DeepSeek Open-Sources Harness Framework Cordis with 'Everything is a Plugin' Design
teortaxesTex · x · 2026-08-14
Alongside open-sourcing Harness, DeepSeek has published the design paper for its underlying framework, Cordis. The framework's most radical design is "Everything is a plugin": model adapters, tool registration, session logs, and even the Agent Loop driving tool calls are all replaceable components, leaving no fixed core.
Cordis splits this dynamic management into two dimensions:
- Temporal composability: Tracks side effects to reclaim resources when a plugin is uninstalled.
- Spatial composability: Manages dependencies and automatically adjusts lifecycles when dependencies change.
This design directly connects to recursive self-improvement. Instead of modifying model weights directly, AI can improve by modifying prompts, tools, workflows, and the Agent Loop. Currently, Harness's creation mode allows the Agent to inspect the environment and temporarily define, load, and unload components at runtime, meaning the Agent can modify its own harness rather than just calling tools.
Related event: DeepSeek Open Sources Plugin-Based Agent Framework Harness v0.1(36 posts)→
More from coding & agent
- A Playable 3D Boat Game Embedded in an X Post, Built by Claude Opus — prasenx · 2026-10-09
- ProximalHQ's training setup lifts Qwen3.8-27B to 37.2% Pass@1 on DeepSWE, up 8.4 points — aryaman2020 · 2026-10-09
- edith-1 monitors agent traces, beats Sonnet-5.5 on balanced accuracy at 1/274 the cost — xennygrimmato_ · 2026-10-09
- How edith-1 works: probabilistic filter plus expensive agent judge for flagged runs — xennygrimmato_ · 2026-10-09
- Solari launches agent infrastructure: 8ms browsers, 10x faster than Browserbase — Scobleizer · 2026-10-09
- Monetizing proprietary data through MCP: pay-per-call pricing for agents — ValosSantanos · 2026-10-09