diff --git a/src/services/task-dispatch-service.ts b/src/services/task-dispatch-service.ts
index d1cdf13..aa24a53 100644
--- a/src/services/task-dispatch-service.ts
+++ b/src/services/task-dispatch-service.ts
@@ -94,7 +94,8 @@ export class TaskDispatchService {
         const contextContent = await this.assembleContext(file, taskId);
         const contextFilePath = await this.writeContextFile(taskId, contextContent);
 
-        await this.createTmuxSession(tmux, sessionName, agentConfig, contextFilePath);
+        const workingDir = this.getWorkingDir(file);
+        await this.createTmuxSession(tmux, sessionName, agentConfig, contextFilePath, workingDir);
         await this.openTerminal(sessionName);
       }
     } catch (error) {
@@ -227,6 +228,22 @@ export class TaskDispatchService {
     return taskId ? String(taskId) : null;
   }
 
+  /**
+   * Resolve the working directory for a task session.
+   * Priority: `repo` frontmatter → defaultWorkingDir setting → home dir.
+   */
+  private getWorkingDir(file: TFile): string {
+    const cache = this.app.metadataCache.getFileCache(file);
+    const fm = cache?.frontmatter;
+    const repo = fm?.['repo'];
+    if (repo && typeof repo === 'string') return repo;
+
+    const defaultDir = this.settings.taskDispatch.defaultWorkingDir;
+    if (defaultDir) return defaultDir;
+
+    return process.env.HOME ?? '/tmp';
+  }
+
   private async assembleContext(file: TFile, taskId: string): Promise<string> {
     // Read note body and strip frontmatter
     const rawContent = await this.app.vault.read(file);
@@ -297,9 +314,10 @@ export class TaskDispatchService {
     tmux: string,
     sessionName: string,
     agentConfig: AgentConfig,
-    contextFilePath: string
+    contextFilePath: string,
+    workingDir: string
   ): Promise<void> {
-    await execAsync(`${tmux} new-session -d -s ${this.shellEscape(sessionName)}`);
+    await execAsync(`${tmux} new-session -d -s ${this.shellEscape(sessionName)} -c ${this.shellEscape(workingDir)}`);
 
     const agentCommand = `${agentConfig.command} ${agentConfig.contextFlag} ${this.shellEscape(contextFilePath)}`;
     await execAsync(
diff --git a/src/types/settings.ts b/src/types/settings.ts
index 2b139dc..e097c64 100644
--- a/src/types/settings.ts
+++ b/src/types/settings.ts
@@ -59,6 +59,7 @@ export const DEFAULT_SETTINGS: OpenAugiSettings = {
   taskDispatch: {
     terminalApp: 'iterm2',
     tmuxPath: '',
+    defaultWorkingDir: '',
     agents: [
       {
         id: 'claude-code',
diff --git a/src/types/task-dispatch.ts b/src/types/task-dispatch.ts
index cb57d57..fb09f78 100644
--- a/src/types/task-dispatch.ts
+++ b/src/types/task-dispatch.ts
@@ -12,6 +12,7 @@ export type TerminalApp = 'iterm2' | 'terminal-app';
 export interface TaskDispatchSettings {
   terminalApp: TerminalApp;
   tmuxPath: string; // absolute path to tmux binary; empty = auto-detect
+  defaultWorkingDir: string; // directory Claude launches in; overridden by `repo` frontmatter
   agents: AgentConfig[];
   defaultAgent: string;
   contextTempDir: string;
diff --git a/src/ui/settings-tab.ts b/src/ui/settings-tab.ts
index 0bae61d..cd60dc1 100644
--- a/src/ui/settings-tab.ts
+++ b/src/ui/settings-tab.ts
@@ -399,6 +399,23 @@ export class OpenAugiSettingTab extends PluginSettingTab {
         })
       );
 
+    new Setting(containerEl)
+      .setName('Default working directory')
+      .setDesc('Directory the agent launches in. Override per-task with `repo` in frontmatter.')
+      .addText(text => {
+        text
+          .setPlaceholder('~/projects')
+          .setValue(this.plugin.settings.taskDispatch.defaultWorkingDir);
+        text.inputEl.addEventListener('blur', async () => {
+          const value = text.getValue().trim();
+          if (value !== this.plugin.settings.taskDispatch.defaultWorkingDir) {
+            this.plugin.settings.taskDispatch.defaultWorkingDir = value;
+            await this.plugin.saveSettings();
+          }
+        });
+        return text;
+      });
+
     new Setting(containerEl)
       .setName('Default agent')
       .setDesc('Agent to use when task note does not specify one')