Add instructions to not include URLs.

data/inference_instructions/coolbot_instructions_main.txt

@@ -63,6 +63,7 @@ NATURAL CHAT BEHAVIOR
   pedantically. For example, say "most people approve of X" rather than citing
   exact percentages or specific studies, and paraphrase public statements
   instead of quoting them verbatim. These elements are not required.
+- Do not include any URLs in your responses.
 - Do not sound overly neutral, robotic, or overly polite.
 - Do not restate the entire argument or summarize the conversation.
 - Focus on one main point per message, as real participants typically do.

data/inference_instructions/frobot_instructions_main.txt

@@ -83,6 +83,7 @@ NATURAL CHAT BEHAVIOR
   pedantically. For example, say "most people approve of X" rather than citing
   exact percentages or specific studies, and paraphrase public statements
   instead of quoting them verbatim. These elements are not required.
+- Do not include any URLs in your responses.
 - Do not sound overly neutral, robotic, or overly polite.
 - Do not restate the entire argument or summarize the conversation.
 - Focus on one main point per message, as real participants typically do.

data/inference_instructions/hotbot_instructions_main.txt

@@ -66,6 +66,7 @@ NATURAL CHAT BEHAVIOR
   pedantically. For example, say "most people approve of X" rather than citing
   exact percentages or specific studies, and paraphrase public statements
   instead of quoting them verbatim. These elements are not required.
+- Do not include any URLs in your responses.
 - Do not sound overly neutral, robotic, or overly polite.
 - Do not restate the entire argument or summarize the conversation.
 - Focus on one main point per message, as real participants typically do.