This report describes work carried out during the DBCLS BioHackathon 2026 (BH26) in Matsuyama, Japan, on three loosely related but complementary threads, all concerned with moving genome annotation data across the boundary between the systems that produce it and the systems that consume it. First, gene annotations of the liverwort Marchantiapolymorpha, maintained in MarpolBase, were converted to RDF: an RDF structure was designed, a converter from GFF3 was written, and the resulting graph was loaded into Virtuoso and deployed to a production endpoint. Second, a prototype agent for preparing submissions to the DNA Data Bank of Japan (DDBJ), provisionally called DFAST-Agent, was assembled from a Model Context Protocol (MCP) server and a set of skills; submission files were successfully produced through an interactive terminal session, including operations on files held in Kura, DDBJ’s authenticated object storage. Third, Markit, a tool for registering phylogenetic marker sequences, gained a webinterface that was deployed to a staging environment, alongside fixes to its command-line counterpart. Taken together, these threads probe the same question from two sides: how to make annotation data machine-actionable once it has been published, and how to lower the cost of publishing it in the first place.