
Market Movers
Spot App Store chart gainers, losers, and new top-100 entries so you can react to category shifts before competitors.
Overview
Market Movers is an agent skill for the Launch phase that analyzes App Store chart rank changes between snapshots to surface top gainers, losers, and new top-100 entries.
Install
npx skills add https://github.com/eronred/aso-skills --skill market-moversWhat is this skill?
- Runs gainers, losers, new entries, and dropped-out apps via get_market_movers and get_market_activity MCP tools
- Supports top-free, top-paid, and top-grossing charts by country and genre
- Optional full overview vs gainers-only, losers-only, or new-entries-only views
- Initial assessment ties analysis to app-marketing-context.md and user category/country
- Deep-dives moving apps with get_app and contextualizes with get_category_top
Adoption & trust: 1.6k installs on skills.sh; 1.5k GitHub stars; 3/3 security scanners passed (skills.sh audits).
What problem does it solve?
You see ranks shifting in your category but lack a repeatable way to quantify who gained, who fell, and which breakouts deserve a competitive deep dive.
Who is it for?
Indie app makers monitoring US or international chart movement in a known genre who already use or plan MCP-backed ASO tooling.
Skip if: Teams needing keyword rank tracking only, web SEO, or Google Play–only workflows without App Store chart MCP data.
When should I use this skill?
User wants chart movers, rank changes, top gainers or losers, new chart entries, dropped apps, or asks who's rising or falling on App Store charts.
What do I get? / Deliverables
You get a structured movers report scoped to chart type, genre, and country with optional deep dives on specific apps driving the shift.
- Movers overview or filtered gainers, losers, or new-entries report
- Actionable interpretation of significant rank movements with optional app deep dives
Recommended Skills
Journey fit
Chart rank movement is core app-store optimization intelligence—you act on it when distributing and ranking mobile apps. ASO subphase covers chart dynamics, category standings, and competitive rank tracking rather than web SEO or paid UA.
How it compares
Use for chart rank deltas and breakout detection; use market-pulse for macro market overview and competitor-analysis for keyword competition.
Common Questions / FAQ
Who is market-movers for?
Solo and indie mobile builders doing App Store optimization who want agent-guided analysis of who is rising and falling on top-free, top-paid, or top-grossing charts.
When should I use market-movers?
During Launch ASO when tracking chart movers, rank changes, new top-100 entries, or category market shifts; also when Grow planning competitive responses to breakout apps in your genre.
Is market-movers safe to install?
Review the Security Audits panel on this Prism page for this skill’s repo and MCP dependencies before granting network or API access in your agent environment.
SKILL.md
READMESKILL.md - Market Movers
# Market Movers Analysis You are an expert in App Store chart dynamics. Your goal is to analyze rank changes between chart snapshots, identify significant movements, and provide actionable insights about what's driving gains and losses. ## Initial Assessment 1. Check for `app-marketing-context.md` — read it for the user's app and category 2. Ask for **chart type**: top-free (default), top-paid, or top-grossing 3. Ask for **category**: all charts or specific genre (e.g. Games, Productivity) 4. Ask for **country** (default: US) 5. Ask what they want: full overview, gainers only, losers only, or new entries ## Data Collection Use these MCP tools to gather chart movement data: 1. **`get_market_movers`** — Top gainers, losers, new entries, dropped out 2. **`get_market_activity`** — Chronological feed of all significant movements 3. **`get_category_top`** — Current chart standings for context 4. **`get_app`** — Deep dive on specific apps showing movement ## Analysis Framework ### 1. Chart Movement Summary | Metric | Value | |--------|-------| | Period compared | [date] vs [date] | | Chart / Country | top-free / US | | Total significant moves | | | New entries | | | Dropped out | | | Biggest gainer | +X positions | | Biggest loser | -X positions | ### 2. Top Gainers Analysis For each top gainer: | App | Rank Change | Current | Previous | Category | Rating | |-----|-------------|---------|----------|----------|--------| **For each notable gainer, analyze:** - What likely drove the surge? (viral moment, feature update, Apple featuring, ad campaign, seasonal) - Is the gain sustainable or a spike? - What can the user learn from this app's strategy? ### 3. Top Losers Analysis For each top loser: | App | Rank Change | Current | Previous | Category | Rating | |-----|-------------|---------|----------|----------|--------| **For each notable loser, analyze:** - What might have caused the decline? (competitor launch, bad update, seasonal drop, removed from featuring) - Is the drop a concern for the user's category? - Does this create an opportunity? ### 4. New Chart Entries Apps that appeared in the top 100 for the first time: | App | Entered At | Category | Rating | Reviews | |-----|-----------|----------|--------|---------| **Analyze:** - Is this a new launch or a resurgent app? - Does it compete in the user's category? - What launch strategy did they likely use? ### 5. Dropped Out Apps that fell out of the top 100: | App | Previous Rank | Category | Rating | |-----|--------------|----------|--------| ### 6. Category-Specific Patterns If analyzing a specific genre: - Overall volatility: How many positions shifted on average? - Top 10 stability: Are the top spots locked or fluid? - Entry barrier: What rank did new entries typically land at? ## Actionable Insights ### For the User's App Based on the market movements: 1. **Immediate opportunity** — Is a competitor dropping that you can capitalize on? 2. **Threat assessment** — Is a new entrant competing for your audience? 3. **Timing insight** — Is the category trending up or down overall? 4. **Strategy takeaway** — What are gainers doing that you could replicate? ### Recommendations Table | Priority | Action | Why | Expected Impact | |----------|--------|-----|-----------------| | 1 | | | | | 2 | | | | | 3 | | | | ## Output Format ### Quick Summary (default) 3-5 bullet points with the most important movements and what they mean. ### Detailed Report (if requested) Ful