diff --git a/.config/opencode/plugins/tmux-panes.ts b/.config/opencode/plugins/tmux-panes.ts
index 236a0dc..0db57a4 100644
--- a/.config/opencode/plugins/tmux-panes.ts
+++ b/.config/opencode/plugins/tmux-panes.ts
@@ -30,7 +30,7 @@ const plugin: Plugin = async (ctx) => {
 
 	const sessions = new Map<string, string>() // sessionId → tmux paneId
 	const sourcePaneId = getCurrentPaneId()
-	const serverUrl = ctx.serverUrl?.toString() ?? ""
+	const serverUrl = (ctx.serverUrl?.toString() ?? "").replace(/\/$/, "")
 	log(`plugin init — serverUrl=${serverUrl} sourcePaneId=${sourcePaneId}`)
 
 	// Ordered list of pane IDs in the right column.
@@ -50,7 +50,7 @@ const plugin: Plugin = async (ctx) => {
 				// Wrap the attach command: on failure, show the error and keep the
 			// pane open for 30 s so we can read it before it disappears.
 			const attachCmd = `opencode attach ${serverUrl} --session ${sessionId}`
-			const cmd = `bash -c '${attachCmd}; _exit=$?; echo "--- exit: $_exit ---" >> ${DEBUG_LOG}; [ $_exit -ne 0 ] && sleep 30'`
+			const cmd = `bash -c '${attachCmd}; echo "--- exit: $? ---" >> ${DEBUG_LOG}; sleep 30'`
 			log(`spawning pane — cmd: ${attachCmd}`)
 
 				let args: string[]