Files
deepseek-harness/apps/web/tests/snapshots/math-rendering/ui.expected.md
Yichen Jiang bb43ff4f37 feat(ui): make a session that cannot send refuse to accept one
A default naming a route the Models page has since removed left the
composer saying 选择模型 while the input still accepted a message, which
then failed inside the adapter mid-turn.

`session.prompt` now refuses with `model-unavailable` before opening a
turn. That is the enforcement boundary: the method stays callable no
matter what a client disables. `session.models` reports the same fact as
`routable`, and ui-model pushes a block through the new
`ctx.conversation.blocks` registry so the bar renders the disabled
textarea it already renders without a workspace, carrying the blocker's
own reason. The push direction is forced — ui-model already depends on
ui-conversation, so ui-conversation cannot read it back.

The gate is `routable`, not "matches no advertised group": catalog
membership is advisory, so a route serving a model it stopped advertising
is missing from the groups yet perfectly usable, and `null` before the
first load never blocks so a slow Host cannot lock a working composer.

The scaffold gains a route-only adapter for fixture-less keyless
scenarios. Registering zero providers is a test artifact — every product
composition mounts one — and the goldens that froze the seat's fallback
label now show the model those scenarios actually route to.
2026-08-07 15:26:42 +08:00

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- banner:
- navigation "Session hierarchy":
- button "Math rendering" [disabled]
- tablist:
- tab "Chat" [selected]
- tab "Trajectory"
- text: Render this mathematical proof. {{clock}}
- button "Copy":
- img
- heading "Math rendering" [level=2]
- paragraph:
- text: Inline dollar
- math: θ
- text: and backslash
- math: 1 5
- text: .
- math: π 4 < θ < π 2
- math: θ ∈ ( π 4 , π 2 ) . (1)
- table:
- rowgroup:
- row "Symbol Value":
- columnheader "Symbol"
- columnheader "Value"
- rowgroup:
- row:
- cell:
- math: θ
- cell:
- math: 1 5
- paragraph: MATH_RENDERING_DONE
- button "Copy":
- img
- button "Branch into a new conversation":
- img
- text: {{clock}} Ran for {{duration}}
- textbox "Message the agent"
- button "Commands":
- img
- 'button "Access mode, current: Workspace Write"': Workspace Write
- button "Select model, current DeepSeek-V4-Flash":
- text: DeepSeek-V4-Flash
- img
- button "Send message" [disabled]
- text: 1 turns · 1 steps LLM {{duration}} Input 0 tok · Output 0 tok