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eval-harness
Behavior-regression testing for LLM agents. 4-class attribution, 6-field FAIL schema, $-cost gating, flaky detection. Bash + jq. Works with opencode today, runner-pluggable.
4stars
2forks
Shell
agent-testingai-agentsanthropicbashci-cdclaudedeveloper-toolsevalllm-evaluationllm-testingllmopsopencode
Quality signals
ActiveNo testsNo CIThin docsNo licenseNew
Install
Universal installANY TOOL
$ npx skillcity@latest nano-step/eval-harnessAuto-detects the skill or MCP server in this repo and installs it for Claude Code, Codex, Cursor, Cline, OpenCode, Gemini CLI, Anti-Gravity, OpenClaw and Hermes.
Requires Node.js 18+ (ships with npx).
Prefer to set it up by hand? Clone the repository:
git clone https://github.com/nano-step/eval-harness.git
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Ask a simulated agent to run this skill. It loads the real SKILL.md and reasons over your task with NVIDIA.
eval-harness — sandboxAI sandbox
Pick a quick prompt below or type your own — watch the agent execute this skill step by step.
guest@skillcity:~$Try a prompt