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VEX

Witness Log

VEX Witness pillarexecution provenancetool call record

The Witness Log is the VEX Protocol's execution record — a tamper-evident log preserving what crossed the execution boundary during governed agentic actions.

THE ACCOUNTABILITY GAP WITHOUT WITNESS LOGS

AI agents without structured logging produce outcomes without a verifiable decision chain. Post-incident investigation is reduced to speculation. Witness logs provide a verifiable reconstruction.

PROTOCOL CONTEXT (VEX — WITNESS PILLAR)

The Witness pillar preserves a tamper-evident record of governed execution events. The log captures what crossed the boundary, when it occurred, and the resulting state.

ProvnAI Mitigation

McpVanguard can generate structured execution logs and optional receipt_v1 JSONL records for routed activity. VEX-integrated deployments can anchor selected governed actions to tamper-evident structures for later review.