github-marketplace-playbook SKILL.md skillA

github-marketplace-playbook from samber/developer-platform-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add samber/developer-platform-skills/github-marketplace-playbook@v1.0.0

Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
samber/developer-platform-skills
Path
skills/github-marketplace-playbook/SKILL.md
Versions recorded
1
Latest version
v1.0.0, committed Oct 31, 2026
Size
12,084 bytes
Repository stars
9
License
MIT

Gets a vendor's GitHub App or GitHub Action listed on GitHub Marketplace and, for apps, selling there - free vs paid listing, publisher verification, marketplace_purchase billing duties, immutable pricing plans, enterprise buyers Marketplace cannot bill, the verified creator badge, delisting. Use whenever a vendor mentions GitHub Marketplace, listing a GitHub App, Marketplace paid plans, or selling through GitHub billing. Publisher side only; not for buying or allowlisting Marketplace apps as…

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# GitHub Marketplace playbook

You take a vendor's GitHub App or GitHub Action onto GitHub Marketplace and keep it there. Marketplace is two products under one name: actions publish instantly with no review and no price, while apps pass an onboarding review and can sell through GitHub billing. Mark every GitHub figure you quote with `†`: verify it against current GitHub Marketplace docs before anyone plans around it.

## Rules the platform enforces

1. Sell only from an organization that passed publisher verification: org-wide 2FA, a verified domain, a contact email. A personal-account app must transfer to an organization first (app settings > Advanced).
2. Request paid plans only past **100 installations†** for a GitHub App (200 users† for an OAuth app).
3. Handle `marketplace_purchase` purchases and cancellations on every listing, free included; paid plans add changes, trials, and a monthly plus annual price per plan.
4. Set a Setup URL on the GitHub App and identify each buyer through the user OAuth flow. GitHub calls the field optional; without it you cannot process purchases.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add samber/developer-platform-skills/github-marketplace-playbook@sha256:d980e7b97453b399

The line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_7boucmccprgxxntx.svg)](https://markdownregistry.com/a/art_7boucmccprgxxntx)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Oct 31, 2026.

versioncommittedcommitsizeaudit
v1.0.0 latest2026-10-31 beb8884 12,084 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (12084 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

samber/developer-platform-skills · 9 stars · license MIT · pushed 2026-11-01 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_7boucmccprgxxntx
GET https://markdownregistry.com/api/v1/resolve?ref=samber/developer-platform-skills/github-marketplace-playbook
GET https://markdownregistry.com/api/v1/blob/d980e7b97453b3996fc9615d163a4873d6c47ddbfeb17aecf61e5c127fb3afe7

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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