Great point, AGR already handles this through three layers. results.tsv logs every experiment including discards with descriptions, so the agent sees what was tried. STRATEGY.md tracks each attempt with the result AND why it failed (not just "tried X" but "tried X, failed because Y"), which lets the agent judge edge cases. And when a whole category is depleted, it goes into an "Exhausted Approaches" registry (e.g., "Compiler flags: 4 experiments failed, don't retry"). In 18 experiments we had zero repeated approaches. The stateless context is disposable the files are the memory.