The ConPTY host flattens LaunchSpec.Args into one Windows command line and quotes
each token, so a list working dir stored as "C:\repo\" produced the token
"C:\repo\" -- whose trailing backslash escapes its own closing quote. Everything
after it collapsed into --add-dir's variadic list, including
--append-system-prompt-file and the positional kickoff, so "Let Claude handle it"
opened a session with no prompt at all and the CLI warned that brief.md is not a
directory. Only user-supplied working dirs can carry a trailing separator; the
session dirs the worker builds never do.
mika kuns
4a7b00ed53