Effect-TS/effect @effect/ai-openai@0.34.0

on GitHub

Minor Changes

• #5621 4c3bdfb Thanks @IMax153! - Remove Either / EitherEncoded from tool call results.

  Specifically, the encoding of tool call results as an Either / EitherEncoded has been removed and is replaced by encoding the tool call success / failure directly into the result property.

  To allow type-safe discrimination between a tool call result which was a success vs. one that was a failure, an isFailure property has also been added to the "tool-result" part. If isFailure is true, then the tool call handler result was an error.

  import * as AnthropicClient from "@effect/ai-anthropic/AnthropicClient"
  import * as AnthropicLanguageModel from "@effect/ai-anthropic/AnthropicLanguageModel"
  import * as LanguageModel from "@effect/ai/LanguageModel"
  import * as Tool from "@effect/ai/Tool"
  import * as Toolkit from "@effect/ai/Toolkit"
  import * as NodeHttpClient from "@effect/platform-node/NodeHttpClient"
  import { Config, Effect, Layer, Schema, Stream } from "effect"
  
  const Claude = AnthropicLanguageModel.model("claude-4-sonnet-20250514")
  
  const MyTool = Tool.make("MyTool", {
    description: "An example of a tool with success and failure types",
    failureMode: "return", // Return errors in the response
    parameters: { bar: Schema.Number },
    success: Schema.Number,
    failure: Schema.Struct({ reason: Schema.Literal("reason-1", "reason-2") })
  })
  
  const MyToolkit = Toolkit.make(MyTool)
  
  const MyToolkitLayer = MyToolkit.toLayer({
    MyTool: () => Effect.succeed(42)
  })
  
  const program = LanguageModel.streamText({
    prompt: "Tell me about the meaning of life",
    toolkit: MyToolkit
  }).pipe(
    Stream.runForEach((part) => {
      if (part.type === "tool-result" && part.name === "MyTool") {
        // The `isFailure` property can be used to discriminate whether the result
        // of a tool call is a success or a failure
        if (part.isFailure) {
          part.result
          //   ^? { readonly reason: "reason-1" | "reason-2"; }
        } else {
          part.result
          //   ^? number
        }
      }
      return Effect.void
    }),
    Effect.provide(Claude)
  )
  
  const Anthropic = AnthropicClient.layerConfig({
    apiKey: Config.redacted("ANTHROPIC_API_KEY")
  }).pipe(Layer.provide(NodeHttpClient.layerUndici))
  
  program.pipe(Effect.provide([Anthropic, MyToolkitLayer]), Effect.runPromise)

Patch Changes

• Updated dependencies [4c3bdfb]:
  • @effect/ai@0.31.0