· case vii / viii — assurance
in build · mmxxvi
selvage.dev
The transaction boundary for agentic web actions.
The brief
Verifies approved terms, revalidates them before execution, and allows or blocks the commit at the provider boundary — each decision leaves an inspectable record of what was approved, attempted, and executed.
webmcp-first · cross-model · in-path enforcement · evidence receipts
the research behind it · 2026
Before the Provider Call: Enforcing Exact-Term Authorization for State-Changing Tool Actions
The Agentic Transaction Assurance work. Where the Beyond Content series reads long-form interaction as structure, this turns to the moment an agent acts: enforcing the exact terms a user approved before a state-changing tool call reaches the provider.
read on zenodo → case notes →