User verified tclsh90spr 2026-07-20: interactive sessions normal with and
without TCLSH_PIPEREPL=0 (closes the G-096 matrix's residual user-level
check), and basic punk features work on the bare pr shell via repo tm
paths (raw mode twapi-reliant). Via './tclsh90spr src/make.tcl shell' the
powershell console-mode fallback engaged and raw mode worked - modulo
consolemode_server_async.ps1 noise and an early server shutdown.
New G-106 captures the requested direction: maintain the fallback as a
dependable raw-mode path for twapi-less runtimes (suite shells/kits),
hardening the known weak points recorded at creation - argv0-derived
pstooldir resolution (works for make.tcl shell by construction, little
else; kits need G-089 scriptlib delivery), server early-shutdown +
startup noise, and the unmarked experiment variants beside the canonical
script in scriptlib/utils/pwsh. Priority rises if G-103's zig-built twapi
investigation proves impractical - cross-noted there.
Assisted-by: harness=claude; primary-model=claude-fable-5; api-location=anthropic.com
Julian Noble