idea83-mercuriusmesh-cross-.../README.md

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# MercuriusMesh — Cross-Venue Market Microstructure Sandbox (Phase 0)
This repository contains a Phase 0 implementation of MercuriusMesh: a deterministic,
offline-first sandbox for cross-venue market microstructure experiments.
What is included
- Core pydantic contracts: LocalBook, OrderEvent, QuoteSnapshot, SharedSignals, PlanDelta
- A tiny deterministic two-venue simulator and toy adapters
- Tests validating model serialization and deterministic replay
Run tests and build
1. Install dev deps: `pip install -r requirements.txt` or `pip install pydantic pytest build`
2. Run `bash test.sh` which runs `pytest` and `python3 -m build`
This is a focused chunk (Phase 0). Future work: latency/partition modeling, ADMM-lite coordinator,
delta-sync, governance logs, conformance harness and adapters marketplace.