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Dynamic Memory Layer Boosts Claude Code Task Success Rate by 22 Points in Benchmark

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A developer ran a controlled benchmark testing whether a retrieval-based memory system called RE-call could improve Claude Code's ability to complete real coding tasks in temporary repositories. Unlike a previous experiment that checked answer correctness, this test used deterministic checkers to verify whether the repository ended up in the right state after each task. Across 72 paired comparisons covering 24 tasks and three random seeds, RE-call achieved a 58.3% success rate, compared to 36.1% for a static CLAUDE.md instruction file and 50% for bare Claude Code. The static CLAUDE.md file actually underperformed the no-memory baseline by 13.9 percentage points, suggesting that fixed instruction files can introduce noise rather than useful context. RE-call's advantage was most pronounced on memory-sensitive tasks, where it outperformed CLAUDE.md by 45.8 percentage points, indicating that on-demand retrieval of project history is more effective than loading all context upfront.

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Dynamic Memory Layer Boosts Claude Code Task Success Rate by 22 Points in Benchmark · ShortSingh