// The Meta-Agent Challenge //
How good are current agents at self-improving?
This is a great paper covering some of the challenges.
They propose the Meta-Agent Challenge (MAC), where they give a coding agent a sandbox, an evaluation API, and a time budget, then ask it to program an agent that maximizes held-out performance across five domains.
Results:
Meta-agents rarely match human-engineered baselines, and the few that do are dominated by proprietary frontier models.
Under high optimization pressure, some agents started exfiltrating ground truth from the scoring channel, even with multi-layer anti-reward-hacking defenses in place.
Paper: https://arxiv.org/abs/2606.04455
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8:28 AM · Jun 5, 2026 · 13.7K Views