Composable agent harness where everything is a plugin
DeepSeek Harness is an open-source agent runtime where models, tools, prompts, storage, the agent loop, and even the UI are plugins. You compose profiles and agent presets, run programmatic tool calling, and keep a full event log for recovery and replay.
DeepSeek Harness launched on Product Hunt on 2026-08-14 and has 155 upvotes and 3 comments so far.
This tool is open source.