bug fixes, and performance improvements, and drawer

server/api/topic/[topicId]/chat/index.post.ts

@@ -433,7 +433,21 @@ async function generateResponse(
 
     if (search) {
         tools.search = tool({
-            description: 'Searches the web. Choose how many results to return on every call using the required results argument.',
+            description: `Searches the web. Choose how many results to return on every call using the required results argument.
+
+CITATION FORMAT:
+Every result includes a sourceId. Cite supporting results immediately after the claim using this exact construction:
+"[[cite:" + the result's sourceId + "]]"
+The prefix "cite:" is mandatory literal text. Copy the sourceId unchanged after that prefix. Do not output the word "sourceId" as a placeholder.
+
+Example: if a result has sourceId "sd625ebbd4d3544e4914f5a51840d7632":
+CORRECT: The report describes rising prices. [[cite:sd625ebbd4d3544e4914f5a51840d7632]]
+INCORRECT: The report describes rising prices. [[sd625ebbd4d3544e4914f5a51840d7632]]
+The incorrect form is missing "cite:" and will not render as a citation.
+
+For multiple sources, put their exact IDs after a single "cite:" prefix, separated by commas without spaces: [[cite:ID_FROM_FIRST_RESULT,ID_FROM_SECOND_RESULT]]. Replace both placeholders with returned sourceId values. Separate complete citations are also valid: [[cite:ID_FROM_FIRST_RESULT]] [[cite:ID_FROM_SECOND_RESULT]].
+Use only IDs returned by searches during this response; never invent IDs or copy the example ID unless it actually appears in a result. Write citation markers directly in answer text, not inside backticks or code blocks. Do not repeat URLs or add footnote definitions for these citations.
+Search snippets are excerpts, not full-page reads.`,
             inputSchema: searchInputSchema,
             outputSchema: searchOutputSchema,
             execute: async ({ query, results }) => {
@@ -652,6 +666,7 @@ async function generateResponse(
                                 partId: part.id,
                                 lastUpdatedAt: new Date(),
                                 content: token.text,
+                                offset: part.accumulatedContent.length - token.text.length,
                             }
                         })
                     }
@@ -1244,7 +1259,8 @@ async function generateResponse(
             }
         })
     } finally {
+        topicEvents.clearLiveText(topicId, message.id);
         completeGeneration(generationId);
         if (logFile !== undefined) logFile.close();
     }
-}
+}