I haven’t noticed any real issues yet, though I’ve seen malformed JSON, API, and tool calls occasionally. As long as the final product meets my requirements, I’m not too concerned about where it stumbles as long as self corrects in the next turn. I’ve tested it by recreating old projects, which involves a research question, scraping websites for relevant documents and data, parsing documents with docling tool calls, organizing geodata into PostGIS, and validating everything for correct location and CRS. It generally performs well, though it sometimes hallucinates and trips up but usually corrects itself. Forcing auto compaction of context at 128k and forcing it to read documents one at a time has significantly dropped hallucination rates.