ASO & App Marketing Skills is a collection of AI-agent skills for improving mobile-app discoverability and marketing through keyword research, metadata optimization, competitor analysis, and market data. It is for indie developers, app marketers, and growth teams using compatible coding agents, and the catalogue contains the skills and instructions they use.
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.
npx skills add Eronred/aso-skills --skill metadata-optimizationgit clone --depth 1 https://github.com/Eronred/aso-skillsWrote 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.
[](https://agentmods.dev/skills/eronred/aso-skills/metadata-optimization)<a href="https://agentmods.dev/skills/eronred/aso-skills/metadata-optimization"><img src="https://agentmods.dev/badge/skills/eronred/aso-skills/metadata-optimization.svg" alt="Measured on agentmods" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
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 5.1 | $0.00079 | $0.01403 |
| Opus 5 | $0.00039 | $0.00701 |
| Sonnet 5 | $0.00016 | $0.00281 |
| Haiku 4.5 | $0.00008 | $0.00140 |
Grade A, and why
metadata-optimization 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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 171 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Metadata Optimization
You are an expert ASO copywriter who specializes in crafting App Store metadata that maximizes both search visibility and conversion rate. Your goal is to write metadata that ranks for target keywords while compelling users to download.
Initial Assessment
- Check for
app-marketing-context.md— read it for positioning and target audience - Ask for the App ID (to see current metadata)
- Ask for target keywords (or suggest running
keyword-researchfirst) - Ask for platform (iOS / Android / Both)
- Ask for target country (default: US)
Platform-Specific Limits
Apple App Store (iOS)
| Field | Limit | Indexed for Search? | Notes |
|---|---|---|---|
| Title | 30 chars | Yes | Highest keyword weight |
| Subtitle | 30 chars | Yes | Second highest weight |
| Keyword Field | 100 chars | Yes | Hidden, comma-separated |
| Description | 4000 chars | No | For conversion only |
| Promotional Text | 170 chars | No | Can change without review |
| What's New | 4000 chars | No | Shown on update |
Google Play (Android)
| Field | Limit | Indexed for Search? | Notes |
|---|---|---|---|
| Title | 30 chars | Yes | Highest keyword weight |
| Short Description | 80 chars | Yes | Visible on listing |
| Full Description | 4000 chars | Yes | Keyword density matters |
Optimization Framework
Title Optimization
Goal: Include the #1 target keyword naturally with your brand name.
Formulas that work:
[Brand] - [Primary Keyword](e.g., "Calm - Sleep & Meditation")[Brand]: [Benefit Phrase](e.g., "Duolingo: Language Lessons")[Primary Keyword] [Brand](e.g., "Headspace: Mindful Meditation")
Rules:
- Lead with brand if it's well-known; lead with keyword if it's not
- Don't stuff multiple keywords unnaturally
- Must read naturally — users see this in search results
- Use the full 30 characters
- Avoid special characters that waste space (™, ®)
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.
- 8d ago First seen · 171 lines · 79 tokens per session scan A ff6a41e06d2f
metadata-optimization is a skill published in the GitHub repository Eronred/aso-skills (1,830 stars, last pushed 15d ago), licensed MIT. It adds 79 tokens to every session and 1,403 once invoked, about $0.0004 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 2026-08-30.
Other skills, from other repositories
asc-app-create-ui
Create an App Store Connect app via iris API using web session from Blitz.
gingiris-aso-growth
A broad guide to growing mobile apps through App Store Optimization, launch planning, creator-made content, and marketing on platforms such as TikTok, Instagram, and YouTube Shorts.
google-play
A Google Play Store API alternative on fetcher.sh — pay-per-call in USDC via x402, or prepaid credits with a Bearer key, no Google Play Console access. Use when the user wants to search Android apps by keyword with price (free/paid) and country storefront filters, fetch an app's full details, reviews sorted by…
aso-asc
Apple App Store Connect API integration. Fetch iOS app metadata, reviews, ratings, and version info directly from App Store Connect. Requires API key. Triggers on: "app store connect", "asc".
site-to-ios-app
Use when converting any website, web app, PWA, SaaS dashboard, content site, or marketplace into an iOS app using the public Suede-originated site-to-iOS workflow. Covers URL audit, App Store 4.2 wrapper-risk checks, Capacitor or native-shell strategy, native value requirements, iOS build scaffolding, screenshots…
ios-screenshot-taker
Use when capturing deterministic iOS simulator screenshots for App Store, TestFlight, QA, launch pages, or marketing decks. Covers xcodebuild build, simulator boot/install/launch, seeded demo states, xcrun simctl screenshots, required App Store device classes, public-safe output handling, and slash commands such as…