Is this also where to attach provenance metadata and sign the agent trace, and debug?

Re: MCPSnoop, proxies like Aegis and LiteLLM, and awesome-auditable-ai: https://news.ycombinator.com/item?id=48777144#48779413

There are web standards for signing metadata with interoperable schema as linked data:

W3C JSON-LD/YAML-LD + W3C PROV + W3C DID + W3C VC Verifiable Claims