Merge branch 'main' into dev

 Conflicts:
	refact-agent/gui/src/components/ChatForm/ChatForm.tsx
	refact-agent/gui/src/hooks/index.ts
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	git update-ref -d MERGE_HEAD
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 On branch dev
 Your branch is up to date with 'origin/dev'.
 All conflicts fixed but you are still merging.
 Changes to be committed:
	modified:   src/components/ChatForm/ChatForm.tsx
	modified:   src/hooks/useSendChatRequest.ts
	new file:   src/hooks/useTotalTokenUsage.ts

 Changes not staged for commit:
	modified:   src/components/ChatForm/ChatForm.tsx

Author: MarcMcIntosh

refact-agent/gui/src/components/ChatForm/ChatForm.tsx

@@ -34,6 +34,7 @@ import { useInputValue } from "./useInputValue";
 import {
   clearInformation,
   getInformationMessage,
+  setInformation,
 } from "../../features/Errors/informationSlice";
 import { InformationCallout } from "../Callout/Callout";
 import { ToolConfirmation } from "./ToolConfirmation";

refact-agent/gui/src/hooks/useSendChatRequest.ts

@@ -355,6 +355,7 @@ export function useAutoSend() {
   const sendImmediately = useAppSelector(selectSendImmediately);
   const wasInteracted = useAppSelector(getToolsInteractionStatus); // shows if tool confirmation popup was interacted by user
   const areToolsConfirmed = useAppSelector(getToolsConfirmationStatus);
+
   const { sendMessages, abort, messagesWithSystemPrompt } =
     useSendChatRequest();
   // TODO: make a selector for this, or show tool formation

refact-agent/gui/src/hooks/useTotalTokenUsage.ts

@@ -0,0 +1,47 @@
+import { useMemo } from "react";
+import { useAppSelector } from "./useAppSelector";
+import { isAssistantMessage } from "../events";
+import { selectMessages } from "../features/Chat";
+import { type Usage } from "../services/refact/chat";
+import {
+  calculateUsageInputTokens,
+  mergeUsages,
+} from "../utils/calculateUsageInputTokens";
+
+const TOKEN_LIMIT = 200_000;
+export function useTotalTokenUsage() {
+  const messages = useAppSelector(selectMessages);
+
+  const summedUsages = useMemo(() => {
+    const usages = messages.reduce<Usage[]>((acc, message) => {
+      if (isAssistantMessage(message) && message.usage) {
+        return [...acc, message.usage];
+      }
+      return acc;
+    }, []);
+    return mergeUsages(usages);
+  }, [messages]);
+
+  const tokens = useMemo(() => {
+    if (!summedUsages) return 0;
+    return calculateUsageInputTokens({
+      keys: [
+        "prompt_tokens",
+        "cache_creation_input_tokens",
+        "cache_read_input_tokens",
+      ],
+      usage: summedUsages,
+    });
+  }, [summedUsages]);
+
+  const limitReached = useMemo(() => {
+    return tokens >= TOKEN_LIMIT;
+  }, [tokens]);
+
+  return {
+    summedUsages,
+    tokens,
+    limitReached,
+    limit: TOKEN_LIMIT,
+  };
+}