@techreport{morrison-substrate-observation-01, number = {draft-morrison-substrate-observation-01}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-morrison-substrate-observation/01/}, author = {Blake Morrison}, title = {{Substrate-Observation as an Alternative to Envelope Coordination for Concurrent Sessions}}, pagetotal = 14, year = 2026, month = jul, day = 5, abstract = {This memo articulates a coordination-protocol anti-pattern observed in cross-tool agentic systems and describes a substrate-observation alternative that does not require negotiating a wire format between heterogeneous concurrent sessions of an identity-bound principal. The memo is Informational. No protocol element is being proposed for standardisation; the contribution is the opposite, a delineation of what should NOT be standardised, and why, with a reference to the substrate-physics primitives that take its place. Companion memos in the morrison-* family describe the identity primitives this memo presumes; specifically, this memo relies on the \textasciitilde{}handle namespace established in {[}IDPRONOUNS{]} and the per-principal identity substrate referenced in {[}IDACCORD{]}.}, }