Code mode
Several calls in one round trip.
https://mcp.atelier201.com/mcp/code exposes two tools, search and
execute, instead of one per capability.
search runs a model-written filter over the OpenAPI document and returns the
operations that matched. execute runs a model-written script whose
request() goes through the SAME route matching, scope check and handler an
HTTP call does. There is no second authorization surface.
Why it exists: a change that needs five calls costs five round trips and five tool-result payloads in the model’s context. Code mode makes it one.
When not to use it: if the agent makes one call, the standard tools are simpler and their descriptions are better.