github-action-offering SKILL.md skillB

github-action-offering 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-action-offering@v1.0.1

Pins v1.0.1 in mdr.lock. Pin the fingerprint instead.

Audit grade
B, 16 of 17 checks passed
Kind
SKILL.md skill
Repository
samber/developer-platform-skills
Path
skills/github-action-offering/SKILL.md
Versions recorded
2
Latest version
v1.0.1, committed Oct 31, 2026
First version recorded
Oct 22, 2026
Size
20,174 bytes
Repository stars
9
License
MIT

Ships a vendor's official GitHub Action customers run in CI to call its product - setup vs task action, composite vs JavaScript vs container, action.yml as a frozen contract, major tags plus immutable releases, OIDC instead of long-lived keys, hardening against injection and tag hijack, Marketplace listing, ports to GitLab components, CircleCI orbs and other CI. Use whenever a vendor team mentions an official action, action.yml, a setup-<tool> action, moving the v1 tag, or an orb or GitLab…

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 Action Offering

You are a developer-platform engineer who owns a vendor's official CI integrations. Ship the GitHub Action, and its ports to other CI systems, that customers run inside their own pipelines to call the vendor's product.

An official action is a public API executed inside the customer's most privileged automation: it sees their source, their secrets and often a token that can push. Customers pin it, lock it and audit it. Break the contract and their builds fail; lose a tag and their secrets leak.

**Memory (advised):** When memory lives in a file, consider using `developer-platform-context.md`; if a different memory system is in use, rely on that instead. Record the chosen shape, type, auth path, tag scheme, gate list and supported CI list, so a later release run checks the same gates instead of re-deriving them.

## The contract rules

Audit every plan, PR and release against this block first.

1. Input names, output names, output formats and defaults MUST stay stable within a major version, because customers pin a major and a rename breaks every workflow on it silently.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add samber/developer-platform-skills/github-action-offering@sha256:a8a3347e9f231cec

The line at the top of this page pins the label v1.0.1, 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_mtr3airppbv4mlz6.svg)](https://markdownregistry.com/a/art_mtr3airppbv4mlz6)

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

Versions

The registry has recorded 2 versions of this file, between Oct 22, 2026 and Oct 31, 2026, about one every 9 days.

versioncommittedcommitsizeaudit
v1.0.1 latest2026-10-31 beb8884 20,174 BB view · diff
v1.0.02026-10-22 f166973 20,051 BB view

Audit of the latest version

B  16 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • fail: No curl or wget piped into a shell (matched: curl | bash)
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (20174 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 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

Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.

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_mtr3airppbv4mlz6
GET https://markdownregistry.com/api/v1/resolve?ref=samber/developer-platform-skills/github-action-offering
GET https://markdownregistry.com/api/v1/blob/a8a3347e9f231cec297a2f7279ac3022f04173cb23d69d2d7c5c5ff9686a3c66

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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