asc-screenshot-upload

asc-screenshot-upload is a skill for Claude Code, Codex from Abdullah4AI/apple-developer-toolkit. It costs 34 tokens per session (782 once invoked), scanned A, original, MIT.

A workflow for creating and uploading App Store screenshots. It can capture screens from iOS simulators, Apple’s virtual devices, and validate uploaded images against Apple’s required device sizes.

In plain words
What is it for?
Use it to build and launch an app in simulators, navigate screens, capture images, frame them, and upload valid screenshots for each required device type.
Why use it?
It reduces manual screenshot work and prevents submission attempts with missing or incorrectly sized images.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/abdullah4ai/apple-developer-toolkit/asc-screenshot-upload
Any agent
npx skills add Abdullah4AI/apple-developer-toolkit --skill asc-screenshot-upload
Clone the repo
git clone --depth 1 https://github.com/Abdullah4AI/apple-developer-toolkit

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for asc-screenshot-upload

README.md
[![agentmods](https://agentmods.dev/badge/skills/abdullah4ai/apple-developer-toolkit/asc-screenshot-upload.svg)](https://agentmods.dev/skills/abdullah4ai/apple-developer-toolkit/asc-screenshot-upload)
Your own site
<a href="https://agentmods.dev/skills/abdullah4ai/apple-developer-toolkit/asc-screenshot-upload"><img src="https://agentmods.dev/badge/skills/abdullah4ai/apple-developer-toolkit/asc-screenshot-upload.svg" alt="Measured on agentmods" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 782 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00034 $0.00782
Opus 5 $0.00017 $0.00391
Sonnet 5 $0.00007 $0.00156
Haiku 4.5 $0.00003 $0.00078

Measured 5d ago against content hash 74a8990dc819, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

asc-screenshot-upload scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

swiftship/internal/skills/data/features/asc-screenshot-upload/SKILL.md · 94 lines

How it starts

The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ASC Screenshot Upload

Two-Option Screenshot System

During pre-flight step 8, the user chooses how to provide screenshots:

Automatic (Recommended)

Pre-flight builds the app for each required simulator, boots them, installs, launches, and captures the initial launch screen. Simulators are left running so you can capture additional screens.

After pre-flight, use AXe to navigate to key screens and capture more:

# See current screen elements
axe describe-ui --udid <UDID>

# Navigate to a screen
axe tap --id <element_id> --udid <UDID>

# Capture screenshot
xcrun simctl io <UDID> screenshot <path>.png

Analyze the app's Swift source to identify important screens (ignore settings/preferences). Capture 3-5 screenshots showing the app's core functionality.

Custom Upload

Browser UI with Apple validation:

  • Requirements checklist at top shows which device types are needed (green checkmarks when fulfilled)
  • Each uploaded image shows a badge: green with device type if dimensions match, red "Invalid size" if not
  • Upload Screenshots button disabled until all required types have valid screenshots
  • Upload Anyway escape hatch for incomplete uploads
  • Summary line: "2/2 required types covered" or "1/2 — iPad 13" still needed"

Device Family Requirements

The device_family field in project_config.json determines what's required:

Device Family Required Screenshots
iphone (default) iPhone 6.9" (or 6.5" fallback)
ipad iPad 13"
universal iPhone 6.9" AND iPad 13"

iPad screenshots are mandatory for universal/iPad apps. Submission will fail without them.

Apple Screenshot Dimensions

Device Resolution (portrait) Device Type
iPhone 6.9" 1320x2868, 1290x2796, 1260x2736 IPHONE_69
iPhone 6.5" (fallback) 1284x2778, 1242x2688 IPHONE_65
iPad 13" 2064x2752, 2048x2732 IPAD_PRO_13

Format: PNG or JPEG, RGB, no transparency. 1-10 screenshots per device type per locale.

Read the full file on GitHub · 94 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 94 lines · 34 tokens per session scan A 74a8990dc819

Subscribe to this mod's changes

asc-screenshot-upload is a skill published in the GitHub repository Abdullah4AI/apple-developer-toolkit (10 stars, last pushed yesterday), licensed MIT. It adds 34 tokens to every session and 782 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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