AgentAdmissionRejected now extends HarnessError with the fixed code
AGENT_ADMISSION_REJECTED. The Session Remote recognizes a refusal by that
code and imports only agent-controller types, so its mapping also holds for
an error from another copy of the module; its literals are typed by the
agent-controller constants, so a changed value fails the build.
Master's async activation makes AgentRegistry inject sessionProjections and
makes createSessionTestRemote async. Install SessionProjectionRegistry in the
agent-controller and prompt-admission harnesses and await the test Remote in
the image admission tests.
The Agent controller now finishes disposal only after every delivery it
stopped has settled, and a sender that cancels stops waiting at once, also
while its message waits behind a held one; the message keeps its place and
is dropped at its turn.
An image prompt takes the Session's image admission turn when its
preparation starts, in the Agent's delivery order, and keeps it until the
prompt settles. Image and text prompts therefore enter the inbox in arrival
order, and a model selection waits only for the image prompt being
admitted, not for one still queued.
The core page documents the delivery types, and the architecture overview
lists the controller and its admission event.
Add @deepseek-ai/dsh-agent-controller, composed in the base bundle, as the
entry through which a sender delivers a message from outside an Agent into
its inbox. deliver() runs the sender's content preparation in the Agent's
delivery order, asks the agent-controller/admission waterfall for a
decision, rechecks cancellation and registration, and appends the message
with followup() or steer(). dsh-agent and agent-loop are unchanged.
The Web session/prompt Remote delivers through it: the image model check,
upload receipt resolution, and attachment storage run as prepare, the
receipt binding runs as beforeInsert, and refusals map to
session/prompt-rejected. The Web client keeps its existing echo.
This replaces the Host half of deepseek-harness/deepseek-harness#6178,
whose admission stage lived in dsh-agent.
Yichen Jiang