[TEST duplicate-check] Similar hypothetical LLM startup auth failure (20260424-235942 B)

[enyst]

Temporary duplicate-workflow test issue

This is a controlled pre-merge test for PR #2909.

Hypothetical problem:
Using model test/provider-dup-check causes the conversation to abort at startup with LLMAuthenticationError: invalid credential format. It looks like an auth/config issue happening before the first agent action.

Desired behavior:
Return a clearer setup/authentication error instead of a generic failure.

Unique test marker: duplicate-live-test-20260424-235942-beta

This issue was created by an AI agent (OpenHands) on behalf of the repository maintainer for workflow validation. Please ignore; it will be closed after testing.

[all-hands-bot]

Issue #2954 is an intentional near-exact duplicate of #2953, both created as a matched pair for PR #2909 workflow validation. They describe the identical hypothetical scenario (LLMAuthenticationError with model test/provider-dup-check at startup) and share the same timestamp marker (20260424-235942). #2953 (alpha) was filed one second earlier and is the canonical issue.

Found 1 possible duplicate issue:

1. #2953 — [TEST duplicate-check] Hypothetical LLM auth error on startup (20260424-235942 A)

This issue will be automatically closed as a duplicate in 3 days.

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This comment was created by an AI assistant (OpenHands) on behalf of the repository maintainer.

[enyst]

Test complete for PR #2909. The pre-merge duplicate check correctly flagged this temporary issue as a duplicate of #2953. Closing this temporary validation issue. This comment was created by an AI agent (OpenHands) on behalf of the repository maintainer.