Agent skill

Screenshot Automation

by gustavscirulis in gustavscirulis/snapgrid

Generates an automated App Store screenshot pipeline with UI tests for screenshot capture, device framing, localized caption overlays, and multi-size batch export.

Custom licenceAuto-check: notesMobile

Install Screenshot Automation

skills CLI
$ npx skills add gustavscirulis/snapgrid --skill screenshot-automation -a claude-code

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

GitHub CLI
$ gh skill install gustavscirulis/snapgrid screenshot-automation --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/screenshot-automation .claude/skills/screenshot-automation && 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
screenshot-automation
GitHub stars
116
Used in
1 other repo
Token cost
~3.8k tokens
SKILL.md length
1,339 words
Files
2
Skills in repo
118
Repo updated
First seen
Licence
Custom licence

At a glance

Generates an automated App Store screenshot pipeline with UI tests for screenshot capture, device framing, localized caption overlays, and multi-size batch export.

  • Works in 12 steps: Project Context Detection → Conflict Detection → Localization Detection → …
  • User wants automated screenshots
  • SKILL.md covers When This Skill Activates, Pre-Generation Checks, Configuration Questions and Generation Process, plus 3 more sections
  • Calls xcodebuild and swift

What it does

Screenshot Automation is an agent skill from gustavscirulis/snapgrid. Generates an automated App Store screenshot pipeline with UI tests for screenshot capture, device framing, localized caption overlays, and multi-size batch export. Use when user wants automated screenshots, App Store screenshot generation, or a fastlane snapshot replacement.

Its SKILL.md is about 3.8k 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 App store release. 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 automated screenshots
  • App Store screenshot generation
  • A fastlane snapshot replacement

Example prompts

  • “Use the screenshot-automation skill to generate an automated App Store screenshot pipeline with UI tests for screenshot capture, device framing…”
  • “/screenshot-automation”

Requirements

  • Pre-approved tools (allowed-tools): Read, Write, Edit, Glob, Grep, Bash, AskUserQuestion

Workflow steps

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

  1. Project Context Detection
  2. Conflict Detection
  3. Localization Detection
  4. Read Templates
  5. Create App-Side Screenshot Mode
  6. Create Configuration
  7. Create UI Test Files
  8. Create Post-Processing Files
  9. Create Export Script
  10. Create Sample Content Generator
  11. Create Xcode Test Plan
  12. Determine File Locations

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:

    • xcodebuild
    • swift

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

  • Network

    No URLs in SKILL.md.

    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

Screenshot Automation loads about 3.8k tokens when it runs. Until then it costs about 74 tokens; SKILL.md has 1,339 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~74
When it runs · the whole SKILL.md, loaded when a task matches
~3.8k

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 1,339 words (~3,840 tokens).

“Generate an automated App Store screenshot pipeline that captures screenshots via UI tests, adds localized marketing captions, applies device frames, and exports all required sizes for App Store Connect. Saves hours of manual screenshot creation every release.”

— opening of SKILL.md by gustavscirulis, Custom licence
name
screenshot-automation
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/screenshot-automation 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

Screenshot Automation 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.

Screenshot Automation compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Screenshot Automation this skillgustavscirulis/snapgrid1161 repos~3.8kAutomated safety check: NotesCustom licence
Aso Appstore Screenshotsadamlyttleapps/claude-skill-aso-appstore-screenshots1.8k1 repos~9.6kAutomated safety check: PassMIT
Asc Ppp Pricingrorkai/app-store-connect-cli-skills1.1k3 repos~4.2kAutomated safety check: PassMIT
Maintain Docusaurus Manualmatthiasn/lotti1.2k—~930Automated safety check: PassGPL-3.0
Workbuddy Skin Studiocdredfox/workbuddy-skin-studio197—~1.5kAutomated safety check: PassMIT
App Store AsoTimBroddin/app-store-aso-skill100—~1.5kAutomated safety check: PassMIT

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Categories

Questions about Screenshot Automation

What does Screenshot Automation do?

Generates an automated App Store screenshot pipeline with UI tests for screenshot capture, device framing, localized caption overlays, and multi-size batch export. Screenshot Automation is an agent skill from gustavscirulis/snapgrid. Generates an automated App Store screenshot pipeline with UI tests for screenshot capture, device framing, localized caption overlays, and multi-size batch export.

When should I use Screenshot Automation?

Screenshot Automation fits situations like: user wants automated screenshots; app Store screenshot generation; A fastlane snapshot replacement.

How do I install Screenshot Automation in Claude Code?

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

How do I install Screenshot Automation in Codex?

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

Can I use Screenshot Automation 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 screenshot-automation -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/screenshot-automation, .gemini/skills/screenshot-automation, .github/skills/screenshot-automation and .opencode/skills/screenshot-automation in your project.

What does Screenshot Automation need to run?

Going by SKILL.md and its folder, Screenshot Automation needs the command-line tools its instructions call (xcodebuild and swift). Its frontmatter pre-approves these tools: Read, Write, Edit, Glob, Grep, Bash, AskUserQuestion.

Does Screenshot Automation access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Screenshot Automation 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 Screenshot Automation use?

Screenshot Automation 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 Screenshot Automation use?

About 3.8k tokens (SKILL.md is roughly 15k 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 Screenshot Automation?

Skills that share tags, products or a category with Screenshot Automation: Aso Appstore Screenshots (adamlyttleapps/claude-skill-aso-appstore-screenshots, 1.8k stars), Asc Ppp Pricing (rorkai/app-store-connect-cli-skills, 1.1k stars), Maintain Docusaurus Manual (matthiasn/lotti, 1.2k stars) and Workbuddy Skin Studio (cdredfox/workbuddy-skin-studio, 197 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Screenshot Automation?

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.