diff --git a/.changeset/forty-hats-tickle.md b/.changeset/forty-hats-tickle.md
new file mode 100644
index 000000000..0d5b1422e
--- /dev/null
+++ b/.changeset/forty-hats-tickle.md
@@ -0,0 +1,6 @@
+---
+"apollo-client-devtools": minor
+"@apollo/client-devtools-vscode": minor
+---
+
+Add a memory panel to monitor internal Apollo Client caches.
diff --git a/package-lock.json b/package-lock.json
index c178c4cea..0fa5703f8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -48,6 +48,7 @@
         "zen-observable": "^0.10.0"
       },
       "devDependencies": {
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         "@changesets/changelog-github": "0.5.0",
         "@changesets/cli": "2.27.10",
         "@graphql-codegen/cli": "5.0.3",
@@ -110,6 +111,34 @@
         "ws": "^8.18.0"
       }
     },
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+      "dev": true,
+      "peerDependencies": {
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+      },
+      "peerDependenciesMeta": {
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+          "optional": true
+        }
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+      "dev": true,
+      "dependencies": {
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@@ -3662,6 +3339,19 @@
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-        "url": "https://opencollective.com/parcel"
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-    },
-    "node_modules/@parcel/watcher-win32-x64": {
-      "version": "2.4.1",
-      "resolved": "https://registry.npmjs.org/@parcel/watcher-win32-x64/-/watcher-win32-x64-2.4.1.tgz",
-      "integrity": "sha512-+DvS92F9ezicfswqrvIRM2njcYJbd5mb9CUgtrHCHmvn7pPPa+nMDRu1o1bYYz/l5IB2NVGNJWiH7h1E58IF2A==",
-      "cpu": [
-        "x64"
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-      "dev": true,
-      "optional": true,
-      "os": [
-        "win32"
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-      },
-      "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/parcel"
-      }
-    },
     "node_modules/@pkgjs/parseargs": {
       "version": "0.11.0",
       "resolved": "https://registry.npmjs.org/@pkgjs/parseargs/-/parseargs-0.11.0.tgz",
@@ -28052,12 +27522,12 @@
       }
     },
     "packages/apollo-client-devtools": {
-      "version": "4.19.0",
+      "version": "4.19.2",
       "license": "MIT"
     },
     "packages/client-devtools-vscode": {
       "name": "@apollo/client-devtools-vscode",
-      "version": "4.19.0",
+      "version": "4.19.2",
       "license": "MIT",
       "dependencies": {
         "zen-observable": "^0.8.0"
diff --git a/package.json b/package.json
index a2a0614ae..35ce6399f 100755
--- a/package.json
+++ b/package.json
@@ -71,6 +71,7 @@
     "zen-observable": "^0.10.0"
   },
   "devDependencies": {
+    "@0no-co/graphqlsp": "^1.12.13",
     "@changesets/changelog-github": "0.5.0",
     "@changesets/cli": "2.27.10",
     "@graphql-codegen/cli": "5.0.3",
diff --git a/src/application/App.tsx b/src/application/App.tsx
index 838b84236..3ebc23f76 100644
--- a/src/application/App.tsx
+++ b/src/application/App.tsx
@@ -41,6 +41,7 @@ import { removeClient } from ".";
 import { PageError } from "./components/PageError";
 import { SidebarLayout } from "./components/Layouts/SidebarLayout";
 import { ExternalLink } from "./components/ExternalLink";
+import { MemoryInternals } from "./components/MemoryInternals";
 
 const APP_QUERY: TypedDocumentNode<AppQuery, AppQueryVariables> = gql`
   query AppQuery {
@@ -168,6 +169,7 @@ export const App = () => {
               Mutations ({client?.mutations.total ?? 0})
             </Tabs.Trigger>
             <Tabs.Trigger value={Screens.Cache}>Cache</Tabs.Trigger>
+            <Tabs.Trigger value={Screens.Memory}>Memory</Tabs.Trigger>
             <Tabs.Trigger value={Screens.Explorer}>Explorer</Tabs.Trigger>
           </Tabs.List>
           <div className="ml-auto flex-1 justify-end flex items-center gap-2 h-full">
@@ -273,6 +275,14 @@ export const App = () => {
             <Cache clientId={selectedClientId} />
           </TabErrorBoundary>
         </Tabs.Content>
+        <Tabs.Content
+          className="flex flex-1 overflow-hidden"
+          value={Screens.Memory}
+        >
+          <TabErrorBoundary remarks="Error on Memory tab:">
+            <MemoryInternals clientId={selectedClientId} />
+          </TabErrorBoundary>
+        </Tabs.Content>
       </Tabs>
     </>
   );
diff --git a/src/application/components/CacheSize.tsx b/src/application/components/CacheSize.tsx
new file mode 100644
index 000000000..47a4176b6
--- /dev/null
+++ b/src/application/components/CacheSize.tsx
@@ -0,0 +1,290 @@
+import type { ReactNode } from "react";
+import IconOutlink from "@apollo/icons/small/IconOutlink.svg";
+import IconInfo from "@apollo/icons/default/IconInfo.svg";
+import IconWarning from "@apollo/icons/large/IconWarning.svg";
+import { ExternalLink } from "./ExternalLink";
+import { Tooltip } from "./Tooltip";
+import type { CacheSizes } from "@apollo/client/utilities";
+import type { CacheSize as CacheSizeType } from "../types/gql";
+import clsx from "clsx";
+
+const DESCRIPTIONS: Record<keyof CacheSizes, ReactNode> = {
+  print: (
+    <>
+      <p>
+        Cache size for the{" "}
+        <TooltipLink href="https://github.com/apollographql/apollo-client/blob/main/src/utilities/graphql/print.ts">
+          <code>print</code>
+        </TooltipLink>{" "}
+        function.
+      </p>
+      <p>
+        It is called with transformed <code>DocumentNode</code>s.
+      </p>
+      <p>
+        This method is called to transform a GraphQL query AST parsed by{" "}
+        <code>gql</code> back into a GraphQL string.
+      </p>
+    </>
+  ),
+  parser: (
+    <>
+      <p>
+        Cache size for the{" "}
+        <TooltipLink href="https://github.com/apollographql/apollo-client/blob/main/src/react/parser/index.ts">
+          <code>parser</code>
+        </TooltipLink>{" "}
+        function.
+      </p>
+      <p>
+        It is called with user-provided <code>DocumentNode</code>s.
+      </p>
+    </>
+  ),
+  canonicalStringify: (
+    <p>
+      Cache used by{" "}
+      <TooltipLink href="https://github.com/apollographql/apollo-client/blob/main/src/utilities/common/canonicalStringify.ts">
+        <code>canonicalStringify</code>
+      </TooltipLink>
+    </p>
+  ),
+  "PersistedQueryLink.persistedQueryHashes": (
+    <>
+      <p>
+        A cache inside of
+        <TooltipLink href="https://github.com/apollographql/apollo-client/blob/main/src/link/persisted-queries/index.ts">
+          <code>PersistedQueryLink</code>
+        </TooltipLink>
+        .
+      </p>
+      <p>
+        It is called with transformed <code>DocumentNode</code>s.
+      </p>
+    </>
+  ),
+  "removeTypenameFromVariables.getVariableDefinitions": (
+    <>
+      <p>
+        Cache used in
+        <TooltipLink href="https://github.com/apollographql/apollo-client/blob/main/src/link/remove-typename/removeTypenameFromVariables.ts">
+          <code>removeTypenameFromVariables</code>
+        </TooltipLink>
+        .
+      </p>
+      <p>
+        This function is called transformed <code>DocumentNode</code>s.
+      </p>
+    </>
+  ),
+  "queryManager.getDocumentInfo": (
+    <>
+      <p>
+        A cache inside of{" "}
+        <TooltipLink href="https://github.com/apollographql/apollo-client/blob/main/src/core/QueryManager.ts">
+          <code>QueryManager</code>
+        </TooltipLink>
+        .
+      </p>
+      <p>
+        It is called with transformed <code>DocumentNode</code>s.
+      </p>
+    </>
+  ),
+  "documentTransform.cache": (
+    <>
+      <p>
+        Cache size for the cache of
+        <TooltipLink href="https://github.com/apollographql/apollo-client/blob/main/src/utilities/graphql/DocumentTransform.ts">
+          <code>DocumentTransform</code>
+        </TooltipLink>{" "}
+        instances with the <code>cache</code> option set to <code>true</code>.
+      </p>
+      <p>
+        Can be called with user-defined or already-transformed{" "}
+        <code>DocumentNode</code>s.
+      </p>
+    </>
+  ),
+  "fragmentRegistry.lookup": (
+    <>
+      <p>
+        A cache inside of
+        <TooltipLink href="https://github.com/apollographql/apollo-client/blob/main/src/cache/inmemory/fragmentRegistry.ts">
+          <code>FragmentRegistry</code>
+        </TooltipLink>
+        .
+      </p>
+      <p>
+        This function is called with fragment names in the form of a string.
+      </p>
+    </>
+  ),
+  "fragmentRegistry.findFragmentSpreads": (
+    <>
+      <p>
+        Cache size for the <code>findFragmentSpreads</code> method of
+        <TooltipLink href="https://github.com/apollographql/apollo-client/blob/main/src/cache/inmemory/fragmentRegistry.ts">
+          <code>FragmentRegistry</code>
+        </TooltipLink>
+        .
+      </p>
+      <p>
+        This function is called with transformed <code>DocumentNode</code>s, as
+        well as recursively with every fragment spread referenced within that,
+        or a fragment referenced by a fragment spread.
+      </p>
+    </>
+  ),
+  "fragmentRegistry.transform": (
+    <>
+      <p>
+        A cache inside of
+        <TooltipLink href="https://github.com/apollographql/apollo-client/blob/main/src/cache/inmemory/fragmentRegistry.ts">
+          <code>FragmentRegistry</code>
+        </TooltipLink>
+        .
+      </p>
+      <p>
+        Can be called with user-defined or already-transformed{" "}
+        <code>DocumentNode</code>s.
+      </p>
+    </>
+  ),
+  "cache.fragmentQueryDocuments": (
+    <>
+      <p>
+        Cache size for the <code>getFragmentDoc</code> method of
+        <TooltipLink href="https://github.com/apollographql/apollo-client/blob/main/src/cache/core/cache.ts">
+          <code>ApolloCache</code>
+        </TooltipLink>
+        .
+      </p>
+      <p>This function is called with user-provided fragment definitions.</p>
+    </>
+  ),
+  "inMemoryCache.executeSelectionSet": (
+    <>
+      <p>
+        Cache size for the <code>executeSelectionSet</code> method on{" "}
+        <TooltipLink href="https://github.com/apollographql/apollo-client/blob/main/src/cache/inmemory/readFromStore.ts">
+          <code>StoreReader</code>
+        </TooltipLink>
+        .
+      </p>
+      <p>
+        Note: <code>executeSelectionSet</code> will be set to the{" "}
+        <code>resultCacheMaxSize</code> option and will fall back to this
+        configuration value if the option is not set.
+      </p>
+    </>
+  ),
+  "inMemoryCache.executeSubSelectedArray": (
+    <>
+      <p>
+        Cache size for the <code>executeSubSelectedArray</code> method on{" "}
+        <TooltipLink href="https://github.com/apollographql/apollo-client/blob/main/src/cache/inmemory/readFromStore.ts">
+          <code>StoreReader</code>
+        </TooltipLink>
+        .
+      </p>
+
+      <p>
+        Note: <code>executeSubSelectedArray</code> will be set to the{" "}
+        <code>resultCacheMaxSize</code> option and will fall back to this
+        configuration value if the option is not set.
+      </p>
+    </>
+  ),
+  "inMemoryCache.maybeBroadcastWatch": (
+    <>
+      <p>
+        Cache size for the <code>maybeBroadcastWatch</code> method on{" "}
+        <TooltipLink href="https://github.com/apollographql/apollo-client/blob/main/src/cache/inmemory/inMemoryCache.ts">
+          <code>InMemoryCache</code>
+        </TooltipLink>
+        .
+      </p>
+      <p>
+        Note: <code>maybeBroadcastWatch</code> will be set to the{" "}
+        <code>resultCacheMaxSize</code> option and will fall back to this
+        configuration value if the option is not set.
+      </p>
+    </>
+  ),
+};
+
+export function CacheSize({ cacheSize }: { cacheSize: CacheSizeType }) {
+  if (cacheSize.size === null || cacheSize.limit === null) {
+    return null;
+  }
+
+  const description = DESCRIPTIONS[cacheSize.key as keyof CacheSizes];
+  const percentUsed = (cacheSize.size / cacheSize.limit) * 100;
+
+  return (
+    <div className="border border-primary dark:border-primary-dark rounded p-4 flex flex-col gap-4 min-w-[300px]">
+      <h2 className="text-heading dark:text-heading-dark text-sm font-code flex gap-2 items-center">
+        <code>{cacheSize.key}</code>
+        {description && (
+          <Tooltip
+            content={<div className="flex flex-col gap-2">{description}</div>}
+          >
+            <span>
+              <IconInfo className="text-icon-primary dark:text-icon-primary-dark size-4" />
+            </span>
+          </Tooltip>
+        )}
+      </h2>
+      <div className="flex gap-6 items-end">
+        <div className="flex flex-col gap-3">
+          <span className="uppercase text-secondary dark:text-secondary-dark text-xs font-bold">
+            Size
+          </span>
+          <span className="font-code">{cacheSize.size}</span>
+        </div>
+        <div className="flex flex-col gap-3">
+          <span className="uppercase text-secondary dark:text-secondary-dark text-xs font-bold">
+            Limit
+          </span>
+          <span className="font-code">{cacheSize.limit}</span>
+        </div>
+        <div
+          className={clsx(
+            "text-3xl text-right flex-1 font-code flex gap-2 items-center justify-end",
+            {
+              "text-error dark:text-error-dark": percentUsed >= 90,
+              "text-warning dark:text-warning-dark":
+                percentUsed >= 70 && percentUsed < 90,
+            }
+          )}
+        >
+          {percentUsed > 70 ? (
+            <IconWarning className="text-current size-6" />
+          ) : null}
+          {percentUsed > 0 && percentUsed < 1
+            ? percentUsed.toFixed(1) === "0.0"
+              ? "<0.1"
+              : percentUsed.toFixed(1)
+            : Math.floor(percentUsed)}
+          %
+        </div>
+      </div>
+    </div>
+  );
+}
+
+function TooltipLink({
+  children,
+  href,
+}: {
+  children: ReactNode;
+  href: string;
+}) {
+  return (
+    <ExternalLink href={href} className="inline-flex items-center gap-1">
+      {children}
+      <IconOutlink className="size-3" />
+    </ExternalLink>
+  );
+}
diff --git a/src/application/components/Layouts/Navigation.tsx b/src/application/components/Layouts/Navigation.tsx
index 14b94a84a..9465d3c0f 100644
--- a/src/application/components/Layouts/Navigation.tsx
+++ b/src/application/components/Layouts/Navigation.tsx
@@ -5,6 +5,7 @@ export enum Screens {
   Queries = "queries",
   Mutations = "mutations",
   Explorer = "explorer",
+  Memory = "memory",
 }
 
 export const currentScreen = makeVar<Screens>(Screens.Queries);
diff --git a/src/application/components/MemoryInternals.tsx b/src/application/components/MemoryInternals.tsx
new file mode 100644
index 000000000..15a2ee2ac
--- /dev/null
+++ b/src/application/components/MemoryInternals.tsx
@@ -0,0 +1,292 @@
+import type { TypedDocumentNode } from "@apollo/client";
+import { gql, NetworkStatus, useQuery } from "@apollo/client";
+import IconOutlink from "@apollo/icons/default/IconOutlink.svg";
+import IconOperations from "@apollo/icons/default/IconOperations.svg";
+import IconObserve from "@apollo/icons/default/IconObserve.svg";
+
+import { FullWidthLayout } from "./Layouts/FullWidthLayout";
+import { PageSpinner } from "./PageSpinner";
+import type {
+  MemoryInternalsQuery,
+  MemoryInternalsQueryVariables,
+} from "../types/gql";
+import type { ReactNode } from "react";
+import { useState } from "react";
+import { ButtonGroup } from "./ButtonGroup";
+import { Button } from "./Button";
+import { Tooltip } from "./Tooltip";
+import { JSONTreeViewer } from "./JSONTreeViewer";
+import { CacheSize } from "./CacheSize";
+import { lt } from "semver";
+import { ExternalLink } from "./ExternalLink";
+import { PageError } from "./PageError";
+
+interface MemoryInternalsProps {
+  clientId: string | undefined;
+}
+
+const MEMORY_INTERNALS_QUERY: TypedDocumentNode<
+  MemoryInternalsQuery,
+  MemoryInternalsQueryVariables
+> = gql`
+  query MemoryInternalsQuery($clientId: ID!) {
+    client(id: $clientId) {
+      id
+      version
+      memoryInternals {
+        raw
+        caches {
+          print {
+            ...CacheSizeFields
+          }
+          parser {
+            ...CacheSizeFields
+          }
+          canonicalStringify {
+            ...CacheSizeFields
+          }
+          links {
+            ... on PersistedQueryLinkCacheSizes {
+              persistedQueryHashes {
+                ...CacheSizeFields
+              }
+            }
+            ... on RemoveTypenameFromVariablesLinkCacheSizes {
+              getVariableDefinitions {
+                ...CacheSizeFields
+              }
+            }
+          }
+          queryManager {
+            getDocumentInfo {
+              ...CacheSizeFields
+            }
+            documentTransforms {
+              cache {
+                ...CacheSizeFields
+              }
+            }
+          }
+          fragmentRegistry {
+            lookup {
+              ...CacheSizeFields
+            }
+            findFragmentSpreads {
+              ...CacheSizeFields
+            }
+            transform {
+              ...CacheSizeFields
+            }
+          }
+          cache {
+            fragmentQueryDocuments {
+              ...CacheSizeFields
+            }
+          }
+          addTypenameDocumentTransform {
+            cache {
+              ...CacheSizeFields
+            }
+          }
+          inMemoryCache {
+            maybeBroadcastWatch {
+              ...CacheSizeFields
+            }
+            executeSelectionSet {
+              ...CacheSizeFields
+            }
+            executeSubSelectedArray {
+              ...CacheSizeFields
+            }
+          }
+        }
+      }
+    }
+  }
+
+  fragment CacheSizeFields on CacheSize {
+    key
+    size
+    limit
+  }
+`;
+
+export function MemoryInternals({ clientId }: MemoryInternalsProps) {
+  const [selectedView, setSelectedView] = useState<"raw" | "chart">("chart");
+
+  const { data, networkStatus, error } = useQuery(MEMORY_INTERNALS_QUERY, {
+    variables: { clientId: clientId as string },
+    skip: !clientId,
+    pollInterval: 1000,
+  });
+
+  if (error) {
+    throw error;
+  }
+
+  const memoryInternals = data?.client?.memoryInternals;
+  const caches = memoryInternals?.caches;
+  const version = data?.client?.version;
+
+  if (networkStatus === NetworkStatus.loading) {
+    return (
+      <EmptyLayout>
+        <PageSpinner />
+      </EmptyLayout>
+    );
+  }
+
+  if (version && lt(version, "3.9.0")) {
+    return (
+      <EmptyLayout>
+        <PageError className="mt-8">
+          <PageError.Content>
+            <PageError.Title>Memory management not available</PageError.Title>
+            <PageError.Body>
+              Memory management is available in Apollo Client{" "}
+              <ExternalLink
+                href="https://github.com/apollographql/apollo-client/releases/tag/v3.9.0"
+                className="font-medium inline-flex items-center gap-2"
+              >
+                3.9.0
+                <IconOutlink className="size-4" />
+              </ExternalLink>{" "}
+              or greater. Please upgrade your Apollo Client version to use this
+              feature.
+            </PageError.Body>
+          </PageError.Content>
+        </PageError>
+      </EmptyLayout>
+    );
+  }
+
+  if (!caches) {
+    return (
+      <EmptyLayout>
+        <PageError className="mt-8">
+          <PageError.Content>
+            <PageError.Title>Unable to get memory internals</PageError.Title>
+            <PageError.Body>
+              Could not get memory internals for the client. This could be a
+              result of running your application in production mode since access
+              to memory internals is only available in development builds.
+            </PageError.Body>
+          </PageError.Content>
+        </PageError>
+      </EmptyLayout>
+    );
+  }
+
+  return (
+    <FullWidthLayout className="p-4 gap-6">
+      <div className="flex gap-2 justify-between items-start">
+        <header className="flex flex-col gap-2">
+          <h1 className="font-medium text-2xl text-heading dark:text-heading-dark">
+            Memory
+          </h1>
+          <p className="text-secondary dark:text-secondary-dark">
+            Learn how Apollo Client manages memory and how to set custom cache
+            size limits in the{" "}
+            <a
+              href="https://www.apollographql.com/docs/react/caching/memory-management/"
+              className="font-medium underline inline-flex items-center gap-2"
+              target="_blank"
+              rel="noopener noreferer noreferrer"
+            >
+              docs
+              <IconOutlink className="size-4" />
+            </a>
+            .
+          </p>
+        </header>
+
+        <ButtonGroup>
+          <Tooltip content="View historical">
+            <Button
+              icon={<IconObserve className="size-4" />}
+              size="md"
+              variant={selectedView === "chart" ? "primary" : "secondary"}
+              onClick={() => setSelectedView("chart")}
+            />
+          </Tooltip>
+          <Tooltip content="View raw">
+            <Button
+              icon={<IconOperations className="size-4" />}
+              size="md"
+              variant={selectedView === "raw" ? "primary" : "secondary"}
+              onClick={() => setSelectedView("raw")}
+            />
+          </Tooltip>
+        </ButtonGroup>
+      </div>
+      <FullWidthLayout.Main className="flex flex-col gap-4 overflow-auto">
+        {selectedView === "chart" ? (
+          <div className="grid grid-cols-1 md:flex md:flex-wrap gap-4">
+            <CacheSize cacheSize={caches.cache.fragmentQueryDocuments} />
+            <CacheSize
+              cacheSize={caches.fragmentRegistry.findFragmentSpreads}
+            />
+            <CacheSize cacheSize={caches.fragmentRegistry.lookup} />
+            <CacheSize cacheSize={caches.fragmentRegistry.transform} />
+            <CacheSize cacheSize={caches.inMemoryCache.executeSelectionSet} />
+            <CacheSize
+              cacheSize={caches.inMemoryCache.executeSubSelectedArray}
+            />
+            <CacheSize cacheSize={caches.inMemoryCache.maybeBroadcastWatch} />
+            <CacheSize cacheSize={caches.queryManager.getDocumentInfo} />
+
+            <CacheSize cacheSize={caches.canonicalStringify} />
+            <CacheSize cacheSize={caches.parser} />
+            <CacheSize cacheSize={caches.print} />
+            {caches.queryManager.documentTransforms?.map(({ cache }, index) => (
+              <CacheSize key={index} cacheSize={cache} />
+            ))}
+            {caches.links.map((link, index) => (
+              <CacheSize
+                key={index}
+                cacheSize={
+                  link.__typename === "PersistedQueryLinkCacheSizes"
+                    ? link.persistedQueryHashes
+                    : link.getVariableDefinitions
+                }
+              />
+            ))}
+          </div>
+        ) : selectedView === "raw" ? (
+          <JSONTreeViewer
+            hideRoot
+            data={memoryInternals.raw}
+            shouldExpandNodeInitially={() => true}
+          />
+        ) : null}
+      </FullWidthLayout.Main>
+    </FullWidthLayout>
+  );
+}
+
+function EmptyLayout({ children }: { children: ReactNode }) {
+  return (
+    <FullWidthLayout className="p-4 gap-4">
+      <header className="flex flex-col gap-2">
+        <h1 className="font-medium text-2xl text-heading dark:text-heading-dark">
+          Memory
+        </h1>
+        <p className="text-secondary dark:text-secondary-dark">
+          Learn how Apollo Client manages memory and how to set custom cache
+          size limits in the{" "}
+          <ExternalLink
+            href="https://www.apollographql.com/docs/react/caching/memory-management/"
+            className="font-medium underline inline-flex items-center gap-2"
+          >
+            docs
+            <IconOutlink className="size-4" />
+          </ExternalLink>
+          .
+        </p>
+      </header>
+      <FullWidthLayout.Main className="flex flex-col gap-4 overflow-hidden">
+        {children}
+      </FullWidthLayout.Main>
+    </FullWidthLayout>
+  );
+}
diff --git a/src/application/components/Select/Select.tsx b/src/application/components/Select/Select.tsx
index d73c7f203..178e76d52 100644
--- a/src/application/components/Select/Select.tsx
+++ b/src/application/components/Select/Select.tsx
@@ -48,11 +48,12 @@ const scrollIndicator = cva(
     "items-center",
     "justify-center",
     "cursor-default",
-    "w-full",
     "py-2",
     "bg-primary",
     "dark:bg-primary-dark",
     "z-10",
+    "left-px",
+    "right-px",
   ],
   {
     variants: {
@@ -99,7 +100,7 @@ export const Select = ({
           align={align}
           sideOffset={6}
           position="popper"
-          className="border border-primary bg-primary dark:bg-primary-dark dark:border-primary-dark shadow-dropdown overflow-hidden rounded-lg w-80 max-h-[calc(100vh-8rem)]"
+          className="border border-primary bg-primary dark:bg-primary-dark dark:border-primary-dark shadow-dropdown overflow-hidden rounded-lg min-w-80 max-h-[--radix-select-content-available-height]"
         >
           <SelectBase.ScrollUpButton
             className={scrollIndicator({ position: "top" })}
diff --git a/src/application/components/Tooltip/Tooltip.tsx b/src/application/components/Tooltip/Tooltip.tsx
index c9c6b2568..9392a9fad 100644
--- a/src/application/components/Tooltip/Tooltip.tsx
+++ b/src/application/components/Tooltip/Tooltip.tsx
@@ -21,7 +21,7 @@ export function Tooltip({
       <Portal>
         <Content
           sideOffset={4}
-          className="shadow-popovers border rounded bg-black dark:bg-black-dark border-black dark:border-black-dark py-1 px-2 text-white dark:text-white-dark text-sm font-body"
+          className="shadow-popovers border rounded bg-black dark:bg-black-dark border-black dark:border-black-dark py-1 px-2 text-white dark:text-white-dark text-sm font-body max-w-72"
           side={side}
         >
           {content}
diff --git a/src/application/index.tsx b/src/application/index.tsx
index 8ab408a58..7ce8568bb 100755
--- a/src/application/index.tsx
+++ b/src/application/index.tsx
@@ -58,6 +58,9 @@ const cache = new InMemoryCache({
         cache: {
           merge: false,
         },
+        memoryInternals: {
+          merge: false,
+        },
       },
     },
     ClientQueries: {
diff --git a/src/application/localSchema.graphql b/src/application/localSchema.graphql
index 3d55a36bd..348d56446 100644
--- a/src/application/localSchema.graphql
+++ b/src/application/localSchema.graphql
@@ -18,6 +18,16 @@ type Query {
   client(id: ID!): Client
 }
 
+type BaseCacheSizes {
+  fragmentQueryDocuments: CacheSize!
+}
+
+type CacheSize {
+  key: String!
+  limit: Int
+  size: Int
+}
+
 type Client {
   id: String!
   name: String
@@ -25,6 +35,7 @@ type Client {
   queries: ClientQueries!
   mutations: ClientMutations!
   cache: Cache!
+  memoryInternals: MemoryInternals
 }
 
 type ClientQueries {
@@ -37,6 +48,56 @@ type ClientMutations {
   items: [WatchedMutation!]!
 }
 
+type DocumentTransformCacheSizes {
+  cache: CacheSize!
+}
+
+type FragmentRegistryCacheSizes {
+  lookup: CacheSize!
+  findFragmentSpreads: CacheSize!
+  transform: CacheSize!
+}
+
+type InMemoryCacheSizes {
+  maybeBroadcastWatch: CacheSize!
+  executeSelectionSet: CacheSize!
+  executeSubSelectedArray: CacheSize!
+}
+
+union LinkCacheSize =
+  | PersistedQueryLinkCacheSizes
+  | RemoveTypenameFromVariablesLinkCacheSizes
+
+type MemoryInternals {
+  raw: JSON
+  caches: MemoryInternalsCaches!
+}
+
+type MemoryInternalsCaches {
+  print: CacheSize!
+  parser: CacheSize!
+  canonicalStringify: CacheSize!
+  links: [LinkCacheSize!]!
+  queryManager: QueryManagerCacheSizes!
+  fragmentRegistry: FragmentRegistryCacheSizes!
+  cache: BaseCacheSizes!
+  addTypenameDocumentTransform: [DocumentTransformCacheSizes!]
+  inMemoryCache: InMemoryCacheSizes!
+}
+
+type QueryManagerCacheSizes {
+  getDocumentInfo: CacheSize!
+  documentTransforms: [DocumentTransformCacheSizes!]
+}
+
+type PersistedQueryLinkCacheSizes {
+  persistedQueryHashes: CacheSize!
+}
+
+type RemoveTypenameFromVariablesLinkCacheSizes {
+  getVariableDefinitions: CacheSize!
+}
+
 type WatchedMutation {
   id: ID!
   name: String
diff --git a/src/application/schema.ts b/src/application/schema.ts
index d58a662fc..1345db416 100644
--- a/src/application/schema.ts
+++ b/src/application/schema.ts
@@ -1,7 +1,11 @@
 import type { RpcClient } from "../extension/rpc";
 import typeDefs from "./localSchema.graphql";
 import { makeExecutableSchema } from "@graphql-tools/schema";
-import type { Resolvers } from "./types/resolvers";
+import type {
+  Resolvers,
+  PersistedQueryLinkCacheSizes,
+  RemoveTypenameFromVariablesLinkCacheSizes,
+} from "./types/resolvers";
 import { getOperationName } from "@apollo/client/utilities";
 import { print } from "graphql";
 
@@ -24,6 +28,93 @@ function createResolvers(client: RpcClient): Resolvers {
       queries: (client) => client,
       mutations: (client) => client,
       cache: (client) => rpcClient.request("getCache", client.id),
+      memoryInternals: async (client) => {
+        const memoryInternals = await rpcClient.request(
+          "getMemoryInternals",
+          client.id
+        );
+
+        if (!memoryInternals) {
+          return null;
+        }
+
+        const sizes = memoryInternals.sizes;
+        const limits = memoryInternals.limits;
+
+        return {
+          raw: memoryInternals,
+          caches: {
+            print: getCacheSize("print", sizes.print, limits),
+            parser: getCacheSize("parser", sizes.parser, limits),
+            canonicalStringify: getCacheSize(
+              "canonicalStringify",
+              sizes.canonicalStringify,
+              limits
+            ),
+            links: sizes.links
+              .map((linkCache) => getLinkCacheSize(linkCache, limits))
+              .filter(Boolean),
+            queryManager: {
+              getDocumentInfo: getCacheSize(
+                "queryManager.getDocumentInfo",
+                sizes.queryManager.getDocumentInfo,
+                limits
+              ),
+              documentTransforms: getDocumentTransformCacheSizes(
+                sizes.queryManager.documentTransforms,
+                limits
+              ),
+            },
+            fragmentRegistry: {
+              lookup: getCacheSize(
+                "fragmentRegistry.lookup",
+                sizes.fragmentRegistry?.lookup,
+                limits
+              ),
+              findFragmentSpreads: getCacheSize(
+                "fragmentRegistry.findFragmentSpreads",
+                sizes.fragmentRegistry?.findFragmentSpreads,
+                limits
+              ),
+              transform: getCacheSize(
+                "fragmentRegistry.transform",
+                sizes.fragmentRegistry?.transform,
+                limits
+              ),
+            },
+            cache: {
+              fragmentQueryDocuments: getCacheSize(
+                "cache.fragmentQueryDocuments",
+                sizes.cache?.fragmentQueryDocuments,
+                limits
+              ),
+            },
+            addTypenameDocumentTransform: sizes.addTypenameDocumentTransform
+              ? getDocumentTransformCacheSizes(
+                  sizes.addTypenameDocumentTransform,
+                  limits
+                )
+              : null,
+            inMemoryCache: {
+              maybeBroadcastWatch: getCacheSize(
+                "inMemoryCache.maybeBroadcastWatch",
+                sizes.inMemoryCache?.maybeBroadcastWatch,
+                limits
+              ),
+              executeSelectionSet: getCacheSize(
+                "inMemoryCache.executeSelectionSet",
+                sizes.inMemoryCache?.executeSelectionSet,
+                limits
+              ),
+              executeSubSelectedArray: getCacheSize(
+                "inMemoryCache.executeSubSelectedArray",
+                sizes.inMemoryCache?.executeSubSelectedArray,
+                limits
+              ),
+            },
+          },
+        };
+      },
     },
     ClientQueries: {
       total: (client) => client.queryCount,
@@ -79,3 +170,84 @@ function createResolvers(client: RpcClient): Resolvers {
     },
   };
 }
+
+type MemoryLimits = Record<string, number | undefined>;
+
+function getCacheSize(
+  key: string,
+  size: number | undefined,
+  limits: MemoryLimits
+) {
+  return { key, size: size ?? null, limit: limits[key] ?? null };
+}
+
+function getDocumentTransformCacheSizes(
+  caches: Array<{ cache: number }>,
+  limits: MemoryLimits
+) {
+  return caches.map(({ cache }) => ({
+    cache: getCacheSize("documentTransform.cache", cache, limits),
+  }));
+}
+
+interface PersistedQueryLinkCache {
+  PersistedQueryLink: {
+    persistedQueryHashes: number;
+  };
+}
+
+function isPersistedQueryLinkCache(
+  cache: unknown
+): cache is PersistedQueryLinkCache {
+  return (
+    typeof cache === "object" && cache !== null && "PersistedQueryLink" in cache
+  );
+}
+
+interface RemoveTypenameFromVariablesLinkCache {
+  removeTypenameFromVariables: {
+    getVariableDefinitions: number;
+  };
+}
+
+function isRemoveTypenameFromVariablesLinkCache(
+  cache: unknown
+): cache is RemoveTypenameFromVariablesLinkCache {
+  return (
+    typeof cache === "object" &&
+    cache !== null &&
+    "removeTypenameFromVariables" in cache
+  );
+}
+
+function getLinkCacheSize(
+  linkCache: unknown,
+  limits: MemoryLimits
+):
+  | PersistedQueryLinkCacheSizes
+  | RemoveTypenameFromVariablesLinkCacheSizes
+  | null {
+  if (isPersistedQueryLinkCache(linkCache)) {
+    return {
+      __typename: "PersistedQueryLinkCacheSizes",
+      persistedQueryHashes: getCacheSize(
+        "PersistedQueryLink.persistedQueryHashes",
+        linkCache.PersistedQueryLink.persistedQueryHashes,
+        limits
+      ),
+    } satisfies PersistedQueryLinkCacheSizes;
+  }
+
+  if (isRemoveTypenameFromVariablesLinkCache(linkCache)) {
+    return {
+      __typename: "RemoveTypenameFromVariablesLinkCacheSizes",
+      getVariableDefinitions: getCacheSize(
+        "removeTypenameFromVariables.getVariableDefinitions",
+        linkCache.removeTypenameFromVariables.getVariableDefinitions,
+        limits
+      ),
+    } satisfies RemoveTypenameFromVariablesLinkCacheSizes;
+  }
+
+  return null;
+}
diff --git a/src/application/types/gql.ts b/src/application/types/gql.ts
index 42a8e4788..f5561d2ca 100644
--- a/src/application/types/gql.ts
+++ b/src/application/types/gql.ts
@@ -43,10 +43,23 @@ export type Scalars = {
   Variables: { input: Variables; output: Variables };
 };
 
+export type BaseCacheSizes = {
+  __typename: "BaseCacheSizes";
+  fragmentQueryDocuments: CacheSize;
+};
+
+export type CacheSize = {
+  __typename: "CacheSize";
+  key: Scalars["String"]["output"];
+  limit: Maybe<Scalars["Int"]["output"]>;
+  size: Maybe<Scalars["Int"]["output"]>;
+};
+
 export type Client = {
   __typename: "Client";
   cache: Scalars["Cache"]["output"];
   id: Scalars["String"]["output"];
+  memoryInternals: Maybe<MemoryInternals>;
   mutations: ClientMutations;
   name: Maybe<Scalars["String"]["output"]>;
   queries: ClientQueries;
@@ -65,12 +78,59 @@ export type ClientQueries = {
   total: Scalars["Int"]["output"];
 };
 
+export type DocumentTransformCacheSizes = {
+  __typename: "DocumentTransformCacheSizes";
+  cache: CacheSize;
+};
+
+export type FragmentRegistryCacheSizes = {
+  __typename: "FragmentRegistryCacheSizes";
+  findFragmentSpreads: CacheSize;
+  lookup: CacheSize;
+  transform: CacheSize;
+};
+
 export type GraphQLErrorSourceLocation = {
   __typename: "GraphQLErrorSourceLocation";
   column: Scalars["Int"]["output"];
   line: Scalars["Int"]["output"];
 };
 
+export type InMemoryCacheSizes = {
+  __typename: "InMemoryCacheSizes";
+  executeSelectionSet: CacheSize;
+  executeSubSelectedArray: CacheSize;
+  maybeBroadcastWatch: CacheSize;
+};
+
+export type LinkCacheSize =
+  | PersistedQueryLinkCacheSizes
+  | RemoveTypenameFromVariablesLinkCacheSizes;
+
+export type MemoryInternals = {
+  __typename: "MemoryInternals";
+  caches: MemoryInternalsCaches;
+  raw: Maybe<Scalars["JSON"]["output"]>;
+};
+
+export type MemoryInternalsCaches = {
+  __typename: "MemoryInternalsCaches";
+  addTypenameDocumentTransform: Maybe<Array<DocumentTransformCacheSizes>>;
+  cache: BaseCacheSizes;
+  canonicalStringify: CacheSize;
+  fragmentRegistry: FragmentRegistryCacheSizes;
+  inMemoryCache: InMemoryCacheSizes;
+  links: Array<LinkCacheSize>;
+  parser: CacheSize;
+  print: CacheSize;
+  queryManager: QueryManagerCacheSizes;
+};
+
+export type PersistedQueryLinkCacheSizes = {
+  __typename: "PersistedQueryLinkCacheSizes";
+  persistedQueryHashes: CacheSize;
+};
+
 export type Query = {
   __typename: "Query";
   client: Maybe<Client>;
@@ -81,6 +141,17 @@ export type QueryclientArgs = {
   id: Scalars["ID"]["input"];
 };
 
+export type QueryManagerCacheSizes = {
+  __typename: "QueryManagerCacheSizes";
+  documentTransforms: Maybe<Array<DocumentTransformCacheSizes>>;
+  getDocumentInfo: CacheSize;
+};
+
+export type RemoveTypenameFromVariablesLinkCacheSizes = {
+  __typename: "RemoveTypenameFromVariablesLinkCacheSizes";
+  getVariableDefinitions: CacheSize;
+};
+
 export type SerializedApolloError = {
   __typename: "SerializedApolloError";
   clientErrors: Array<Scalars["String"]["output"]>;
@@ -183,6 +254,148 @@ export type GetCache = {
   client: { __typename: "Client"; id: string; cache: Cache } | null;
 };
 
+export type MemoryInternalsQueryVariables = Exact<{
+  clientId: Scalars["ID"]["input"];
+}>;
+
+export type MemoryInternalsQuery = {
+  client: {
+    __typename: "Client";
+    id: string;
+    version: string;
+    memoryInternals: {
+      __typename: "MemoryInternals";
+      raw: JSON | null;
+      caches: {
+        __typename: "MemoryInternalsCaches";
+        print: {
+          __typename: "CacheSize";
+          key: string;
+          size: number | null;
+          limit: number | null;
+        };
+        parser: {
+          __typename: "CacheSize";
+          key: string;
+          size: number | null;
+          limit: number | null;
+        };
+        canonicalStringify: {
+          __typename: "CacheSize";
+          key: string;
+          size: number | null;
+          limit: number | null;
+        };
+        links: Array<
+          | {
+              __typename: "PersistedQueryLinkCacheSizes";
+              persistedQueryHashes: {
+                __typename: "CacheSize";
+                key: string;
+                size: number | null;
+                limit: number | null;
+              };
+            }
+          | {
+              __typename: "RemoveTypenameFromVariablesLinkCacheSizes";
+              getVariableDefinitions: {
+                __typename: "CacheSize";
+                key: string;
+                size: number | null;
+                limit: number | null;
+              };
+            }
+        >;
+        queryManager: {
+          __typename: "QueryManagerCacheSizes";
+          getDocumentInfo: {
+            __typename: "CacheSize";
+            key: string;
+            size: number | null;
+            limit: number | null;
+          };
+          documentTransforms: Array<{
+            __typename: "DocumentTransformCacheSizes";
+            cache: {
+              __typename: "CacheSize";
+              key: string;
+              size: number | null;
+              limit: number | null;
+            };
+          }> | null;
+        };
+        fragmentRegistry: {
+          __typename: "FragmentRegistryCacheSizes";
+          lookup: {
+            __typename: "CacheSize";
+            key: string;
+            size: number | null;
+            limit: number | null;
+          };
+          findFragmentSpreads: {
+            __typename: "CacheSize";
+            key: string;
+            size: number | null;
+            limit: number | null;
+          };
+          transform: {
+            __typename: "CacheSize";
+            key: string;
+            size: number | null;
+            limit: number | null;
+          };
+        };
+        cache: {
+          __typename: "BaseCacheSizes";
+          fragmentQueryDocuments: {
+            __typename: "CacheSize";
+            key: string;
+            size: number | null;
+            limit: number | null;
+          };
+        };
+        addTypenameDocumentTransform: Array<{
+          __typename: "DocumentTransformCacheSizes";
+          cache: {
+            __typename: "CacheSize";
+            key: string;
+            size: number | null;
+            limit: number | null;
+          };
+        }> | null;
+        inMemoryCache: {
+          __typename: "InMemoryCacheSizes";
+          maybeBroadcastWatch: {
+            __typename: "CacheSize";
+            key: string;
+            size: number | null;
+            limit: number | null;
+          };
+          executeSelectionSet: {
+            __typename: "CacheSize";
+            key: string;
+            size: number | null;
+            limit: number | null;
+          };
+          executeSubSelectedArray: {
+            __typename: "CacheSize";
+            key: string;
+            size: number | null;
+            limit: number | null;
+          };
+        };
+      };
+    } | null;
+  } | null;
+};
+
+export type CacheSizeFields = {
+  __typename: "CacheSize";
+  key: string;
+  size: number | null;
+  limit: number | null;
+};
+
 export type GetMutationsVariables = Exact<{
   id: Scalars["ID"]["input"];
 }>;
diff --git a/src/application/types/resolvers.ts b/src/application/types/resolvers.ts
index 5b0c412d8..774852f66 100644
--- a/src/application/types/resolvers.ts
+++ b/src/application/types/resolvers.ts
@@ -56,10 +56,23 @@ export type Scalars = {
   Variables: { input: Variables; output: Variables };
 };
 
+export type BaseCacheSizes = {
+  __typename?: "BaseCacheSizes";
+  fragmentQueryDocuments: CacheSize;
+};
+
+export type CacheSize = {
+  __typename?: "CacheSize";
+  key: Scalars["String"]["output"];
+  limit?: Maybe<Scalars["Int"]["output"]>;
+  size?: Maybe<Scalars["Int"]["output"]>;
+};
+
 export type Client = {
   __typename?: "Client";
   cache: Scalars["Cache"]["output"];
   id: Scalars["String"]["output"];
+  memoryInternals?: Maybe<MemoryInternals>;
   mutations: ClientMutations;
   name?: Maybe<Scalars["String"]["output"]>;
   queries: ClientQueries;
@@ -78,12 +91,59 @@ export type ClientQueries = {
   total: Scalars["Int"]["output"];
 };
 
+export type DocumentTransformCacheSizes = {
+  __typename?: "DocumentTransformCacheSizes";
+  cache: CacheSize;
+};
+
+export type FragmentRegistryCacheSizes = {
+  __typename?: "FragmentRegistryCacheSizes";
+  findFragmentSpreads: CacheSize;
+  lookup: CacheSize;
+  transform: CacheSize;
+};
+
 export type GraphQlErrorSourceLocation = {
   __typename?: "GraphQLErrorSourceLocation";
   column: Scalars["Int"]["output"];
   line: Scalars["Int"]["output"];
 };
 
+export type InMemoryCacheSizes = {
+  __typename?: "InMemoryCacheSizes";
+  executeSelectionSet: CacheSize;
+  executeSubSelectedArray: CacheSize;
+  maybeBroadcastWatch: CacheSize;
+};
+
+export type LinkCacheSize =
+  | PersistedQueryLinkCacheSizes
+  | RemoveTypenameFromVariablesLinkCacheSizes;
+
+export type MemoryInternals = {
+  __typename?: "MemoryInternals";
+  caches: MemoryInternalsCaches;
+  raw?: Maybe<Scalars["JSON"]["output"]>;
+};
+
+export type MemoryInternalsCaches = {
+  __typename?: "MemoryInternalsCaches";
+  addTypenameDocumentTransform?: Maybe<Array<DocumentTransformCacheSizes>>;
+  cache: BaseCacheSizes;
+  canonicalStringify: CacheSize;
+  fragmentRegistry: FragmentRegistryCacheSizes;
+  inMemoryCache: InMemoryCacheSizes;
+  links: Array<LinkCacheSize>;
+  parser: CacheSize;
+  print: CacheSize;
+  queryManager: QueryManagerCacheSizes;
+};
+
+export type PersistedQueryLinkCacheSizes = {
+  __typename?: "PersistedQueryLinkCacheSizes";
+  persistedQueryHashes: CacheSize;
+};
+
 export type Query = {
   __typename?: "Query";
   client?: Maybe<Client>;
@@ -94,6 +154,17 @@ export type QueryClientArgs = {
   id: Scalars["ID"]["input"];
 };
 
+export type QueryManagerCacheSizes = {
+  __typename?: "QueryManagerCacheSizes";
+  documentTransforms?: Maybe<Array<DocumentTransformCacheSizes>>;
+  getDocumentInfo: CacheSize;
+};
+
+export type RemoveTypenameFromVariablesLinkCacheSizes = {
+  __typename?: "RemoveTypenameFromVariablesLinkCacheSizes";
+  getVariableDefinitions: CacheSize;
+};
+
 export type SerializedApolloError = {
   __typename?: "SerializedApolloError";
   clientErrors: Array<Scalars["String"]["output"]>;
@@ -257,24 +328,44 @@ export type DirectiveResolverFn<
 
 /** Mapping of union types */
 export type ResolversUnionTypes<_RefType extends Record<string, unknown>> = {
+  LinkCacheSize:
+    | PersistedQueryLinkCacheSizes
+    | RemoveTypenameFromVariablesLinkCacheSizes;
   WatchedMutationError: RpcSerializedApolloError | RpcSerializedError;
 };
 
 /** Mapping between all available schema types and the resolvers types */
 export type ResolversTypes = {
+  BaseCacheSizes: ResolverTypeWrapper<BaseCacheSizes>;
   Boolean: ResolverTypeWrapper<Scalars["Boolean"]["output"]>;
   Cache: ResolverTypeWrapper<Scalars["Cache"]["output"]>;
+  CacheSize: ResolverTypeWrapper<CacheSize>;
   Client: ResolverTypeWrapper<ApolloClientInfo>;
   ClientMutations: ResolverTypeWrapper<ApolloClientInfo>;
   ClientQueries: ResolverTypeWrapper<ApolloClientInfo>;
+  DocumentTransformCacheSizes: ResolverTypeWrapper<DocumentTransformCacheSizes>;
+  FragmentRegistryCacheSizes: ResolverTypeWrapper<FragmentRegistryCacheSizes>;
   GraphQLErrorPath: ResolverTypeWrapper<Scalars["GraphQLErrorPath"]["output"]>;
   GraphQLErrorSourceLocation: ResolverTypeWrapper<GraphQlErrorSourceLocation>;
   ID: ResolverTypeWrapper<Scalars["ID"]["output"]>;
+  InMemoryCacheSizes: ResolverTypeWrapper<InMemoryCacheSizes>;
   Int: ResolverTypeWrapper<Scalars["Int"]["output"]>;
   JSON: ResolverTypeWrapper<Scalars["JSON"]["output"]>;
+  LinkCacheSize: ResolverTypeWrapper<
+    ResolversUnionTypes<ResolversTypes>["LinkCacheSize"]
+  >;
+  MemoryInternals: ResolverTypeWrapper<MemoryInternals>;
+  MemoryInternalsCaches: ResolverTypeWrapper<
+    Omit<MemoryInternalsCaches, "links"> & {
+      links: Array<ResolversTypes["LinkCacheSize"]>;
+    }
+  >;
+  PersistedQueryLinkCacheSizes: ResolverTypeWrapper<PersistedQueryLinkCacheSizes>;
   Query: ResolverTypeWrapper<never>;
   QueryData: ResolverTypeWrapper<Scalars["QueryData"]["output"]>;
+  QueryManagerCacheSizes: ResolverTypeWrapper<QueryManagerCacheSizes>;
   QueryOptions: ResolverTypeWrapper<Scalars["QueryOptions"]["output"]>;
+  RemoveTypenameFromVariablesLinkCacheSizes: ResolverTypeWrapper<RemoveTypenameFromVariablesLinkCacheSizes>;
   SerializedApolloError: ResolverTypeWrapper<RpcSerializedApolloError>;
   SerializedError: ResolverTypeWrapper<RpcSerializedError>;
   SerializedGraphQLError: ResolverTypeWrapper<GraphQLFormattedError>;
@@ -302,19 +393,32 @@ export type ResolversTypes = {
 
 /** Mapping between all available schema types and the resolvers parents */
 export type ResolversParentTypes = {
+  BaseCacheSizes: BaseCacheSizes;
   Boolean: Scalars["Boolean"]["output"];
   Cache: Scalars["Cache"]["output"];
+  CacheSize: CacheSize;
   Client: ApolloClientInfo;
   ClientMutations: ApolloClientInfo;
   ClientQueries: ApolloClientInfo;
+  DocumentTransformCacheSizes: DocumentTransformCacheSizes;
+  FragmentRegistryCacheSizes: FragmentRegistryCacheSizes;
   GraphQLErrorPath: Scalars["GraphQLErrorPath"]["output"];
   GraphQLErrorSourceLocation: GraphQlErrorSourceLocation;
   ID: Scalars["ID"]["output"];
+  InMemoryCacheSizes: InMemoryCacheSizes;
   Int: Scalars["Int"]["output"];
   JSON: Scalars["JSON"]["output"];
+  LinkCacheSize: ResolversUnionTypes<ResolversParentTypes>["LinkCacheSize"];
+  MemoryInternals: MemoryInternals;
+  MemoryInternalsCaches: Omit<MemoryInternalsCaches, "links"> & {
+    links: Array<ResolversParentTypes["LinkCacheSize"]>;
+  };
+  PersistedQueryLinkCacheSizes: PersistedQueryLinkCacheSizes;
   Query: never;
   QueryData: Scalars["QueryData"]["output"];
+  QueryManagerCacheSizes: QueryManagerCacheSizes;
   QueryOptions: Scalars["QueryOptions"]["output"];
+  RemoveTypenameFromVariablesLinkCacheSizes: RemoveTypenameFromVariablesLinkCacheSizes;
   SerializedApolloError: RpcSerializedApolloError;
   SerializedError: RpcSerializedError;
   SerializedGraphQLError: GraphQLFormattedError;
@@ -332,11 +436,35 @@ export type ResolversParentTypes = {
   };
 };
 
+export type BaseCacheSizesResolvers<
+  ContextType = any,
+  ParentType extends
+    ResolversParentTypes["BaseCacheSizes"] = ResolversParentTypes["BaseCacheSizes"],
+> = {
+  fragmentQueryDocuments?: Resolver<
+    ResolversTypes["CacheSize"],
+    ParentType,
+    ContextType
+  >;
+  __isTypeOf?: IsTypeOfResolverFn<ParentType, ContextType>;
+};
+
 export interface CacheScalarConfig
   extends GraphQLScalarTypeConfig<ResolversTypes["Cache"], any> {
   name: "Cache";
 }
 
+export type CacheSizeResolvers<
+  ContextType = any,
+  ParentType extends
+    ResolversParentTypes["CacheSize"] = ResolversParentTypes["CacheSize"],
+> = {
+  key?: Resolver<ResolversTypes["String"], ParentType, ContextType>;
+  limit?: Resolver<Maybe<ResolversTypes["Int"]>, ParentType, ContextType>;
+  size?: Resolver<Maybe<ResolversTypes["Int"]>, ParentType, ContextType>;
+  __isTypeOf?: IsTypeOfResolverFn<ParentType, ContextType>;
+};
+
 export type ClientResolvers<
   ContextType = any,
   ParentType extends
@@ -344,6 +472,11 @@ export type ClientResolvers<
 > = {
   cache?: Resolver<ResolversTypes["Cache"], ParentType, ContextType>;
   id?: Resolver<ResolversTypes["String"], ParentType, ContextType>;
+  memoryInternals?: Resolver<
+    Maybe<ResolversTypes["MemoryInternals"]>,
+    ParentType,
+    ContextType
+  >;
   mutations?: Resolver<
     ResolversTypes["ClientMutations"],
     ParentType,
@@ -383,6 +516,30 @@ export type ClientQueriesResolvers<
   __isTypeOf?: IsTypeOfResolverFn<ParentType, ContextType>;
 };
 
+export type DocumentTransformCacheSizesResolvers<
+  ContextType = any,
+  ParentType extends
+    ResolversParentTypes["DocumentTransformCacheSizes"] = ResolversParentTypes["DocumentTransformCacheSizes"],
+> = {
+  cache?: Resolver<ResolversTypes["CacheSize"], ParentType, ContextType>;
+  __isTypeOf?: IsTypeOfResolverFn<ParentType, ContextType>;
+};
+
+export type FragmentRegistryCacheSizesResolvers<
+  ContextType = any,
+  ParentType extends
+    ResolversParentTypes["FragmentRegistryCacheSizes"] = ResolversParentTypes["FragmentRegistryCacheSizes"],
+> = {
+  findFragmentSpreads?: Resolver<
+    ResolversTypes["CacheSize"],
+    ParentType,
+    ContextType
+  >;
+  lookup?: Resolver<ResolversTypes["CacheSize"], ParentType, ContextType>;
+  transform?: Resolver<ResolversTypes["CacheSize"], ParentType, ContextType>;
+  __isTypeOf?: IsTypeOfResolverFn<ParentType, ContextType>;
+};
+
 export interface GraphQlErrorPathScalarConfig
   extends GraphQLScalarTypeConfig<ResolversTypes["GraphQLErrorPath"], any> {
   name: "GraphQLErrorPath";
@@ -398,11 +555,115 @@ export type GraphQlErrorSourceLocationResolvers<
   __isTypeOf?: IsTypeOfResolverFn<ParentType, ContextType>;
 };
 
+export type InMemoryCacheSizesResolvers<
+  ContextType = any,
+  ParentType extends
+    ResolversParentTypes["InMemoryCacheSizes"] = ResolversParentTypes["InMemoryCacheSizes"],
+> = {
+  executeSelectionSet?: Resolver<
+    ResolversTypes["CacheSize"],
+    ParentType,
+    ContextType
+  >;
+  executeSubSelectedArray?: Resolver<
+    ResolversTypes["CacheSize"],
+    ParentType,
+    ContextType
+  >;
+  maybeBroadcastWatch?: Resolver<
+    ResolversTypes["CacheSize"],
+    ParentType,
+    ContextType
+  >;
+  __isTypeOf?: IsTypeOfResolverFn<ParentType, ContextType>;
+};
+
 export interface JsonScalarConfig
   extends GraphQLScalarTypeConfig<ResolversTypes["JSON"], any> {
   name: "JSON";
 }
 
+export type LinkCacheSizeResolvers<
+  ContextType = any,
+  ParentType extends
+    ResolversParentTypes["LinkCacheSize"] = ResolversParentTypes["LinkCacheSize"],
+> = {
+  __resolveType: TypeResolveFn<
+    | "PersistedQueryLinkCacheSizes"
+    | "RemoveTypenameFromVariablesLinkCacheSizes",
+    ParentType,
+    ContextType
+  >;
+};
+
+export type MemoryInternalsResolvers<
+  ContextType = any,
+  ParentType extends
+    ResolversParentTypes["MemoryInternals"] = ResolversParentTypes["MemoryInternals"],
+> = {
+  caches?: Resolver<
+    ResolversTypes["MemoryInternalsCaches"],
+    ParentType,
+    ContextType
+  >;
+  raw?: Resolver<Maybe<ResolversTypes["JSON"]>, ParentType, ContextType>;
+  __isTypeOf?: IsTypeOfResolverFn<ParentType, ContextType>;
+};
+
+export type MemoryInternalsCachesResolvers<
+  ContextType = any,
+  ParentType extends
+    ResolversParentTypes["MemoryInternalsCaches"] = ResolversParentTypes["MemoryInternalsCaches"],
+> = {
+  addTypenameDocumentTransform?: Resolver<
+    Maybe<Array<ResolversTypes["DocumentTransformCacheSizes"]>>,
+    ParentType,
+    ContextType
+  >;
+  cache?: Resolver<ResolversTypes["BaseCacheSizes"], ParentType, ContextType>;
+  canonicalStringify?: Resolver<
+    ResolversTypes["CacheSize"],
+    ParentType,
+    ContextType
+  >;
+  fragmentRegistry?: Resolver<
+    ResolversTypes["FragmentRegistryCacheSizes"],
+    ParentType,
+    ContextType
+  >;
+  inMemoryCache?: Resolver<
+    ResolversTypes["InMemoryCacheSizes"],
+    ParentType,
+    ContextType
+  >;
+  links?: Resolver<
+    Array<ResolversTypes["LinkCacheSize"]>,
+    ParentType,
+    ContextType
+  >;
+  parser?: Resolver<ResolversTypes["CacheSize"], ParentType, ContextType>;
+  print?: Resolver<ResolversTypes["CacheSize"], ParentType, ContextType>;
+  queryManager?: Resolver<
+    ResolversTypes["QueryManagerCacheSizes"],
+    ParentType,
+    ContextType
+  >;
+  __isTypeOf?: IsTypeOfResolverFn<ParentType, ContextType>;
+};
+
+export type PersistedQueryLinkCacheSizesResolvers<
+  ContextType = any,
+  ParentType extends
+    ResolversParentTypes["PersistedQueryLinkCacheSizes"] = ResolversParentTypes["PersistedQueryLinkCacheSizes"],
+> = {
+  persistedQueryHashes?: Resolver<
+    ResolversTypes["CacheSize"],
+    ParentType,
+    ContextType
+  >;
+  __isTypeOf?: IsTypeOfResolverFn<ParentType, ContextType>;
+};
+
 export type QueryResolvers<
   ContextType = any,
   ParentType extends
@@ -422,11 +683,42 @@ export interface QueryDataScalarConfig
   name: "QueryData";
 }
 
+export type QueryManagerCacheSizesResolvers<
+  ContextType = any,
+  ParentType extends
+    ResolversParentTypes["QueryManagerCacheSizes"] = ResolversParentTypes["QueryManagerCacheSizes"],
+> = {
+  documentTransforms?: Resolver<
+    Maybe<Array<ResolversTypes["DocumentTransformCacheSizes"]>>,
+    ParentType,
+    ContextType
+  >;
+  getDocumentInfo?: Resolver<
+    ResolversTypes["CacheSize"],
+    ParentType,
+    ContextType
+  >;
+  __isTypeOf?: IsTypeOfResolverFn<ParentType, ContextType>;
+};
+
 export interface QueryOptionsScalarConfig
   extends GraphQLScalarTypeConfig<ResolversTypes["QueryOptions"], any> {
   name: "QueryOptions";
 }
 
+export type RemoveTypenameFromVariablesLinkCacheSizesResolvers<
+  ContextType = any,
+  ParentType extends
+    ResolversParentTypes["RemoveTypenameFromVariablesLinkCacheSizes"] = ResolversParentTypes["RemoveTypenameFromVariablesLinkCacheSizes"],
+> = {
+  getVariableDefinitions?: Resolver<
+    ResolversTypes["CacheSize"],
+    ParentType,
+    ContextType
+  >;
+  __isTypeOf?: IsTypeOfResolverFn<ParentType, ContextType>;
+};
+
 export type SerializedApolloErrorResolvers<
   ContextType = any,
   ParentType extends
@@ -579,16 +871,27 @@ export type WatchedQueryResolvers<
 };
 
 export type Resolvers<ContextType = any> = {
+  BaseCacheSizes?: BaseCacheSizesResolvers<ContextType>;
   Cache?: GraphQLScalarType;
+  CacheSize?: CacheSizeResolvers<ContextType>;
   Client?: ClientResolvers<ContextType>;
   ClientMutations?: ClientMutationsResolvers<ContextType>;
   ClientQueries?: ClientQueriesResolvers<ContextType>;
+  DocumentTransformCacheSizes?: DocumentTransformCacheSizesResolvers<ContextType>;
+  FragmentRegistryCacheSizes?: FragmentRegistryCacheSizesResolvers<ContextType>;
   GraphQLErrorPath?: GraphQLScalarType;
   GraphQLErrorSourceLocation?: GraphQlErrorSourceLocationResolvers<ContextType>;
+  InMemoryCacheSizes?: InMemoryCacheSizesResolvers<ContextType>;
   JSON?: GraphQLScalarType;
+  LinkCacheSize?: LinkCacheSizeResolvers<ContextType>;
+  MemoryInternals?: MemoryInternalsResolvers<ContextType>;
+  MemoryInternalsCaches?: MemoryInternalsCachesResolvers<ContextType>;
+  PersistedQueryLinkCacheSizes?: PersistedQueryLinkCacheSizesResolvers<ContextType>;
   Query?: QueryResolvers<ContextType>;
   QueryData?: GraphQLScalarType;
+  QueryManagerCacheSizes?: QueryManagerCacheSizesResolvers<ContextType>;
   QueryOptions?: GraphQLScalarType;
+  RemoveTypenameFromVariablesLinkCacheSizes?: RemoveTypenameFromVariablesLinkCacheSizesResolvers<ContextType>;
   SerializedApolloError?: SerializedApolloErrorResolvers<ContextType>;
   SerializedError?: SerializedErrorResolvers<ContextType>;
   SerializedGraphQLError?: SerializedGraphQlErrorResolvers<ContextType>;
diff --git a/src/extension/rpc.ts b/src/extension/rpc.ts
index d9596d369..0a0ea6637 100644
--- a/src/extension/rpc.ts
+++ b/src/extension/rpc.ts
@@ -1,6 +1,11 @@
 import type { ErrorCodes } from "@apollo/client/invariantErrorCodes";
 import type { JSONObject } from "../application/types/json";
-import type { ApolloClientInfo, NoInfer, SafeAny } from "../types";
+import type {
+  ApolloClientInfo,
+  MemoryInternals,
+  NoInfer,
+  SafeAny,
+} from "../types";
 import { createId } from "../utils/createId";
 import { RPC_MESSAGE_TIMEOUT } from "./errorMessages";
 import { deserializeError, serializeError } from "./errorSerialization";
@@ -15,6 +20,7 @@ export type RPCRequest = {
   getMutations(clientId: string): MutationDetails[];
   getCache(clientId: string): JSONObject;
   getErrorCodes(version: string): Promise<ErrorCodes | undefined>;
+  getMemoryInternals(clientId: string): MemoryInternals | undefined;
 };
 
 export interface RpcClient {
diff --git a/src/extension/tab/hook.ts b/src/extension/tab/hook.ts
index d17d42f97..7fc00ae52 100755
--- a/src/extension/tab/hook.ts
+++ b/src/extension/tab/hook.ts
@@ -131,6 +131,10 @@ handleRpc("getCache", (clientId) => {
   return getClientById(clientId)?.cache.extract(true) ?? {};
 });
 
+handleRpc("getMemoryInternals", (clientId) => {
+  return getClientById(clientId)?.getMemoryInternals?.();
+});
+
 function getClientById(clientId: string) {
   const [client] =
     [...knownClients.entries()].find(([, id]) => id === clientId) ?? [];
diff --git a/src/extension/vscode/client.ts b/src/extension/vscode/client.ts
index deee8fe9d..2017709ae 100644
--- a/src/extension/vscode/client.ts
+++ b/src/extension/vscode/client.ts
@@ -110,8 +110,12 @@ function registerClient(
   function getMutationsForClient() {
     return getMutations(getClient()?.queryManager.mutationStore ?? {});
   }
+  function getMemoryInternalsForClient() {
+    return getClient()?.getMemoryInternals?.();
+  }
   wsRpcHandler("getQueries", getQueriesForClient, { signal });
   wsRpcHandler("getMutations", getMutationsForClient, { signal });
+  wsRpcHandler("getMemoryInternals", getMemoryInternalsForClient, { signal });
   wsRpcHandler("getCache", () => getClient()?.cache.extract(true) ?? {}, {
     signal,
   });
diff --git a/src/extension/vscode/server.ts b/src/extension/vscode/server.ts
index d31c16df8..113d7c31e 100644
--- a/src/extension/vscode/server.ts
+++ b/src/extension/vscode/server.ts
@@ -45,6 +45,10 @@ export function runServer(
     clients.get(id)!.rpcClient.request("getCache", id)
   );
 
+  handleRpc("getMemoryInternals", (id) =>
+    clients.get(id)!.rpcClient.request("getMemoryInternals", id)
+  );
+
   server.on("connection", function connection(ws) {
     let id: string | undefined;
     const wsAdapter = createSocketMessageAdapter(ws);
diff --git a/src/types.ts b/src/types.ts
index f18c0bc4a..b06968bf1 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -1,4 +1,4 @@
-import type { ApolloQueryResult } from "@apollo/client";
+import type { ApolloClient, ApolloQueryResult } from "@apollo/client";
 
 export type QueryResult = ApolloQueryResult<any>;
 
@@ -26,3 +26,7 @@ export interface ApolloClientInfo {
   queryCount: number;
   mutationCount: number;
 }
+
+export type MemoryInternals = ReturnType<
+  NonNullable<ApolloClient<unknown>["getMemoryInternals"]>
+>;
diff --git a/tsconfig.json b/tsconfig.json
index c358c632c..fbb27a3d0 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -14,7 +14,13 @@
     "strict": true,
     "forceConsistentCasingInFileNames": true,
     "declaration": true,
-    "outDir": "dist"
+    "outDir": "dist",
+    "plugins": [
+      {
+        "name": "@0no-co/graphqlsp",
+        "schema": "./src/application/localSchema.graphql"
+      }
+    ]
   },
   "$schema": "https://json.schemastore.org/tsconfig",
   "compileOnSave": true,