Recover from invalid model output You let Ax validate fields and retry with specific correction feedback. Your app can still distinguish generation errors, provider failures, and cancellation. go academy academy/topics/structured-validation-errors website/content-src/academy/course.mjs academy Recover from invalid model output
ax
Go github.com/ax-llm/ax/packages/go
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Unit 3 · Build a reliable AI-powered feature

Recover from invalid model output

You let Ax validate fields and retry with specific correction feedback. Your app can still distinguish generation errors, provider failures, and cancellation.

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Unit example (nearest native match)

See the idea in context

answer := axllm.NewAx("question:string -> answer:string", nil)
  1. Run the program normally

    Most valid responses return through the usual typed path.

  2. Catch the specific failure

    AxGenerateError identifies a generation or validation failure you can report deliberately.

  3. Preserve useful details

    error.details gives logs and UI a concrete repair target.

Run itIn your own project
go get github.com/ax-llm/ax/packages/go

import axllm "github.com/ax-llm/ax/packages/go"

client := axllm.NewAI("openai", map[string]axllm.Value{"apiKey": os.Getenv("OPENAI_API_KEY")})
classify := axllm.NewAx("review:string -> sentiment:class \"positive, negative, neutral\"", nil)

Set OPENAI_APIKEY in your environment before running provider-backed code.

In the ax repo

From a clone of the ax repo:

npm run example -- go src/examples/go/generation/basic_generation.go
Active practice

Show that you can use it

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