Let it look things up rather than putting it in search mode

Results announced themselves as the source, so a question it already knew got
answered by paraphrasing the first hit.

Plugin/unraid/include/ai_web.php

@@ -274,8 +274,18 @@ function vv_ai_web_search(string $question): array {
 // renumbering the other.
 function vv_ai_web_context(array $results, int $offset = 0): string {
     if (!$results) return '';
-    $s = "Web search results. These are from outside this installation — cite them by number, and\n"
-       . "say when something is a general answer rather than one about this machine.\n\n";
+    // Framed as reference material, not as the answer. The search runs whenever the box is
+    // ticked, because a search is one HTTP request and deciding to run it would cost a whole
+    // extra generation — but running it must not mean leaning on it. Answering a question the
+    // model already knows by paraphrasing the first search result is worse than answering it
+    // directly, and it was doing that because the results announced themselves as the source.
+    $s = "Reference material from a web search, in case it is useful. It is from outside this\n"
+       . "installation and nothing here has been verified against this machine.\n\n"
+       . "Answer from what you already know when you know it. Reach for these when you do not,\n"
+       . "when the question turns on something current, or when a specific version, release or\n"
+       . "figure needs checking rather than recalling. Cite by number only what you actually\n"
+       . "used, ignore the rest, and never imply the web was consulted about this installation —\n"
+       . "it was not. Say plainly when an answer is general rather than about this machine.\n\n";
     foreach ($results as $i => $r) {
         $s .= '[' . ($offset + $i + 1) . '] ' . $r['title'] . ' — ' . $r['url'] . "\n"
             . $r['snippet'] . "\n\n";