diff --git a/package.json b/package.json
index d6ef31a..f91eab4 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,7 @@
     "build-runner": "tsc",
     "release-build": "tsx release-build.ts",
     "web-codegen-scorer": "tsx ./runner/bin/cli.ts",
+    "wcs": "pnpm -s web-codegen-scorer",
     "eval": "pnpm web-codegen-scorer eval",
     "init": "pnpm web-codegen-scorer init",
     "report": "cd report-app && CODEGEN_REPORTS_DIR=../.web-codegen-scorer/reports pnpm start",
diff --git a/runner/eval-cli.ts b/runner/eval-cli.ts
index 6e8ae00..700b93b 100644
--- a/runner/eval-cli.ts
+++ b/runner/eval-cli.ts
@@ -119,7 +119,12 @@ function builder(argv: Argv): Argv<Options> {
     })
     .option('logging', {
       type: 'string',
-      default: 'dynamic' as const,
+      default:
+        process.env['CI'] === '1'
+          ? ('text-only' as const)
+          : ('dynamic' as const),
+      defaultDescription: '`dynamic` (or `text-only` when `CI=1`)',
+      requiresArg: true,
       choices: ['text-only', 'dynamic'] as const,
       description: 'Type of logging to use during the evaluation process',
     })
diff --git a/runner/orchestration/generate.ts b/runner/orchestration/generate.ts
index 86a81bb..9f6a802 100644
--- a/runner/orchestration/generate.ts
+++ b/runner/orchestration/generate.ts
@@ -175,9 +175,9 @@ export async function generateCodeAndAssess(options: {
               stack: e instanceof Error ? e.stack : undefined,
             });
 
-            let details = `  Error: ${e}`;
+            let details = `Error: ${e}`;
             if (e instanceof Error && e.stack) {
-              details += e.stack;
+              details += `\nStack: ${e.stack}`;
             }
 
             progress.log(
diff --git a/runner/progress/dynamic-progress-logger.ts b/runner/progress/dynamic-progress-logger.ts
index e3a97b5..da950e5 100644
--- a/runner/progress/dynamic-progress-logger.ts
+++ b/runner/progress/dynamic-progress-logger.ts
@@ -6,6 +6,7 @@ import {
   ProgressType,
   progressTypeToIcon,
 } from './progress-logger.js';
+import { redX } from '../reporting/format.js';
 
 const PREFIX_WIDTH = 20;
 
@@ -17,6 +18,11 @@ export class DynamicProgressLogger implements ProgressLogger {
   private spinnerFrames = ['⠋', '⠙', '⠹', '⠸', '⠼', '⠴', '⠦', '⠧', '⠇', '⠏'];
   private currentSpinnerFrame = 0;
   private spinnerInterval: ReturnType<typeof setInterval> | undefined;
+  private errors: {
+    prompt: RootPromptDefinition;
+    message: string;
+    details?: string;
+  }[] = [];
 
   initialize(total: number): void {
     this.finalize();
@@ -72,9 +78,22 @@ export class DynamicProgressLogger implements ProgressLogger {
     this.wrapper?.stop();
     this.pendingBars.clear();
     this.wrapper = this.totalBar = this.spinnerInterval = undefined;
+
+    for (const error of this.errors) {
+      let message = `${redX()} [${error.prompt.name}] ${error.message}`;
+      if (error.details) {
+        message += `\n  ${error.details}`;
+      }
+      console.error(message);
+    }
   }
 
-  log(prompt: RootPromptDefinition, type: ProgressType, message: string): void {
+  log(
+    prompt: RootPromptDefinition,
+    type: ProgressType,
+    message: string,
+    details?: string
+  ): void {
     if (!this.wrapper || !this.totalBar) {
       return;
     }
@@ -92,6 +111,11 @@ export class DynamicProgressLogger implements ProgressLogger {
       return;
     }
 
+    // Capture errors for static printing once the dynamic progress is hidden.
+    if (type === 'error') {
+      this.errors.push({ prompt, message, details });
+    }
+
     // Pad/trim the name so they're all the same length.
     const name = this.trimString(
       prompt.name.padEnd(PREFIX_WIDTH, ' '),