🤖 fix: support ssh workspace forks

src/node/runtime/SSHRuntime.ts

@@ -1190,21 +1190,29 @@ export class SSHRuntime extends RemoteRuntime {
         };
       }
 
-      // Clone the repo from the source workspace on the remote host.
-      // NOTE: This intentionally does not attempt to copy uncommitted changes.
-      initLogger.logStep("Cloning workspace on remote...");
-      const cloneResult = await execBuffered(
+      // Copy the source workspace on the remote host so we preserve working tree state.
+      // Avoid preserving ownership to prevent fork failures when files are owned by another user.
+      initLogger.logStep("Copying workspace on remote...");
+      const copyResult = await execBuffered(
         this,
-        `git clone --quiet ${sourceWorkspacePathArg} ${newWorkspacePathArg}`,
+        `cp -R -P ${sourceWorkspacePathArg} ${newWorkspacePathArg}`,
         {
           cwd: "/tmp",
           timeout: 300,
         }
       );
-      if (cloneResult.exitCode !== 0) {
+      if (copyResult.exitCode !== 0) {
+        try {
+          await execBuffered(this, `rm -rf ${newWorkspacePathArg}`, {
+            cwd: "/tmp",
+            timeout: 30,
+          });
+        } catch {
+          // Best-effort cleanup of partially copied workspace.
+        }
         return {
           success: false,
-          error: `Failed to clone workspace: ${cloneResult.stderr || cloneResult.stdout}`,
+          error: `Failed to copy workspace: ${copyResult.stderr || copyResult.stdout}`,
         };
       }
 

src/node/services/workspaceService.ts

@@ -1584,11 +1584,8 @@ export class WorkspaceService extends EventEmitter {
         }
       }
 
-      // Block fork for remote runtimes - creates broken workspaces
-      // Sub-agent task spawning uses a different code path (TaskService.create)
-      if (isSSHRuntime(sourceRuntimeConfig)) {
-        return Err("Forking SSH workspaces is not supported. Create a new workspace instead.");
-      }
+      // Block fork for Docker runtimes - creates broken workspaces.
+      // Sub-agent task spawning uses a different code path (TaskService.create).
       if (isDockerRuntime(sourceRuntimeConfig)) {
         return Err("Forking Docker workspaces is not supported. Create a new workspace instead.");
       }
@@ -1700,6 +1697,17 @@ export class WorkspaceService extends EventEmitter {
         forkResult
       );
 
+      if (forkResult.sourceRuntimeConfig) {
+        const allMetadataUpdated = await this.config.getAllWorkspaceMetadata();
+        const updatedMetadata = allMetadataUpdated.find((m) => m.id === sourceWorkspaceId) ?? null;
+        const sourceSession = this.sessions.get(sourceWorkspaceId);
+        if (sourceSession) {
+          sourceSession.emitMetadata(updatedMetadata);
+        } else {
+          this.emit("metadata", { workspaceId: sourceWorkspaceId, metadata: updatedMetadata });
+        }
+      }
+
       // Compute namedWorkspacePath for frontend metadata
       const namedWorkspacePath = runtime.getWorkspacePath(foundProjectPath, newName);