receipts before trust

self.md radar — 2026-07-12 agent trust had a paperwork day: the good stuff was not a smarter demo, it was a receipt, a scorecard, and a signed boundary. start with the Grok Build teardown, because that is the one with teeth. then the MCP server index turns tool trust into something procurement can actually reject. the wildcard is tiny but interesting: a personal-agent spec that treats mandates and…