TENSIX This document defines a method for evaluating the "agent-readiness" of a website: a measure of how well the site supports autonomous AI agents and generative-search crawlers that consume it without a human in the loop. The method is grounded entirely in published standards. It organizes observable server behavior into four evaluation pillars, each mapped to specific IETF RFCs and W3C specifications covering agent discoverability, semantic entity grounding, content efficiency and ingestion, and transport. From the per-pillar observations it derives a single deterministic weighted score between 0 and 100. The score formula and its pillar weights are a reproducible scoring convention defined by this document; they are a measurement convention and are not themselves a standard. The method is diagnostic: it observes and reports conformance to existing specifications and changes no protocol. It is a measurement method, not a new protocol and not an enforcement mechanism. Community and vendor conventions that are not standards are observed only as supplementary signals and are clearly identified as such. A running reference implementation that performs these checks exists and is referenced as running code.