Hig Project Context
raintree-technology/hig-doctor
Create or update a shared Apple design context document that other HIG skills use to tailor guidance.
Generates App Clip targets with invocation URL handling, lightweight experiences, and full app upgrade prompts.
Install App Clip
$ npx skills add gustavscirulis/snapgrid --skill app-clip -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install gustavscirulis/snapgrid app-clip --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/gustavscirulis/snapgrid.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/skills/generators/app-clip .claude/skills/app-clip && rm -rf skills-srcUse ~/.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/
Install the "app-clip" agent skill from https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/generators/app-clip into .claude/skills/app-clip/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "app-clip", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/generators/app-clipType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add gustavscirulis/snapgrid --skill app-clip -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install gustavscirulis/snapgrid app-clip --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/gustavscirulis/snapgrid.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/skills/generators/app-clip .agents/skills/app-clip && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "app-clip" agent skill from https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/generators/app-clip into .agents/skills/app-clip/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "app-clip", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add gustavscirulis/snapgrid --skill app-clip -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install gustavscirulis/snapgrid app-clip --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/gustavscirulis/snapgrid.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/skills/generators/app-clip .cursor/skills/app-clip && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "app-clip" agent skill from https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/generators/app-clip into .cursor/skills/app-clip/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "app-clip", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/gustavscirulis/snapgrid.git --path .claude/skills/skills/generators/app-clip--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add gustavscirulis/snapgrid --skill app-clip -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install gustavscirulis/snapgrid app-clip --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/gustavscirulis/snapgrid.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/skills/generators/app-clip .gemini/skills/app-clip && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "app-clip" agent skill from https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/generators/app-clip into .gemini/skills/app-clip/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "app-clip", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install gustavscirulis/snapgrid app-clipInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add gustavscirulis/snapgrid --skill app-clip -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/gustavscirulis/snapgrid.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/skills/generators/app-clip .github/skills/app-clip && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "app-clip" agent skill from https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/generators/app-clip into .github/skills/app-clip/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "app-clip", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add gustavscirulis/snapgrid --skill app-clip -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install gustavscirulis/snapgrid app-clip --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/gustavscirulis/snapgrid.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/skills/generators/app-clip .opencode/skills/app-clip && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "app-clip" agent skill from https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/generators/app-clip into .opencode/skills/app-clip/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "app-clip", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
app-clip- GitHub stars
- 116
- Used in
- 1 other repo
- Token cost
- ~2.2k tokens
- SKILL.md length
- 741 words
- Files
- 3
- Skills in repo
- 118
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Generates App Clip targets with invocation URL handling, lightweight experiences, and full app upgrade prompts.
- Works in 8 steps: Project Context Detection → Conflict Detection → Project Structure → …
- User wants NFC/QR/Safari banner invocation
- SKILL.md covers When This Skill Activates, Pre-Generation Checks, Configuration Questions and Generation Process, plus 4 more sections
- Calls xcodebuild; reaches other-domain.com
What it does
App Clip is an agent skill from gustavscirulis/snapgrid. Generates App Clip targets with invocation URL handling, lightweight experiences, and full app upgrade prompts. Use when user wants NFC/QR/Safari banner invocation, instant app experiences, or App Clip Card setup.
Its SKILL.md is about 2.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `patterns.md` and `templates.md`).
It sits in Mobile, covering iOS development. It works with iOS. The repository describes itself as: SnapGrid is an open-source Mac app for collecting, organizing, and analyzing UI screenshots. It uses AI to automatically detect UI components and patterns, making it a powerful…
When your agent uses it
- User wants NFC/QR/Safari banner invocation
- Instant app experiences
- App Clip Card setup
Example prompts
- “Use the app-clip skill to generate App Clip targets with invocation URL handling, lightweight experiences, and full app upgrade prompts”
- “/app-clip”
Requirements
- Pre-approved tools (allowed-tools): Read, Write, Edit, Glob, Grep, Bash, AskUserQuestion
Workflow steps
8 steps, taken from the step headings in SKILL.md.
- Project Context Detection
- Conflict Detection
- Project Structure
- Read Templates
- Create Core Files
- Create Location Files (if selected)
- Create Upgrade Files (if selected)
- Determine File Location
What it can do on your machine
Read from SKILL.md and the folder at commit eb7eaf4. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
ReadWriteEditGlobGrepBashAskUserQuestion
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
xcodebuild
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
other-domain.com
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
App Clip loads about 2.2k tokens when it runs. Until then it costs about 56 tokens; SKILL.md has 741 words of instructions outside code blocks.
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: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
allowed-tools: Read, Write, Edit, Glob, Grep, Bash, AskUserQuestion
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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 741 words (~2,215 tokens).
“Generate production App Clip infrastructure — a lightweight version of your app invoked from NFC tags, QR codes, Safari banners, or Messages. Includes App Clip target setup, invocation URL handling, experience routing, location confirmation, and full app upgrade flow.”
- name
- app-clip
- allowed-tools
- Read, Write, Edit, Glob, Grep, Bash, AskUserQuestion
Files
SKILL.md and 2 other files in .claude/skills/skills/generators/app-clip of gustavscirulis/snapgrid.
- SKILL.md
- patterns.md
- templates.md
Open the folder on GitHubat commit eb7eaf4
Used in 1 other repository
We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in gustavscirulis/snapgrid, which our catalogue first saw on October 7, 2026.
Compare with similar skills
App Clip 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| App Clip this skillgustavscirulis/snapgrid | 116 | 1 repos | ~2.2k | Automated safety check: Notes | Custom licence | |
| Hig Project Contextraintree-technology/hig-doctor | 143 | 5 repos | ~1.2k | Automated safety check: Pass | MIT | |
| Hig Components Contentraintree-technology/hig-doctor | 143 | 5 repos | ~1.3k | Automated safety check: Pass | MIT | |
| iOS Simulator Skilln0an/VivaDicta | 130 | 1 repos | ~2.5k | Automated safety check: Pass | MIT | |
| Inspector Implementationipedro/Inspector | 170 | — | ~729 | Automated safety check: Pass | MIT | |
| Device InteractionInfomaniak/desktop-kDrive | 120 | 1 repos | ~1.9k | Automated safety check: Pass | GPL-3.0 |
Similar skills
Hig Components Content
raintree-technology/hig-doctor
Apple Human Interface Guidelines for content display components.
iOS Simulator Skill
n0an/VivaDicta
21 production-ready scripts for iOS app testing, building, and automation.
Inspector Implementation
ipedro/Inspector
A skill your agent uses when an agent needs to implement or modify the Inspector library itself — panel UI, hierarchy/runtime behavior, custom property models, macros, or Example-app dogfooding.
Device Interaction
Infomaniak/desktop-kDrive
Verify iOS app behavior on device or simulator via screenshots, UI hierarchy, and touch interactions.
Run iOS Simulator
iPlug2/iPlug2OOS
Build and run an iPlug2 iOS app in the iOS Simulator. An agent skill from iPlug2/iPlug2OOS.
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Related
Works with
Categories
Questions about App Clip
What does App Clip do?
Generates App Clip targets with invocation URL handling, lightweight experiences, and full app upgrade prompts. App Clip is an agent skill from gustavscirulis/snapgrid. Generates App Clip targets with invocation URL handling, lightweight experiences, and full app upgrade prompts.
When should I use App Clip?
App Clip fits situations like: user wants NFC/QR/Safari banner invocation; instant app experiences; app Clip Card setup.
How do I install App Clip in Claude Code?
Run `npx skills add gustavscirulis/snapgrid --skill app-clip -a claude-code`. Or copy the skill folder (.claude/skills/skills/generators/app-clip in gustavscirulis/snapgrid) into .claude/skills/app-clip in your project. Claude Code loads it when a task matches its description.
How do I install App Clip in Codex?
Run `npx skills add gustavscirulis/snapgrid --skill app-clip -a codex`. Or copy the skill folder (.claude/skills/skills/generators/app-clip in gustavscirulis/snapgrid) into .agents/skills/app-clip in your project. Codex loads it when a task matches its description.
Can I use App Clip 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 gustavscirulis/snapgrid --skill app-clip -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/app-clip, .gemini/skills/app-clip, .github/skills/app-clip and .opencode/skills/app-clip in your project.
What does App Clip need to run?
Going by SKILL.md and its folder, App Clip needs the command-line tools its instructions call (xcodebuild). Its frontmatter pre-approves these tools: Read, Write, Edit, Glob, Grep, Bash, AskUserQuestion.
Does App Clip access the network?
SKILL.md names 1 domain. In commands or code: other-domain.com; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.
Is App Clip safe to install?
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does App Clip use?
App Clip has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does App Clip use?
About 2.2k tokens (SKILL.md is roughly 8.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to App Clip?
Skills that share tags, products or a category with App Clip: Hig Project Context (raintree-technology/hig-doctor, 143 stars), Hig Components Content (raintree-technology/hig-doctor, 143 stars), iOS Simulator Skill (n0an/VivaDicta, 130 stars) and Inspector Implementation (ipedro/Inspector, 170 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains App Clip?
gustavscirulis (a GitHub user) maintains it in gustavscirulis/snapgrid, which has 116 GitHub stars. The repository holds 118 skills in this directory. The repository was last updated on April 30, 2026.
Source: gustavscirulis/snapgrid on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.