diff --git a/packages/safe-ds-lang/src/language/runner/safe-ds-runner.ts b/packages/safe-ds-lang/src/language/runner/safe-ds-runner.ts
index d7fc85463..fae5126d7 100644
--- a/packages/safe-ds-lang/src/language/runner/safe-ds-runner.ts
+++ b/packages/safe-ds-lang/src/language/runner/safe-ds-runner.ts
@@ -10,6 +10,7 @@ import {
     ProgramCodeMap,
     PythonServerMessage,
     RuntimeErrorBacktraceFrame,
+    RuntimeErrorMessage,
 } from './messages.js';
 import { BasicSourceMapConsumer, SourceMapConsumer } from 'source-map';
 import treeKill from 'tree-kill';
@@ -56,8 +57,60 @@ export class SafeDsRunner {
             outputInfo(_value: string) {},
             displayError(_value: string) {},
         };
+        this.registerMessageLoggingCallbacks();
     }
 
+    /* c8 ignore start */
+    private registerMessageLoggingCallbacks() {
+        this.addMessageCallback((message) => {
+            this.logging.outputInfo(
+                `Placeholder value is (${message.id}): ${message.data.name} of type ${message.data.type} = ${message.data.value}`,
+            );
+        }, 'placeholder_value');
+        this.addMessageCallback((message) => {
+            this.logging.outputInfo(
+                `Placeholder was calculated (${message.id}): ${message.data.name} of type ${message.data.type}`,
+            );
+            const execInfo = this.getExecutionContext(message.id)!;
+            execInfo.calculatedPlaceholders.set(message.data.name, message.data.type);
+            // this.sendMessageToPythonServer(
+            //    messages.createPlaceholderQueryMessage(message.id, message.data.name),
+            //);
+        }, 'placeholder_type');
+        this.addMessageCallback((message) => {
+            this.logging.outputInfo(`Runner-Progress (${message.id}): ${message.data}`);
+        }, 'runtime_progress');
+        this.addMessageCallback(async (message) => {
+            let readableStacktraceSafeDs: string[] = [];
+            const execInfo = this.getExecutionContext(message.id)!;
+            const readableStacktracePython = await Promise.all(
+                (<RuntimeErrorMessage>message).data.backtrace.map(async (frame) => {
+                    const mappedFrame = await this.tryMapToSafeDSSource(message.id, frame);
+                    if (mappedFrame) {
+                        readableStacktraceSafeDs.push(
+                            `\tat ${URI.file(execInfo.path)}#${mappedFrame.line} (${execInfo.path} line ${
+                                mappedFrame.line
+                            })`,
+                        );
+                        return `\tat ${frame.file} line ${frame.line} (mapped to '${mappedFrame.file}' line ${mappedFrame.line})`;
+                    }
+                    return `\tat ${frame.file} line ${frame.line}`;
+                }),
+            );
+            this.logging.outputError(
+                `Runner-RuntimeError (${message.id}): ${
+                    (<RuntimeErrorMessage>message).data.message
+                } \n${readableStacktracePython.join('\n')}`,
+            );
+            this.logging.outputError(
+                `Safe-DS Error (${message.id}): ${(<RuntimeErrorMessage>message).data.message} \n${readableStacktraceSafeDs
+                    .reverse()
+                    .join('\n')}`,
+            );
+        }, 'runtime_error');
+    }
+    /* c8 ignore stop */
+
     /**
      * Change the command to start the runner process. This will not cause the runner process to restart, if it is already running.
      *
@@ -244,7 +297,7 @@ export class SafeDsRunner {
      * @param executionId Id that uniquely identifies the execution that produced this stack frame
      * @param frame Stack frame from the python execution
      */
-    public async tryMapToSafeDSSource(
+    private async tryMapToSafeDSSource(
         executionId: string,
         frame: RuntimeErrorBacktraceFrame | undefined,
     ): Promise<RuntimeErrorBacktraceFrame | undefined> {
diff --git a/packages/safe-ds-lang/src/language/safe-ds-module.ts b/packages/safe-ds-lang/src/language/safe-ds-module.ts
index 0f76c9700..a3f8d69e4 100644
--- a/packages/safe-ds-lang/src/language/safe-ds-module.ts
+++ b/packages/safe-ds-lang/src/language/safe-ds-module.ts
@@ -78,6 +78,9 @@ export type SafeDsAddedServices = {
     purity: {
         PurityComputer: SafeDsPurityComputer;
     };
+    runtime: {
+        Runner: SafeDsRunner;
+    };
     typing: {
         ClassHierarchy: SafeDsClassHierarchy;
         CoreTypes: SafeDsCoreTypes;
@@ -89,9 +92,6 @@ export type SafeDsAddedServices = {
         PackageManager: SafeDsPackageManager;
         SettingsProvider: SafeDsSettingsProvider;
     };
-    runtime: {
-        Runner: SafeDsRunner;
-    };
 };
 
 /**
@@ -151,6 +151,9 @@ export const SafeDsModule: Module<SafeDsServices, PartialLangiumServices & SafeD
         ScopeComputation: (services) => new SafeDsScopeComputation(services),
         ScopeProvider: (services) => new SafeDsScopeProvider(services),
     },
+    runtime: {
+        Runner: (services) => new SafeDsRunner(services),
+    },
     typing: {
         ClassHierarchy: (services) => new SafeDsClassHierarchy(services),
         CoreTypes: (services) => new SafeDsCoreTypes(services),
@@ -162,9 +165,6 @@ export const SafeDsModule: Module<SafeDsServices, PartialLangiumServices & SafeD
         PackageManager: (services) => new SafeDsPackageManager(services),
         SettingsProvider: (services) => new SafeDsSettingsProvider(services),
     },
-    runtime: {
-        Runner: (services) => new SafeDsRunner(services),
-    },
 };
 
 export type SafeDsSharedServices = LangiumSharedServices;
diff --git a/packages/safe-ds-vscode/src/extension/mainClient.ts b/packages/safe-ds-vscode/src/extension/mainClient.ts
index c3ceb5d4b..04874dce9 100644
--- a/packages/safe-ds-vscode/src/extension/mainClient.ts
+++ b/packages/safe-ds-vscode/src/extension/mainClient.ts
@@ -6,7 +6,7 @@ import { ast, createSafeDsServices, getModuleMembers, messages, SafeDsServices }
 import { NodeFileSystem } from 'langium/node';
 import { getSafeDSOutputChannel, initializeLog, logError, logOutput, printOutputMessage } from './output.js';
 import crypto from 'crypto';
-import { LangiumDocument, URI, AstUtils, AstNode } from 'langium';
+import { AstNode, AstUtils, LangiumDocument } from 'langium';
 import { EDAPanel } from './eda/edaPanel.ts';
 import { dumpDiagnostics } from './commands/dumpDiagnostics.js';
 import { openDiagnosticsDumps } from './commands/openDiagnosticsDumps.js';
@@ -91,63 +91,12 @@ const startLanguageClient = function (context: vscode.ExtensionContext): Languag
 };
 
 const acceptRunRequests = async function (context: vscode.ExtensionContext) {
-    // Register logging message callbacks
-    registerMessageLoggingCallbacks();
     // Register VS Code Entry Points
     registerVSCodeCommands(context);
     // Register watchers
     registerVSCodeWatchers();
 };
 
-const registerMessageLoggingCallbacks = function () {
-    services.runtime.Runner.addMessageCallback((message) => {
-        printOutputMessage(
-            `Placeholder value is (${message.id}): ${message.data.name} of type ${message.data.type} = ${message.data.value}`,
-        );
-    }, 'placeholder_value');
-    services.runtime.Runner.addMessageCallback((message) => {
-        printOutputMessage(
-            `Placeholder was calculated (${message.id}): ${message.data.name} of type ${message.data.type}`,
-        );
-        const execInfo = services.runtime.Runner.getExecutionContext(message.id)!;
-        execInfo.calculatedPlaceholders.set(message.data.name, message.data.type);
-        // services.runtime.Runner.sendMessageToPythonServer(
-        //    messages.createPlaceholderQueryMessage(message.id, message.data.name),
-        //);
-    }, 'placeholder_type');
-    services.runtime.Runner.addMessageCallback((message) => {
-        printOutputMessage(`Runner-Progress (${message.id}): ${message.data}`);
-    }, 'runtime_progress');
-    services.runtime.Runner.addMessageCallback(async (message) => {
-        let readableStacktraceSafeDs: string[] = [];
-        const execInfo = services.runtime.Runner.getExecutionContext(message.id)!;
-        const readableStacktracePython = await Promise.all(
-            (<messages.RuntimeErrorMessage>message).data.backtrace.map(async (frame) => {
-                const mappedFrame = await services.runtime.Runner.tryMapToSafeDSSource(message.id, frame);
-                if (mappedFrame) {
-                    readableStacktraceSafeDs.push(
-                        `\tat ${URI.file(execInfo.path)}#${mappedFrame.line} (${execInfo.path} line ${
-                            mappedFrame.line
-                        })`,
-                    );
-                    return `\tat ${frame.file} line ${frame.line} (mapped to '${mappedFrame.file}' line ${mappedFrame.line})`;
-                }
-                return `\tat ${frame.file} line ${frame.line}`;
-            }),
-        );
-        logOutput(
-            `Runner-RuntimeError (${message.id}): ${
-                (<messages.RuntimeErrorMessage>message).data.message
-            } \n${readableStacktracePython.join('\n')}`,
-        );
-        printOutputMessage(
-            `Safe-DS Error (${message.id}): ${(<messages.RuntimeErrorMessage>message).data.message} \n${readableStacktraceSafeDs
-                .reverse()
-                .join('\n')}`,
-        );
-    }, 'runtime_error');
-};
-
 const registerVSCodeCommands = function (context: vscode.ExtensionContext) {
     const registerCommandWithCheck = (commandId: string, callback: (...args: any[]) => Promise<any>) => {
         return vscode.commands.registerCommand(commandId, (...args: any[]) => {