asks about surfaces outside the main app. Cross-references: hig-components-status for progress in widgets, hig-inputs for interaction patterns, hig-technologies for Siri and system integration.
version
1.0.0

Apple HIG: System Experiences

Check for .claude/apple-design-context.md before asking questions. Use existing context and only ask for information not already covered.

Key Principles

  1. Glanceable, immediate value. System experiences bring your app's most important content to surfaces the user sees without launching your app. Design for seconds of attention.

  2. Respect platform context. A Lock Screen widget has different constraints than a Home Screen widget. A complication is far smaller than a top shelf item.

  3. Widgets: show relevant information, not everything. Display the most useful subset, updated appropriately.

  4. Support multiple widget sizes with distinct layouts. Each size should be a thoughtful design, not a scaled version of another.

  5. Deep-link on tap. Take users to the relevant content, not the app's root screen.

  6. Live Activities: track events with a clear start and end. Deliveries, scores, timers, rides. Design for both Dynamic Island and Lock Screen.

  7. Stay updated and timely. Stale data undermines trust. End promptly when the event concludes.

  8. Respect user attention with notifications. Only send notifications for information users genuinely care about. No promotional or low-value notifications.

  9. Notifications: actionable and self-contained. Include enough context to understand and act without opening the app. Support notification actions. Use threading and grouping.

  10. Complications: focused data on the watch face. Design for the smallest useful representation. Support multiple families. Budget updates wisely.

  11. Home Screen quick actions: 3-4 most common tasks. Short titles, optional subtitles, relevant SF Symbol icons.

  12. Top Shelf: tvOS showcase. Feature content that entices: new episodes, featured items, recent content.

  13. App Clips: instant, focused functionality within a strict size budget. Load quickly without App Store download. Only what's needed for the immediate task, then offer full app install.

  14. App Shortcuts: surface key actions to Siri and Spotlight. Define shortcuts for frequent tasks. Use natural, conversational trigger phrases.

Show full SKILL.md (194 more words)Show less

Reference Index

ReferenceTopicKey content
widgets.mdWidgetsGlanceable info, sizes, deep linking, timeline
live-activities.mdLive ActivitiesReal-time tracking, Dynamic Island, Lock Screen
notifications.mdNotificationsAttention, actions, grouping, content
complications.mdComplicationsWatch face data, families, budgeted updates
home-screen-quick-actions.mdQuick actionsHaptic Touch, common tasks, SF Symbols
top-shelf.mdTop shelfFeatured content, showcase
app-clips.mdApp ClipsInstant use, lightweight, focused task, NFC/QR
watch-faces.mdWatch facesCustom complications, face sharing
app-shortcuts.mdApp ShortcutsSiri, Spotlight, voice triggers

Output Format

  1. System experience recommendation -- which surface best fits the use case.
  2. Content strategy -- what to display, priority, what to omit.
  3. Update frequency -- refresh rate including system budget constraints.
  4. Size/family variants -- which to support and how layout adapts.
  5. Deep link behavior -- where tapping takes the user.

Questions to Ask

  1. What information needs to surface outside the app?
  2. Which platform?
  3. How frequently does the data update?
  4. What is the primary glanceable need?
  • hig-components-status -- Progress indicators in widgets or Live Activities
  • hig-inputs -- Interaction patterns for system experiences (Digital Crown for complications)
  • hig-technologies -- Siri for App Shortcuts, HealthKit for complications, NFC for App Clips

Built by Raintree Technology · More developer tools

© raintree-technology, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 9 other files (references) in skills/hig-components-system of raintree-technology/hig-doctor.

  • SKILL.md
  • references/app-clips.md
  • references/app-shortcuts.md
  • references/complications.md
  • references/home-screen-quick-actions.md
  • references/live-activities.md
  • references/notifications.md
  • references/top-shelf.md
  • references/watch-faces.md
  • references/widgets.md

Open the folder on GitHubat commit 3ec08f5

Used in 5 other repositories

We found 18 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 5 other GitHub owners. This page covers the copy in raintree-technology/hig-doctor, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Hig Components System next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Hig Components System compared with similar skills
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Hig Components System this skillraintree-technology/hig-doctor1435 repos~1.3kAutomated safety check: PassMIT
Swiftui Protwostraws/SwiftUI-Agent-Skill5.2k2 repos~1.5kAutomated safety check: PassMIT
Swiftui UI PatternsAFK-surf/OpenBridge4304 repos~887Automated safety check: PassMIT
Swiftui Performance Auditharperreed/dotfiles3348 repos~1.4kAutomated safety check: PassNone
Swift Testing ExpertAvdLee/Swift-Testing-Agent-Skill4701 repos~1.2kAutomated safety check: PassMIT
Swift Testing Protwostraws/Swift-Testing-Agent-Skill453—~1.1kAutomated safety check: PassMIT

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More from raintree-technology/hig-doctor

All 15 skills in this repo
  • Hig Project Context

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    Create or update a shared Apple design context document that other HIG skills use to tailor guidance.

    143 GitHub starsUsed in 5 repos~1.2k tokens
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  • Hig Components Content

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    Apple Human Interface Guidelines for content display components.

    143 GitHub starsUsed in 5 repos~1.3k tokens
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  • Hig Components Controls

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    Apple HIG guidance for selection and input controls including pickers, toggles, sliders, steppers, segmented controls, combo boxes, text fields, text views, labels, token fields, virtual keyboards…

    143 GitHub starsUsed in 5 repos~1.3k tokens
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  • Hig Components Dialogs

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    Apple HIG guidance for presentation components including alerts, action sheets, popovers, sheets, and digit entry views.

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  • Hig Components Layout

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    Apple Human Interface Guidelines for layout and navigation components.

    143 GitHub starsUsed in 5 repos~1.6k tokens
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  • Hig Components Menus

    raintree-technology/hig-doctor

    Apple HIG guidance for menu and button components including menus, context menus, dock menus, edit menus, the menu bar, toolbars, action buttons, pop-up buttons, pull-down buttons, disclosure…

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Categories

Questions about Hig Components System

What does Hig Components System do?

Apple HIG guidance for system experience components: widgets, live activities, notifications, complications, home screen quick actions, top shelf, watch faces, app clips, and app shortcuts. Hig Components System is an agent skill from raintree-technology/hig-doctor. Apple HIG guidance for system experience components: widgets, live activities, notifications, complications, home screen quick actions, top shelf, watch faces, app clips, and app shortcuts.

When should I use Hig Components System?

Hig Components System fits situations like: asked about: widget design; notification design; home screen quick action; system experience.

How do I install Hig Components System in Claude Code?

Run `npx skills add raintree-technology/hig-doctor --skill hig-components-system -a claude-code`. Or copy the skill folder (skills/hig-components-system in raintree-technology/hig-doctor) into .claude/skills/hig-components-system in your project. Claude Code loads it when a task matches its description.

How do I install Hig Components System in Codex?

Run `npx skills add raintree-technology/hig-doctor --skill hig-components-system -a codex`. Or copy the skill folder (skills/hig-components-system in raintree-technology/hig-doctor) into .agents/skills/hig-components-system in your project. Codex loads it when a task matches its description.

Can I use Hig Components System in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add raintree-technology/hig-doctor --skill hig-components-system -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/hig-components-system, .gemini/skills/hig-components-system, .github/skills/hig-components-system and .opencode/skills/hig-components-system in your project.

What does Hig Components System need to run?

SKILL.md names no scripts, command-line tools or credentials: Hig Components System is instructions for the agent only.

Does Hig Components System access the network?

SKILL.md names 1 domain. As links in the text: raintree.technology. This is read from the text; nothing was executed.

Is Hig Components System safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Hig Components System use?

Hig Components System is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Hig Components System use?

About 1.3k tokens (SKILL.md is roughly 5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 8.7k tokens, read only when the agent opens those files.

What are the alternatives to Hig Components System?

Skills that share tags, products or a category with Hig Components System: Swiftui Pro (twostraws/SwiftUI-Agent-Skill, 5.2k stars), Swiftui UI Patterns (AFK-surf/OpenBridge, 430 stars), Swiftui Performance Audit (harperreed/dotfiles, 334 stars) and Swift Testing Expert (AvdLee/Swift-Testing-Agent-Skill, 470 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Hig Components System?

raintree-technology (a GitHub organization) maintains it in raintree-technology/hig-doctor, which has 143 GitHub stars. The repository holds 15 skills in this directory. The repository was last updated on September 11, 2026.

Source: raintree-technology/hig-doctor on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.