COP-026: Deprecated SSE Transport - GitHub Copilot

Summary

• Rule ID: COP-026
• Severity: LOW
• Category: GitHub Copilot
• Normative Level: SHOULD
• Auto-Fix: Yes (unsafe)
• Verified On: 2026-07-31

Applicability

• Tool: github-copilot
• Version Range: unspecified
• Spec Revision: unspecified

Evidence Sources

• https://docs.github.com/en/copilot/how-tos/copilot-on-github/customize-copilot/add-custom-instructions/add-repository-instructions

Test Coverage Metadata

• Unit tests: true
• Fixture tests: false
• E2E tests: false

Examples

The following examples demonstrate what triggers this rule and how to fix it.

Invalid

{
  "transport": "sse"
}

Valid

{
  "transport": "streamable-http"
}