[WIP] [eval] Resolve direct assignment trigger without mention

[Codex]

Thanks for assigning this issue to me. I'm starting to work on it and will keep this PR's description up to date as I form a plan and make progress.

Original prompt

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This section details on the original issue you should resolve

<issue_title>[eval] Direct assignment trigger without mention (1773764130159)</issue_title>
<issue_description>Automated eval case: direct-assignment-no-mention

Task:
You are assigned directly. Start working this issue and post run status.</issue_description>

Comments on the Issue (you are @codex[agent] in this section)

• Fixes [eval] Direct assignment trigger without mention (1773764130159) #515