GitHub Sub-Issues Management

Manage GitHub parent-child issue relationships using the gh-sub-issue extension. Link existing issues, create new sub-issues, query relationships, and maintain issue hierarchies.

Overview

gh-sub-issue is a GitHub CLI extension that provides commands for managing official parent-child relationships between GitHub issues. Unlike custom solutions that close and recreate issues, gh-sub-issue links existing issues directly while preserving their numbers.

Key Advantage: Non-destructive linking - issues keep their original numbers and history.

Installation

The extension is pre-installed in the Langstar devcontainer. To verify:

gh extension list | grep sub-issue

To install manually: