GitHub Introduces Duplicate Issue Detection in Public Preview and Expanded Model Context Protocol Support
GitHub has launched a public preview of duplicate issue detection to reduce triage overhead for maintainers, alongside new Model Context Protocol support for issue fields.

Managing duplicate issues is a major operational challenge for open-source maintainers and enterprise teams alike. Repeated bug reports and feature requests waste significant triage time, requiring manual validation, closing, and linking. GitHub's new duplicate issue detection feature aims to automate this process by scanning incoming submissions and flagging similarities to existing reports.
Primary source
Open GitHub Changelog ↗This article summarizes the source. Check the original for full details and conditions.
Comparison
| Aspect | Before / Alternative | After / This |
|---|---|---|
| Duplicate Detection | Manual search and triage by maintainers | Automated background scanning and linking |
| Issue Field Access | Manual updates or rigid GraphQL/REST API scripting | Direct manipulation via Model Context Protocol (MCP) |
| Triage Speed | Slow, human-dependent review cycles | Near instant detection of overlapping issues |
Action Checklist
- Enable the duplicate detection preview in your target repository settings Availability might roll out gradually depending on organization settings
- Configure Model Context Protocol integrations for GitHub Issues Verify your local LLM or agent environment supports the new issue fields MCP
- Establish a feedback loop for false positives in automated issue linking Monitor how the system handles closely related but distinct feature requests