dsh-better-edit

dsh-better-edit is designed for long, multi-step file-editing sessions in DeepSeek Harness. It addresses the failure modes of line-number or string-replacement editing: a single insertion can shift every later line number, models may have to repeat old code, and unverified ranges can silently land in the wrong place. Instead, it uses content hashes as line anchors, so edits are addressed by what the agent actually saw rather than by fragile positions.

The plugin provides hashline-style reading and editing: read returns each line with a hash anchor, edit targets hash ranges, and every range is checked against served rows before any write. Stale or unseen ranges are rejected and re-served with fresh anchors for retry, while ASCII-whitespace-insensitive anchors tolerate common formatters. With support for chained edits and atomic same-file batches, it is best suited for developers and coding agents doing structural refactors, repeated edits, or long sessions where an edit must not land on the wrong line; it offers less benefit for one-line touch-ups or brand-new files.