freqtrade/docs/PHASE_P40.md

Phase P40: Codebase Hardening & Audit Grade Documentation

1. Objective

Achieve "Audit Grade" status for live trading readiness, focusing on:

• Fail-Closed Readiness Checks (Deadman Switch).
• Strict Idempotency (Client Order IDs).
• Persistent Risk Halts (Capital Protection).
• Operational Hardening (No Secrets, No Open Ports).

2. Changes Implemented

2.1 Codebase

• Readiness: LiveReadiness module ensures environment health before every live order.
• Idempotency: OrderIdempotency module persists request hashes to prevent duplicate submissions.
• Risk: RiskGuard now persists halt states to disk, surviving process restarts.
• Gates: P39 (Ops Hygiene), P21 (Secrets), P40 (Live Readiness).

2.2 Documentation

• Audit Review: docs/third_party_review_outside_freqtrade.md provides a comprehensive system overview for external auditors.
• Runbook: Updated docs/OPS_RUNBOOK.md with Safe Mode procedures.

3. Verification

• Gate P40: Validates proper fail-closed behavior for Deadman switch.
• Soak Logs: health.json metrics track system stability.
• Acceptance Suite: All gates automated via scripts/accept_all.sh.

4. Next Steps

• External Audit Review.
• Production Deployment (Phase P41).