App listing optimization for ChatGPT and Claude
App listing optimization in gaintage checks your ChatGPT plugin, Claude connector or MCP server listing against each store's rules and your keywords, then lists the fixes in order. It covers the name, description, starter prompts, category, tool names and tool descriptions. Each fix shows the field, the problem and an example rewrite.
gaintage checks every field the store reads and lists the fixes in priority order. Name, description, starter prompts, category and tool descriptions are all covered.
Name, subtitle and description
Length, clear words, and the tasks your app does in the words buyers type, with no pricing or comparisons.
Starter prompts and category
Up to 3 starter prompts in ChatGPT, each a real task, and the categories that match your buyers.
Tool names and descriptions
What each tool does and when to use it. The assistant reads these to decide when to suggest your app.
Each store has different limits for name, description and prompts. All limits verified October 2026.
| Field | ChatGPT | Claude | MCP Registry |
|---|---|---|---|
| Name | 30 characters | 100 characters (server name) | 3 to 200 characters (namespace/name) |
| Short text | Subtitle, 30 characters | One-liner, 200 characters | Description, 1 to 100 characters |
| Long description | 4,000 characters | 2,000 characters | None |
| Prompts | Up to 3 starter prompts, 128 characters each | None | None |
| Categories | 1 | 1 to 5 | None |
| Screenshots | No longer shown | 3 to 5 PNG, at least 1000px wide (MCP Apps only) | None |
Source: OpenAI Apps SDK submission docs, Anthropic connector submission docs and the MCP server schema (2025-12-11), checked Oct 3, 2026.
Get your first listing score in three steps. gaintage pulls your live listing and scores every field automatically.
- 01
We pull your live listing.
- 02
We score every field against the store's rules and your target keywords.
- 03
You rewrite, resubmit, and watch the rank change day by day.
Find the keywords to put in your listing first.
Write your ChatGPT plugin description around the tasks buyers search for.
Say what tasks the plugin does, who it is for and what it cannot do. OpenAI does not allow comparisons, pricing or claims you cannot prove in the description. Use the words your buyers type, like "summarize Zoom meetings", not "all-in-one tool". Start each tool description with the action, for example "Use this when the user wants to...".
Grade one listing free with the free AI app listing grader, no signup.
Write your Claude connector description before submission, because Anthropic cannot edit it later.
Anthropic cannot edit your description after you submit it, so check it first. Each tool description must say what the tool does and when Claude should use it. It must not promote your product.
Frequently asked questions.
What makes a good starter prompt?
A real task in the words a user would type, such as "turn my last meeting into a task list". Keep it under 128 characters.
Can I put my price in a ChatGPT plugin description?
No. OpenAI's rules do not allow pricing or promotions in the description.
Does the listing affect chat suggestions?
Yes. ChatGPT uses tool metadata, like names and descriptions, when it decides which plugin to suggest.
How long can a Claude one-liner be?
200 characters.
Is there a free check?
Yes. The AI app listing grader checks one listing for free.
New to review? Learn how to submit an app to ChatGPT step by step.
Related features. Use them with listing fixes.
- App store keyword research
New keywords with high volume and low competition for your category.
- App keyword gap
Keywords your competitors rank for that you don't.
- App ranking tracker
Daily position for each keyword in ChatGPT, Claude and MCP registries.
Back to all features.