fix(coding-agent): use native clipboard text copy on desktop closes #2347

packages/coding-agent/src/modes/interactive/interactive-mode.ts

@@ -1988,7 +1988,7 @@ export class InteractiveMode {
 				return;
 			}
 			if (text === "/copy") {
-				this.handleCopyCommand();
+				await this.handleCopyCommand();
 				this.editor.setText("");
 				return;
 			}
@@ -4064,7 +4064,7 @@ export class InteractiveMode {
 		}
 	}
 
-	private handleCopyCommand(): void {
+	private async handleCopyCommand(): Promise<void> {
 		const text = this.session.getLastAssistantText();
 		if (!text) {
 			this.showError("No agent messages to copy yet.");
@@ -4072,7 +4072,7 @@ export class InteractiveMode {
 		}
 
 		try {
-			copyToClipboard(text);
+			await copyToClipboard(text);
 			this.showStatus("Copied last agent message to clipboard");
 		} catch (error) {
 			this.showError(error instanceof Error ? error.message : String(error));

packages/coding-agent/src/utils/clipboard-native.ts

@@ -1,6 +1,7 @@
 import { createRequire } from "module";
 
 export type ClipboardModule = {
+	setText: (text: string) => Promise<void>;
 	hasImage: () => boolean;
 	getImageBinary: () => Promise<Array<number>>;
 };

packages/coding-agent/src/utils/clipboard.ts

@@ -1,6 +1,7 @@
 import { execSync, spawn } from "child_process";
 import { platform } from "os";
 import { isWaylandSession } from "./clipboard-image.js";
+import { clipboard } from "./clipboard-native.js";
 
 type NativeClipboardExecOptions = {
 	input: string;
@@ -16,11 +17,20 @@ function copyToX11Clipboard(options: NativeClipboardExecOptions): void {
 	}
 }
 
-export function copyToClipboard(text: string): void {
+export async function copyToClipboard(text: string): Promise<void> {
 	// Always emit OSC 52 - works over SSH/mosh, harmless locally
 	const encoded = Buffer.from(text).toString("base64");
 	process.stdout.write(`\x1b]52;c;${encoded}\x07`);
 
+	try {
+		if (clipboard) {
+			await clipboard.setText(text);
+			return;
+		}
+	} catch {
+		// Fall through to platform-specific clipboard tools.
+	}
+
 	// Also try native tools (best effort for local sessions)
 	const p = platform();
 	const options: NativeClipboardExecOptions = { input: text, timeout: 5000, stdio: ["pipe", "ignore", "ignore"] };