1 safe output(s) failed: - create_issue: ERR_API: [2026-04-19T11:54:09.463Z] create_issue in github/copilot-sdk-java failed (attempt 1) Original error: Validation Failed: {"message":"assignees copilot-swe-agent cannot be assigned to this issue","value":["copilot-swe-agent"],"resource":"Issue","field":"assignees","code":"invalid"} - https://docs.github.com/rest/issues/issues#create-an-issue Retryable: false Suggestion: This error cannot be resolved by retrying. Please check the error details and fix the underlying issue.

✗ Message 1 (create_issue) failed: ERR_API: [2026-04-19T11:54:09.463Z] create_issue in github/copilot-sdk-java failed (attempt 1) Original error: Validation Failed: {"message":"assignees copilot-swe-agent cannot be assigned to this issue","value":["copilot-swe-agent"],"resource":"Issue","field":"assignees","code":"invalid"} - https://docs.github.com/rest/issues/issues#create-an-issue Retryable: false Suggestion: This error cannot be resolved by retrying. Please check the error details and fix the underlying issue.

✗ Failed to create issue "[reference-impl-sync] Reference Implementation sync: 41 new commits (2026-04-19)" in github/copilot-sdk-java: ERR_API: [2026-04-19T11:54:09.463Z] create_issue in github/copilot-sdk-java failed (attempt 1) Original error: Validation Failed: {"message":"assignees copilot-swe-agent cannot be assigned to this issue","value":["copilot-swe-agent"],"resource":"Issue","field":"assignees","code":"invalid"} - https://docs.github.com/rest/issues/issues#create-an-issue Retryable: false Suggestion: This error cannot be resolved by retrying. Please check the error details and fix the underlying issue.

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1 message(s) failed to process

⏸ Message 2 (assign_to_agent) still deferred - some temporary IDs remain unresolved