What is asc-metadata-sync?

A workflow for keeping an iOS app’s store listing information in local files and App Store Connect, Apple’s app-publishing service, aligned.

Use it to pull app metadata into canonical local files, edit it, validate or migrate it, and push the changes back to App Store Connect.

It removes the need to update store descriptions, keywords, URLs, and translations manually in two separate places.

asc-metadata-sync — Skill for Claude Code and Codex by moasq: A workflow for keeping an iOS app’s store listing…

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/moasq/ios-dev-agent/asc-metadata-sync

Any agent

npx skills add moasq/ios-dev-agent --skill asc-metadata-sync

Clone the repo

git clone --depth 1 https://github.com/moasq/ios-dev-agent

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/moasq/ios-dev-agent/asc-metadata-sync.svg)](https://agentmods.dev/skills/moasq/ios-dev-agent/asc-metadata-sync)

Your own site

<a href="https://agentmods.dev/skills/moasq/ios-dev-agent/asc-metadata-sync"><img src="https://agentmods.dev/badge/skills/moasq/ios-dev-agent/asc-metadata-sync.svg" alt="Measured on agentmods" height="20"></a>

Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,531 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.

Model	Per session	Once invoked
Fable 5	$0.00032	$0.01531
Opus 5	$0.00016	$0.00766
Sonnet 5	$0.00006	$0.00306
Haiku 4.5	$0.00003	$0.00153

Measured 3d ago against content hash e643f861e940, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

asc-metadata-sync 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 3d 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.

.agents/skills/asc-metadata-sync/SKILL.md · 156 lines

How it starts

The opening of the file, as written. The whole thing — 156 lines — stays where its author put it; the contents beside it link to each section on GitHub.

asc metadata sync

Use this skill to keep App Store metadata in sync with App Store Connect. Prefer the canonical asc metadata workflow for app-info and version localization fields. Use the lower-level asc localizations and asc migrate commands only when the user specifically needs .strings files or legacy fastlane-format metadata.

Current canonical workflow

1. Pull canonical metadata

asc metadata pull --app "APP_ID" --version "1.2.3" --platform IOS --dir "./metadata"

If the app has multiple app-info records, resolve the app-info ID first and pass it explicitly:

asc apps info list --app "APP_ID" --output table
asc metadata pull --app "APP_ID" --app-info "APP_INFO_ID" --version "1.2.3" --platform IOS --dir "./metadata"

2. Edit local files

Canonical files are written under:

metadata/app-info/<locale>.json for app-level fields: name, subtitle, privacyPolicyUrl, privacyChoicesUrl, privacyPolicyText
metadata/version/<version>/<locale>.json for version fields: description, keywords, marketingUrl, promotionalText, supportUrl, whatsNew

asc versions update --version-id "VERSION_ID" --copyright "2026 Your Company"

3. Validate before upload

asc metadata validate --dir "./metadata" --output table

For subscription apps, include the extra Terms of Use / EULA heuristic:

asc metadata validate --dir "./metadata" --subscription-app --output table

4. Preview and apply

Run a dry run first:

asc metadata push --app "APP_ID" --version "1.2.3" --platform IOS --dir "./metadata" --dry-run --output table

Apply after the plan looks correct:

asc metadata push --app "APP_ID" --version "1.2.3" --platform IOS --dir "./metadata"

Use asc metadata apply when the user wants the apply-named command shape for the same canonical files:

asc metadata apply --app "APP_ID" --version "1.2.3" --platform IOS --dir "./metadata" --dry-run
asc metadata apply --app "APP_ID" --version "1.2.3" --platform IOS --dir "./metadata"

Read the full file on GitHub · 156 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.

3d ago First seen · 156 lines · 32 tokens per session scan A e643f861e940

Subscribe to this mod's changes

asc-metadata-sync is a skill published in the GitHub repository moasq/ios-dev-agent (4 stars, last pushed 3mo ago), licensed MIT. It adds 32 tokens to every session and 1,531 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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