I'm DeepSeek Harness, an open-source harness from DeepSeek built on Cordis's “everything is a plugin” architecture. Run me as a desktop app or launch the web UI from code.
\nI can help with:
\nEveryday work — Organize files, analyze data, draft docs, and create slides.Everyday work — Work with docs, data, and slides.
\nCoding — Explore repos, fix bugs, build features, and run tests.Coding — Fix bugs, build features, run tests.
\nResearch — Find information, verify facts, and cite sources.Research — Find facts and cite sources.
\nBackground tasks — Run scripts, batch-process files, and track progress.Background tasks — Run scripts and track progress.
\nPlugins — Add or build plugins to fit your workflow.Plugins — Add plugins or build your own.
\nAnd so much more...
\nDescribe what you want to build, / commands, @ files or sessions
\nWorkspace Write
\nDeepSeek-V41-Flash High
\nExpandingcapabilities. Workonyourterms.
\nEverythingisaplugin
\nInstall plugins, or create them through chat in “Creator mode”, to extend tools, skills, and the interface.
\nCreator mode
\nWrite a Pomodoro timer plugin for me.
\nWrite a Pomodoro timer plugin for me.
\nDeep diving...
\nLoad skillcordis-plugin-development
\nReadskills/cordis-plugin-development/SKILL.md
\nThinkingshell.overlay is a frame-wide floating layer — the right target for an always-on-top window.
\nInspect providers9 inspect providers
\nQuery runtimeSlots.listSubTree
\nWritedsh-plugin-pomodoro-float/package.json+35 −0
\nWritedsh-plugin-pomodoro-float/client.js+638 −0
\nTool callplugin_manager · install_bundle
\nEditdsh-plugin-pomodoro-float/client.js+5 −3
\nBashVerify live plugin state
\nTook 5m 24s
\nThe floating Pomodoro timer is built, installed, and verified.
\nOrganize documents, analyze spreadsheets, and write code. Preview the results directly and refine them through conversation.
\nBrief.docxWord document
\nData.xlsxExcel spreadsheet
\nindex.htmlHTML page
\nlabel.tsTypeScript code
\nanalyze.pyPython script
\nReport.pdfPDF document
\nREADME.mdMarkdown document
\nBrief.docxWord document
\nData.xlsxExcel spreadsheet
\nindex.htmlHTML page
\nReview · turn 1
\nsrc/label.ts+2−1
\n@@ -8,3 +8,4 @@
\n88functionlabel(name: string) {
\n9−return name;
\n9+const text = name.trim();
\n10+return text || 'Untitled';
\n1011}
\nAdapttoyourworkflow
\nEnable the Scheduled tasks plugin to start tasks anytime and run recurring work on schedule. Stay on top of progress and inspect tool call details when needed.
\nEvery Friday at 17:00 Beijing time, summarize this week's project notes in a weekly report.
\nDeep diving...Worked
\nCreate reminderSummarize this week's project notes in a weekly report.Weekly project report
\nINschedule_create
\n{\n"prompt": "Summarize this week's project notes in a weekly report.","title": "Weekly project report","weekly": {"time":"17:00:00","time_zone":"Asia/Shanghai","weekdays":[5]}}
\nWeekly project report
\nScheduled for
\nRepeat
\nWeekly on Fri at 17:00 (Asia/Shanghai)
\nStatus
\nScheduled
\nCreated “Weekly project report”, scheduled for Fridays at 17:00 Beijing time.
\nWeekly project reportWeekly on Fri at 17:00 (UTC+08:00 · China Standard Time)Open
\nDevelopertools
\nInspect execution traces and detailed runtime information to troubleshoot issues with tool calls and task execution.
\nDurationTurns⊟Calls⊟Search
\nInputModelTools
\nSYSTEMInitial System Prompt
\nTurn 1USERFirst run bash to print exactly NAVIGATION_OK, then read nav-a.md and nav-b.md with two read calls, then reply with the single word FIRST_DONE.
\nCONTEXTCurrent runtime context: workspace policy, available skills, and this turn's environment snapshot.
\nASSISTANTRun bash to confirm the output, then read both navigation files.
\nDeepSeek Harness is in preview, with evolving core plugins and APIs. We invite users and developers worldwide to explore the limits of intelligence together through open-source, reusable, and composable infrastructure.
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