ProvenanceGuard: provenance-aware fact checking for MCP agents
Getting the Source Right, Not Just the Fact: Source-Aware Verification for MCP Agents
What happened
Hugging Face has published the ProvenanceGuard paper, describing a post-generation verification layer for MCP agents that preserves the identity of tool-output sources and detects cross-source confusion—claims that are true but attributed to the wrong source. On 281 real medical-agent traces, it blocked 138 of 139 claims experts said should be blocked, achieved about 86% source-identification accuracy, and scored highest among four comparison checkers.
Hugging FaceAgentsSafety and alignmentMCP and tool usePapers and research#Research#MCP and tool calling#Safety and alignment#Agent#Hugging Face
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