Function NewDynamicTool

codersdk/chats.go:1642–1673

NewDynamicTool creates a DynamicTool with a typed handler. The JSON schema is derived from T using invopop/jsonschema. The handler receives deserialized args and the DynamicToolCall metadata.

(
	name, description string,
	handler func(ctx context.Context, args T, call DynamicToolCall) (DynamicToolResponse, error),
)

// The JSON schema is derived from T using invopop/jsonschema.
// The handler receives deserialized args and the DynamicToolCall metadata.
func NewDynamicTool[T any](
	name, description string,
	handler func(ctx context.Context, args T, call DynamicToolCall) (DynamicToolResponse, error),
) DynamicTool {
	reflector := jsonschema.Reflector{
		DoNotReference:            true,
		Anonymous:                 true,
		AllowAdditionalProperties: true,
	}
	schema := reflector.Reflect(new(T))
	schema.Version = ""
	schemaJSON, err := json.Marshal(schema)
	if err != nil {
		panic(fmt.Sprintf("codersdk: failed to marshal schema for %q: %v", name, err))
	}

	return DynamicTool{
		Name:        name,
		Description: description,
		InputSchema: schemaJSON,
		Handler: func(ctx context.Context, call DynamicToolCall) (DynamicToolResponse, error) {
			var parsed T
			if err := json.Unmarshal([]byte(call.Args), &parsed); err != nil {
				return DynamicToolResponse{
					Content: fmt.Sprintf("invalid parameters: %s", err),
					IsError: true,
				}, nil
			}
			return handler(ctx, parsed, call)
		},
	}
}

// ChatWatchEventKind represents the kind of event in the chat watch stream.
type ChatWatchEventKind string