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How Cobrainer built graph-based agent memory on one engine

Author: Ignacio Paz An AI agent is only as useful as what it can remember - and how well it can connect the things it remembers. Most teams hand their agent a memory by reaching for a vector store: embed everything, retrieve by similarity, hope the relevant context comes back. It works, until you notice the agent keeps surfacing things that are near the question but not actually connected to it. Cobrainer , a skills-intelligence company based in Munich, took a different route. They gave their AI agent a memory that lives in the database as a graph, where the agent builds the relationships between nodes as it goes. They did it without adding a graph database, a vector engine, or a search engine to their stack. It all runs on SurrealDB, alongside a Rust-native agentic graph RAG built on the same store. Here's how, and why a single engine made the difference. The problem with flat memory Cobrainer runs a skills-intelligence platform - the kind of system that reasons about how people, roles, skills, and capabilities relate to one another. That's an inherently graph-shaped problem. But their first retrieval setup wasn't graph-shaped at all. It pulled context through flat vector retrieval over an S3-and-OpenSearch pipeline, which carried two recurring costs: Accuracy . Flat vector matches returned context that was loosely related - semantically near, but not necessarily connected in any meaningful way. The team wanted the agent to follow real relationships between entities, so its answers were grounded rather than approximate. Tokens . Broad vector matches meant stuffing a lot of marginally relevant context into every prompt - expensive, and more so with every call. The team wanted to fetch only the context that mattered. The obvious fix - adding a graph database on top of the vector and search systems they already ran - would have meant more infrastructure to operate. For a startup moving fast, that fragmentation was the thing to avoid, not embrace. What they wanted inst

2026-09-07 原文 →
AI 资讯

Introducing Scale: SurrealDB Cloud, built for high availability and scale

Author: Tobie Morgan Hitchcock Today we're launching Scale, a new tier of SurrealDB Cloud built for the workloads you can't afford to have go down. Our first tier, Start, was designed for building and shipping fast. Scale is designed for what happens next: production traffic, uptime commitments, and the kind of resilience your users never notice because there are always available nodes. It's the tier for teams running SurrealDB as the scalable context layer behind real applications and AI agents in production. What you get with Scale Scale is about one thing: keeping your database available and consistent under real-world conditions. Highly-available, fault-tolerant clusters. Scale runs your database as a multi-node cluster designed to survive node and infrastructure failures without dropping writes or losing consistency. A single point of failure is no longer a single point of downtime. Multiple availability-zone deployment. Your cluster is distributed across multiple availability zones, so even the loss of an entire zone doesn't take your database with it. Traffic keeps flowing while the cluster recovers in the background. Horizontal scale. As demand grows, Scale grows with it. Add capacity by scaling out across nodes rather than being capped by the size of a single machine. Start with three nodes, and keep adding to scale your application or agent's needs. See more information about SurrealDB Cloud Scale architecture here . Built on SurrealDS Scale is powered by SurrealDS , SurrealDB's distributed storage engine and the foundation that makes all of this possible. SurrealDS is a new generation distributed storage architecture, rethought from first principles. Instead of coupling storage to compute on a single box or to a proprietary cloud tier, SurrealDS embeds consensus directly in SurrealDB nodes and separates the two layers cleanly. Here's what that architecture gives you. Architecture overview Compute and storage separation. Scale compute for QPS and storage f

2026-07-02 原文 →