User note recorded: with per-subshell configs (G-008/G-009), piping
`subshell <name>` then going interactive should reasonably land IN that
subshell (quit unwinding to the initial shell). Does not fall out of the
continuity changes automatically - the subshell stack is repl control flow
and unwinds at pipe-EOF under the current nested model. Options recorded:
re-enter captured subshell stack on restart (fights nesting) vs the natural
fit under G-002 non-nested subshells with console targeting (reattach
reopened console to innermost active subshell). Also noted: a -subshell
flag on the shell subcommand as the primary entry (G-032 launcher-args
candidate).
Assisted-by: harness=claude; primary-model=claude-fable-5; api-location=anthropic.com
User identified the general least-surprise violation beyond the original
error-retention draft: `'set ::jjj blah' | punkexe` reaches an interactive
prompt where ::jjj does not exist - the piped-EOF restart silently swaps in
a fresh codethread/code interp, discarding variables, procs, packages, cwd
and errorInfo. Goal reworked to session continuity via the caller-driven
restart identified during G-036 (repl::start eof-restart done-mode without
codethread teardown; app-punkshell restarts on the reopened console without
repl::init). Error inspectability becomes an acceptance criterion that
likely falls out free (no re-init means no boot-noise re-stamping of
errorInfo); the standalone error-record mechanism is demoted to a recorded
fallback. Detail file renamed to match (slug change, ID preserved).
Assisted-by: harness=claude; primary-model=claude-fable-5; api-location=anthropic.com
Julian Noble