Composer
The Composer (Nexus Composer) orchestrates end-to-end trade execution without holding user funds, serving as the intelligent coordination layer for all protocol operations.
System-Wide Coordination
Core Responsibilities:
Intent Processing
Receive and validate trading requests from users
Ensures valid, executable trade parameters
Liquidity Aggregation
Query all available nodes for current pricing and depth
Enables optimal routing across multiple sources
Route Optimization
Calculate best execution path considering price, slippage, and fees
Delivers superior execution quality
PSBT Orchestration
Construct and coordinate multi-party transaction signing
Enables atomic, trustless settlement
Operational Excellence
Performance Standards:
Response Time: Sub-100ms intent processing for standard trading requests
Availability: 99.9% uptime with automatic failover and redundancy systems
Scalability: Support for 10,000+ concurrent users with linear infrastructure scaling
Security: Comprehensive monitoring and audit logging for all operations
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