The routing and parser-selection fixes touch every provider surface, and
the unit tests only prove each side of a seam in isolation. Two suites
close that:
The provider matrix drives one request per wire shape over a single tunnel,
with a record per catalog surface behind it, and asserts the surface each
request was metered under together with the token counts that surface's own
usage block carries. A response read by the wrong provider's parser meters
zero, so a regression fails instead of passing on a coincidental non-zero.
It also covers the Bedrock and Vertex token-counting paths, the warm-up
probe, and the vendor error envelope on a refusal.
The discovery suite covers the configuration that broke: an account with a
model allowlist, where the listing carries no model and the gate failed
closed. It asserts the listing is served, that it is bounded to the
authorised model, and that inference outside the allowlist is still
refused, so the exemption cannot be read as a way around the gate.
The mock upstream grows the Anthropic, Bedrock and token-counting shapes so
one container stands in for every surface, and the client gains GET and
arbitrary-POST helpers for the endpoints that carry no chat body.
Store the per-account gateway endpoint as {domain, proxy_address} with a
global unique index on the full hostname; dedicated = (domain ==
proxy_address). Bootstrap becomes an explicit POST carrying exactly one
of proxy_address (server allocates an adjective-noun label beneath it)
or endpoint (claimed verbatim, address-first); provider create loses its
bootstrap side effect. PUT is a full replace with every field required —
the immutable identity fields must be echoed unchanged and a mismatch is
rejected with 422. A guarded DELETE releases the endpoint: refused with
412 while providers exist or a proxy is actively serving the endpoint
hostname (matched case-insensitively); re-creating bootstraps fresh. A
self-addressed pin excludes its address from the account's cluster allow
list, and the live mapping update path now addresses the serving proxy
from the synthesized service. Existing rows are migrated on all three
store engines.
