dsh-git-seam

Running git through bash is common enough, but bash offers no guarantee. The model may skip diff and commit blindly; porcelain output gets mangled by Chinese paths, spaces, or CRLF; and the approval screen shows a command string rather than an actual file-change list.

dsh-git-seam wraps six git tools (status, diff, log, show, branch, commit) into a structured interface and enforces a review gate at the tools/pre-execute layer: a commit is refused unless a successful git_diff in the same turn covers exactly the files the commit would include, with unreviewed files named explicitly. Every porcelain parse is deterministic (LC_ALL=C, core.quotepath=false, --porcelain=v1 -z), so Chinese filenames, BOM-prefixed UTF-8, renames, and CRLF are handled by code rather than model luck. The approval plan lists per-file +N/-M stats and flags new files, making approve or deny calls concrete.

Best for developers who use dsh agents for everyday git work and want commit discipline enforced by mechanism rather than system prompts, and especially for teams juggling Chinese project names and UTF-8 content across Windows and Linux.