v0.3.1

Bug fixes

• An MSYS- or WSL-form workdir no longer fails as a missing shell. An absolute workdir was handed to spawn as the child's cwd unchanged: node:path calls both MSYS /d/WorkSpace and the WSL automount view /mnt/d/WorkSpace absolute, but Windows resolves them against the current drive (G:\d\WorkSpace), so the spawn failed and reported ENOENT against the executable — bash.exe / wsl.exe — which reads as a missing shell rather than an unusable directory. Both forms are now translated to the native D:\WorkSpace before the executor sees them. Only a single-letter first segment (optionally under /mnt/) whose drive exists qualifies, so MSYS POSIX roots (/etc, /usr, /tmp, /dev) and distro-side paths such as /mnt/data keep their own meaning, and a relative workdir still resolves against the session workspace. toNativeWorkdir is exported for the audit.

Improvements

• Tool descriptions track the dsh 0.2.0 skeleton. tool-bash and tool-pwsh each gained two sentences upstream; git_bash / wsl_bash now carry the bash-family wording — verify the resolved absolute target path before any delete or move, and guard a computed path against an unset variable with ${VAR:?}. They deliberately do not adopt pwsh's $HOME sentence: in bash $HOME is an ordinary assignable variable.
• The exit-status prompt section now states the gating rule. Alongside the [exit code: N] instruction, each tool row tells the model to chain dependent steps with && or set -o pipefail, because ; never stops on failure and cmd | tail returns tail's status rather than the command's. It stays in the prompt rather than the per-call schema (cross-call guidance), and the runtime's own tail truncation is the reason not to bound output with a pipe. The text lives in the exported SHELL_EXIT_STATUS_SECTION so the audit can pin it.

Verification

Verified on dsh 0.2.0-rc.2; the peer floors stay at >=0.1.7-rc.2, which that release satisfies, so 0.1.7 deployments are unaffected.

• npm test (smoke/run.ps1): git_bash, wsl_bash and the base bundle's own pwsh seat each executed a real command (git-bash-ok / wsl-ok / pwsh-ok) with shellSeatPresent: true, in both the schema-default and pinned-bashPath variants.
• smoke/audit.ps1: 140 assertions, 0 failures. Nine of them are the new regression guards, and they do fail on the previous code: six unit assertions over the drive-form translation plus three boot assertions that run a real command through an MSYS-form and a WSL-automount workdir.