Infrastructure as Extension — IaE — for Symphony Conductor.

Status: Accepted

Date: 2025-08-12

Authors: Symphony Architecture Team

Summary

We will implement Symphony's Conductor infrastructure (Pool Management, DAG Tracking, Artifact Storage, Arbitration, and Stale Management) as extensions rather than built-in components.

Context

Symphony's Conductor requires several infrastructure services:

• 🏊 Pool Manager: Worker pool allocation and lifecycle management
• 📊 DAG Tracker: Workflow dependency tracking and state management
• 📦 Artifact Store: Intermediate result storage and retrieval
• ⚖️ Arbitration Manager: Resource conflict resolution
• 🧹 Stale Manager: Cleanup and garbage collection

Key Requirements:

• 10,000+ workflow executions/hour with sub-second response times
• Platform strategy: Position Symphony as extensible platform
• Business model: Extension marketplace and premium positioning
• Technical stack: Rust-based implementation