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[AW Top 10] 08 Harden MCP gateway and checkout before agent start #72887

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Description

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Priority 8/10 | 4 source issues | Impact 4/5 | Confidence 2/5 | Effort 3/5

One assignment, one coherent fix

Workflows fail before the agent starts, during gateway or checkout setup, and are reported as generic failures.

Implementation scope

Add preflight retries and specific diagnostics for gateway and checkout setup, including pull-request merge refs.

Done when

  • A simulated checkout failure on a merge ref reports a pre-agent failure with the step name.
  • Gateway startup failures are retried once before failing.

Why now

Two reports share the pre-agent boundary, though the individual causes remain unconfirmed.

AW source issues and corroborating reports

#72739 #72747 #72793 #72867

No corroborating AW discussion; evidence comes from the source issues.

Unchanged AW sources close only after this summary is completed. Newer source activity and not-planned retirement do not trigger source closure. Assigned summaries are frozen; unassign to allow reclustering.

Generated by AW Essential Issue Clustering · copilot · auto · ~22 AIC · ⌖ ~1 AIC · ⊞ 8.9K · ◷

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