AI agent infrastructure 2

PostgreSQL platform for hybrid AI agent memory and retrieval Polygres is an all-in-one PostgreSQL platform for AI agents that combines relational data, graph traversal, vector search, and hybrid retrieval through a unified API. It turns existing PostgreSQL databases into working memory for agents, allowing them to retrieve structured rows, connected relationships, semantic matches, full-text results, and filtered context without using a separate vector database, graph database, or synchronization pipeline. Polygres includes pgGraph for foreign-key-based graph traversal and pgContext for fused retrieval across dense HNSW vectors, sparse search, full-text search, filtering, recommendations, discovery, grouped results, and lookups. Users can deploy it as a managed cloud database or self-host its open-source components.

Versioned filesystem for persistent, collaborative AI agent workspaces Mesa is a versioned filesystem and virtual filesystem platform built for AI agents. It allows agents to access persistent files, create isolated branches, run parallel agent swarms, track changes, request human approvals, and roll back work through one API. Mesa supports POSIX-compatible filesystem access, large files, shared memories, documents, code, datasets, models, and media. It provides sub-50ms reads and writes through MesaFS, instant workspace forks, strong consistency, fine-grained access controls, and enterprise deployment options.