Provider: OpenAI (gpt-4o / o1)
Suite: 11-task core suite (atomic coding tasks)
Configuration: autoroute_first=true, single_file_fast_path=false
Run Variant Token Delta (per call) Step Savings (vs Baseline) Task Success
Baseline (2026-03-13) -18.62% — 11/11
Hardened A +8.07% — 11/11
Enhanced (2026-03-27) -6.73% +27.78% 11/11
Key Takeaways: The ROI of Precision: While the "Enhanced" run used roughly 6.73% more tokens than the baseline per request, it required 27.78% fewer steps to reach a successful solution.
Deterministic Accuracy: By feeding the LLM a "Logical Skeleton" rather than fuzzy similarity-search chunks, we eliminate the "lost in the middle" effect. The agent understands the consequences of an edit before it writes a single line.
Context Density: We are effectively trading cheap input tokens for expensive developer time and agent compute cycles.
Detailed breakdowns of the task suite and methodology are available in docs/AB_TEST_DEV_RESULTS.md.