Definition
Plain language
A typed map of claims and the evidence supporting or refuting them, used so an AI coordinator can see what's still missing.
As stated in the literature
A directed acyclic graph of typed nodes (claims, evidence) and edges (supports, refutes) used as a structured, compressed representation of accumulated research in agent systems like Argus.
Also called: evidence graph
Why it matters: A structured map of evidence keeps a long-running research process honest about what's actually known versus assumed, and shows the coordinator exactly where gaps remain.
For example, a research agent investigating a drug might have nodes for 'reduces inflammation' and 'causes liver damage,' each linked to specific papers that support or refute them.
Heard on the show
“They call it the evidence DAG — directed acyclic graph — but the picture I want listeners to hold is a detective's corkboard.”Episode 051 — Why Parallel Sampling Plateaus, And What Evidence Graphs Do Instead