GitHub Container Registry API Rules

aid: github-container-registry:rules
name: GitHub Container Registry Rules
description: Operational rules and constraints for using GitHub Container Registry and the GitHub Packages API.
rules:
  - name: Authentication
    description: ghcr.io image push/pull requires a Personal Access Token (classic) or GITHUB_TOKEN with appropriate scopes.
  - name: Required Scopes
    description: read:packages for pulls, write:packages for pushes, delete:packages for removals.
  - name: Personal Access Token Classic Only
    description: GitHub Packages currently supports authentication only with personal access tokens (classic) for individual users.
  - name: Visibility Inheritance
    description: Container package visibility can be public, private, or internal and is independent from the source repository unless linked.
  - name: Repository Linking
    description: Packages can be associated with a repository to inherit access control and appear in the repository UI.
  - name: OCI Distribution Spec
    description: Image push/pull operations conform to the OCI Distribution Spec at ghcr.io and Docker Image Manifest V2 Schema 2.
  - name: REST API Base
    description: All package management endpoints are served from https://api.github.com.
  - name: Rate Limits
    description: GitHub REST API enforces standard rate limits; container blob requests at ghcr.io have separate limits.
  - name: GitHub Actions Integration
    description: GITHUB_TOKEN within Actions can publish and consume container packages associated with the workflow's repository.