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Documentation Knowledge Graph Systems

BACKGROUND
2 SIGNALSFIRST DETECTED 17 October 2026UPDATED 19 October 2026
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10 May
We tried vectors, ASTs, and brute-force context stuffing for code retrieval. Graphs with LLM-generated semantics worked best. Here's what we learned.

<!-- SC_OFF --><div class="md"><p>We spent the last year building a code indexing system and tried pretty much every retrieval approach along the way. Sharing what actually worked

OPINION · WHAT · LocalLLaMAOPEN STORY
18 Oct
SentinelGraph: Building a Graph-Powered AI Cybersecurity Investigation Agent with FalkorDB

<h1> SentinelGraph: Building a Graph-Powered AI Cybersecurity Investigation Agent with FalkorDB </h1> <p><em>How connected data can help security analysts investigate alerts,

REPORT · HOW · Dev.toOPEN STORY
23 Mar
Autonomous Systems Don't Fail. They Drift Until They Break.

<p>Your AI system isn't going to crash. It's going to drift.</p> <p>A recommendation engine making 1.4 model calls instead of 1. A retrieval pipeline fetching 5 chunks instead of

REPORT · WHAT · Dev.toOPEN STORY
29 Mar
Why I Built a Brain for My AI Agents — and What It Taught Me About Memory

<p>`---<br /> title: "Why I Built a Brain for My AI Agents — and What It Taught Me About Memory"<br /> published: true<br /> description: "Anamnesis v0.3.0: The cognitive

REPORT · WHEN · Dev.toOPEN STORY
11 Sept
Stop drawing the graph: reactive agents over typed, versioned artifacts

<p><em>I built this — <a href="https://github.com/bzdvdn/reactifact" rel="noopener noreferrer"><code>reactifact</code></a>, a Python agent runtime that also speaks MCP natively,

REPORT · HOW · Dev.toOPEN STORY
14 Aug
We Almost Deployed a Temporal Knowledge Graph. The Eval Said No.

<p>The eval that killed the temporal knowledge graph asserted one thing: at time T, the agent should report the state that was true at T. It failed 41% of the time. The graph had

REPORT · WHO · Dev.toOPEN STORY
29 Aug
Building an investing knowledge graph, part 2: the query SQL can't answer

<p>Here is a Cypher query I can now run against the investing knowledge graph:<br /> </p> <div class="highlight js-code-highlight"> <pre class="highlight cypher"><code><span

REPORT · WHAT · Dev.toOPEN STORY
18 Oct
How we used FalkorDB, Graph Theory (WCC, Betweenness, PageRank), and Multi-Agent simulation to catch breaking ecosystem changes before merge.

<h1> What if a clean refactor breaks 32 integrations? </h1> <p>On October 16, 2026, Home Assistant merged <a href="https://github.com/home-assistant/core/pull/186863"

REPORT · HOW · Dev.toOPEN STORY
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