This repository provides a GitHub Action (stale-repos) that scans a GitHub organization or user account to identify repositories that have been inactive for a configurable number of days. It is implemented as a Python script packaged in a Docker container, using the PyGithub library to interact with the GitHub API. The action supports authentication via personal access token or GitHub App installation, and can optionally include additional metrics such as days since last release or pull request. Output is generated as both a Markdown report and JSON, and can be automatically added to the GitHub Actions workflow summary. The codebase is well-structured with clear separation of concerns (auth, env, markdown, main logic), comprehensive test coverage, and modern Python tooling (uv, type hints, linting). It is actively maintained with a robust CI/CD pipeline and follows semantic versioning.