MCP Workflow - Writing servers that run durable tool orchestrations

[P0u4a]

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One of the main problems I came across while connecting my MCP servers to clients is that often times you have a set of tools you want to run in sequence. For example, before you can call a book_flight tool you need to call a search_available_flights tool. You can enforce this ordering somewhat by including instructions in the tool description, but there's no order guarantee from the client.

So I built mcp-workflow, which extends the typescript sdk and exposes a few new classes that let you build workflows around your tools, guaranteeing the call order that you define. It also comes with a few other features like persistent storage for intermediate tool responses and some rudimentary branching capabilities to steer the client in the right direction.

Feedback and contributions are welcome!

Relevant Links

https://github.com/P0u4a/mcp-workflow