diff --git a/extensions/ql-vscode/package-lock.json b/extensions/ql-vscode/package-lock.json
index fcc53e582..43263180a 100644
--- a/extensions/ql-vscode/package-lock.json
+++ b/extensions/ql-vscode/package-lock.json
@@ -10,6 +10,7 @@
       "hasInstallScript": true,
       "license": "MIT",
       "dependencies": {
+        "@floating-ui/react": "^0.26.5",
         "@octokit/plugin-retry": "^6.0.1",
         "@octokit/rest": "^20.0.2",
         "@vscode/codicons": "^0.0.35",
@@ -2967,42 +2968,57 @@
       "dev": true
     },
     "node_modules/@floating-ui/core": {
-      "version": "1.5.2",
-      "resolved": "https://registry.npmjs.org/@floating-ui/core/-/core-1.5.2.tgz",
-      "integrity": "sha512-Ii3MrfY/GAIN3OhXNzpCKaLxHQfJF9qvwq/kEJYdqDxeIHa01K8sldugal6TmeeXl+WMvhv9cnVzUTaFFJF09A==",
-      "dev": true,
+      "version": "1.5.3",
+      "resolved": "https://registry.npmjs.org/@floating-ui/core/-/core-1.5.3.tgz",
+      "integrity": "sha512-O0WKDOo0yhJuugCx6trZQj5jVJ9yR0ystG2JaNAemYUWce+pmM6WUEFIibnWyEJKdrDxhm75NoSRME35FNaM/Q==",
       "dependencies": {
-        "@floating-ui/utils": "^0.1.3"
+        "@floating-ui/utils": "^0.2.0"
       }
     },
     "node_modules/@floating-ui/dom": {
-      "version": "1.5.3",
-      "resolved": "https://registry.npmjs.org/@floating-ui/dom/-/dom-1.5.3.tgz",
-      "integrity": "sha512-ClAbQnEqJAKCJOEbbLo5IUlZHkNszqhuxS4fHAVxRPXPya6Ysf2G8KypnYcOTpx6I8xcgF9bbHb6g/2KpbV8qA==",
-      "dev": true,
+      "version": "1.5.4",
+      "resolved": "https://registry.npmjs.org/@floating-ui/dom/-/dom-1.5.4.tgz",
+      "integrity": "sha512-jByEsHIY+eEdCjnTVu+E3ephzTOzkQ8hgUfGwos+bg7NlH33Zc5uO+QHz1mrQUOgIKKDD1RtS201P9NvAfq3XQ==",
       "dependencies": {
-        "@floating-ui/core": "^1.4.2",
-        "@floating-ui/utils": "^0.1.3"
+        "@floating-ui/core": "^1.5.3",
+        "@floating-ui/utils": "^0.2.0"
       }
     },
-    "node_modules/@floating-ui/react-dom": {
-      "version": "2.0.4",
-      "resolved": "https://registry.npmjs.org/@floating-ui/react-dom/-/react-dom-2.0.4.tgz",
-      "integrity": "sha512-CF8k2rgKeh/49UrnIBs4BdxPUV6vize/Db1d/YbCLyp9GiVZ0BEwf5AiDSxJRCr6yOkGqTFHtmrULxkEfYZ7dQ==",
-      "dev": true,
+    "node_modules/@floating-ui/react": {
+      "version": "0.26.5",
+      "resolved": "https://registry.npmjs.org/@floating-ui/react/-/react-0.26.5.tgz",
+      "integrity": "sha512-LJeSQa+yOwV0Tdpc/C3Vr92QMrwRqRMTk4yOwsRJKc57x3Lcw317GE0EV+ECM7+Z89yEAPBe7nzbDEWfkWCrBA==",
       "dependencies": {
-        "@floating-ui/dom": "^1.5.1"
+        "@floating-ui/react-dom": "^2.0.5",
+        "@floating-ui/utils": "^0.2.0",
+        "tabbable": "^6.0.1"
       },
       "peerDependencies": {
         "react": ">=16.8.0",
         "react-dom": ">=16.8.0"
       }
     },
+    "node_modules/@floating-ui/react-dom": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/@floating-ui/react-dom/-/react-dom-2.0.5.tgz",
+      "integrity": "sha512-UsBK30Bg+s6+nsgblXtZmwHhgS2vmbuQK22qgt2pTQM6M3X6H1+cQcLXqgRY3ihVLcZJE6IvqDQozhsnIVqK/Q==",
+      "dependencies": {
+        "@floating-ui/dom": "^1.5.4"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@floating-ui/react/node_modules/tabbable": {
+      "version": "6.2.0",
+      "resolved": "https://registry.npmjs.org/tabbable/-/tabbable-6.2.0.tgz",
+      "integrity": "sha512-Cat63mxsVJlzYvN51JmVXIgNoUokrIaT2zLclCXjRd8boZ0004U4KCs/sToJ75C6sdlByWxpYnb5Boif1VSFew=="
+    },
     "node_modules/@floating-ui/utils": {
-      "version": "0.1.6",
-      "resolved": "https://registry.npmjs.org/@floating-ui/utils/-/utils-0.1.6.tgz",
-      "integrity": "sha512-OfX7E2oUDYxtBvsuS4e/jSn4Q9Qb6DzgeYtsAdkPZ47znpoNsMgZw0+tVijiv3uGNR6dgNlty6r9rzIzHjtd/A==",
-      "dev": true
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/@floating-ui/utils/-/utils-0.2.1.tgz",
+      "integrity": "sha512-9TANp6GPoMtYzQdt54kfAyMmz1+osLlXdg2ENroU7zzrtflTLrrC/lgrIfaSe+Wu0b89GKccT7vxXA0MoAIO+Q=="
     },
     "node_modules/@github/browserslist-config": {
       "version": "1.0.0",
diff --git a/extensions/ql-vscode/package.json b/extensions/ql-vscode/package.json
index 1fa606758..c2b7dd8c6 100644
--- a/extensions/ql-vscode/package.json
+++ b/extensions/ql-vscode/package.json
@@ -1908,6 +1908,7 @@
     "prepare": "cd ../.. && husky install"
   },
   "dependencies": {
+    "@floating-ui/react": "^0.26.5",
     "@octokit/plugin-retry": "^6.0.1",
     "@octokit/rest": "^20.0.2",
     "@vscode/codicons": "^0.0.35",
diff --git a/extensions/ql-vscode/src/stories/common/SuggestBox.stories.tsx b/extensions/ql-vscode/src/stories/common/SuggestBox.stories.tsx
new file mode 100644
index 000000000..ce4c2f5c3
--- /dev/null
+++ b/extensions/ql-vscode/src/stories/common/SuggestBox.stories.tsx
@@ -0,0 +1,146 @@
+import type { Meta, StoryFn } from "@storybook/react";
+
+import { styled } from "styled-components";
+
+import { Codicon } from "../../view/common";
+import { SuggestBox as SuggestBoxComponent } from "../../view/common/SuggestBox/SuggestBox";
+import { useCallback, useState } from "react";
+
+export default {
+  title: "Suggest Box",
+  component: SuggestBoxComponent,
+} as Meta<typeof SuggestBoxComponent>;
+
+type StoryOption = {
+  label: string;
+  icon: string;
+  details?: string;
+  value: string;
+  followup?: StoryOption[];
+};
+
+const Template: StoryFn<typeof SuggestBoxComponent<StoryOption>> = (args) => {
+  const [value, setValue] = useState("");
+
+  const handleChange = useCallback(
+    (value: string) => {
+      args.onChange(value);
+      setValue(value);
+    },
+    [args],
+  );
+
+  return (
+    <SuggestBoxComponent<StoryOption>
+      {...args}
+      value={value}
+      onChange={handleChange}
+    />
+  );
+};
+
+const Icon = styled(Codicon)`
+  margin-right: 4px;
+  color: var(--vscode-symbolIcon-fieldForeground);
+  font-size: 16px;
+`;
+
+const suggestedOptions: StoryOption[] = [
+  {
+    label: "Argument[self]",
+    icon: "symbol-class",
+    details: "sqlite3.SQLite3::Database",
+    value: "Argument[self]",
+  },
+  {
+    label: "Argument[0]",
+    icon: "symbol-parameter",
+    details: "name",
+    value: "Argument[0]",
+    followup: [
+      {
+        label: "Element[0]",
+        icon: "symbol-field",
+        value: "Argument[0].Element[0]",
+        details: "first character",
+      },
+      {
+        label: "Element[1]",
+        icon: "symbol-field",
+        value: "Argument[0].Element[1]",
+        details: "second character",
+      },
+      {
+        label: "Element[any]",
+        icon: "symbol-field",
+        value: "Argument[0].Element[any]",
+        details: "any character",
+      },
+    ],
+  },
+  {
+    label: "Argument[1]",
+    icon: "symbol-parameter",
+    details: "arity",
+    value: "Argument[1]",
+  },
+  {
+    label: "Argument[text_rep:]",
+    icon: "symbol-parameter",
+    details: "text_rep:",
+    value: "Argument[text_rep:]",
+  },
+  {
+    label: "Argument[block]",
+    icon: "symbol-parameter",
+    details: "&block",
+    value: "Argument[block]",
+    followup: [
+      {
+        label: "Parameter[0]",
+        icon: "symbol-parameter",
+        value: "Argument[block].Parameter[0]",
+        details: "val",
+        followup: [
+          {
+            label: "Element[:query]",
+            icon: "symbol-key",
+            value: "Argument[block].Parameter[0].Element[:query]",
+          },
+          {
+            label: "Element[:parameters]",
+            icon: "symbol-key",
+            value: "Argument[block].Parameter[0].Element[:parameters]",
+          },
+        ],
+      },
+      {
+        label: "Parameter[1]",
+        icon: "symbol-parameter",
+        value: "Argument[block].Parameter[1]",
+        details: "context",
+        followup: [
+          {
+            label: "Field[@query]",
+            icon: "symbol-field",
+            value: "Argument[block].Parameter[1].Field[@query]",
+          },
+        ],
+      },
+    ],
+  },
+  {
+    label: "ReturnValue",
+    icon: "symbol-variable",
+    details: undefined,
+    value: "ReturnValue",
+  },
+];
+
+export const AccessPath = Template.bind({});
+AccessPath.args = {
+  options: suggestedOptions,
+  parseValueToTokens: (value: string) => value.split("."),
+  getIcon: (option: StoryOption) => <Icon name={option.icon} />,
+  getDetails: (option: StoryOption) => option.details,
+};
diff --git a/extensions/ql-vscode/src/view/common/SuggestBox/SuggestBox.tsx b/extensions/ql-vscode/src/view/common/SuggestBox/SuggestBox.tsx
new file mode 100644
index 000000000..544de25c1
--- /dev/null
+++ b/extensions/ql-vscode/src/view/common/SuggestBox/SuggestBox.tsx
@@ -0,0 +1,227 @@
+import type { FormEvent, ReactNode } from "react";
+import { useCallback, useMemo, useRef, useState, useEffect } from "react";
+import {
+  autoUpdate,
+  flip,
+  FloatingFocusManager,
+  FloatingPortal,
+  size,
+  useDismiss,
+  useFloating,
+  useFocus,
+  useInteractions,
+  useListNavigation,
+  useRole,
+} from "@floating-ui/react";
+import { styled } from "styled-components";
+import { VSCodeTextField } from "@vscode/webview-ui-toolkit/react";
+import type { Option } from "./options";
+import { findMatchingOptions } from "./options";
+import { SuggestBoxItem } from "./SuggestBoxItem";
+
+const Input = styled(VSCodeTextField)`
+  width: 430px;
+
+  font-family: var(--vscode-editor-font-family);
+`;
+
+const Container = styled.div`
+  width: 430px;
+  display: flex;
+  flex-direction: column;
+  border-radius: 3px;
+
+  background-color: var(--vscode-editorSuggestWidget-background);
+  border: 1px solid var(--vscode-editorSuggestWidget-border);
+
+  user-select: none;
+`;
+
+const ListContainer = styled(Container)`
+  font-size: 95%;
+`;
+
+const NoSuggestionsContainer = styled(Container)`
+  padding-top: 2px;
+  padding-bottom: 2px;
+`;
+
+const NoSuggestionsText = styled.div`
+  padding-left: 22px;
+`;
+
+type Props<T extends Option<T>> = {
+  value?: string;
+  onChange: (value: string) => void;
+  options: T[];
+
+  /**
+   * Parse the value into tokens that can be used to match against the options. The
+   * tokens will be passed to {@link findMatchingOptions}.
+   * @param value The user-entered value to parse.
+   */
+  parseValueToTokens: (value: string) => string[];
+
+  /**
+   * Get the icon to display for an option.
+   * @param option The option to get the icon for.
+   */
+  getIcon?: (option: T) => ReactNode | undefined;
+  /**
+   * Get the details text to display for an option.
+   * @param option The option to get the details for.
+   */
+  getDetails?: (option: T) => ReactNode | undefined;
+
+  disabled?: boolean;
+
+  "aria-label"?: string;
+};
+
+export const SuggestBox = <T extends Option<T>>({
+  value = "",
+  onChange,
+  options,
+  parseValueToTokens,
+  getIcon,
+  getDetails,
+  disabled,
+  "aria-label": ariaLabel,
+}: Props<T>) => {
+  const [isOpen, setIsOpen] = useState(false);
+  const [activeIndex, setActiveIndex] = useState<number | null>(null);
+
+  const listRef = useRef<Array<HTMLElement | null>>([]);
+
+  const { refs, floatingStyles, context } = useFloating<HTMLInputElement>({
+    whileElementsMounted: autoUpdate,
+    open: isOpen,
+    onOpenChange: setIsOpen,
+    placement: "bottom-start",
+    middleware: [
+      // Flip when the popover is too close to the bottom of the screen
+      flip({ padding: 10 }),
+      // Resize the popover to be fill the available height
+      size({
+        apply({ availableHeight, elements }) {
+          Object.assign(elements.floating.style, {
+            maxHeight: `${availableHeight}px`,
+          });
+        },
+        padding: 10,
+      }),
+    ],
+  });
+
+  const focus = useFocus(context);
+  const role = useRole(context, { role: "listbox" });
+  const dismiss = useDismiss(context);
+  const listNav = useListNavigation(context, {
+    listRef,
+    activeIndex,
+    onNavigate: setActiveIndex,
+    virtual: true,
+    loop: true,
+  });
+
+  const { getReferenceProps, getFloatingProps, getItemProps } = useInteractions(
+    [focus, role, dismiss, listNav],
+  );
+
+  const handleInput = useCallback(
+    (event: FormEvent<HTMLInputElement>) => {
+      const value = event.currentTarget.value;
+      onChange(value);
+      setIsOpen(true);
+      setActiveIndex(0);
+    },
+    [onChange],
+  );
+
+  const suggestionItems = useMemo(() => {
+    return findMatchingOptions(options, parseValueToTokens(value));
+  }, [options, value, parseValueToTokens]);
+
+  useEffect(() => {
+    if (disabled) {
+      setIsOpen(false);
+    }
+  }, [disabled]);
+
+  return (
+    <>
+      <Input
+        {...getReferenceProps({
+          ref: refs.setReference,
+          value,
+          onInput: handleInput,
+          "aria-autocomplete": "list",
+          "aria-label": ariaLabel,
+          onKeyDown: (event) => {
+            // When the user presses the enter key, select the active item
+            if (
+              event.key === "Enter" &&
+              activeIndex !== null &&
+              suggestionItems[activeIndex]
+            ) {
+              onChange(suggestionItems[activeIndex].value);
+              setActiveIndex(null);
+              setIsOpen(false);
+            }
+          },
+          disabled,
+        })}
+      />
+      {isOpen && (
+        <FloatingPortal>
+          {value && suggestionItems.length === 0 && (
+            <NoSuggestionsContainer
+              {...getFloatingProps({
+                ref: refs.setFloating,
+                style: floatingStyles,
+              })}
+            >
+              <NoSuggestionsText>No suggestions.</NoSuggestionsText>
+            </NoSuggestionsContainer>
+          )}
+          {suggestionItems.length > 0 && (
+            <FloatingFocusManager
+              context={context}
+              initialFocus={-1}
+              visuallyHiddenDismiss
+            >
+              <ListContainer
+                {...getFloatingProps({
+                  ref: refs.setFloating,
+                  style: floatingStyles,
+                })}
+              >
+                {suggestionItems.map((item, index) => (
+                  <SuggestBoxItem
+                    key={item.label}
+                    {...getItemProps({
+                      key: item.label,
+                      ref(node) {
+                        listRef.current[index] = node;
+                      },
+                      onClick() {
+                        onChange(item.value);
+                        setIsOpen(false);
+
+                        refs.domReference.current?.focus();
+                      },
+                    })}
+                    active={activeIndex === index}
+                    icon={getIcon?.(item)}
+                    labelText={item.label}
+                    details={getDetails?.(item)}
+                  />
+                ))}
+              </ListContainer>
+            </FloatingFocusManager>
+          )}
+        </FloatingPortal>
+      )}
+    </>
+  );
+};
diff --git a/extensions/ql-vscode/src/view/common/SuggestBox/SuggestBoxItem.tsx b/extensions/ql-vscode/src/view/common/SuggestBox/SuggestBoxItem.tsx
new file mode 100644
index 000000000..1693d46f1
--- /dev/null
+++ b/extensions/ql-vscode/src/view/common/SuggestBox/SuggestBoxItem.tsx
@@ -0,0 +1,86 @@
+import type { HTMLProps, ReactNode } from "react";
+import { forwardRef } from "react";
+import { useId } from "@floating-ui/react";
+import { styled } from "styled-components";
+
+const Container = styled.div<{ $active: boolean }>`
+  display: flex;
+  box-sizing: border-box;
+  padding-right: 10px;
+  background-repeat: no-repeat;
+  background-position: 2px 2px;
+  white-space: nowrap;
+  cursor: pointer;
+  touch-action: none;
+  padding-left: 2px;
+
+  font-family: var(--vscode-editor-font-family);
+
+  color: ${(props) =>
+    props.$active
+      ? "var(--vscode-editorSuggestWidget-selectedForeground)"
+      : "var(--vscode-editorSuggestWidget-foreground)"};
+  background-color: ${(props) =>
+    props.$active
+      ? "var(--vscode-editorSuggestWidget-selectedBackground)"
+      : "transparent"};
+`;
+
+const LabelContainer = styled.div`
+  flex: 1;
+  display: flex;
+  overflow: hidden;
+  white-space: pre;
+  justify-content: space-between;
+  align-items: center;
+`;
+
+const Label = styled.span`
+  flex-shrink: 1;
+  flex-grow: 1;
+  overflow: hidden;
+  text-overflow: ellipsis;
+`;
+
+const DetailsLabel = styled.span`
+  overflow: hidden;
+  flex-shrink: 4;
+  max-width: 70%;
+
+  font-size: 85%;
+  margin-left: 1.1em;
+  opacity: 0.7;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+`;
+
+type Props = {
+  active: boolean;
+  icon?: ReactNode;
+  labelText: ReactNode;
+  details?: ReactNode;
+};
+
+export const SuggestBoxItem = forwardRef<
+  HTMLDivElement,
+  Props & HTMLProps<HTMLDivElement>
+>(({ children, active, icon, labelText, details, ...props }, ref) => {
+  const id = useId();
+  return (
+    <Container
+      ref={ref}
+      role="option"
+      id={id}
+      aria-selected={active}
+      $active={active}
+      {...props}
+    >
+      {icon}
+      <LabelContainer>
+        <Label>{labelText}</Label>
+        {details && <DetailsLabel>{details}</DetailsLabel>}
+      </LabelContainer>
+    </Container>
+  );
+});
+SuggestBoxItem.displayName = "SuggestBoxItem";
diff --git a/extensions/ql-vscode/src/view/common/SuggestBox/index.ts b/extensions/ql-vscode/src/view/common/SuggestBox/index.ts
new file mode 100644
index 000000000..d5914f4d3
--- /dev/null
+++ b/extensions/ql-vscode/src/view/common/SuggestBox/index.ts
@@ -0,0 +1 @@
+export * from "./SuggestBox";
diff --git a/extensions/ql-vscode/src/view/common/SuggestBox/options.ts b/extensions/ql-vscode/src/view/common/SuggestBox/options.ts
index 2f15b45cf..dfaadbad4 100644
--- a/extensions/ql-vscode/src/view/common/SuggestBox/options.ts
+++ b/extensions/ql-vscode/src/view/common/SuggestBox/options.ts
@@ -1,5 +1,6 @@
-type Option<T extends Option<T>> = {
+export type Option<T extends Option<T>> = {
   label: string;
+  value: string;
   followup?: T[];
 };