fix: fixes issue where the autocomplete tui dialog flickers while typing (#11641)

packages/opencode/src/cli/cmd/tui/component/prompt/autocomplete.tsx

@@ -129,6 +129,16 @@ export function Autocomplete(props: {
     return props.input().getTextRange(store.index + 1, props.input().cursorOffset)
   })
 
+  // filter() reads reactive props.value plus non-reactive cursor/text state.
+  // On keypress those can be briefly out of sync, so filter() may return an empty/partial string.
+  // Copy it into search in an effect because effects run after reactive updates have been rendered and painted
+  // so the input has settled and all consumers read the same stable value.
+  const [search, setSearch] = createSignal("")
+  createEffect(() => {
+    const next = filter()
+    setSearch(next ? next : "");
+  })
+
   // When the filter changes due to how TUI works, the mousemove might still be triggered
   // via a synthetic event as the layout moves underneath the cursor. This is a workaround to make sure the input mode remains keyboard so
   // that the mouseover event doesn't trigger when filtering.
@@ -208,7 +218,7 @@ export function Autocomplete(props: {
   }
 
   const [files] = createResource(
-    () => filter(),
+    () => search(),
     async (query) => {
       if (!store.visible || store.visible === "/") return []
 
@@ -378,9 +388,9 @@ export function Autocomplete(props: {
     const mixed: AutocompleteOption[] =
       store.visible === "@" ? [...agentsValue, ...(filesValue || []), ...mcpResources()] : [...commandsValue]
 
-    const currentFilter = filter()
+    const searchValue = search()
 
-    if (!currentFilter) {
+    if (!searchValue) {
       return mixed
     }
 
@@ -388,7 +398,7 @@ export function Autocomplete(props: {
       return prev
     }
 
-    const result = fuzzysort.go(removeLineRange(currentFilter), mixed, {
+    const result = fuzzysort.go(removeLineRange(searchValue), mixed, {
       keys: [
         (obj) => removeLineRange((obj.value ?? obj.display).trimEnd()),
         "description",
@@ -398,7 +408,7 @@ export function Autocomplete(props: {
       scoreFn: (objResults) => {
         const displayResult = objResults[0]
         let score = objResults.score
-        if (displayResult && displayResult.target.startsWith(store.visible + currentFilter)) {
+        if (displayResult && displayResult.target.startsWith(store.visible + searchValue)) {
           score *= 2
         }
         const frecencyScore = objResults.obj.path ? frecency.getFrecency(objResults.obj.path) : 0