LSP action surface for DeepSeek Harness: diagnostics, formatting, completion, code actions, symbols, signature help, inlay hints, and rename tools over language servers, plus the editor action protocol (lsp.actions.*) that makes the plugin the IDE integration backend
Review agent-produced file changes (line-level red/green diff + undo) both as a chat turn-tail row and as a dsh-better-sidebar tab; a port of left0ver's dsh-file-review.
Academic Research Skills (ARS) for DeepSeek Harness: 4 research/writing/review skills (deep-research, academic-paper, academic-paper-reviewer, academic-pipeline) plus 16 /ars-* commands, ported from the ARS Claude Code plugin (upstream: Imbad0202/academic-research-skills, CC-BY-NC-4.0).
DeepSeek Harness plugin: configurable vision model with vision_read_image tool, composer-bar vision-model selector, and automatic image-to-text conversion for text-only main models.
Import pi / opencode sessions, chat history, and agents into DeepSeek Harness (dsh): slash commands, session-start migration prompt, and a one-click Sync button in the composer.