raphaelchristi/harness-evolver

Automated harness evolution for AI agents. A Claude Code plugin that iteratively optimizes system prompts, routing, retrieval, and orchestration code using full-trace counterfactual diagnosis. Based on Meta-Harness (Lee et al., 2026).

48Stars on the repository
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4mo agoLast push, which is what freshness is scored on
MITLicence, which decides whether bodies are shown

harness-evolver

02

raphaelchristi/harness-evolver

Plugin Claude Code

LangSmith-native autonomous agent optimization — evolves LLM agent code using multi-agent proposers, LangSmith experiments, and git worktrees.

48 4mo ago A tokens not measured original MIT