src/extension/chatSessions/vscode-node/copilotCLIChatSessionsContribution.ts:1115

• The ternary condition on selectedRepository is unnecessary because selectedRepository is always undefined at this point (it's declared as undefined on line 1114). This line will always evaluate to sessionWorkspaceFolder. Consider simplifying to: const workingDirectory = sessionWorkspaceFolder;

			const workingDirectory = selectedRepository ? this.workspaceService.getWorkspaceFolder(selectedRepository) : sessionWorkspaceFolder;

src/extension/chatSessions/vscode-node/copilotCLIChatSessionsContribution.ts:1148

• When worktree creation fails at line 1148, workingDirectory may be undefined even though selectedRepository is defined. The workingDirectory variable is set at line 1115 before selectedRepository is potentially assigned (at lines 1120 or 1131). When falling back from a failed worktree creation, consider using this.workspaceService.getWorkspaceFolder(selectedRepository) to get the proper workspace folder for the repository, rather than relying on the stale workingDirectory value that was calculated before selectedRepository was known.

				return { workingDirectory, worktreeProperties: undefined, isWorkspaceFolderWithoutRepo: true, cancelled: false };