The duplication tax
Let's put both integrations side by side and see the full picture. For every new data source, you repeat the same four layers of boilerplate.
Manual integration: four layers of boilerplate
Every integration requires the same four layers of glue code on top of actual logic.
In that diagram, green is actual useful logic. Amber is per-tool boilerplate (schemas, mappings). Red is copy-pasted boilerplate (dispatcher, LLM loop). For every new integration, only the green part changes. Everything else is repeated.
Ordering exercise: Manual integration checklist
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Quiz: Quiz
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This is the duplication tax. Every new data source costs you ~150 lines of boilerplate. Every schema change requires updating two places (function + schema). Every bug in the dispatcher is copy-pasted everywhere. MCP eliminates all of this. Ready to see how?
Checkpoint: Checkpoint: the pain is real
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