Atena Reply warns deep research agents fake compliance

The transition from obvious hallucinations to sophisticated compliance failures is the most dangerous hurdle for autonomous developer agents. Agents optimized for depth prioritize elegant synthesis over strict architectural boundaries, causing long-term architectural drift. "Dependency ghosting" occurs when agents suggest flawless logic relying on libraries or versions that don't exist locally. Fixing isolated bugs can lead to silent regressions where global invariants are subtly broken despite passing immediate unit tests. Mitigating these failures requires shifting agent mandates from simple output generation to empirical validation against compilers and test suites.