diff --git a/messages/shared.md b/messages/shared.md
index af9268c..a9c7f45 100644
--- a/messages/shared.md
+++ b/messages/shared.md
@@ -1,3 +1,11 @@
 # flags.result-format.summary
 
 Format of the test run results.
+
+# flags.output-dir.summary
+
+Directory to write the test results to.
+
+# flags.output-dir.description
+
+If test run is complete, write the results to the specified directory. If the tests are still running, the test results will not be written.
diff --git a/src/commands/agent/test/results.ts b/src/commands/agent/test/results.ts
index 5443fc4..7fb2ef5 100644
--- a/src/commands/agent/test/results.ts
+++ b/src/commands/agent/test/results.ts
@@ -7,8 +7,9 @@
 
 import { SfCommand, Flags } from '@salesforce/sf-plugins-core';
 import { Messages } from '@salesforce/core';
-import { AgentTester, AgentTestDetailsResponse, humanFormat } from '@salesforce/agents';
-import { resultFormatFlag } from '../../../flags.js';
+import { AgentTester, AgentTestDetailsResponse } from '@salesforce/agents';
+import { resultFormatFlag, testOutputDirFlag } from '../../../flags.js';
+import { handleTestResults } from '../../../handleTestResults.js';
 
 Messages.importMessagesDirectoryFromMetaUrl(import.meta.url);
 const messages = Messages.loadMessages('@salesforce/plugin-agent', 'agent.test.results');
@@ -30,6 +31,7 @@ export default class AgentTestResults extends SfCommand<AgentTestResultsResult>
       required: true,
     }),
     'result-format': resultFormatFlag(),
+    'output-dir': testOutputDirFlag(),
   };
 
   public async run(): Promise<AgentTestResultsResult> {
@@ -37,9 +39,13 @@ export default class AgentTestResults extends SfCommand<AgentTestResultsResult>
 
     const agentTester = new AgentTester(flags['target-org'].getConnection(flags['api-version']));
     const response = await agentTester.details(flags['job-id']);
-    if (flags['result-format'] === 'human') {
-      this.log(await humanFormat(flags['job-id'], response));
-    }
+    await handleTestResults({
+      id: flags['job-id'],
+      format: flags['result-format'],
+      results: response,
+      jsonEnabled: this.jsonEnabled(),
+      outputDir: flags['output-dir'],
+    });
     return response;
   }
 }
diff --git a/src/commands/agent/test/resume.ts b/src/commands/agent/test/resume.ts
index 2087612..4fbd2de 100644
--- a/src/commands/agent/test/resume.ts
+++ b/src/commands/agent/test/resume.ts
@@ -7,10 +7,11 @@
 
 import { SfCommand, Flags } from '@salesforce/sf-plugins-core';
 import { Messages } from '@salesforce/core';
-import { AgentTester, humanFormat } from '@salesforce/agents';
+import { AgentTester } from '@salesforce/agents';
 import { AgentTestCache } from '../../../agentTestCache.js';
 import { TestStages } from '../../../testStages.js';
-import { resultFormatFlag } from '../../../flags.js';
+import { resultFormatFlag, testOutputDirFlag } from '../../../flags.js';
+import { handleTestResults } from '../../../handleTestResults.js';
 
 Messages.importMessagesDirectoryFromMetaUrl(import.meta.url);
 const messages = Messages.loadMessages('@salesforce/plugin-agent', 'agent.test.resume');
@@ -48,6 +49,7 @@ export default class AgentTestResume extends SfCommand<AgentTestResumeResult> {
       description: messages.getMessage('flags.wait.description'),
     }),
     'result-format': resultFormatFlag(),
+    'output-dir': testOutputDirFlag(),
   };
 
   public async run(): Promise<AgentTestResumeResult> {
@@ -68,9 +70,13 @@ export default class AgentTestResume extends SfCommand<AgentTestResumeResult> {
 
     mso.stop();
 
-    if (response && flags['result-format'] === 'human') {
-      this.log(await humanFormat(name ?? aiEvaluationId, response));
-    }
+    await handleTestResults({
+      id: aiEvaluationId,
+      format: flags['result-format'],
+      results: response,
+      jsonEnabled: this.jsonEnabled(),
+      outputDir: flags['output-dir'],
+    });
 
     return {
       status: 'COMPLETED',
diff --git a/src/commands/agent/test/run.ts b/src/commands/agent/test/run.ts
index 1b2a2c9..51f9da5 100644
--- a/src/commands/agent/test/run.ts
+++ b/src/commands/agent/test/run.ts
@@ -7,11 +7,12 @@
 
 import { SfCommand, Flags } from '@salesforce/sf-plugins-core';
 import { Messages } from '@salesforce/core';
-import { AgentTester, humanFormat } from '@salesforce/agents';
+import { AgentTester } from '@salesforce/agents';
 import { colorize } from '@oclif/core/ux';
-import { resultFormatFlag } from '../../../flags.js';
+import { resultFormatFlag, testOutputDirFlag } from '../../../flags.js';
 import { AgentTestCache } from '../../../agentTestCache.js';
 import { TestStages } from '../../../testStages.js';
+import { handleTestResults } from '../../../handleTestResults.js';
 
 Messages.importMessagesDirectoryFromMetaUrl(import.meta.url);
 const messages = Messages.loadMessages('@salesforce/plugin-agent', 'agent.test.run');
@@ -47,6 +48,7 @@ export default class AgentTestRun extends SfCommand<AgentTestRunResult> {
       description: messages.getMessage('flags.wait.description'),
     }),
     'result-format': resultFormatFlag(),
+    'output-dir': testOutputDirFlag(),
   };
 
   public async run(): Promise<AgentTestRunResult> {
@@ -69,9 +71,14 @@ export default class AgentTestRun extends SfCommand<AgentTestRunResult> {
 
       mso.stop();
 
-      if (detailsResponse && flags['result-format'] === 'human') {
-        this.log(await humanFormat(flags.name, detailsResponse));
-      }
+      await handleTestResults({
+        id: response.aiEvaluationId,
+        format: flags['result-format'],
+        results: detailsResponse,
+        jsonEnabled: this.jsonEnabled(),
+        outputDir: flags['output-dir'],
+      });
+
       return {
         status: 'COMPLETED',
         aiEvaluationId: response.aiEvaluationId,
diff --git a/src/flags.ts b/src/flags.ts
index 418e308..0478cbf 100644
--- a/src/flags.ts
+++ b/src/flags.ts
@@ -14,9 +14,15 @@ export const resultFormatFlag = Flags.option({
   options: [
     'json',
     'human',
+    'junit',
     // 'tap',
-    // 'junit'
   ] as const,
   default: 'human',
   summary: messages.getMessage('flags.result-format.summary'),
 });
+
+export const testOutputDirFlag = Flags.custom<string>({
+  char: 'f',
+  description: messages.getMessage('flags.output-dir.description'),
+  summary: messages.getMessage('flags.output-dir.summary'),
+});
diff --git a/src/handleTestResults.ts b/src/handleTestResults.ts
new file mode 100644
index 0000000..38b784d
--- /dev/null
+++ b/src/handleTestResults.ts
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2024, salesforce.com, inc.
+ * All rights reserved.
+ * Licensed under the BSD 3-Clause license.
+ * For full license text, see LICENSE.txt file in the repo root or https://opensource.org/licenses/BSD-3-Clause
+ */
+import { writeFile, mkdir } from 'node:fs/promises';
+import { AgentTestDetailsResponse, jsonFormat, humanFormat, junitFormat } from '@salesforce/agents';
+import { Ux } from '@salesforce/sf-plugins-core/Ux';
+
+async function writeFileToDir(outputDir: string, fileName: string, content: string): Promise<void> {
+  // if directory doesn't exist, create it
+  await mkdir(outputDir, { recursive: true });
+
+  await writeFile(`${outputDir}/${fileName}`, content);
+}
+
+export async function handleTestResults({
+  id,
+  format,
+  results,
+  jsonEnabled,
+  outputDir,
+}: {
+  id: string;
+  format: 'human' | 'json' | 'junit';
+  results: AgentTestDetailsResponse | undefined;
+  jsonEnabled: boolean;
+  outputDir?: string;
+}): Promise<void> {
+  if (!results) {
+    // do nothing since there are no results to handle
+    return;
+  }
+
+  const ux = new Ux({ jsonEnabled });
+
+  if (format === 'human') {
+    const formatted = await humanFormat(results);
+    ux.log(formatted);
+    if (outputDir) {
+      await writeFileToDir(outputDir, `test-result-${id}.txt`, formatted);
+    }
+  }
+
+  if (format === 'json') {
+    const formatted = await jsonFormat(results);
+    ux.log(formatted);
+    if (outputDir) {
+      await writeFileToDir(outputDir, `test-result-${id}.json`, formatted);
+    }
+  }
+
+  if (format === 'junit') {
+    const formatted = await junitFormat(results);
+    ux.log(formatted);
+    if (outputDir) {
+      await writeFileToDir(outputDir, `test-result-${id}.xml`, formatted);
+    }
+  }
+}