DSH terminal client

Key features

• Use published DeepSeek Harness packages as the source of truth for agent behavior, state, and lifecycle.
• Streaming conversations with durable sessions, resume, turn rewind, retry, compact, and Markdown export
• DeepSeek Harness provides the runtime foundation, plugin architecture, and the conviction that agent capabilities should be composable rather than embedded in one application.
• New capabilities belong in Cordis plugins, services, providers, consumers, or app composition instead of a growing monolithic TUI.
• One owner for each concern.