Why Multi-Vendor
Enterprise reality: Salesforce Agentforce handles sales. Microsoft Copilot Studio handles employee productivity. A custom agent handles domain-specific logic. All need to coordinate. Agent Fabric is the control plane.
Discovery
Expanded agent and MCP server discovery. Registry answers ‘what agents and tools exist in my stack’. Metadata on capabilities, cost, policy boundaries. No more tribal knowledge of which agent does what.
Deterministic Orchestration
Some workflows demand guaranteed ordering. LLM-driven coordination is probabilistic; Fabric’s deterministic primitives give enterprise-grade guarantees. Use deterministic for compliance-sensitive flows, LLM-coordinated elsewhere.
LLM Governance
Central policy: which LLMs which agents can use, rate limits, cost budgets, data boundaries. A red-team-discovered data leak on one agent gets the whole vendor throttled through Fabric. Enterprise control surface.