feat(tui): add ctrl+r prompt history search dialog

Rebind ctrl+r from session rename to a new prompt history search
dialog. The dialog shows deduplicated history entries most-recent-first
with fuzzy search filtering. Selecting an entry restores the full
prompt state including text, mode, and file/agent parts.

Also available as the /history slash command. Session rename remains
accessible via /rename.

Author: Integralist

packages/tui/src/component/dialog-prompt-history.tsx

@@ -0,0 +1,43 @@
+import { DialogSelect, type DialogSelectOption } from "../ui/dialog-select"
+import { createMemo } from "solid-js"
+import { useDialog } from "../ui/dialog"
+import type { PromptInfo } from "../prompt/history"
+
+export type DialogPromptHistoryProps = {
+  history: PromptInfo[]
+  onSelect: (item: PromptInfo) => void
+}
+
+export function DialogPromptHistory(props: DialogPromptHistoryProps) {
+  const dialog = useDialog()
+  dialog.setSize("large")
+
+  const options = createMemo<DialogSelectOption<PromptInfo>[]>(() => {
+    // Show most recent first, deduplicate by input text
+    const seen = new Set<string>()
+    const unique: PromptInfo[] = []
+    for (let i = props.history.length - 1; i >= 0; i--) {
+      const item = props.history[i]
+      if (!item || seen.has(item.input)) continue
+      seen.add(item.input)
+      unique.push(item)
+    }
+    return unique.map((item) => ({
+      title: item.input.replace(/\s+/g, " ").trim(),
+      value: item,
+      category: "History",
+      onSelect: () => {
+        props.onSelect(item)
+        dialog.clear()
+      },
+    }))
+  })
+
+  return (
+    <DialogSelect
+      title="Prompt History"
+      placeholder="Search history..."
+      options={options()}
+    />
+  )
+}

packages/tui/src/component/prompt/index.tsx

@@ -48,6 +48,7 @@ import { DialogAlert } from "../../ui/dialog-alert"
 import { useToast } from "../../ui/toast"
 import { useKV } from "../../context/kv"
 import { createFadeIn } from "../../util/signal"
+import { DialogPromptHistory } from "../dialog-prompt-history"
 import { DialogSkill } from "../dialog-skill"
 import { DialogWorkspaceUnavailable } from "../dialog-workspace-unavailable"
 import { DialogBtw } from "../dialog-btw"
@@ -532,6 +533,26 @@ export function Prompt(props: PromptProps) {
           ))
         },
       },
+      {
+        title: "Search prompt history",
+        name: "prompt.history.search",
+        category: "Prompt",
+        slashName: "history",
+        run: () => {
+          dialog.replace(() => (
+            <DialogPromptHistory
+              history={history.list()}
+              onSelect={(item) => {
+                input.setText(item.input)
+                setStore("prompt", item)
+                setStore("mode", item.mode ?? "normal")
+                restoreExtmarksFromParts(item.parts)
+                input.gotoBufferEnd()
+              }}
+            />
+          ))
+        },
+      },
       {
         title: "Warp",
         desc: "Change the workspace for the session",
@@ -573,6 +594,7 @@ export function Prompt(props: PromptProps) {
       "prompt.stash.pop",
       "prompt.stash.list",
       "prompt.skills",
+      "prompt.history.search",
       "session.interrupt",
       "workspace.set",
       "session.move",

packages/tui/src/config/keybind.ts

@@ -90,7 +90,7 @@ export const Definitions = {
   session_list: keybind("<leader>l", "List all sessions"),
   session_timeline: keybind("<leader>g", "Show session timeline"),
   session_fork: keybind("none", "Fork session from message"),
-  session_rename: keybind("ctrl+r", "Rename session"),
+  session_rename: keybind("none", "Rename session"),
   session_delete: keybind("ctrl+d", "Delete session"),
   session_share: keybind("none", "Share current session"),
   session_unshare: keybind("none", "Unshare current session"),
@@ -198,6 +198,7 @@ export const Definitions = {
   input_select_all: keybind("super+a", "Select all in input"),
   history_previous: keybind("up", "Previous history item"),
   history_next: keybind("down", "Next history item"),
+  history_search: keybind("ctrl+r", "Search prompt history"),
 
   "dialog.select.prev": keybind("up,ctrl+p", "Move to previous dialog item"),
   "dialog.select.next": keybind("down,ctrl+n", "Move to next dialog item"),
@@ -401,6 +402,7 @@ export const CommandMap = {
   input_select_all: "input.select.all",
   history_previous: "prompt.history.previous",
   history_next: "prompt.history.next",
+  history_search: "prompt.history.search",
   terminal_suspend: "terminal.suspend",
   terminal_title_toggle: "terminal.title.toggle",
   tips_toggle: "tips.toggle",

packages/tui/src/prompt/history.tsx

@@ -66,6 +66,9 @@ export const { use: usePromptHistory, provider: PromptHistoryProvider } = create
     })
 
     return {
+      list() {
+        return store.history
+      },
       move(direction: 1 | -1, input: string) {
         if (!store.history.length) return undefined
         const current = store.history.at(store.index)