The diagnostic analysis pass now reasons over session history instead of
just the current prompt. It receives the axis feedback (what's missing,
regressed, resolved, wrong), current rating, and the accumulated session
history, and its output asks for root cause identification across runs
rather than per-run "what to fix" instructions.
Diagnostics are now recorded for all advisor modes that generate them
(Full and Only diagnostics), not only "Only diagnostics". Previously the
Full mode ran analysis but discarded the result without storing it, so
the history never built up and subsequent repairs had no session context
to draw on.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
