Asc Metadata Sync logo

Asc Metadata Sync

Community
hanamizuki
asc-metadata-sync

Sync, validate, and apply App Store metadata with the current asc canonical metadata workflow. Use when updating metadata, localizations, keywords, or migrating legacy fastlane metadata.

Overview

Publisherhanamizuki
Repositorysolopreneur
Skill nameasc-metadata-sync
Stars
150
Forks
9
Bundled files
1
LicenseMIT
Links
Skill sourceRepository
  • Markdown instructions

    A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.

  • Works with any LLM

    AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.

  • 1 bundled files

    Scripts, templates, and references the model can read while it works. Files are read-only and never executed.

  • Open source

    Published by hanamizuki on GitHub. Read the source before you install it.

Installation

Install the Asc Metadata Sync AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

1

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

  1. Open the app and go to Plugins → Skills.
  2. Choose "Install from GitHub".
  3. Paste the skill folder URL below and confirm.
  4. Enable the skill in any chat where you want it available.
Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.
2

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills
git clone --depth 1 https://github.com/hanamizuki/solopreneur.git /tmp/solopreneur
mkdir -p .claude/skills
cp -r /tmp/solopreneur/plugins/claude/ios-dev/skills/asc-metadata-sync .claude/skills/asc-metadata-sync
Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Asc Metadata Sync in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Asc Metadata Sync on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Asc Metadata Sync is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

  • Loaded only when it is needed

    The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.

  • Switch models mid-chat

    Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

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

bash
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:

bash
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

Copyright is not a localization field. Manage it with:

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

3. Validate before upload

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

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

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

4. Preview and apply

Run a dry run first:

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

Apply after the plan looks correct:

bash
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:

bash
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"

For a review-artifact workflow with explicit approval before mutation, use the metadata review commands introduced in asc 2.6.1:

bash
asc metadata plan --app "APP_ID" --version "1.2.3" --platform IOS --dir "./metadata" --review-dir ".asc/metadata/review"
asc metadata approve --review-dir ".asc/metadata/review" --all
asc metadata status --review-dir ".asc/metadata/review" --output table
asc metadata apply --app "APP_ID" --version "1.2.3" --platform IOS --dir "./metadata" --review-dir ".asc/metadata/review" --confirm

Use asc metadata approve --key "version:1.2.3:en-US:whatsNew" or --scope app-info,version when the user wants selective approval artifacts before the guarded apply. Version-scoped keys include the App Store version string.

Keyword-only workflow

Use this when only the version-localization keywords field should change:

bash
asc metadata keywords diff --app "APP_ID" --version "1.2.3" --platform IOS --dir "./metadata"
asc metadata keywords apply --app "APP_ID" --version "1.2.3" --platform IOS --dir "./metadata" --confirm

For importing keyword research:

bash
asc metadata keywords import --dir "./metadata" --version "1.2.3" --locale "en-US" --input "./keywords.csv"
asc metadata keywords sync --app "APP_ID" --version "1.2.3" --platform IOS --dir "./metadata" --input "./keywords.csv"

Quick field updates

For one-off version-localization edits, pass an explicit version selector. Use --version-id for deterministic updates when you already have it, or --version plus --platform when working from a version string.

bash
asc apps info edit --app "APP_ID" --version-id "VERSION_ID" --locale "en-US" --whats-new "Bug fixes and improvements"
asc apps info edit --app "APP_ID" --version "1.2.3" --platform IOS --locale "en-US" --description "Your app description here"
asc apps info edit --app "APP_ID" --version "1.2.3" --platform IOS --locale "en-US" --keywords "keyword1,keyword2,keyword3"
asc apps info edit --app "APP_ID" --version "1.2.3" --platform IOS --locale "en-US" --support-url "https://support.example.com"

For app-info fields, prefer the post-create setup command:

bash
asc app-setup info set --app "APP_ID" --primary-locale "en-US" --privacy-policy-url "https://example.com/privacy"
asc app-setup info set --app "APP_ID" --locale "en-US" --name "Your App Name" --subtitle "Your subtitle"

Lower-level localization files

Use .strings files when the user specifically wants import/export files instead of canonical JSON:

bash
asc localizations list --version "VERSION_ID" --output table
asc localizations download --version "VERSION_ID" --path "./localizations"
asc localizations upload --version "VERSION_ID" --path "./localizations" --dry-run
asc localizations upload --version "VERSION_ID" --path "./localizations"

For app-info localizations:

bash
asc apps info list --app "APP_ID" --output table
asc localizations list --app "APP_ID" --type app-info --app-info "APP_INFO_ID" --output table
asc localizations download --app "APP_ID" --type app-info --app-info "APP_INFO_ID" --path "./app-info-localizations"
asc localizations upload --app "APP_ID" --type app-info --app-info "APP_INFO_ID" --path "./app-info-localizations" --dry-run
asc localizations upload --app "APP_ID" --type app-info --app-info "APP_INFO_ID" --path "./app-info-localizations"

Legacy fastlane metadata

Use this only for existing fastlane-format trees:

bash
asc migrate export --app "APP_ID" --version-id "VERSION_ID" --output-dir "./fastlane"
asc migrate validate --fastlane-dir "./fastlane"
asc migrate import --app "APP_ID" --version-id "VERSION_ID" --fastlane-dir "./fastlane" --dry-run
asc migrate import --app "APP_ID" --version-id "VERSION_ID" --fastlane-dir "./fastlane" --confirm

Deliverfile metadata_path and screenshots_path values take precedence and resolve relative to the Deliverfile. With --fastlane-dir "./fastlane", use metadata_path "./metadata" rather than "./fastlane/metadata"; the latter resolves to ./fastlane/fastlane/metadata. Fix stale values in the Deliverfile, or remove them to use the conventional metadata/ and screenshots/ directories.

Paths outside the selected Fastlane directory fail unless the operator explicitly trusts them with --allow-external-metadata or --allow-external-screenshots. Keep those flags off for untrusted imports.

Inspect the validation body as well as the process exit: asc migrate validate can return a report with valid: false and a nonzero errorCount while exiting 0. A confirmed import can print status: "partial" with completed stages and failure details while exiting nonzero, so non-empty stdout does not mean success.

Character limits

FieldLimit
Name30
Subtitle30
Keywords100 comma-separated characters
Description4000
What's New4000
Promotional Text170

Agent behavior

  • Start with asc metadata pull unless the user specifically asks for .strings or fastlane metadata.
  • Always run asc metadata validate before remote writes.
  • Preview remote changes with --dry-run when the command supports it.
  • Use asc metadata plan plus approve/status when the user wants a durable review artifact before apply.
  • For quick edits, always pass --version-id or --version plus --platform; do not rely on ambiguous latest-version behavior.
  • Keep app-info fields and version fields separate.
  • Use --output table for human verification and JSON for automation.

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

Frequently asked questions

What does the Asc Metadata Sync AI skill do?

Sync, validate, and apply App Store metadata with the current asc canonical metadata workflow. Use when updating metadata, localizations, keywords, or migrating legacy fastlane metadata.

Why use Asc Metadata Sync on TypingMind?

Because you install it once and use it with any model. Asc Metadata Sync is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Asc Metadata Sync in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/hanamizuki/solopreneur/tree/main/plugins/claude/ios-dev/skills/asc-metadata-sync. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Asc Metadata Sync?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Asc Metadata Sync?

As many as you like. As long as a model supports skills, you can use Asc Metadata Sync with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Asc Metadata Sync AI skill free?

Yes. It is published on GitHub by hanamizuki under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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