ProvenanceGuard: Source-Aware Factuality Verification for MCP-Based LLM Agents

arXiv:2606.18037 · cs.AI, cs.CL, cs.MA · Submitted 2026-06-16 · Read on arXiv

cs.AI, cs.CL, cs.MA

Submitted: 2026-06-16

Updated: 2026-08-27

Code: https://github.com/modelcontextprotocol/modelcontextprotocol

Terminology

• Trace — 91× in this paper · explained in 2 episodes
• Verifier — 57× in this paper · explained in 2 episodes
• Accuracy — 51× in this paper · explained in 1 episode
• Benchmark — 40× in this paper · explained in 2 episodes
• Verification — 34× in this paper · explained in 2 episodes
• Calibration — 26× in this paper · explained in 7 episodes
• Provenance — 22× in this paper · explained in 4 episodes
• Alignment — 16× in this paper · explained in 1 episode
• Consistency — 10× in this paper · explained in 3 episodes
• RAG — 5× in this paper · explained in 3 episodes
• Core — 4× in this paper · explained in 2 episodes
• Model Context Protocol — 4× in this paper
• Model Context Protocol (MCP) — 4× in this paper · explained in 8 episodes
• Embeddings — 3× in this paper · explained in 2 episodes
• Ablation — 2× in this paper · explained in 1 episode
• Cosine Similarity — 2× in this paper · explained in 3 episodes
• Empirical Methods in Natural Language Processing — 2× in this paper
• Generalization — 2× in this paper · explained in 13 episodes
• Grounding — 2× in this paper · explained in 3 episodes
• Pruning — 2× in this paper · explained in 4 episodes
• Ablation Studies — 1× in this paper · explained in 1 episode
• Abstraction — 1× in this paper · explained in 1 episode
• Agent Core — 1× in this paper · explained in 2 episodes
• Benchmarking — 1× in this paper · explained in 4 episodes
• Clustering — 1× in this paper · explained in 2 episodes
• Conformal Prediction — 1× in this paper · explained in 5 episodes
• Distribution Shift — 1× in this paper · explained in 6 episodes
• Failure Modes — 1× in this paper · explained in 3 episodes
• Reinforcement Learning — 1× in this paper · explained in 4 episodes
• Robustness — 1× in this paper · explained in 5 episodes
• Tokenization — 1× in this paper · explained in 2 episodes

Sources

• Attributed Question Answering: Evaluation and Modeling for Attributed Large Language Models
• Atomic Information Flow: A Network Flow Model for Tool Attributions in RAG Systems

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