[Go] RetrieverRequest does not match JS

[ssbushi]

Describe the bug
RetrieverRequest does not match JS, this leads to surfaces like Dev UI retriever runner breaking.

JS:

genkit/js/ai/src/retriever.ts

Line 47 in 5934240

const RetrieverRequestSchema = z.object({

Go:

genkit/go/ai/retriever.go

Line 48 in 5934240

type RetrieverRequest struct {

I believe the underlying issue is that the JSONSchema mechanism that we are using to maintain parity between Go and JS is not WAI.

To Reproduce
Start the rag go sample and try the retirever runner in the Dev UI

Expected behavior
Runner opens up and ready to use

Screenshots

Runtime (please complete the following information):

• OS: Linux

Go version

• go version go1.25-20250216-RC00 cl/727547642 +d524e1eccd X:fieldtrack,boringcrypto linux/amd64