Getting the Source Right, Not Just the Fact: Source-Aware Verification for MCP Agents
Our latest paper, ProvenanceGuard: Source-Aware Factuality Verification for MCP-Based LLM Agents (read it on Hugging Face, or on arXiv in the meantime), targets that gap.
Key points
- The failure mode we care about is one we call cross-source conflation: a claim that is true somewhere in the evidence, but attributed to the wrong source.
- A claim can be supported by one MCP source while the answer attributes it to another.
- Source-blind scoring sees support in the pooled evidence and passes it; ProvenanceGuard separately checks whether the supporting source matches the one the answer states or implies.
- ProvenanceGuard keeps that connection between claim and source available for inspection.
Sources (1)
- [1]Getting the Source Right, Not Just the Fact: Source-Aware Verification for MCP AgentsHugging Face Blog · Sep 29, 01:07 PM
Our latest paper, ProvenanceGuard: Source-Aware Factuality Verification for MCP-Based LLM Agents (read it on Hugging Face, or on arXiv in the meantime), targets that gap.
The failure mode we care about is one we call cross-source conflation: a claim that is true somewhere in the evidence, but attributed to the wrong source.
Extractive summary: sentences quoted from the sources.