The compact pane is prompt-only because the feed above shows the context.
An error is the exception: the feed cannot show it. A tool_result only
reaches us with the next request, which a turn that died never sends, and
an `API Error` row is Claude Code's own text, never in the stream at all.
So the frame walks further up to take the report in, and the scheduled
ctrl-l wipe is cancelled while one is framed — Ink redraws only the live
frame, so wiping would delete the error 400ms after it appeared.
Detection is text shape, not colour: the tool error renders palette 211
and the API error 220, both theme values. ERROR_SCAN is the only bound,
which is what makes it self-limiting — the error drifts out of the window
as the next turn prints output and the pane shrinks back on its own.
Three streams of data were being lost or mangled in the feed.
WebSearch is not purely client-side: it issues a nested /v1/messages that
declares Anthropic's hosted web_search under the parent session id and with
no agent-id header. Read as a turn start it pushed a fake user prompt,
clobbered the main lane's system/tools signatures and downgraded a [1m]
session to the short window on the next resume. Requests are now classified
three ways (Turn / ServerTool / Side) from the tools array shape alone, and a
nested call gets its own lane, readable only in the A popup. Its result and
citations arrive complete in the stream and are echoed back in no later
request body, so they are attached as the stream delivers them.
An Agent call returns its tool_result immediately ("async agent launched"),
so the real completion is a <task-notification> injected into the parent's
next user turn. Those are lifted out of the prompt: the report moves onto the
Agent entry it answers, the usage totals onto the lane, and the status
becomes one glyph-led note line. A finished agent used to keep reading as
running.
Tool output we do not control carries SGR codes. A self-contained parser maps
them to styles instead of leaving [1m as literal text; filled blocks keep
their own colours and take only the attributes.
Also: a non-2xx upstream response now surfaces as an error entry instead of a
silent stall, tool renderers cover the file/shell/task/prompt/web families,
and the fake upstream answers the nested hosted-tool request so both search
paths run offline.
