deepseek-harness/examples/tui-agent

tui-agent

The full-screen interactive coding agent: DeepSeek V4, local bash and filesystem tools, compaction, subagents, workflows, todo_write, timeout/spill policy, and @deepseek-ai/dsh-tui-demo.

Run it

pnpm run demo:tui

The command needs DEEPSEEK_API_KEY in the environment or gitignored repository-root .env. Set RESUME_SESSION_ID to reopen a persisted conversation under ./.sessions.

The TUI renders Markdown history, reasoning, tool-owned terminal/diff/generic cards, token totals, and the latest todo list. Enter submits or steers while the agent runs; Ctrl+O expands cards, Ctrl+R toggles reasoning, Escape cancels, and /help lists commands. ask_user_question opens a keyboard-driven overlay.

Run pnpm run demo:code-mode tui for the Code Mode overlay.

Composition

cordis.yml owns the interactive coding composition directly. code-mode.cordis.yml includes that leaf and replaces the tool presentation mode while adding the code runtime. Non-interactive automation uses the sibling headless-agent composition.

Snapshot tests

tests/snapshots/<scenario>/session.jsonl supplies recorded user prompts and model chunks; sibling child logs drive subagents and workflows. The keyless suite executes those scripts through the real loop and tools, then compares readable terminal cell/style output. Use pnpm run test:snapshot:refresh for presentation-only changes and pnpm run test:snapshot:record with a DeepSeek key when a recorded model journey changes. The implemented TUI snapshot Agent Note owns the scenario matrix.