Pressure-test a coding approach with Copilot
Use /spar to have Copilot question assumptions and point out risks or tradeoffs.
/spar
This command helps identify potential risks and challenges by questioning assumptions.
Spar: Have we considered the performance implications of this approach under heavy load? What are the potential security vulnerabilities if user input is not properly sanitized? Are there alternative solutions that might be more scalable or maintainable in the long run?
Employ the `/spar` slash command to challenge your coding approach. Copilot will question your assumptions, highlight potential risks, and discuss tradeoffs, acting as a critical reviewer.
This command simulates a peer review or red-teaming process, surfacing potential issues before they become problems.
- A guide to slash commands in the GitHub Copilot app ↗GitHub Blog · GitHub Blog: Copilot · Aug 6, 2026 · quoted as shared
First seen on Subvolts Aug 6, 2026. Updated Sep 11, 2026. Spotted a problem? Tell us.
- A guide to slash commands in the GitHub Copilot appMicrosoft · GitHub Blog: Copilot · Aug 6, 2026
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Questions people ask
- Which AI tools does this work with?
- The sources used it with Copilot.
- Where did this come from?
- GitHub Blog (GitHub Blog: Copilot). Subvolts collected, normalized and credited it; the link above opens the original.