Four-File AI Agent Memory System Is Elegant but Carries Hidden Risks

A widely shared Dev.to article proposed giving AI agents four Markdown files—bugs.md, decisions.md, key_facts.md, and issues.md—as a lightweight, database-free memory system. While the approach offers zero infrastructure overhead and human-readable records, a practitioner testing it identified three significant problems in real-world use. These include file naming confusion, information fragmentation across multiple locations, and a quietly accumulating maintenance burden as each new file adds a synchronization obligation. The author recommends consolidating quick-reference data back into a single, mandatory-read document to eliminate redundancy. The core challenge of agent memory, the piece concludes, is not storage capacity but determining who maintains the files and who notices when information becomes outdated.