diff --git a/src/commands/list.ts b/src/commands/list.ts
index d19a6b1..c96567d 100644
--- a/src/commands/list.ts
+++ b/src/commands/list.ts
@@ -31,7 +31,7 @@ function renderSessions(
     const status = statusMap.get(s) ?? "idle"
     const { icon, color: bc } = styles[status]
     const maxPrompt = cols - prefixWidth
-    const truncated = maxPrompt < 1 ? "" : maxPrompt > 3 && prompt.length > maxPrompt ? prompt.slice(0, maxPrompt - 3) + "..." : prompt
+    const truncated = maxPrompt < 1 ? "" : prompt.length <= maxPrompt ? prompt : maxPrompt > 3 ? prompt.slice(0, maxPrompt - 3) + "..." : prompt.slice(0, maxPrompt)
     console.log(`${icon} ${bc}${s.branch.padEnd(branchWidth)}${reset}  ${dim}${truncated}${reset}`)
   }
 }
diff --git a/src/state.ts b/src/state.ts
index bd174a5..0e3944e 100644
--- a/src/state.ts
+++ b/src/state.ts
@@ -101,7 +101,7 @@ async function loadGlobal(): Promise<GlobalState> {
   if (await file.exists()) {
     try {
       const data = await file.json()
-      if (data && Array.isArray(data.projects)) return data
+      if (data && Array.isArray(data.projects)) return { projects: data.projects.filter((p: unknown) => typeof p === "string") }
     } catch {}
   }
   return { projects: [] }
@@ -117,18 +117,27 @@ export function normalizePath(dir: string): string {
   return resolve(dir.replace(/^~(?=\/|$)/, homedir()))
 }
 
-/** Register a project directory in the global state. */
-export async function registerProject(repoRoot: string): Promise<void> {
-  const normalized = normalizePath(repoRoot)
+async function registerPaths(paths: string[]): Promise<void> {
+  if (paths.length === 0) return
   await withGlobalLock(async () => {
     const gs = await loadGlobal()
-    if (!gs.projects.includes(normalized)) {
-      gs.projects.push(normalized)
-      await saveGlobal(gs)
+    const existing = new Set(gs.projects)
+    let changed = false
+    for (const p of paths) {
+      if (!existing.has(p)) {
+        gs.projects.push(p)
+        changed = true
+      }
     }
+    if (changed) await saveGlobal(gs)
   })
 }
 
+/** Register a project directory in the global state. */
+export async function registerProject(repoRoot: string): Promise<void> {
+  await registerPaths([normalizePath(repoRoot)])
+}
+
 /** Remove a project directory from the global state. */
 export async function unregisterProject(dir: string): Promise<boolean> {
   const target = normalizePath(dir)
@@ -165,26 +174,11 @@ export async function scanAndRegister(dir: string, maxDepth = 5): Promise<string
     }
 
     const children = entries.filter(e => e.isDirectory() && !e.isSymbolicLink() && !e.name.startsWith(".") && e.name !== "node_modules")
-    await Promise.all(children.map(entry => walk(join(d, entry.name), depth + 1)))
+    for (const entry of children) await walk(join(d, entry.name), depth + 1)
   }
 
   await walk(root, 0)
-
-  if (found.length > 0) {
-    await withGlobalLock(async () => {
-      const gs = await loadGlobal()
-      const existing = new Set(gs.projects)
-      let changed = false
-      for (const p of found) {
-        if (!existing.has(p)) {
-          gs.projects.push(p)
-          changed = true
-        }
-      }
-      if (changed) await saveGlobal(gs)
-    })
-  }
-
+  await registerPaths(found)
   return found
 }