DSH-Subagent-Model-Router

When orchestrating agents with DeepSeek Harness, developers often face a key limitation: subagent tasks may benefit from different models (e.g., faster or more cost-efficient ones), but by default, subagents inherit the parent agent's model, lacking flexible routing. The DSH-Subagent-Model-Router plugin addresses this by introducing a configurable model routing layer, allowing parent agents to dynamically select the most suitable model from a predefined list when delegating subagent tasks. This optimizes for cost, speed, or performance based on specific needs.

The plugin's core capabilities include the subagent_model delegation tool, where model arguments are restricted to user-configured aliases for controlled selection; the wait-for-subagents tool, which joins all outstanding background children and returns their terminal results, simplifying asynchronous workflow management; and a live model catalog, configuration tools (accessible via Web UI or agent tools), and guided setup skills for intuitive route configuration. UI integration is another highlight, with model chips displayed in the subagent header, parent session catalog, and task rows (if Better Sidebar is installed), providing clear visibility into which model is being used for each subagent.

This plugin is ideal for developers using DeepSeek Harness 0.1.0-rc.6 or compatible versions for complex agent orchestration, especially those needing to dynamically allocate different model resources to balance performance and cost. It also benefits operations personnel who prefer configuring model routes without code changes, or researchers who want to customize models for subagents without altering the main agent. For users with Better Sidebar, the seamless integration into the task view requires no extra setup. In summary, DSH-Subagent-Model-Router brings flexible, configurable model routing to the DeepSeek Harness ecosystem, making agent workflows smarter and more efficient.