In the news
Getting the Source Right, Not Just the Fact: Source-Aware Verification for MCP Agents
Hugging Face · Published · 3 min read
In 30 seconds
- What happened
- ProvenanceGuard verifies that MCP agent claims are supported by the correct source tool, not just any source in the pooled evidence.
- Why it matters
- Engineers building multi-tool agents need this when source attribution matters: medical records versus research, account data versus policy documents, or any sensitive domain.
- Watch out
- System caught 138 of 139 unsupported claims but struggled to distinguish among similar sources, achieving only 50% accuracy on exact source identification in harder tests.
- agent
- mcp
The patterns behind this
Each one covers how the technique works, when it earns its cost, and where it breaks.
The Agent Architect
One pattern, one tradeoff, one production failure story. A short weekly briefing for people building agentic systems.
Weekly email, one-click unsubscribe. We only use your address to send the briefing.