- ConPTY (windows) + pty (unix) expect-like harness: spawn a built punkshell on a size-controlled pseudo-terminal, send keys incl control/arrow sequences, await patterns in the rendered ANSI byte stream with timeouts and forced teardown, full transcript capture
- the durable byte-accurate tier of the repl verification model recorded in goals/G-044 detail: pure layer (commandcomplete.test, done), console-seam unit tier (G-001 as enabling refactor), rendered tiers (G-020 screen capture near-term windows bridge; this goal headless + cross-platform)
- first verification targets = preserve-list behaviours: the in-proc {set x "{*}{"} continuation-hint sequence, raw-mode tab-marker rendering/deletion, up-arrow recall + edit of a multiline history entry
- detail file records open implementation questions (driving ConPTY from tcl: twapi surface vs helper exe; harness/shell synchronisation incl the inter-subshell beep-protocol idea vs prompt sentinels) and the G-059 WSL / G-060 QEMU-guest execution extensions
Assisted-by: harness=claude; primary-model=claude-fable-5; api-location=anthropic.com
Julian Noble