GitHub’s October 15 update lets Copilot in Slack and Microsoft Teams discuss multiple repositories in one conversation. Example prompts include finding all open pull requests or investigating an issue that spans frontend and backend repos.
The update also improves shared-thread context, repository switching and reliability. This is a convenience feature for teams already using the integration, not a reason to adopt Slack solely for one report.
For a two-person software business, the relevant workflow is a daily cross-repository question: what changed, what needs review and what is blocked. Test the answer against GitHub before trusting it as a project-status summary.
If the current team works outside Slack or Teams, borrow the prompt design instead: a concise multi-repo morning status can still be built with GitHub APIs and an existing assistant.
What to do: Review the multi-repo examples and, if the integration is already in use, ask for open PRs and unresolved issues across two repositories in one query.