HarnessX · Darwin-Agent
A research-grade 'harness foundry' (MIT, v0.1.0 beta, arXiv paper 2606.14249) that composes agent harnesses from typed reusable processors across seven categories (context, control, evaluation, memory, multi-model, observability, tools) and evolves them via the AEGIS trace-driven engine, reporting an average +14.5% gain across ALFWorld, GAIA, WebShop, tau^3-Bench, and SWE-bench Verified without touching model weights.
Identity
| Homepage | https://github.com/Darwin-Agent/HarnessX |
|---|---|
| Repository | https://github.com/Darwin-Agent/HarnessX |
| License | open-source |
| Domain | research |
| Form factor | sdk |
Model support
| Model-agnostic | ✓ yes |
|---|---|
| Native models | — |
| Local models | ? unknown |
| Pricing | byok |
Extensibility
| MCP client | ? unknown |
|---|---|
| Agent Skills support | ? unknown |
| Plugins / hooks | ✓ yes |
Execution & safety
| Sandboxing | optional |
|---|---|
| Autonomy spectrum | semi-autonomous → autonomous-local |
| Subagents | ? unknown |
| Parallel sessions | ? unknown |
| Context management | compaction · persistent-memory |
Integration & evidence
| Headless / API | ✓ yes |
|---|---|
| GitHub integration | ? unknown |
| Sources |
✓ profile last verified 2026-07-08 · benchmark figures are vendor-reported unless a source states otherwise