What is Concordance Engine?
Concordance Engine is a Python validation engine and MCP server that checks decision packets and computational claims against fixed external authorities (conserved laws, proven mathematics, pre‑registered statistical methods) rather than polling internal consensus. It implements O(1) validation, halting at the first gate failure, and never self‑confirms. Designed for AI systems, researchers, and governance workflows.
How to use Concordance Engine?
Install with pip install -e ".[mcp]" then run concordance-mcp to start the MCP server. Configure in Claude Desktop or add via claude mcp add. Alternatively, use the CLI: concordance validate <packet.json>. MCP tools return {"status":"ERROR",…} on bad input, making them safe inside LLM tool loops.
Key features of Concordance Engine
- O(1) external authority validation (replaces O(n²) consensus).
- Eleven computational verifiers (chemistry, physics, math, statistics, CS, biology, governance).
- Four‑gate pipeline (RED, FLOOR, BROTHERS, GOD) with deterministic halting.
- Safe for LLM loops: tools never raise exceptions.
- MCP integration with Claude Desktop and Claude Code.
- CLI with summary/verbose/json output.
Use cases of Concordance Engine
- Validate governance decision packets for structural completeness and witness consistency.
- Verify chemistry equation balance, physics dimensional analysis, and conservation laws.
- Recompute p‑values and multiple‑comparison corrections from raw statistical inputs.
- Check computer‑science code for termination, functional correctness, and runtime complexity.
- Enforce biological experiment validity (replicates, dose‑response, power analysis).
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