Listing Standards Skill: What It Does and How to Install It

Helps the operator of an app marketplace write the rulebook every third-party listing must meet.

Installs: 9.7K; on skills.sh
Stars: 9; on GitHub
Files: 3; besides SKILL.md
Updated: Nov 2026; last repo commit

app-marketplace-listing-standards makes Claude act as a marketplace-content advisor and write the listing-content rulebook: required fields with objective reject criteria, screenshot and video specs, description quality bars, category taxonomy, localization posture, badge display rules, and decay enforcement for stale listings.

It loads when you mention listing standards, a quality bar, media requirements, marketplace categories, rejection criteria or delisting stale listings. It drafts in nine steps, checking each with you before the next. It is operator side only and bundles two reference files and no scripts.

Good for

Marketplace teams opening to third-party vendors
Reviewers who want rejections tied to an objective rubric
Teams with outdated listings and dead support links

Install app-marketplace-listing-standards

Claude Code

Copy this prompt.

Install the app-marketplace-listing-standards skill in Claude Code. Run this command:

/plugin marketplace add samber/developer-platform-skills
/plugin install developer-platform-skills@developer-platform-skills

Then check that it loaded and tell me how to use it.

2
Paste it into Claude Code. It shows the change and asks before running it.

The README installs every skill in the repo (61 skills/*/SKILL.md in the git tree), because skills here reference each other. app-marketplace-listing-standards is one of them. Pick one route, not both.

From the project README. Source.

What's in the skill

When it loads

Write the listing-content rulebook for the operator of a B2B SaaS app marketplace - the standard every third-party listing must meet, covering required fields with objective reject criteria, screenshot and video specs, description quality bars, category taxonomy design, localization posture, badge display rules, and staleness/decay enforcement. Use whenever the user mentions listing standards, a listing rubric or marketplace quality bar, screenshot or media requirements, marketplace categories, rejection criteria, or delisting stale listings - even if they never say "listing standards". Operator side only. Do NOT use for optimizing a vendor's own listing - use samber/developer-platform-skills@integration-listing-optimization instead.

Sections in SKILL.md

Interview
Who evaluates and who maintains
Workflow
1. Field-spec strictness
2. Media specs
3. Description quality bar and rejection triggers
4. Category taxonomy
5. Localization posture
6. Badge display
7. Decay enforcement
Failure modes
Measurement
Invocation examples

Key facts

Author: Samuel Berthe
Repo: samber/developer-platform-skills, which holds 61 skills
License: MIT (LICENSE, README, plugin.json and SKILL.md all say MIT)
Version in SKILL.md: 1.0.3
Installs on skills.sh: 9,686 (Nov 2, 2026)
GitHub stars (repo): 9 (Nov 2, 2026)
Last commit (repo): Nov 1, 2026
What installs: 4 files including SKILL.md: 2 reference files and evals/evals.json; no scripts
Needs: The other skills in the repo; the README says to install all of them
Works in: Claude.ai, Claude Code, Codex, Cursor, Gemini CLI, and tools that read skills.sh installs

What it includes

Asks ten questions about curation, volume, buyers, release cadence and languages.
Try: “Half our marketplace listings have outdated screenshots and dead support links. Design a staleness policy that fixes this without delisting half the catalog.”
Interview
Settles curation rung, volume, buyer mode, release cadence and languages.
1. Fix the design inputs
Writes required fields and chooses how strict the spec is.
2. Field skeleton and strictness
Sets screenshot and video specs and an accessibility floor.
3. Media specs
Writes the description quality bar and the content-rejection taxonomy.
4. Description bar and rejection triggers
Designs how listings are categorized.
5. Category taxonomy
Decides how listings handle languages and regions.
6. Localization posture
Writes when and how badges display.
7. Badge display rules
Writes the policy for stale listings.
8. Decay enforcement
Sets measurement and checks the rulebook against the gates.
9. Measurement and gate check

From the official docs

Permissions

Low risk

This skill writes design advice and bundles no scripts, so the main thing to watch is where your agent saves notes.

What it can do

Read your data
Create and change things
Delete things
Read-only mode

Watch out for

It may save notes to developer-platform-context.md
SKILL.md says that when your agent keeps memory in a file, it should consider using this file name. Our advice: keep it out of commits if it holds company plans. github.com

Technical details

Scopes	Asks you interview questions and writes a design document from your answers

Questions

How do I install app-marketplace-listing-standards?

Use the install box at the top of this page. The README says to install every skill in samber/developer-platform-skills, not one, because the skills hand work to each other. Pick one route per agent.

Does app-marketplace-listing-standards work in Claude, Codex and Cursor?

The README documents install routes for Claude.ai (plugin marketplace), Claude Code, Codex, Cursor, Gemini CLI and the skills.sh CLI. The install box lists each one.

What does it ask me before it designs anything?

SKILL.md lists ten questions to ask first, and the answers change the later steps. Have your current setup and constraints ready.

Does it run scripts or need an API key?

It bundles no scripts. The folder holds SKILL.md, reference Markdown files and an evals file, and the skill works by asking you questions and writing advice.

Is app-marketplace-listing-standards safe to install?

It bundles no scripts, so installing it adds instructions and reference files rather than programs. SKILL.md also suggests that, if your agent keeps notes in a file, it uses developer-platform-context.md. Our advice: keep that file out of public commits if it holds company plans, and check any figures the skill cites against their sources before quoting them to customers.

Is this for vendors optimizing their own listing?

No. SKILL.md says it is operator side only and points vendors to integration-listing-optimization.

Information

updated Nov 2, 2026

Repository: samber/developer-platform-skills
Folder: skills/app-marketplace-listing-standards

samber/developer-platform-skills skills.sh

Sources

Docs, issue trackers and discussions this page is built from.

Show all 2

samber/developer-platform-skills README · github.com
app-marketplace-listing-standards SKILL.md · github.com