feat: add /cd command to change working directory

src-tauri/src/commands.rs

@@ -105,6 +105,51 @@ pub async fn get_usage_stats(
     manager.get_usage_stats(&conversation_id)
 }
 
+#[tauri::command]
+pub async fn validate_directory(path: String, current_dir: Option<String>) -> Result<String, String> {
+    use std::path::Path;
+
+    let path = Path::new(&path);
+
+    // Expand ~ to home directory
+    let expanded_path = if path.starts_with("~") {
+        if let Some(home) = std::env::var_os("HOME") {
+            let home_path = Path::new(&home);
+            if path == Path::new("~") {
+                home_path.to_path_buf()
+            } else {
+                home_path.join(path.strip_prefix("~").unwrap())
+            }
+        } else {
+            return Err("Could not determine home directory".to_string());
+        }
+    } else if path.is_relative() {
+        // Handle relative paths (., .., or any relative path) by resolving against current_dir
+        if let Some(ref cwd) = current_dir {
+            Path::new(cwd).join(path)
+        } else {
+            path.to_path_buf()
+        }
+    } else {
+        path.to_path_buf()
+    };
+
+    // Check if the path exists and is a directory
+    if !expanded_path.exists() {
+        return Err(format!("Directory does not exist: {}", expanded_path.display()));
+    }
+
+    if !expanded_path.is_dir() {
+        return Err(format!("Path is not a directory: {}", expanded_path.display()));
+    }
+
+    // Return the canonicalized (absolute) path
+    expanded_path
+        .canonicalize()
+        .map(|p| p.to_string_lossy().to_string())
+        .map_err(|e| format!("Failed to resolve path: {}", e))
+}
+
 #[tauri::command]
 pub async fn load_saved_achievements(app: AppHandle) -> Result<Vec<AchievementUnlockedEvent>, String> {
     use chrono::Utc;

src-tauri/src/config.rs

@@ -22,6 +22,9 @@ pub struct ClaudeStartOptions {
 
     #[serde(default)]
     pub skip_greeting: bool,
+
+    #[serde(default)]
+    pub resume_session_id: Option<String>,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]

src-tauri/src/lib.rs

@@ -53,6 +53,7 @@ pub fn run() {
             send_notify_send,
             send_wsl_notification,
             send_vbs_notification,
+            validate_directory,
         ])
         .run(tauri::generate_context!())
         .expect("error while running tauri application");

src-tauri/src/wsl_bridge.rs

@@ -195,6 +195,13 @@ impl WslBridge {
                 cmd.args(["--mcp-config", mcp_path]);
             }
 
+            // Add resume flag if session ID provided
+            if let Some(ref session_id) = options.resume_session_id {
+                if !session_id.is_empty() {
+                    cmd.args(["--resume", session_id]);
+                }
+            }
+
             cmd.current_dir(working_dir);
 
             // Set API key as environment variable if specified
@@ -251,6 +258,13 @@ impl WslBridge {
                 claude_cmd.push_str(&format!(" --mcp-config '{}'", mcp_path));
             }
 
+            // Add resume flag if session ID provided
+            if let Some(ref session_id) = options.resume_session_id {
+                if !session_id.is_empty() {
+                    claude_cmd.push_str(&format!(" --resume '{}'", session_id));
+                }
+            }
+
             // Use bash -lc to load login profile (ensures PATH includes claude)
             cmd.args(["-e", "bash", "-lc", &claude_cmd]);
 

src/lib/commands/slashCommands.ts

@@ -11,6 +11,71 @@ export interface SlashCommand {
   execute: (args: string) => Promise<void> | void;
 }
 
+async function changeDirectory(path: string): Promise<void> {
+  const conversationId = get(claudeStore.activeConversationId);
+  if (!conversationId) {
+    claudeStore.addLine("error", "No active conversation");
+    return;
+  }
+
+  if (!path.trim()) {
+    const currentDir = get(claudeStore.currentWorkingDirectory);
+    claudeStore.addLine("system", `Current directory: ${currentDir}`);
+    return;
+  }
+
+  try {
+    characterState.setState("thinking");
+    claudeStore.addLine("system", `Changing directory to: ${path}`);
+
+    const currentDir = get(claudeStore.currentWorkingDirectory);
+    const validatedPath = await invoke<string>("validate_directory", { path, currentDir });
+
+    // Capture conversation history before disconnecting
+    const conversationHistory = claudeStore.getConversationHistory();
+
+    await invoke("stop_claude", { conversationId });
+
+    // Wait for clean shutdown
+    await new Promise((resolve) => setTimeout(resolve, 500));
+
+    claudeStore.setWorkingDirectory(validatedPath);
+
+    setSkipNextGreeting(true);
+
+    await invoke("start_claude", {
+      conversationId,
+      options: {
+        working_dir: validatedPath,
+      },
+    });
+
+    // Wait for connection to establish
+    await new Promise((resolve) => setTimeout(resolve, 1000));
+
+    // Restore context if there was conversation history
+    if (conversationHistory) {
+      const contextMessage = `[CONTEXT RESTORATION]
+I just changed the working directory from ${currentDir} to ${validatedPath}. Here's our conversation so far:
+
+${conversationHistory}
+
+Please continue where we left off. You are now operating in the new directory.`;
+
+      await invoke("send_prompt", {
+        conversationId,
+        message: contextMessage,
+      });
+    }
+
+    claudeStore.addLine("system", `Changed directory to: ${validatedPath}`);
+    characterState.setState("idle");
+  } catch (error) {
+    claudeStore.addLine("error", `Failed to change directory: ${error}`);
+    characterState.setTemporaryState("error", 3000);
+  }
+}
+
 async function startNewConversation(): Promise<void> {
   const conversationId = get(claudeStore.activeConversationId);
   if (!conversationId) {
@@ -48,6 +113,12 @@ async function startNewConversation(): Promise<void> {
 }
 
 export const slashCommands: SlashCommand[] = [
+  {
+    name: "cd",
+    description: "Change the working directory",
+    usage: "/cd <path>",
+    execute: changeDirectory,
+  },
   {
     name: "clear",
     description: "Clear the terminal display (keeps conversation context)",