ConKurrence
Multi-model rating for AI evaluation: measures agreement among model raters (Fleiss' κ, Kendall's W) to find contested items for expert review.
What agreement tells you: where your raters and your criteria are consistent, and where they are not — which items are contested, and whether disagreement comes from the criteria or the raters.
What it does not tell you: that the raters are right. Agreement is reliability, not validity. Models can agree confidently on a wrong answer. Use ConKurrence to decide where an expert's judgment is needed and to diagnose your evaluation criteria — not to replace expert-labelled ground truth.
Status: maintenance mode. ConKurrence is developed by JE Vectors LLC as the evaluation instrument behind Inqura. It is not accepting purchases and carries no support commitment.
Install
npm install -g conkurrence
MCP Server
Use ConKurrence as an MCP server in Claude Desktop or any MCP-compatible client:
Claude Desktop Configuration
Add to your claude_desktop_config.json:
{
"mcpServers": {
"conkurrence": {
"command": "npx",
"args": ["-y", "conkurrence", "mcp"]
}
}
}
Claude Code Plugin
/plugin marketplace add AlligatorC0der/conkurrence
Features
- Multi-model evaluation — Run your schema against Bedrock, OpenAI, and Gemini models simultaneously
- Agreement statistics — Fleiss' kappa with bootstrap confidence intervals; Kendall's W against expert-labelled anchor items
- Self-consistency mode — No API keys needed; uses the host model via MCP Sampling
- Schema suggestion — AI-powered schema design from your data
- Trend tracking — Compare runs over time, detect agreement degradation
- Cost estimation — Know the cost before running
| Tool | Description |
|---|
conkurrence_run | Execute an evaluation across multiple AI raters |
conkurrence_report | Generate a detailed markdown report |
conkurrence_compare | Side-by-side comparison of two runs |
conkurrence_trend | Track agreement over multiple runs |
conkurrence_suggest | AI-powered schema suggestion from your data |
conkurrence_validate_schema | Validate a schema before running |
conkurrence_estimate | Estimate cost and token usage |
Links
License
BUSL-1.1 — Business Source License 1.1