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Agent skill

Live Activity Generator

by gustavscirulis in gustavscirulis/snapgrid

Generate ActivityKit Live Activity infrastructure with Dynamic Island layouts, Lock Screen presentation, and push-to-update support.

Custom licenceAuto-check: notesMobile

Install Live Activity Generator

skills CLI
$ npx skills add gustavscirulis/snapgrid --skill live-activity-generator -a claude-code

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

GitHub CLI
$ gh skill install gustavscirulis/snapgrid live-activity-generator --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/gustavscirulis/snapgrid.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/skills/generators/live-activity-generator .claude/skills/live-activity-generator && 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
live-activity-generator
GitHub stars
116
Used in
1 other repo
Token cost
~2.4k tokens
SKILL.md length
899 words
Files
2
Skills in repo
118
Repo updated
First seen
Licence
Custom licence

At a glance

Generate ActivityKit Live Activity infrastructure with Dynamic Island layouts, Lock Screen presentation, and push-to-update support.

  • Works in 6 steps: Project Context Detection → Conflict Detection → Required Capabilities → …
  • Adding Live Activities to an iOS app
  • SKILL.md covers When This Skill Activates, Pre-Generation Checks, Configuration Questions and Generation Process, plus 5 more sections
  • Calls curl; reaches api.push.apple.com; needs JWT_TOKEN and PUSH_TOKEN

What it does

Live Activity Generator is an agent skill from gustavscirulis/snapgrid. Generate ActivityKit Live Activity infrastructure with Dynamic Island layouts, Lock Screen presentation, and push-to-update support. Use when adding Live Activities to an iOS app.

Its SKILL.md is about 2.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `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

  • Adding Live Activities to an iOS app
  • Tasks that involve iOS development

Example prompts

  • “/live-activity-generator”

Requirements

  • A credential in JWT_TOKEN
  • A credential in PUSH_TOKEN
  • Pre-approved tools (allowed-tools): Read, Write, Edit, Glob, Grep, Bash, AskUserQuestion

Workflow steps

6 steps, taken from the step headings in SKILL.md.

  1. Project Context Detection
  2. Conflict Detection
  3. Required Capabilities
  4. Determine File Locations
  5. Create Core Files
  6. Generate Code from Templates

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:

    • Read
    • Write
    • Edit
    • Glob
    • Grep
    • Bash
    • AskUserQuestion

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • curl

    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:

    • api.push.apple.com

    Also links to:

    • developer.apple.com

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

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • JWT_TOKEN
    • PUSH_TOKEN

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

Context cost

Live Activity Generator loads about 2.4k tokens when it runs. Until then it costs about 51 tokens; SKILL.md has 899 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~51
When it runs · the whole SKILL.md, loaded when a task matches
~2.4k

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 899 words (~2,432 tokens).

“Generate a complete ActivityKit Live Activity implementation with Dynamic Island layouts, Lock Screen presentation, activity lifecycle management, and push-to-update support.”

— opening of SKILL.md by gustavscirulis, Custom licence
name
live-activity-generator
allowed-tools
Read, Write, Edit, Glob, Grep, Bash, AskUserQuestion

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file in .claude/skills/skills/generators/live-activity-generator of gustavscirulis/snapgrid.

  • SKILL.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

Live Activity Generator 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.

Live Activity Generator compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Live Activity Generator this skillgustavscirulis/snapgrid1161 repos~2.4kAutomated safety check: NotesCustom licence
Hig Project Contextraintree-technology/hig-doctor1435 repos~1.2kAutomated safety check: PassMIT
Hig Components Contentraintree-technology/hig-doctor1435 repos~1.3kAutomated safety check: PassMIT
iOS Simulator Skilln0an/VivaDicta1301 repos~2.5kAutomated safety check: PassMIT
Inspector Implementationipedro/Inspector170—~729Automated safety check: PassMIT
Device InteractionInfomaniak/desktop-kDrive1201 repos~1.9kAutomated safety check: PassGPL-3.0

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All 118 skills in this repo

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Works with

Categories

Questions about Live Activity Generator

What does Live Activity Generator do?

Generate ActivityKit Live Activity infrastructure with Dynamic Island layouts, Lock Screen presentation, and push-to-update support. Live Activity Generator is an agent skill from gustavscirulis/snapgrid. Generate ActivityKit Live Activity infrastructure with Dynamic Island layouts, Lock Screen presentation, and push-to-update support.

When should I use Live Activity Generator?

Live Activity Generator fits situations like: adding Live Activities to an iOS app; tasks that involve iOS development.

How do I install Live Activity Generator in Claude Code?

Run `npx skills add gustavscirulis/snapgrid --skill live-activity-generator -a claude-code`. Or copy the skill folder (.claude/skills/skills/generators/live-activity-generator in gustavscirulis/snapgrid) into .claude/skills/live-activity-generator in your project. Claude Code loads it when a task matches its description.

How do I install Live Activity Generator in Codex?

Run `npx skills add gustavscirulis/snapgrid --skill live-activity-generator -a codex`. Or copy the skill folder (.claude/skills/skills/generators/live-activity-generator in gustavscirulis/snapgrid) into .agents/skills/live-activity-generator in your project. Codex loads it when a task matches its description.

Can I use Live Activity Generator 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 live-activity-generator -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/live-activity-generator, .gemini/skills/live-activity-generator, .github/skills/live-activity-generator and .opencode/skills/live-activity-generator in your project.

What does Live Activity Generator need to run?

Going by SKILL.md and its folder, Live Activity Generator needs the command-line tools its instructions call (curl) and credentials named JWT_TOKEN and PUSH_TOKEN. Our summary lists: A credential in JWT_TOKEN; A credential in PUSH_TOKEN. Its frontmatter pre-approves these tools: Read, Write, Edit, Glob, Grep, Bash, AskUserQuestion.

Does Live Activity Generator access the network?

SKILL.md names 2 domains. In commands or code: api.push.apple.com; the agent is likely to contact it when it follows the instructions. As links in the text: developer.apple.com. This is read from the text; nothing was executed.

Is Live Activity Generator 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 Live Activity Generator use?

Live Activity Generator 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 Live Activity Generator use?

About 2.4k tokens (SKILL.md is roughly 9.7k 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 Live Activity Generator?

Skills that share tags, products or a category with Live Activity Generator: 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 Live Activity Generator?

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.