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Agent skill

iOS Screenshot

by keybase in keybase/client

This skill should be used when the user asks to "take an iOS screenshot", "screenshot the simulator", "show me the iOS app", "what does the screen look like", or mentions checking the iOS simulator…

BSD-3-ClauseAuto-check passedMobile

Install iOS Screenshot

skills CLI
$ npx skills add keybase/client --skill ios-screenshot -a claude-code

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

GitHub CLI
$ gh skill install keybase/client ios-screenshot --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/keybase/client.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skill/ios-screenshot .claude/skills/ios-screenshot && 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
ios-screenshot
GitHub stars
9.3k
Token cost
~282 tokens
SKILL.md length
103 words
Files
1
Skills in repo
14
Repo updated
First seen
Licence
BSD-3-Clause

At a glance

This skill should be used when the user asks to "take an iOS screenshot", "screenshot the simulator", "show me the iOS app", "what does the screen look like", or mentions checking the iOS simulator…

  • Works in 4 steps: Capture the screenshot from the booted… → Resize to 800px max dimension for token… → Use the Read tool to display… → …
  • Asks to take an iOS screenshot
  • SKILL.md covers Steps and Error Handling
  • Calls xcrun

What it does

iOS Screenshot is an agent skill from keybase/client. This skill should be used when the user asks to "take an iOS screenshot", "screenshot the simulator", "show me the iOS app", "what does the screen look like", or mentions checking the iOS simulator UI visually.

Its SKILL.md is about 280 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Mobile, covering iOS development. It works with iOS. The repository describes itself as: Keybase Go Library, Client, Service, OS X, iOS, Android, Electron. The licence is BSD-3-Clause.

When your agent uses it

  • Asks to take an iOS screenshot
  • Screenshot the simulator
  • Show me the iOS app
  • What does the screen look like

Example prompts

  • “take an iOS screenshot”
  • “screenshot the simulator”
  • “show me the iOS app”
  • “/ios-screenshot”

Workflow steps

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

  1. Capture the screenshot from the booted iOS simulator
  2. Resize to 800px max dimension for token efficiency (reduces ~90% of tokens vs full 2556px resolution while staying legible)
  3. Use the Read tool to display /tmp/ios-screenshot.png to the user.
  4. Clean up the full-size temporary file

What it can do on your machine

Read from SKILL.md and the folder at commit 349f5f4. 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

    Shell commands in SKILL.md call:

    • xcrun

    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

iOS Screenshot loads about 282 tokens when it runs. Until then it costs about 56 tokens; SKILL.md has 103 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~56
When it runs · the whole SKILL.md, loaded when a task matches
~282

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 keybase/client at commit 349f5f4, republished under its BSD-3-Clause licence (© keybase). 103 words, ~282 tokens.

Download SKILL.mdSave it as .claude/skills/ios-screenshot/SKILL.md (or your agent's skills folder).
name
ios-screenshot
description
This skill should be used when the user asks to "take an iOS screenshot", "screenshot the simulator", "show me the iOS app", "what does the screen look like", or mentions checking the iOS simulator UI visually.

Take a screenshot of the booted iOS simulator and display it.

Steps

  1. Capture the screenshot from the booted iOS simulator:

    xcrun simctl io booted screenshot /tmp/ios-screenshot-full.png

  2. Resize to 800px max dimension for token efficiency (reduces ~90% of tokens vs full 2556px resolution while staying legible):

    sips -Z 800 /tmp/ios-screenshot-full.png --out /tmp/ios-screenshot.png

  3. Use the Read tool to display /tmp/ios-screenshot.png to the user.

  4. Clean up the full-size temporary file:

    rm /tmp/ios-screenshot-full.png

Error Handling

  • If xcrun simctl io booted screenshot fails, tell the user no iOS simulator is currently booted and suggest they launch one (e.g. via Xcode or xcrun simctl boot "iPhone 17 Pro").
  • If sips fails, fall back to displaying the full-size screenshot directly.

© keybase, BSD-3-Clause. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skill/ios-screenshot of keybase/client.

Open the folder on GitHubat commit 349f5f4

Compare with similar skills

iOS Screenshot 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.

iOS Screenshot compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
iOS Screenshot this skillkeybase/client9.3k—~282Automated safety check: PassBSD-3-Clause
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/VivaDicta1311 repos~2.5kAutomated safety check: PassMIT
Inspector Implementationipedro/Inspector170—~729Automated safety check: PassMIT
Run iOS SimulatoriPlug2/iPlug2OOS158—~711Automated safety check: PassNone

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Works with

Categories

Questions about iOS Screenshot

What does iOS Screenshot do?

This skill should be used when the user asks to "take an iOS screenshot", "screenshot the simulator", "show me the iOS app", "what does the screen look like", or mentions checking the iOS simulator…. iOS Screenshot is an agent skill from keybase/client. This skill should be used when the user asks to "take an iOS screenshot", "screenshot the simulator", "show me the iOS app", "what does the screen look like", or mentions checking the iOS simulator UI visually.

When should I use iOS Screenshot?

iOS Screenshot fits situations like: asks to take an iOS screenshot; screenshot the simulator; show me the iOS app; what does the screen look like.

How do I install iOS Screenshot in Claude Code?

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

How do I install iOS Screenshot in Codex?

Run `npx skills add keybase/client --skill ios-screenshot -a codex`. Or copy the skill folder (skill/ios-screenshot in keybase/client) into .agents/skills/ios-screenshot in your project. Codex loads it when a task matches its description.

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

What does iOS Screenshot need to run?

Going by SKILL.md and its folder, iOS Screenshot needs the command-line tools its instructions call (xcrun).

Does iOS Screenshot 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 iOS Screenshot 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 iOS Screenshot use?

iOS Screenshot is published under the BSD-3-Clause licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does iOS Screenshot use?

About 282 tokens (SKILL.md is roughly 1.1k 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 iOS Screenshot?

Skills that share tags, products or a category with iOS Screenshot: Hig Project Context (raintree-technology/hig-doctor, 143 stars), Hig Components Content (raintree-technology/hig-doctor, 143 stars), iOS Simulator Skill (n0an/VivaDicta, 131 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 iOS Screenshot?

keybase (a GitHub organization) maintains it in keybase/client, which has 9,256 GitHub stars. The repository holds 14 skills in this directory. The repository was last updated on October 7, 2026.

Source: keybase/client on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.