Attach shell process listeners before handling already-aborted tool signals so canceled runs always settle, and decode shell output as UTF-8 to preserve multibyte characters across chunk boundaries. Also lazy-load shell-specific parsers and hoist command sets so parsing work stays focused on the active shell.
Move shell tool ID checks behind shared helpers so runtime code and tests stop duplicating bash, pwsh, and powershell branches. This keeps shell-specific behavior aligned across consumers and makes follow-on shell changes less error-prone.
Make the shell exit assertions typecheck cleanly while keeping the PowerShell regression coverage. Remove the accidentally committed .opencode package-lock so generated state does not ship in the branch.
Use a multiline PowerShell trailer so native Windows commands keep their actual exit status without masking cmdlet failures, and add focused regression coverage. Remove the accidentally committed .opencode package-lock to keep generated state out of the branch.
LukeParkerDev