diff --git a/packages/http-client-csharp/emitter/src/code-model-writer.ts b/packages/http-client-csharp/emitter/src/code-model-writer.ts
index e60360c32b5..f8b26674d2c 100644
--- a/packages/http-client-csharp/emitter/src/code-model-writer.ts
+++ b/packages/http-client-csharp/emitter/src/code-model-writer.ts
@@ -4,9 +4,9 @@
 import { UsageFlags } from "@azure-tools/typespec-client-generator-core";
 import { resolvePath } from "@typespec/compiler";
 import { configurationFileName, tspOutputFileName } from "./constants.js";
-import { CSharpEmitterContext } from "./sdk-context.js";
-import { CodeModel } from "./type/code-model.js";
-import { Configuration } from "./type/configuration.js";
+import type { CSharpEmitterContext } from "./sdk-context.js";
+import type { CodeModel } from "./type/code-model.js";
+import type { Configuration } from "./type/configuration.js";
 
 /**
  * Serializes the code model to a JSON string with reference tracking.
diff --git a/packages/http-client-csharp/emitter/src/emit-generate.browser.ts b/packages/http-client-csharp/emitter/src/emit-generate.browser.ts
index cb557a2ba6d..4b7006d6900 100644
--- a/packages/http-client-csharp/emitter/src/emit-generate.browser.ts
+++ b/packages/http-client-csharp/emitter/src/emit-generate.browser.ts
@@ -5,7 +5,7 @@
 
 import { resolvePath } from "@typespec/compiler";
 import type { GenerateOptions } from "./emit-generate.js";
-import { CSharpEmitterContext } from "./sdk-context.js";
+import type { CSharpEmitterContext } from "./sdk-context.js";
 
 const SERVER_URL = "https://csharp-playground-server.azurewebsites.net";
 const MAX_RESPONSE_SIZE = 10 * 1024 * 1024; // 10 MB
diff --git a/packages/http-client-csharp/emitter/src/emit-generate.ts b/packages/http-client-csharp/emitter/src/emit-generate.ts
index a6421ca8906..44109e00ed8 100644
--- a/packages/http-client-csharp/emitter/src/emit-generate.ts
+++ b/packages/http-client-csharp/emitter/src/emit-generate.ts
@@ -3,9 +3,9 @@
 
 // Node.js implementation: runs the .NET generator locally via subprocess.
 
+import type { Diagnostic } from "@typespec/compiler";
 import {
   createDiagnosticCollector,
-  Diagnostic,
   getDirectoryPath,
   joinPaths,
   NoTarget,
@@ -21,7 +21,7 @@ import {
 } from "./constants.js";
 import { execAsync, execCSharpGenerator } from "./lib/exec-utils.js";
 import { createDiagnostic } from "./lib/lib.js";
-import { CSharpEmitterContext } from "./sdk-context.js";
+import type { CSharpEmitterContext } from "./sdk-context.js";
 
 export interface GenerateOptions {
   outputFolder: string;
diff --git a/packages/http-client-csharp/emitter/src/emitter.ts b/packages/http-client-csharp/emitter/src/emitter.ts
index 9df2a95330b..fe104f0dde9 100644
--- a/packages/http-client-csharp/emitter/src/emitter.ts
+++ b/packages/http-client-csharp/emitter/src/emitter.ts
@@ -1,23 +1,21 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import { createSdkContext, SdkContext } from "@azure-tools/typespec-client-generator-core";
-import {
-  createDiagnosticCollector,
-  Diagnostic,
-  EmitContext,
-  Program,
-  resolvePath,
-} from "@typespec/compiler";
+import type { SdkContext } from "@azure-tools/typespec-client-generator-core";
+import { createSdkContext } from "@azure-tools/typespec-client-generator-core";
+import type { Diagnostic, EmitContext, Program } from "@typespec/compiler";
+import { createDiagnosticCollector, resolvePath } from "@typespec/compiler";
 import { serializeCodeModel } from "./code-model-writer.js";
 import { generate } from "./emit-generate.js";
 import { createModel } from "./lib/client-model-builder.js";
 import { LoggerLevel } from "./lib/logger-level.js";
 import { Logger } from "./lib/logger.js";
-import { CSharpEmitterOptions, resolveOptions } from "./options.js";
-import { createCSharpEmitterContext, CSharpEmitterContext } from "./sdk-context.js";
-import { CodeModel } from "./type/code-model.js";
-import { Configuration } from "./type/configuration.js";
+import type { CSharpEmitterOptions } from "./options.js";
+import { resolveOptions } from "./options.js";
+import type { CSharpEmitterContext } from "./sdk-context.js";
+import { createCSharpEmitterContext } from "./sdk-context.js";
+import type { CodeModel } from "./type/code-model.js";
+import type { Configuration } from "./type/configuration.js";
 
 /**
  * Creates a code model by executing the full emission logic.
diff --git a/packages/http-client-csharp/emitter/src/index.ts b/packages/http-client-csharp/emitter/src/index.ts
index fb26b5a8b09..42ca3b0703a 100644
--- a/packages/http-client-csharp/emitter/src/index.ts
+++ b/packages/http-client-csharp/emitter/src/index.ts
@@ -10,18 +10,15 @@ export { createModel } from "./lib/client-model-builder.js";
 export { $lib, createDiagnostic, getTracer, reportDiagnostic } from "./lib/lib.js";
 export { LoggerLevel } from "./lib/logger-level.js";
 export { Logger } from "./lib/logger.js";
-export {
-  CSharpEmitterOptions,
-  CSharpEmitterOptionsSchema,
-  defaultOptions,
-  resolveOptions,
-} from "./options.js";
+export { CSharpEmitterOptionsSchema, defaultOptions, resolveOptions } from "./options.js";
+export type { CSharpEmitterOptions } from "./options.js";
 // we export `createCSharpEmitterContext` only for autorest.csharp because it uses the emitter to generate the code model file but not calling the dll here
 // we could remove this export when in the future we deprecate autorest.csharp
 export { $dynamicModel, isDynamicModel } from "./lib/decorators.js";
-export { CSharpEmitterContext, createCSharpEmitterContext } from "./sdk-context.js";
-export { CodeModel } from "./type/code-model.js";
-export { InputClient, InputModelType } from "./type/input-type.js";
+export { createCSharpEmitterContext } from "./sdk-context.js";
+export type { CSharpEmitterContext } from "./sdk-context.js";
+export type { CodeModel } from "./type/code-model.js";
+export type { InputClient, InputModelType } from "./type/input-type.js";
 
 /** @internal */
 export { $decorators } from "./tsp-index.js";
diff --git a/packages/http-client-csharp/emitter/src/lib/client-converter.ts b/packages/http-client-csharp/emitter/src/lib/client-converter.ts
index 2dbab230f56..69a49c614d6 100644
--- a/packages/http-client-csharp/emitter/src/lib/client-converter.ts
+++ b/packages/http-client-csharp/emitter/src/lib/client-converter.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import {
+import type {
   SdkClientType as SdkClientTypeOfT,
   SdkCredentialParameter,
   SdkEndpointParameter,
@@ -9,10 +9,11 @@ import {
   SdkHttpOperation,
   SdkMethodParameter,
 } from "@azure-tools/typespec-client-generator-core";
-import { createDiagnosticCollector, Diagnostic, NoTarget } from "@typespec/compiler";
-import { CSharpEmitterContext } from "../sdk-context.js";
+import type { Diagnostic } from "@typespec/compiler";
+import { createDiagnosticCollector, NoTarget } from "@typespec/compiler";
+import type { CSharpEmitterContext } from "../sdk-context.js";
 import { InputParameterScope } from "../type/input-parameter-scope.js";
-import {
+import type {
   InputClient,
   InputEndpointParameter,
   InputParameter,
diff --git a/packages/http-client-csharp/emitter/src/lib/client-model-builder.ts b/packages/http-client-csharp/emitter/src/lib/client-model-builder.ts
index f1165eff1a6..72b2047fa85 100644
--- a/packages/http-client-csharp/emitter/src/lib/client-model-builder.ts
+++ b/packages/http-client-csharp/emitter/src/lib/client-model-builder.ts
@@ -1,15 +1,16 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import {
+import type {
   SdkClientType,
   SdkEnumType,
   SdkHttpOperation,
 } from "@azure-tools/typespec-client-generator-core";
-import { createDiagnosticCollector, Diagnostic, NoTarget } from "@typespec/compiler";
-import { CSharpEmitterContext } from "../sdk-context.js";
-import { CodeModel } from "../type/code-model.js";
-import { InputEnumType, InputLiteralType, InputModelType } from "../type/input-type.js";
+import type { Diagnostic } from "@typespec/compiler";
+import { createDiagnosticCollector, NoTarget } from "@typespec/compiler";
+import type { CSharpEmitterContext } from "../sdk-context.js";
+import type { CodeModel } from "../type/code-model.js";
+import type { InputEnumType, InputLiteralType, InputModelType } from "../type/input-type.js";
 import { fromSdkClients } from "./client-converter.js";
 import { createDiagnostic } from "./lib.js";
 import { fromSdkNamespaces } from "./namespace-converter.js";
diff --git a/packages/http-client-csharp/emitter/src/lib/decorators.ts b/packages/http-client-csharp/emitter/src/lib/decorators.ts
index 30268ab094f..dfe7bd18522 100644
--- a/packages/http-client-csharp/emitter/src/lib/decorators.ts
+++ b/packages/http-client-csharp/emitter/src/lib/decorators.ts
@@ -1,8 +1,8 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import { SdkContext } from "@azure-tools/typespec-client-generator-core";
-import {
+import type { SdkContext } from "@azure-tools/typespec-client-generator-core";
+import type {
   DecoratedType,
   DecoratorContext,
   Model,
@@ -10,10 +10,10 @@ import {
   Operation,
   Program,
   Type,
-  setTypeSpecNamespace,
 } from "@typespec/compiler";
+import { setTypeSpecNamespace } from "@typespec/compiler";
 import type { DynamicModelDecorator } from "../../../generated-defs/TypeSpec.HttpClient.CSharp.js";
-import { ExternalDocs } from "../type/external-docs.js";
+import type { ExternalDocs } from "../type/external-docs.js";
 
 /**
  * The fully qualified decorator name pattern for the dynamicModel decorator.
diff --git a/packages/http-client-csharp/emitter/src/lib/example-converter.ts b/packages/http-client-csharp/emitter/src/lib/example-converter.ts
index ce23c24eb70..4605ed20b02 100644
--- a/packages/http-client-csharp/emitter/src/lib/example-converter.ts
+++ b/packages/http-client-csharp/emitter/src/lib/example-converter.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import {
+import type {
   SdkArrayExampleValue,
   SdkBooleanExampleValue,
   SdkDictionaryExampleValue,
@@ -16,9 +16,10 @@ import {
   SdkUnionExampleValue,
   SdkUnknownExampleValue,
 } from "@azure-tools/typespec-client-generator-core";
-import { createDiagnosticCollector, Diagnostic } from "@typespec/compiler";
-import { CSharpEmitterContext } from "../sdk-context.js";
-import {
+import type { Diagnostic } from "@typespec/compiler";
+import { createDiagnosticCollector } from "@typespec/compiler";
+import type { CSharpEmitterContext } from "../sdk-context.js";
+import type {
   InputArrayExampleValue,
   InputBooleanExampleValue,
   InputDictionaryExampleValue,
@@ -33,7 +34,7 @@ import {
   InputUnknownExampleValue,
   OperationResponseExample,
 } from "../type/input-examples.js";
-import {
+import type {
   InputArrayType,
   InputDictionaryType,
   InputHttpParameter,
diff --git a/packages/http-client-csharp/emitter/src/lib/exec-utils.ts b/packages/http-client-csharp/emitter/src/lib/exec-utils.ts
index 8e9684718da..bdc382edab8 100644
--- a/packages/http-client-csharp/emitter/src/lib/exec-utils.ts
+++ b/packages/http-client-csharp/emitter/src/lib/exec-utils.ts
@@ -5,9 +5,11 @@
 // file so that browser bundles (which do not support `child_process`) do not
 // pull them in transitively via `lib/utils.ts`.
 
-import { NoTarget, Type } from "@typespec/compiler";
-import { spawn, SpawnOptions } from "child_process";
-import { CSharpEmitterContext } from "../sdk-context.js";
+import type { Type } from "@typespec/compiler";
+import { NoTarget } from "@typespec/compiler";
+import type { SpawnOptions } from "child_process";
+import { spawn } from "child_process";
+import type { CSharpEmitterContext } from "../sdk-context.js";
 
 export async function execCSharpGenerator(
   context: CSharpEmitterContext,
diff --git a/packages/http-client-csharp/emitter/src/lib/lib.ts b/packages/http-client-csharp/emitter/src/lib/lib.ts
index a3c5c96a649..b82bab80f0b 100644
--- a/packages/http-client-csharp/emitter/src/lib/lib.ts
+++ b/packages/http-client-csharp/emitter/src/lib/lib.ts
@@ -1,12 +1,8 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import {
-  createTypeSpecLibrary,
-  DiagnosticDefinition,
-  DiagnosticMessages,
-  paramMessage,
-} from "@typespec/compiler";
+import type { DiagnosticDefinition, DiagnosticMessages } from "@typespec/compiler";
+import { createTypeSpecLibrary, paramMessage } from "@typespec/compiler";
 import { CSharpEmitterOptionsSchema } from "../options.js";
 
 export type DiagnosticMessagesMap = {
diff --git a/packages/http-client-csharp/emitter/src/lib/logger.ts b/packages/http-client-csharp/emitter/src/lib/logger.ts
index 8b1682f0c27..258fe0f6c63 100644
--- a/packages/http-client-csharp/emitter/src/lib/logger.ts
+++ b/packages/http-client-csharp/emitter/src/lib/logger.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import { Program, Tracer } from "@typespec/compiler";
+import type { Program, Tracer } from "@typespec/compiler";
 import { getTracer } from "./lib.js";
 import { LoggerLevel } from "./logger-level.js";
 
diff --git a/packages/http-client-csharp/emitter/src/lib/namespace-converter.ts b/packages/http-client-csharp/emitter/src/lib/namespace-converter.ts
index cfc2eb761a0..cd71b486754 100644
--- a/packages/http-client-csharp/emitter/src/lib/namespace-converter.ts
+++ b/packages/http-client-csharp/emitter/src/lib/namespace-converter.ts
@@ -1,7 +1,8 @@
-import { SdkHttpOperation, SdkNamespace } from "@azure-tools/typespec-client-generator-core";
-import { createDiagnosticCollector, Diagnostic } from "@typespec/compiler";
-import { CSharpEmitterContext } from "../sdk-context.js";
-import { InputNamespace } from "../type/input-type.js";
+import type { SdkHttpOperation, SdkNamespace } from "@azure-tools/typespec-client-generator-core";
+import type { Diagnostic } from "@typespec/compiler";
+import { createDiagnosticCollector } from "@typespec/compiler";
+import type { CSharpEmitterContext } from "../sdk-context.js";
+import type { InputNamespace } from "../type/input-type.js";
 
 export function fromSdkNamespaces(
   sdkContext: CSharpEmitterContext,
diff --git a/packages/http-client-csharp/emitter/src/lib/operation-converter.ts b/packages/http-client-csharp/emitter/src/lib/operation-converter.ts
index 59f35f75e03..6210a2c7636 100644
--- a/packages/http-client-csharp/emitter/src/lib/operation-converter.ts
+++ b/packages/http-client-csharp/emitter/src/lib/operation-converter.ts
@@ -1,12 +1,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import {
-  getClientNamespace,
-  getClientOptions,
-  getHttpOperationParameter,
-  getParamAlias,
-  isHttpMetadata,
+import type {
   SdkBodyParameter,
   SdkBuiltInKinds,
   SdkContext,
@@ -25,25 +20,32 @@ import {
   SdkServiceMethod,
   SdkServiceResponseHeader,
   SdkType,
+} from "@azure-tools/typespec-client-generator-core";
+import {
+  getClientNamespace,
+  getClientOptions,
+  getHttpOperationParameter,
+  getParamAlias,
+  isHttpMetadata,
   shouldGenerateConvenient,
   shouldGenerateProtocol,
 } from "@azure-tools/typespec-client-generator-core";
+import type { Diagnostic } from "@typespec/compiler";
 import {
   createDiagnosticCollector,
-  Diagnostic,
   getDeprecated,
   isErrorModel,
   NoTarget,
 } from "@typespec/compiler";
-import { HttpStatusCodeRange } from "@typespec/http";
+import type { HttpStatusCodeRange } from "@typespec/http";
 import { getResourceOperation } from "@typespec/rest";
-import { CSharpEmitterContext } from "../sdk-context.js";
+import type { CSharpEmitterContext } from "../sdk-context.js";
 import { collectionFormatToDelimMap } from "../type/collection-format.js";
-import { HttpResponseHeader } from "../type/http-response-header.js";
-import { InputConstant } from "../type/input-constant.js";
-import { InputOperation } from "../type/input-operation.js";
+import type { HttpResponseHeader } from "../type/http-response-header.js";
+import type { InputConstant } from "../type/input-constant.js";
+import type { InputOperation } from "../type/input-operation.js";
 import { InputParameterScope } from "../type/input-parameter-scope.js";
-import {
+import type {
   InputBasicServiceMethod,
   InputContinuationToken,
   InputLongRunningPagingServiceMethod,
@@ -55,7 +57,7 @@ import {
   InputServiceMethod,
   InputServiceMethodResponse,
 } from "../type/input-service-method.js";
-import {
+import type {
   InputBodyParameter,
   InputHeaderParameter,
   InputHttpParameter,
@@ -65,7 +67,7 @@ import {
   InputType,
 } from "../type/input-type.js";
 import { convertLroFinalStateVia } from "../type/operation-final-state-via.js";
-import { OperationResponse } from "../type/operation-response.js";
+import type { OperationResponse } from "../type/operation-response.js";
 import { RequestLocation } from "../type/request-location.js";
 import { parseHttpRequestMethod } from "../type/request-method.js";
 import { ResponseLocation } from "../type/response-location.js";
diff --git a/packages/http-client-csharp/emitter/src/lib/service-authentication.ts b/packages/http-client-csharp/emitter/src/lib/service-authentication.ts
index 52b1b44de5a..1522822696f 100644
--- a/packages/http-client-csharp/emitter/src/lib/service-authentication.ts
+++ b/packages/http-client-csharp/emitter/src/lib/service-authentication.ts
@@ -1,17 +1,18 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import {
+import type {
   SdkCredentialParameter,
   SdkCredentialType,
   SdkHttpOperation,
   SdkPackage,
 } from "@azure-tools/typespec-client-generator-core";
-import { createDiagnosticCollector, Diagnostic, NoTarget } from "@typespec/compiler";
-import { Oauth2Auth, OAuth2Flow } from "@typespec/http";
-import { CSharpEmitterContext } from "../sdk-context.js";
-import { InputAuth } from "../type/input-auth.js";
-import { InputOAuth2Flow } from "../type/input-oauth2-auth.js";
+import type { Diagnostic } from "@typespec/compiler";
+import { createDiagnosticCollector, NoTarget } from "@typespec/compiler";
+import type { Oauth2Auth, OAuth2Flow } from "@typespec/http";
+import type { CSharpEmitterContext } from "../sdk-context.js";
+import type { InputAuth } from "../type/input-auth.js";
+import type { InputOAuth2Flow } from "../type/input-oauth2-auth.js";
 import { createDiagnostic } from "./lib.js";
 
 export function processServiceAuthentication(
diff --git a/packages/http-client-csharp/emitter/src/lib/type-converter.ts b/packages/http-client-csharp/emitter/src/lib/type-converter.ts
index f9557af26c2..cb545d8d8e1 100644
--- a/packages/http-client-csharp/emitter/src/lib/type-converter.ts
+++ b/packages/http-client-csharp/emitter/src/lib/type-converter.ts
@@ -1,10 +1,8 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import {
+import type {
   DecoratorInfo,
-  getAccessOverride,
-  isHttpMetadata,
   SdkArrayType,
   SdkBuiltInType,
   SdkConstantType,
@@ -18,12 +16,17 @@ import {
   SdkModelType,
   SdkType,
   SdkUnionType,
+} from "@azure-tools/typespec-client-generator-core";
+import {
+  getAccessOverride,
+  isHttpMetadata,
   UsageFlags,
 } from "@azure-tools/typespec-client-generator-core";
-import { createDiagnosticCollector, Diagnostic, Model, NoTarget } from "@typespec/compiler";
+import type { Diagnostic, Model } from "@typespec/compiler";
+import { createDiagnosticCollector, NoTarget } from "@typespec/compiler";
 import { _httpFileCrossLanguageDefinitionId } from "../constants.js";
-import { CSharpEmitterContext } from "../sdk-context.js";
-import {
+import type { CSharpEmitterContext } from "../sdk-context.js";
+import type {
   InputArrayType,
   InputDateTimeType,
   InputDictionaryType,
diff --git a/packages/http-client-csharp/emitter/src/lib/typespec-server.ts b/packages/http-client-csharp/emitter/src/lib/typespec-server.ts
index f31b9830dda..d3c914f9a75 100644
--- a/packages/http-client-csharp/emitter/src/lib/typespec-server.ts
+++ b/packages/http-client-csharp/emitter/src/lib/typespec-server.ts
@@ -2,19 +2,14 @@
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
 import { getClientType } from "@azure-tools/typespec-client-generator-core";
-import {
-  createDiagnosticCollector,
-  Diagnostic,
-  getDoc,
-  getSummary,
-  Value,
-} from "@typespec/compiler";
-import { HttpServer } from "@typespec/http";
+import type { Diagnostic, Value } from "@typespec/compiler";
+import { createDiagnosticCollector, getDoc, getSummary } from "@typespec/compiler";
+import type { HttpServer } from "@typespec/http";
 import { getExtensions } from "@typespec/openapi";
-import { CSharpEmitterContext } from "../sdk-context.js";
-import { InputConstant } from "../type/input-constant.js";
+import type { CSharpEmitterContext } from "../sdk-context.js";
+import type { InputConstant } from "../type/input-constant.js";
 import { InputParameterScope } from "../type/input-parameter-scope.js";
-import { InputEndpointParameter, InputType } from "../type/input-type.js";
+import type { InputEndpointParameter, InputType } from "../type/input-type.js";
 import { fromSdkType } from "./type-converter.js";
 
 export interface TypeSpecServer {
diff --git a/packages/http-client-csharp/emitter/src/lib/utils.ts b/packages/http-client-csharp/emitter/src/lib/utils.ts
index f2831b40ee4..2143609cf44 100644
--- a/packages/http-client-csharp/emitter/src/lib/utils.ts
+++ b/packages/http-client-csharp/emitter/src/lib/utils.ts
@@ -1,15 +1,18 @@
-import {
-  listAllServiceNamespaces,
+import type {
   SdkClientType,
   SdkHttpOperation,
   SdkHttpParameter,
   SdkMethodParameter,
   SdkModelPropertyType,
+} from "@azure-tools/typespec-client-generator-core";
+import {
+  listAllServiceNamespaces,
   isReadOnly as tcgcIsReadOnly,
 } from "@azure-tools/typespec-client-generator-core";
-import { getNamespaceFullName, Namespace } from "@typespec/compiler";
+import type { Namespace } from "@typespec/compiler";
+import { getNamespaceFullName } from "@typespec/compiler";
 import { Visibility } from "@typespec/http";
-import { CSharpEmitterContext } from "../sdk-context.js";
+import type { CSharpEmitterContext } from "../sdk-context.js";
 
 export function getClientNamespaceString(context: CSharpEmitterContext): string | undefined {
   const packageName = context.emitContext.options["package-name"];
diff --git a/packages/http-client-csharp/emitter/src/options.ts b/packages/http-client-csharp/emitter/src/options.ts
index 6978e355f9b..31bbc75d483 100644
--- a/packages/http-client-csharp/emitter/src/options.ts
+++ b/packages/http-client-csharp/emitter/src/options.ts
@@ -1,8 +1,6 @@
-import {
-  CreateSdkContextOptions,
-  UnbrandedSdkEmitterOptions,
-} from "@azure-tools/typespec-client-generator-core";
-import { EmitContext, JSONSchemaType } from "@typespec/compiler";
+import type { CreateSdkContextOptions } from "@azure-tools/typespec-client-generator-core";
+import { UnbrandedSdkEmitterOptions } from "@azure-tools/typespec-client-generator-core";
+import type { EmitContext, JSONSchemaType } from "@typespec/compiler";
 import { _defaultGeneratorName } from "./constants.js";
 import { DYNAMIC_MODEL_DECORATOR_PATTERN } from "./lib/decorators.js";
 import { LoggerLevel } from "./lib/logger-level.js";
diff --git a/packages/http-client-csharp/emitter/src/sdk-context.ts b/packages/http-client-csharp/emitter/src/sdk-context.ts
index 1c8d3b03162..d5c96429f60 100644
--- a/packages/http-client-csharp/emitter/src/sdk-context.ts
+++ b/packages/http-client-csharp/emitter/src/sdk-context.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import {
+import type {
   SdkClientType,
   SdkConstantType,
   SdkContext,
@@ -14,12 +14,12 @@ import {
   SdkServiceMethod,
   SdkType,
 } from "@azure-tools/typespec-client-generator-core";
-import { Type } from "@typespec/compiler";
-import { Logger } from "./lib/logger.js";
-import { CSharpEmitterOptions } from "./options.js";
-import { InputOperation } from "./type/input-operation.js";
-import { InputServiceMethod } from "./type/input-service-method.js";
-import {
+import type { Type } from "@typespec/compiler";
+import type { Logger } from "./lib/logger.js";
+import type { CSharpEmitterOptions } from "./options.js";
+import type { InputOperation } from "./type/input-operation.js";
+import type { InputServiceMethod } from "./type/input-service-method.js";
+import type {
   InputClient,
   InputHttpParameter,
   InputLiteralType,
@@ -28,7 +28,7 @@ import {
   InputNamespace,
   InputType,
 } from "./type/input-type.js";
-import { OperationResponse } from "./type/operation-response.js";
+import type { OperationResponse } from "./type/operation-response.js";
 
 /**
  * The emitter context for the CSharp emitter.
diff --git a/packages/http-client-csharp/emitter/src/type/code-model.ts b/packages/http-client-csharp/emitter/src/type/code-model.ts
index 0194b920e30..31e6afe3732 100644
--- a/packages/http-client-csharp/emitter/src/type/code-model.ts
+++ b/packages/http-client-csharp/emitter/src/type/code-model.ts
@@ -1,8 +1,8 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import { InputAuth } from "./input-auth.js";
-import { InputClient, InputEnumType, InputLiteralType, InputModelType } from "./input-type.js";
+import type { InputAuth } from "./input-auth.js";
+import type { InputClient, InputEnumType, InputLiteralType, InputModelType } from "./input-type.js";
 
 /**
  * The code model for the CSharp emitter.
diff --git a/packages/http-client-csharp/emitter/src/type/http-response-header.ts b/packages/http-client-csharp/emitter/src/type/http-response-header.ts
index 96917e5bb42..9a65866e4b7 100644
--- a/packages/http-client-csharp/emitter/src/type/http-response-header.ts
+++ b/packages/http-client-csharp/emitter/src/type/http-response-header.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import { InputType } from "./input-type.js";
+import type { InputType } from "./input-type.js";
 
 export interface HttpResponseHeader {
   name: string;
diff --git a/packages/http-client-csharp/emitter/src/type/input-auth.ts b/packages/http-client-csharp/emitter/src/type/input-auth.ts
index 511f3e4f81d..7d8a7b0a094 100644
--- a/packages/http-client-csharp/emitter/src/type/input-auth.ts
+++ b/packages/http-client-csharp/emitter/src/type/input-auth.ts
@@ -1,8 +1,8 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import { InputApiKeyAuth } from "./input-api-key-auth.js";
-import { InputOAuth2Auth } from "./input-oauth2-auth.js";
+import type { InputApiKeyAuth } from "./input-api-key-auth.js";
+import type { InputOAuth2Auth } from "./input-oauth2-auth.js";
 
 export interface InputAuth {
   apiKey?: InputApiKeyAuth;
diff --git a/packages/http-client-csharp/emitter/src/type/input-constant.ts b/packages/http-client-csharp/emitter/src/type/input-constant.ts
index bca46bcee58..feee82e2675 100644
--- a/packages/http-client-csharp/emitter/src/type/input-constant.ts
+++ b/packages/http-client-csharp/emitter/src/type/input-constant.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import { InputType } from "./input-type.js";
+import type { InputType } from "./input-type.js";
 
 export interface InputConstant {
   value?: any;
diff --git a/packages/http-client-csharp/emitter/src/type/input-examples.ts b/packages/http-client-csharp/emitter/src/type/input-examples.ts
index ef67b45575c..74222c31cb3 100644
--- a/packages/http-client-csharp/emitter/src/type/input-examples.ts
+++ b/packages/http-client-csharp/emitter/src/type/input-examples.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import {
+import type {
   InputArrayType,
   InputDictionaryType,
   InputHttpParameter,
@@ -12,7 +12,7 @@ import {
   InputType,
   InputUnionType,
 } from "./input-type.js";
-import { OperationResponse } from "./operation-response.js";
+import type { OperationResponse } from "./operation-response.js";
 
 interface InputExampleBase {
   kind: string;
diff --git a/packages/http-client-csharp/emitter/src/type/input-operation.ts b/packages/http-client-csharp/emitter/src/type/input-operation.ts
index cf0adbef5af..809719303e7 100644
--- a/packages/http-client-csharp/emitter/src/type/input-operation.ts
+++ b/packages/http-client-csharp/emitter/src/type/input-operation.ts
@@ -1,11 +1,11 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import { DecoratorInfo } from "@azure-tools/typespec-client-generator-core";
-import { InputHttpOperationExample } from "./input-examples.js";
-import { InputHttpParameter } from "./input-type.js";
-import { OperationResponse } from "./operation-response.js";
-import { RequestMethod } from "./request-method.js";
+import type { DecoratorInfo } from "@azure-tools/typespec-client-generator-core";
+import type { InputHttpOperationExample } from "./input-examples.js";
+import type { InputHttpParameter } from "./input-type.js";
+import type { OperationResponse } from "./operation-response.js";
+import type { RequestMethod } from "./request-method.js";
 
 export interface InputOperation {
   name: string;
diff --git a/packages/http-client-csharp/emitter/src/type/input-service-method.ts b/packages/http-client-csharp/emitter/src/type/input-service-method.ts
index b30b6e2291c..124d1b5a73c 100644
--- a/packages/http-client-csharp/emitter/src/type/input-service-method.ts
+++ b/packages/http-client-csharp/emitter/src/type/input-service-method.ts
@@ -1,11 +1,11 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import { InputOperation } from "./input-operation.js";
-import { InputMethodParameter, InputParameter, InputType } from "./input-type.js";
-import { OperationFinalStateVia } from "./operation-final-state-via.js";
-import { OperationResponse } from "./operation-response.js";
-import { ResponseLocation } from "./response-location.js";
+import type { InputOperation } from "./input-operation.js";
+import type { InputMethodParameter, InputParameter, InputType } from "./input-type.js";
+import type { OperationFinalStateVia } from "./operation-final-state-via.js";
+import type { OperationResponse } from "./operation-response.js";
+import type { ResponseLocation } from "./response-location.js";
 
 export type InputServiceMethod =
   | InputBasicServiceMethod
diff --git a/packages/http-client-csharp/emitter/src/type/input-type.ts b/packages/http-client-csharp/emitter/src/type/input-type.ts
index 5e32bd2a9b1..168a3da2809 100644
--- a/packages/http-client-csharp/emitter/src/type/input-type.ts
+++ b/packages/http-client-csharp/emitter/src/type/input-type.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import {
+import type {
   AccessFlags,
   CollectionFormat,
   DecoratorInfo,
@@ -10,11 +10,11 @@ import {
   SerializationOptions,
   UsageFlags,
 } from "@azure-tools/typespec-client-generator-core";
-import { DateTimeKnownEncoding, DurationKnownEncoding } from "@typespec/compiler";
-import { InputConstant } from "./input-constant.js";
-import { InputParameterScope } from "./input-parameter-scope.js";
-import { InputServiceMethod } from "./input-service-method.js";
-import { RequestLocation } from "./request-location.js";
+import type { DateTimeKnownEncoding, DurationKnownEncoding } from "@typespec/compiler";
+import type { InputConstant } from "./input-constant.js";
+import type { InputParameterScope } from "./input-parameter-scope.js";
+import type { InputServiceMethod } from "./input-service-method.js";
+import type { RequestLocation } from "./request-location.js";
 
 /**
  * External type information for types that map to external library types.
diff --git a/packages/http-client-csharp/emitter/src/type/operation-response.ts b/packages/http-client-csharp/emitter/src/type/operation-response.ts
index 6ed674414d2..265b9d9f11e 100644
--- a/packages/http-client-csharp/emitter/src/type/operation-response.ts
+++ b/packages/http-client-csharp/emitter/src/type/operation-response.ts
@@ -1,9 +1,9 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
-import { SerializationOptions } from "@azure-tools/typespec-client-generator-core";
-import { HttpResponseHeader } from "./http-response-header.js";
-import { InputType } from "./input-type.js";
+import type { SerializationOptions } from "@azure-tools/typespec-client-generator-core";
+import type { HttpResponseHeader } from "./http-response-header.js";
+import type { InputType } from "./input-type.js";
 
 export interface OperationResponse {
   statusCodes: number[];
diff --git a/packages/http-client-csharp/emitter/test/Unit/auth.test.ts b/packages/http-client-csharp/emitter/test/Unit/auth.test.ts
index ceac4514668..242ba99f8ea 100644
--- a/packages/http-client-csharp/emitter/test/Unit/auth.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/auth.test.ts
@@ -1,6 +1,6 @@
 vi.resetModules();
 
-import { TestHost } from "@typespec/compiler/testing";
+import type { TestHost } from "@typespec/compiler/testing";
 import { ok, strictEqual } from "assert";
 import { beforeEach, describe, it, vi } from "vitest";
 import { createModel } from "../../src/lib/client-model-builder.js";
diff --git a/packages/http-client-csharp/emitter/test/Unit/client-converter.test.ts b/packages/http-client-csharp/emitter/test/Unit/client-converter.test.ts
index 61629b4eab2..720d1f94a1e 100644
--- a/packages/http-client-csharp/emitter/test/Unit/client-converter.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/client-converter.test.ts
@@ -1,11 +1,11 @@
 vi.resetModules();
 
-import { TestHost } from "@typespec/compiler/testing";
+import type { TestHost } from "@typespec/compiler/testing";
 import { ok, strictEqual } from "assert";
 import { beforeEach, describe, it, vi } from "vitest";
 import { createModel } from "../../src/lib/client-model-builder.js";
 import { containsMultiServiceClient } from "../../src/lib/utils.js";
-import { InputClient } from "../../src/type/input-type.js";
+import type { InputClient } from "../../src/type/input-type.js";
 import {
   createCSharpSdkContext,
   createEmitterContext,
diff --git a/packages/http-client-csharp/emitter/test/Unit/client-initialization.test.ts b/packages/http-client-csharp/emitter/test/Unit/client-initialization.test.ts
index a92709bdd4d..63ec63555d5 100644
--- a/packages/http-client-csharp/emitter/test/Unit/client-initialization.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/client-initialization.test.ts
@@ -1,10 +1,10 @@
 vi.resetModules();
 
-import { TestHost } from "@typespec/compiler/testing";
+import type { TestHost } from "@typespec/compiler/testing";
 import { ok, strictEqual } from "assert";
 import { beforeEach, describe, it, vi } from "vitest";
 import { createModel } from "../../src/lib/client-model-builder.js";
-import { InputMethodParameter } from "../../src/type/input-type.js";
+import type { InputMethodParameter } from "../../src/type/input-type.js";
 import {
   createCSharpSdkContext,
   createEmitterContext,
diff --git a/packages/http-client-csharp/emitter/test/Unit/client-model-builder.test.ts b/packages/http-client-csharp/emitter/test/Unit/client-model-builder.test.ts
index 954a7296b4b..d1b17a0420c 100644
--- a/packages/http-client-csharp/emitter/test/Unit/client-model-builder.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/client-model-builder.test.ts
@@ -1,10 +1,10 @@
 vi.resetModules();
 
-import { TestHost } from "@typespec/compiler/testing";
+import type { TestHost } from "@typespec/compiler/testing";
 import { ok, strictEqual } from "assert";
 import { beforeEach, describe, it, vi } from "vitest";
 import { createModel } from "../../src/lib/client-model-builder.js";
-import { InputEnumType } from "../../src/type/input-type.js";
+import type { InputEnumType } from "../../src/type/input-type.js";
 import {
   createCSharpSdkContext,
   createEmitterContext,
diff --git a/packages/http-client-csharp/emitter/test/Unit/constant-type.test.ts b/packages/http-client-csharp/emitter/test/Unit/constant-type.test.ts
index 3730f08dbdd..5f030f477be 100644
--- a/packages/http-client-csharp/emitter/test/Unit/constant-type.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/constant-type.test.ts
@@ -1,11 +1,11 @@
 vi.resetModules();
 
 import { UsageFlags } from "@azure-tools/typespec-client-generator-core";
-import { TestHost } from "@typespec/compiler/testing";
+import type { TestHost } from "@typespec/compiler/testing";
 import { ok, strictEqual } from "assert";
 import { beforeEach, describe, it, vi } from "vitest";
 import { createModel } from "../../src/lib/client-model-builder.js";
-import { InputEnumType, InputNullableType } from "../../src/type/input-type.js";
+import type { InputEnumType, InputNullableType } from "../../src/type/input-type.js";
 import {
   createCSharpSdkContext,
   createEmitterContext,
diff --git a/packages/http-client-csharp/emitter/test/Unit/decorator-list.test.ts b/packages/http-client-csharp/emitter/test/Unit/decorator-list.test.ts
index 53df8aa6e86..14ccf8d5286 100644
--- a/packages/http-client-csharp/emitter/test/Unit/decorator-list.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/decorator-list.test.ts
@@ -1,6 +1,6 @@
 vi.resetModules();
 
-import { TestHost } from "@typespec/compiler/testing";
+import type { TestHost } from "@typespec/compiler/testing";
 import { deepStrictEqual, strictEqual } from "assert";
 import { ok } from "assert/strict";
 import { beforeEach, describe, it, vi } from "vitest";
diff --git a/packages/http-client-csharp/emitter/test/Unit/emitter.test.ts b/packages/http-client-csharp/emitter/test/Unit/emitter.test.ts
index b7eb8071e89..f33588dd6bb 100644
--- a/packages/http-client-csharp/emitter/test/Unit/emitter.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/emitter.test.ts
@@ -1,12 +1,12 @@
 vi.resetModules();
 
-import { EmitContext, Program } from "@typespec/compiler";
-import { TestHost } from "@typespec/compiler/testing";
+import type { EmitContext, Program } from "@typespec/compiler";
+import type { TestHost } from "@typespec/compiler/testing";
 import { beforeEach, describe, expect, it, vi } from "vitest";
 import { generate } from "../../src/emit-generate.js";
 import { execAsync, execCSharpGenerator } from "../../src/lib/exec-utils.js";
-import { CSharpEmitterOptions } from "../../src/options.js";
-import { CodeModel } from "../../src/type/code-model.js";
+import type { CSharpEmitterOptions } from "../../src/options.js";
+import type { CodeModel } from "../../src/type/code-model.js";
 import {
   createEmitterContext,
   createEmitterTestHost,
diff --git a/packages/http-client-csharp/emitter/test/Unit/encode.test.ts b/packages/http-client-csharp/emitter/test/Unit/encode.test.ts
index 6344bd3f4ca..1b1910be63e 100644
--- a/packages/http-client-csharp/emitter/test/Unit/encode.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/encode.test.ts
@@ -1,6 +1,6 @@
 vi.resetModules();
 
-import { TestHost } from "@typespec/compiler/testing";
+import type { TestHost } from "@typespec/compiler/testing";
 import { ok, strictEqual } from "assert";
 import { beforeEach, describe, it, vi } from "vitest";
 import { createModel } from "../../src/lib/client-model-builder.js";
diff --git a/packages/http-client-csharp/emitter/test/Unit/enum-dedup-repro.test.ts b/packages/http-client-csharp/emitter/test/Unit/enum-dedup-repro.test.ts
index 95943f34e00..33ff5ae59d3 100644
--- a/packages/http-client-csharp/emitter/test/Unit/enum-dedup-repro.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/enum-dedup-repro.test.ts
@@ -1,6 +1,6 @@
 vi.resetModules();
 
-import { TestHost } from "@typespec/compiler/testing";
+import type { TestHost } from "@typespec/compiler/testing";
 import { strictEqual } from "assert";
 import { beforeEach, describe, it, vi } from "vitest";
 import { createModel } from "../../src/lib/client-model-builder.js";
diff --git a/packages/http-client-csharp/emitter/test/Unit/input-parameter.test.ts b/packages/http-client-csharp/emitter/test/Unit/input-parameter.test.ts
index 7e4db98cba1..6353fff468a 100644
--- a/packages/http-client-csharp/emitter/test/Unit/input-parameter.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/input-parameter.test.ts
@@ -1,11 +1,11 @@
 vi.resetModules();
 
-import { TestHost } from "@typespec/compiler/testing";
+import type { TestHost } from "@typespec/compiler/testing";
 import { ok, strictEqual } from "assert";
 import { beforeEach, describe, it, vi } from "vitest";
 import { createModel } from "../../src/lib/client-model-builder.js";
 import { InputParameterScope } from "../../src/type/input-parameter-scope.js";
-import {
+import type {
   InputBodyParameter,
   InputHeaderParameter,
   InputPathParameter,
diff --git a/packages/http-client-csharp/emitter/test/Unit/method-parameter-segments.test.ts b/packages/http-client-csharp/emitter/test/Unit/method-parameter-segments.test.ts
index 0940caf23e7..5acb63c1613 100644
--- a/packages/http-client-csharp/emitter/test/Unit/method-parameter-segments.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/method-parameter-segments.test.ts
@@ -1,9 +1,9 @@
-import { TestHost } from "@typespec/compiler/testing";
+import type { TestHost } from "@typespec/compiler/testing";
 import { ok, strictEqual } from "assert";
 import { beforeEach, describe, it } from "vitest";
 import { createModel } from "../../src/index.js";
-import { InputServiceMethod } from "../../src/type/input-service-method.js";
-import { InputHttpParameter, InputParameter } from "../../src/type/input-type.js";
+import type { InputServiceMethod } from "../../src/type/input-service-method.js";
+import type { InputHttpParameter, InputParameter } from "../../src/type/input-type.js";
 import {
   createCSharpSdkContext,
   createEmitterContext,
diff --git a/packages/http-client-csharp/emitter/test/Unit/model-type.test.ts b/packages/http-client-csharp/emitter/test/Unit/model-type.test.ts
index 93065301fd3..204ecbfec07 100644
--- a/packages/http-client-csharp/emitter/test/Unit/model-type.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/model-type.test.ts
@@ -1,11 +1,11 @@
 vi.resetModules();
 
 import { UsageFlags } from "@azure-tools/typespec-client-generator-core";
-import { TestHost } from "@typespec/compiler/testing";
+import type { TestHost } from "@typespec/compiler/testing";
 import assert, { deepStrictEqual, ok, strictEqual } from "assert";
 import { beforeEach, describe, it, vi } from "vitest";
 import { createModel } from "../../src/lib/client-model-builder.js";
-import { InputModelType } from "../../src/type/input-type.js";
+import type { InputModelType } from "../../src/type/input-type.js";
 import {
   createCSharpSdkContext,
   createEmitterContext,
diff --git a/packages/http-client-csharp/emitter/test/Unit/namespace-converter.test.ts b/packages/http-client-csharp/emitter/test/Unit/namespace-converter.test.ts
index 8179f78486b..f658a414885 100644
--- a/packages/http-client-csharp/emitter/test/Unit/namespace-converter.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/namespace-converter.test.ts
@@ -1,8 +1,8 @@
-import { TestHost } from "@typespec/compiler/testing";
+import type { TestHost } from "@typespec/compiler/testing";
 import { ok, strictEqual } from "assert";
 import { beforeEach, describe, it } from "vitest";
 import { fromSdkNamespaces } from "../../src/lib/namespace-converter.js";
-import { InputNamespace } from "../../src/type/input-type.js";
+import type { InputNamespace } from "../../src/type/input-type.js";
 import {
   createCSharpSdkContext,
   createEmitterContext,
diff --git a/packages/http-client-csharp/emitter/test/Unit/operation-converter.test.ts b/packages/http-client-csharp/emitter/test/Unit/operation-converter.test.ts
index 3863f242393..2bf4691df6c 100644
--- a/packages/http-client-csharp/emitter/test/Unit/operation-converter.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/operation-converter.test.ts
@@ -1,8 +1,8 @@
-import { TestHost } from "@typespec/compiler/testing";
+import type { TestHost } from "@typespec/compiler/testing";
 import { ok, strictEqual } from "assert";
 import { beforeEach, describe, it } from "vitest";
 import { createModel } from "../../src/lib/client-model-builder.js";
-import { InputEnumType } from "../../src/type/input-type.js";
+import type { InputEnumType } from "../../src/type/input-type.js";
 import { RequestLocation } from "../../src/type/request-location.js";
 import {
   createCSharpSdkContext,
diff --git a/packages/http-client-csharp/emitter/test/Unit/operation-paging.test.ts b/packages/http-client-csharp/emitter/test/Unit/operation-paging.test.ts
index 7c2060148ae..613e9b01aec 100644
--- a/packages/http-client-csharp/emitter/test/Unit/operation-paging.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/operation-paging.test.ts
@@ -1,6 +1,6 @@
 vi.resetModules();
 
-import { TestHost } from "@typespec/compiler/testing";
+import type { TestHost } from "@typespec/compiler/testing";
 import { ok, strictEqual } from "assert";
 import { beforeEach, describe, it, vi } from "vitest";
 import { createModel } from "../../src/lib/client-model-builder.js";
diff --git a/packages/http-client-csharp/emitter/test/Unit/options.test.ts b/packages/http-client-csharp/emitter/test/Unit/options.test.ts
index be8603adeb0..b2fe38d06b4 100644
--- a/packages/http-client-csharp/emitter/test/Unit/options.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/options.test.ts
@@ -1,11 +1,12 @@
 vi.resetModules();
 
 import { UnbrandedSdkEmitterOptions } from "@azure-tools/typespec-client-generator-core";
-import { EmitContext, Program } from "@typespec/compiler";
+import type { EmitContext, Program } from "@typespec/compiler";
 import { ok, strictEqual } from "assert";
 import { beforeEach, describe, expect, it, vi } from "vitest";
 import { createConfiguration } from "../../src/emitter.js";
-import { CSharpEmitterOptions, CSharpEmitterOptionsSchema } from "../../src/options.js";
+import type { CSharpEmitterOptions } from "../../src/options.js";
+import { CSharpEmitterOptionsSchema } from "../../src/options.js";
 import {
   createCSharpSdkContext,
   createEmitterContext,
diff --git a/packages/http-client-csharp/emitter/test/Unit/property-type.test.ts b/packages/http-client-csharp/emitter/test/Unit/property-type.test.ts
index e3589538bd3..1a9515465ff 100644
--- a/packages/http-client-csharp/emitter/test/Unit/property-type.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/property-type.test.ts
@@ -1,7 +1,7 @@
 vi.resetModules();
 
 import { UsageFlags } from "@azure-tools/typespec-client-generator-core";
-import { TestHost } from "@typespec/compiler/testing";
+import type { TestHost } from "@typespec/compiler/testing";
 import { strictEqual } from "assert";
 import { beforeEach, describe, it, vi } from "vitest";
 import { createModel } from "../../src/lib/client-model-builder.js";
diff --git a/packages/http-client-csharp/emitter/test/Unit/scalar.test.ts b/packages/http-client-csharp/emitter/test/Unit/scalar.test.ts
index cea35899816..acc81f3e708 100644
--- a/packages/http-client-csharp/emitter/test/Unit/scalar.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/scalar.test.ts
@@ -1,6 +1,6 @@
 vi.resetModules();
 
-import { TestHost } from "@typespec/compiler/testing";
+import type { TestHost } from "@typespec/compiler/testing";
 import { strictEqual } from "assert";
 import { beforeEach, describe, it, vi } from "vitest";
 import { createModel } from "../../src/lib/client-model-builder.js";
diff --git a/packages/http-client-csharp/emitter/test/Unit/string-format.test.ts b/packages/http-client-csharp/emitter/test/Unit/string-format.test.ts
index 3eea60ca0d1..b439d7aa5d0 100644
--- a/packages/http-client-csharp/emitter/test/Unit/string-format.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/string-format.test.ts
@@ -1,6 +1,6 @@
 vi.resetModules();
 
-import { TestHost } from "@typespec/compiler/testing";
+import type { TestHost } from "@typespec/compiler/testing";
 import { ok, strictEqual } from "assert";
 import { beforeEach, describe, it, vi } from "vitest";
 import { createModel } from "../../src/lib/client-model-builder.js";
diff --git a/packages/http-client-csharp/emitter/test/Unit/type-converter.test.ts b/packages/http-client-csharp/emitter/test/Unit/type-converter.test.ts
index b6fb88bbdf9..7c399bdd299 100644
--- a/packages/http-client-csharp/emitter/test/Unit/type-converter.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/type-converter.test.ts
@@ -1,12 +1,12 @@
 vi.resetModules();
 
-import { DecoratorInfo } from "@azure-tools/typespec-client-generator-core";
-import { TestHost } from "@typespec/compiler/testing";
+import type { DecoratorInfo } from "@azure-tools/typespec-client-generator-core";
+import type { TestHost } from "@typespec/compiler/testing";
 import { ok, strictEqual } from "assert";
 import { beforeEach, describe, it, vi } from "vitest";
 import { createModel } from "../../src/lib/client-model-builder.js";
 import { getAllModelDecorators } from "../../src/lib/type-converter.js";
-import { InputNamespace } from "../../src/type/input-type.js";
+import type { InputNamespace } from "../../src/type/input-type.js";
 import {
   createCSharpSdkContext,
   createEmitterContext,
diff --git a/packages/http-client-csharp/emitter/test/Unit/usage.test.ts b/packages/http-client-csharp/emitter/test/Unit/usage.test.ts
index ee0923b0174..b08f8a13a97 100644
--- a/packages/http-client-csharp/emitter/test/Unit/usage.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/usage.test.ts
@@ -1,7 +1,7 @@
 vi.resetModules();
 
 import { UsageFlags } from "@azure-tools/typespec-client-generator-core";
-import { TestHost } from "@typespec/compiler/testing";
+import type { TestHost } from "@typespec/compiler/testing";
 import { ok, strictEqual } from "assert";
 import { beforeEach, describe, it, vi } from "vitest";
 import { createModel } from "../../src/lib/client-model-builder.js";
diff --git a/packages/http-client-csharp/emitter/test/Unit/utils.test.ts b/packages/http-client-csharp/emitter/test/Unit/utils.test.ts
index f5d42ff505f..4d68d50075e 100644
--- a/packages/http-client-csharp/emitter/test/Unit/utils.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/utils.test.ts
@@ -4,7 +4,7 @@ import { EventEmitter } from "events";
 import { beforeEach, describe, expect, it, vi } from "vitest";
 import { execCSharpGenerator } from "../../src/lib/exec-utils.js";
 import { getClientNamespaceStringHelper } from "../../src/lib/utils.js";
-import { CSharpEmitterContext } from "../../src/sdk-context.js";
+import type { CSharpEmitterContext } from "../../src/sdk-context.js";
 import {
   createCSharpSdkContext,
   createEmitterContext,
diff --git a/packages/http-client-csharp/emitter/test/Unit/utils/test-util.ts b/packages/http-client-csharp/emitter/test/Unit/utils/test-util.ts
index 3b6d60db3ca..53ea0b15f77 100644
--- a/packages/http-client-csharp/emitter/test/Unit/utils/test-util.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/utils/test-util.ts
@@ -1,15 +1,17 @@
 import { AzureCoreTestLibrary } from "@azure-tools/typespec-azure-core/testing";
 import type { CreateSdkContextOptions } from "@azure-tools/typespec-client-generator-core";
 import { SdkTestLibrary } from "@azure-tools/typespec-client-generator-core/testing";
-import { CompilerOptions, EmitContext, Program } from "@typespec/compiler";
-import { createTestHost, TestHost } from "@typespec/compiler/testing";
+import type { CompilerOptions, EmitContext, Program } from "@typespec/compiler";
+import type { TestHost } from "@typespec/compiler/testing";
+import { createTestHost } from "@typespec/compiler/testing";
 import { HttpTestLibrary } from "@typespec/http/testing";
 import { RestTestLibrary } from "@typespec/rest/testing";
 import { VersioningTestLibrary } from "@typespec/versioning/testing";
 import { XmlTestLibrary } from "@typespec/xml/testing";
 import { LoggerLevel } from "../../../src/lib/logger-level.js";
-import { CSharpEmitterOptions } from "../../../src/options.js";
-import { createCSharpEmitterContext, CSharpEmitterContext } from "../../../src/sdk-context.js";
+import type { CSharpEmitterOptions } from "../../../src/options.js";
+import type { CSharpEmitterContext } from "../../../src/sdk-context.js";
+import { createCSharpEmitterContext } from "../../../src/sdk-context.js";
 
 export async function createEmitterTestHost(): Promise<TestHost> {
   return createTestHost({
diff --git a/packages/http-client-csharp/emitter/test/Unit/validate-dotnet-sdk.test.ts b/packages/http-client-csharp/emitter/test/Unit/validate-dotnet-sdk.test.ts
index 37d801200b1..f8a080c51ed 100644
--- a/packages/http-client-csharp/emitter/test/Unit/validate-dotnet-sdk.test.ts
+++ b/packages/http-client-csharp/emitter/test/Unit/validate-dotnet-sdk.test.ts
@@ -1,9 +1,10 @@
 vi.resetModules();
 
-import { Diagnostic, Program } from "@typespec/compiler";
-import { TestHost } from "@typespec/compiler/testing";
+import type { Diagnostic, Program } from "@typespec/compiler";
+import type { TestHost } from "@typespec/compiler/testing";
 import { strictEqual } from "assert";
-import { beforeEach, describe, expect, it, Mock, vi } from "vitest";
+import type { Mock } from "vitest";
+import { beforeEach, describe, expect, it, vi } from "vitest";
 import { execAsync } from "../../src/lib/exec-utils.js";
 import {
   createCSharpSdkContext,
diff --git a/packages/http-client-csharp/emitter/tsconfig.json b/packages/http-client-csharp/emitter/tsconfig.json
index 5bec36bfff7..c6423567066 100644
--- a/packages/http-client-csharp/emitter/tsconfig.json
+++ b/packages/http-client-csharp/emitter/tsconfig.json
@@ -1,7 +1,8 @@
 {
   "extends": "../../../tsconfig.base.json",
   "compilerOptions": {
-    "noEmit": true
+    "noEmit": true,
+    "verbatimModuleSyntax": true
   },
   "include": ["src/**/*.ts", "test/**/*.ts", "vitest.config.ts", "../generated-defs/**/*.ts"]
 }