Address and header plumbing for serving artifacts and frames through the agent proxy exists but is unused.
New /v1/code/agent-proxy routes for frames and artifacts, an asset-token header and an artifact_mount constant, none of it reachable.
What's wrong with this entry?
New address builders under /v1/code/agent-proxy for /frame and /artifact, a request-header helper carrying an asset token in x-frame-asset-token, and a new artifact_mount constant. Nothing in this build is visible in the product yet.
- No flag guards these helpers; they are new plumbing rather than a switchable feature.
x-frame-asset-token
Strings lifted out of the shipped bundle, so the claim above can be checked against them.