A trace is one walked path and "target" is pure UX (hardware-verified),
so the feature now splits along that line: Trace target keeps the
symmetric mirror-and-return flow (picker, Explore paths), while the new
Trace path skips the picker entirely and walks a hand-composed route —
no Auto, no Explore, Trace gated until a path exists, history recorded
under the "(path)" sentinel so composed walks never pollute the target
picker. The composer loses its mode toggle: a pinned target means
mirrored, no target means verbatim, and its preview opens as us → us.
Sampling returns, deliberately: a Sample count action (1/2/3/5/8) runs
that many traces per commit, paced by trace_cooldown_s between sends and
counted off on the in-flight dialog — never a burst. Actions reorder to
compose/explore/width/samples/trace with a Back row; the w/p/x hotkeys
retire.
Display: route nodes drop the underscore (prompt_toolkit draws U+00A0 as
"_", so name (hash) now joins with plain spaces), the composer renders
nodes exactly like the route line, the (previous · …) stamp gets its own
line, the path row ends with the displayed hop count, Explore rows lead
with the route instead of an "observed path" label, and the empty Traces
placeholder is gone.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>