The bus module on the bus node runs from what its agent holds (its own composition, or the declaration kept before the
switch: every novox have read 2026-11-02 names its own composition or none, and nats names a build alone), while
composed-<node> was written by the controller, which ended (issue 1126). The follower now looks at the agent's record
of what runs whenever it changed, writes again only when the file it names moved, and trusts no composition signer.
Claude-Session: https://claude.ai/code/session_01NcbgfJ9Gum47zkFKWRaovL
jschoubben
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