dsh-hebrew-rtl

The DeepSeek Harness web GUI renders every content block left-to-right by default. For Hebrew this produces three distinct failures: paragraphs start on the wrong edge, text typed into input fields flows the wrong direction, and Cmd+arrow shortcuts jump the caret to the visually opposite side. The obvious CSS fix, unicode-bidi: plaintext, inspects only the first strong directional character, so a Hebrew sentence that opens with a URL, a list number, or an emoji still renders garbled.

dsh-hebrew-rtl evaluates direction per block. Each paragraph, heading, list, and table has its Hebrew-majority and Latin-majority word counts compared after stripping code-like tokens such as URLs, SHAs, and paths. Tables, lists, and KaTeX formulas are judged as a whole rather than cell by cell. Input fields use a two-layer mirror stack with identical Bidi metrics so computed heights and wrapping stay consistent. Cmd+left and Cmd+right are swapped only when the caret sits on an RTL line, and Shift-extension is preserved. Streaming text is re-evaluated through a MutationObserver coalesced with requestAnimationFrame to avoid a rescan per character.

The plugin is purely client-side, requires no configuration, no network access, and no host service, and is deliberately scoped to Hebrew. It is intended for developers who read, write, or debug Hebrew content inside the DeepSeek Harness web interface.