[Feature] Show similar issues before submitting issues

[samber]

🏷️ Discussion Type

Product Feedback

💬 Feature/Topic Area

Issues

Body

"duplicated" is probably the most used label on GitHub

What about adding a RAG that finds similar issues and potential duplicates? Repository maintainers will save time if you find them before issue submission.

Most contributors never search for existing issues about a subject.

I'm even sure this has been suggested before. Before opening this new discussion, I spent 1min in the discussion search engine, but did not find any similar issues. But if you compare a 10-line issue body with the rest of the active issues, it's getting VERY easy to dedup.

I see some bots that do pretty much the same.

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[msahlan01-alt]

Implementing semantic duplicate detection is essential for creating Issues effectively.

As users input the title and description, GitHub must automatically display similar Issues, Discussions, and Pull Requests using semantic search rather than depending solely on keyword matching.

This approach will significantly reduce duplicate reports, improve triage efficiency, and ensure that contributors find existing conversations before submitting a new issue.

Moreover, incorporating a similarity score (e.g., a 92% match) will make these suggestions even more actionable and beneficial.