What is MCP (Model Context Protocol)?
Researched: 2026-03-05
This guide is updated regularly. Sources are listed under “References & evidence.”
MCP is an open protocol for connecting LLM applications to tools and resources via standardized messages.
Why it matters for process automation
- It makes tool access composable (multiple tools, consistent interface).
- It makes boundaries explicit (roots, transports, capability negotiation).
- It enables more reproducible context than ad-hoc prompt wiring.
But: MCP alone is not governance. Enterprises still need workflow gates, approvals, and evidence artifacts during execution.
Enterprise pattern: MCP tools + workflow gates
Use MCP for tool surfaces, and use workflows for the operating model:
- MCP: what tools exist and how to call them.
- Workflow gates: when it’s allowed, who must approve, and what evidence must be produced.
- Evidence artifacts: structured proof objects (approval_record, exception_record, version_log).
The safest path to agentic automation
Treat MCP as the integration layer and workflows as the operating layer. That’s how you get both power and enterprise control.
References & evidence
Researched: 2026-03-05
- MCP specification: https://spec.modelcontextprotocol.io/specification/2025-03-26/
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