Add ability to fetch issue relationships (parent, blocked by, etc..)

[tommaso-moro]

The REST API has endpoints for dependencies (e.g. to see what an issue is blocked by) so that should be easy to integrate.

As to retrieving a parent's issue, at first glance there might be an API limitation making that difficult as the GET issue endpoint isn't returning information about the issue's parent in the response - this might need a closer look.

[C-Ross]

➕ I would find this useful as well, especially for parent child relationships, as we are coming to rely on those internally as opposed to textual links, and Copilot is missing important context from parent issues, or the existence of child issues.

[jordanjennings]

Would be great to not only support reading, but also support updating issue dependencies via MCP.

[chuks-qua]

@tommaso-moro you could use my mcp while we are awaiting this to be implemented. link: https://github.com/[chuks-qua/github-issues-mcp-server](https://github.com/chuks-qua/github-issues-mcp-server).

does all you need.

I would love this to be assigned to me, although go lang is not my strong suite