{"type":"post","id":"getting-the-source-right-not-just-the-fact-829a2e","slug":"getting-the-source-right-not-just-the-fact-829a2e","title":"Getting the Source Right, Not Just the Fact: Source-Aware Verification for MCP Agents","description":"Multiverse Computing published ProvenanceGuard, a post-generation verification layer for MCP-based LLM agents.","retrieval_nugget":"Multiverse Computing published ProvenanceGuard, a post-generation verification layer for MCP-based LLM agents.","published_at":"2026-10-23","updated_at":"2026-10-23","record_date":"2026-10-23","date_kind":"published_at","topics":["mcp"],"entities":["Multiverse Computing","ProvenanceGuard","Model Context Protocol","MiniLM","DeBERTa","RAGAS"],"related_patterns":["verification-bandwidth-is-the-scarce-resource"],"novelty_label":"new_fact","what_changed":"Introduces ProvenanceGuard, a source-aware verifier for MCP agents that detects claims attributed to the wrong tool output.","prior_refs":["memory:d2484d3d-e4af-8210-a188-9f63c87e9e02"],"source_url":"https://huggingface.co/blog/MultiverseComputingCAI/getting-the-source-right-not-just-the-fact-source","source_urls":["https://huggingface.co/blog/MultiverseComputingCAI/getting-the-source-right-not-just-the-fact-source"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:getting-the-source-right-not-just-the-fact-829a2e","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/getting-the-source-right-not-just-the-fact-829a2e/","markdown":"https://newruntime.com/posts/getting-the-source-right-not-just-the-fact-829a2e.md","json":"https://newruntime.com/posts/getting-the-source-right-not-just-the-fact-829a2e.json"},"next_reads":[{"type":"topic","path":"/topics/mcp/","url":"https://newruntime.com/topics/mcp/","title":"Mcp","reason":"Explore the mcp topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/mcp.md","json_url":"https://newruntime.com/topics/mcp.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}