# DeltaTrace: Deterministic Replayable Latency & Compliance Tracing

DeltaTrace is a production-oriented MVP crafted to enable end-to-end traceability, deterministic replay of order lifecycles, and governance-ready audit trails for live market-execution pipelines operating across partitioned networks.

Core capabilities
- Event-graph model: capture MDTick, signals, PlanDelta decisions, orders, fills, and risk-check results as nodes with precise timestamps.
- Deterministic replay engine: replay a captured delta-stream and event log to reproduce a specific decision path in a sandbox.
- Governance-led audit log: crypto-signed triggers, approvals, and tamper-evident logs.
- Lightweight adapters: starter adapters for FIX feed and exchange gateway sandbox.
- Privacy posture: data-minimization and sanitization options for compliance needs.

MVP Scope (8–12 weeks)
- Phase 0: core event-graph schema, deterministic replay engine, two adapters.
- Phase 1: governance ledger scaffold and privacy controls.
- Phase 2: partitioned-network testbed with a sandbox exchange.
- Phase 3: incident replay dashboard and governance reporting.

Build & testing
- Use test.sh to run unit tests and packaging checks (python3 -m build).
- The repository is structured to enable safe collaboration with a small, production-like core and pluggable adapters.

Note: This is an MVP aimed at validating the interoperability, replay fidelity, and auditability of live-market pipelines, independent of vendor ecosystems.

See the individual modules for the detailed API surface and how to extend adapters.

Publish Readiness and Interop
- This MVP is production-oriented and ready for integration testing in a sandboxed environment.
- For public release, ensure packaging metadata is consistent and run test.sh (unit tests + packaging) locally.
- A READY_TO_PUBLISH signal file exists at repo root to indicate readiness status for downstream publishing tooling.
- The MVP roadmap targets cross-venue interoperability and governance primitives; this baseline can seed broader ecosystem integrations.
- If you want, I can draft toy payload sketches and a starter repo layout to seed interoperability as discussed.