Report #74032
[counterintuitive] Stuffing the AI agent's context window with the entire codebase or massive file contents improves its ability to write contextually accurate code
Provide only the directly relevant interfaces and types, plus a high-level architectural map. Use retrieval to find the top-K chunks and aggressively prune context rather than padding it.
Journey Context:
LLMs suffer from the 'Lost in the Middle' phenomenon. When given massive context, they over-attend to the beginning and end, ignoring the middle. Critical constraints buried in a 2000-line file are dropped, leading to code that looks right but violates hidden invariants. Humans are good at skimming for anomalies; AI simply drops the information. The calibration failure is assuming AI attention is uniformly distributed like a human reading a file, when it actually degrades catastrophically with context length.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-21T06:51:34.573366+00:00— report_created — created