On the control node agents are to run as an account that cannot become root
(hq ADR 0266). The runtime keeps running as the operator, so the token, the
identity and the home-scope items go to the agent's home through a helper
started as that account; the licence and the account file follow the move,
what was placed in the operator's home goes once the agent holds the licence,
and the guard refuses every tool of a session running as anyone else,
recording to the journal. An API key is taken only from the agent's home and
only when it is one, here and in the licence manager, so the tool cannot carry
off the runtime's credential. Unchanged where no agent account is named.
The module is one Go binary the runtime launches: the renderer (its
instruction file held byte for byte to the TypeScript one it replaces),
the credentials and identity files, the licence flow of ADR 0206 and the
MCP servers in state. Keeps the TypeScript module's key files, so a node
moving to it keeps its key. The npm package, its tests and its build go.
Both binaries were run together under the real runtime on a test bus with
postgres and a stub vendor: a login was adopted by one exchange, the node
bound and handed an access token, its file left with no refresh token, and
no token in either state.