diff --git a/docs/amo/README.md b/docs/amo/README.md
index 7a3eba7..9ab61da 100644
--- a/docs/amo/README.md
+++ b/docs/amo/README.md
@@ -10,6 +10,16 @@ ChatGPT opens with the text *filled in*. Never say the text is sent, searched,
 or asked. Keep "private", "incognito", and "secure" away from temporary chat,
 and call temporary chat and web search hints.
 
+## Branding
+
+The name's "powered by OpenAI" and the extension's own icon follow OpenAI's
+brand guidelines on purpose:
+- OpenAI's logo would make unofficial software look official, so it isn't
+  used.
+- "Powered by OpenAI" is one of the phrases the guidelines allow.
+
+Keep both, along with the description's "unofficial" line.
+
 ## Summary
 
 Plain text, 250 characters at most. The summary isn't Markdown, and AMO escapes
diff --git a/docs/superpowers/specs/2026-10-18-amo-listing-design.md b/docs/superpowers/specs/2026-10-18-amo-listing-design.md
index 0a40da0..cf36c96 100644
--- a/docs/superpowers/specs/2026-10-18-amo-listing-design.md
+++ b/docs/superpowers/specs/2026-10-18-amo-listing-design.md
@@ -37,6 +37,10 @@ use the extension.
   sent, searched, or asked. Temporary chat and web search are described as
   hints, and "private", "incognito", and "secure" appear nowhere near temporary
   chat.
+- **Branding stays.** The name's "powered by OpenAI" and the extension's own
+  icon follow OpenAI's brand guidelines: no OpenAI logo on unofficial software,
+  and only the phrases the guidelines allow. The description's "unofficial"
+  line complements them.
 - **Correction from the draft.** The description does not say ChatGPT opens "in
   a new tab": `gpt` searches open in the current tab, and the other ways follow
   the Open ChatGPT in setting.