asc-metadata

asc-metadata is a skill for Claude Code, Codex from raydeveloperF/App-Store-Connect-release-kit. It costs 70 tokens per session (1,105 once invoked), scanned A, original, MIT.

A writing workflow for App Store Connect, Apple's service for publishing and managing iOS apps, focused on app subtitles, promotional text, and descriptions in different languages.

In plain words
What is it for?
Use it to write localized App Store descriptions, subtitles, and promotional text after the app and target languages are understood.
Why use it?
It helps create store listing copy based on the actual app while avoiding unsupported claims and unrelated metadata fields.

Skill for Claude CodeCodex

Part of the asc-release-kit plugin — 6 skills shipped together

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/raydeveloperf/app-store-connect-release-kit/asc-metadata
Any agent
npx skills add raydeveloperF/App-Store-Connect-release-kit --skill asc-metadata
Clone the repo
git clone --depth 1 https://github.com/raydeveloperF/App-Store-Connect-release-kit

Made for: Claude Code, Codex.

Or install asc-release-kit, the plugin that ships this one along with the rest of its 6 skills.

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-metadata

README.md
[![agentmods](https://agentmods.dev/badge/skills/raydeveloperf/app-store-connect-release-kit/asc-metadata.svg)](https://agentmods.dev/skills/raydeveloperf/app-store-connect-release-kit/asc-metadata)
Your own site
<a href="https://agentmods.dev/skills/raydeveloperf/app-store-connect-release-kit/asc-metadata"><img src="https://agentmods.dev/badge/skills/raydeveloperf/app-store-connect-release-kit/asc-metadata.svg" alt="Measured on agentmods" height="20"></a>
Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,105 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 $0.00070 $0.01105
Opus 5 $0.00035 $0.00553
Sonnet 5 $0.00014 $0.00221
Haiku 4.5 $0.00007 $0.00111

Measured 3d ago against content hash 813a9d2335c4, 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 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.

skills/asc-metadata/SKILL.md · 140 lines

How it starts

The opening of the file, as written. The whole thing — 140 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ASC Metadata

Use this skill to write localized App Store Connect copy for these fields only:

  • Subtitle
  • Promotional Text
  • App Description

Do not generate keywords, screenshot headlines, release notes, privacy copy, or pricing copy unless the user separately asks for them.

Required Inputs

The only input that cannot be inferred: target locales (e.g. en-US, zh-Hans).

If target locales are missing and were not provided by the caller, ask once and stop.

Writing style defaults to 平静内敛 when not specified. Do not ask for it.

Project Context First

Before writing specific metadata, gather enough context to understand the app. If a local project or workspace is available, inspect relevant files read-only unless the user asks for edits:

  • README, product docs, planning docs, marketing copy, or existing App Store metadata.
  • App entry points, main screens, feature modules, localization files, and screenshots if available.
  • Existing title, subtitle, keywords, screenshots, and product positioning, if present.

Build a short working brief before drafting:

  • App name, platform, category, and target audience.
  • Core user job and the 3-5 strongest implemented features.
  • Main emotional promise or practical value.
  • Constraints from existing brand voice, screenshots, title, or keywords.
  • Locale-specific wording risks, cultural fit, and product differences.

If the available project context is too thin, ask focused follow-up questions or label the output as a context-limited draft. Do not invent unsupported features, claims, awards, integrations, subscription terms, privacy guarantees, or medical/legal/financial promises.

Field Rules

Use current App Store Connect limits unless the user provides different constraints:

  • Subtitle: at most 30 characters.
  • Promotional Text: at most 170 characters.
  • App Description: at most 4000 characters, plain text, line breaks allowed, no HTML.

For every locale:

  • Write in the target language, not merely translated English.
  • Preserve the requested writing style.
  • Keep claims grounded in the inspected project.
  • Avoid duplicate wording between subtitle and the first line of the description when possible.
  • Prefer concrete value over generic praise.
  • Avoid filler like "best", "ultimate", "revolutionary", and unsupported superlatives.
  • Do not mention Apple, iPhone, iOS, App Store, or platform terms as selling points unless directly relevant and allowed.

Read the full file on GitHub · 140 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 3d ago First seen · 140 lines · 70 tokens per session scan A 813a9d2335c4

Subscribe to this mod's changes

asc-metadata is a skill published in the GitHub repository raydeveloperF/App-Store-Connect-release-kit (2 stars, last pushed 3mo ago), licensed MIT. It adds 70 tokens to every session and 1,105 once invoked, about $0.0003 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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