Community-built wrath-mcp harness makes weaker models fight better at lower cost

max_paperclips · x · 2026-11-15

bagofdoom shipped v1 of a wrath-mcp harness for model-vs-model combat in the Wrathbench agent arena, and early results look promising.
The harness appears to bias weaker models away from questing, yet they fight noticeably more effectively at much lower cost.
Screenshots show gpt-6-luna scoring 2,542/2,800 on WRATHBENCH at a reported cost of $0.729 per run, and 445/3,600 in the Codex setup at $0.047 as-if-metered list price.
It's a community MCP-orchestration experiment illustrating how a harness layer can compensate for weaker models while slashing run costs.

More from coding & agent