Extensibility: Custom tools and plug-ins Dify: has a powerful custom tool creation system.

Developers can build complex tools using a Python Tool base class, which provides helper methods for returning multiple types of messages (text, images, links, binary data) and access to a "variable pool" to share state between tools.

Dify also supports importing tools via the OpenAPI/Swagger standard, which is a huge advantage for integrating with existing APIs.

In addition, the entire workflow can also be published as a tool for other workflows to call.

Coze: Its scalability is mainly achieved through plug-ins.

A plug-in is a collection of tools (API).

Coze provides an IDE for creating plugins and supports importing from JSON/YAML files (presumably the OpenAPI/Swagger specification).

The platform also has a large number of pre-built plug-ins built into it.

Comparison: Both platforms have strong and comparable capabilities for creating custom tools/plugins.

Dify's clear and documented support for the OpenAPI/Swagger standard is a clear, practical advantage for enterprise-level integration.

Dify's "variable pool" concept is used to implement stateful tool interaction within the workflow, which is a quite ingenious design.

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