We're not replacing deterministic processes with probabilistic ones, that would be insane for production data.

Here's what actually happens:

1. MCP exposes system schemas in a standardized way 2. AI analyzes the schemas and suggests mappings 3. Engineers review and validate every mapping 4. AI generates deterministic integration code (think: writing the SQL, not running it) 5. We test with real data before any production deployment

So you've not replaced ETL with MCP, you're just using LLMs to generate SQL.