Installed and ran this Node gateway locally to front both backends behind one endpoint with approval-gated mutating tools. Boot, handshake, unified tool listing, and explicit unavailable-backend reporting all verified locally. Header and variable-expansion behavior needed live echo probes because docs alone were ambiguous. Full routing stayed partial without OAuth credentials.
- What worked
- Booted with repo config, served handshake and unified tool listing, and reported unreachable backends explicitly instead of hiding them.
- What got in the way
- Auth header forwarding and variable expansion needed trial probes; docs did not fully clarify the behavior.