diff --git a/.Jules/palette.md b/.Jules/palette.md
new file mode 100644
index 000000000..bd997f482
--- /dev/null
+++ b/.Jules/palette.md
@@ -0,0 +1,4 @@
+## 2026-10-17 - Icon-only Button Accessibility
+
+**Learning:** Missing aria-labels on icon-only buttons (like theme toggles and inline add buttons) is a recurring accessibility issue in server-rendered Rust templates. Title attributes alone are insufficient.
+**Action:** Always explicitly check for and add aria-label attributes to empty buttons when modifying server-rendered templates in pkgs/id/src/web/templates.rs.
diff --git a/pkgs/id/src/blob_gate.rs b/pkgs/id/src/blob_gate.rs
index d8d207fd6..e64b3bdd3 100644
--- a/pkgs/id/src/blob_gate.rs
+++ b/pkgs/id/src/blob_gate.rs
@@ -125,10 +125,7 @@ pub struct FoldedWorlds {
 impl FoldedWorlds {
     /// Pairs the folded worlds with a reference index.
     pub const fn new(worlds: Worlds, references: HashMap<Hash, BTreeSet<String>>) -> Self {
-        Self {
-            worlds,
-            references,
-        }
+        Self { worlds, references }
     }
 }
 
diff --git a/pkgs/id/src/web/mod.rs b/pkgs/id/src/web/mod.rs
index c6731d804..fccd4c190 100644
--- a/pkgs/id/src/web/mod.rs
+++ b/pkgs/id/src/web/mod.rs
@@ -115,7 +115,7 @@ impl SaveRateLimiter {
         if let Some(last) = map.get(name) {
             let elapsed = last.elapsed();
             if elapsed < self.cooldown {
-                return Err(self.cooldown.checked_sub(elapsed).unwrap());
+                return Err(self.cooldown.checked_sub(elapsed).unwrap_or(Duration::from_secs(0)));
             }
         }
         Ok(())
diff --git a/pkgs/id/src/web/templates.rs b/pkgs/id/src/web/templates.rs
index a052af54f..76c609938 100644
--- a/pkgs/id/src/web/templates.rs
+++ b/pkgs/id/src/web/templates.rs
@@ -93,9 +93,9 @@ pub fn render_main_page_wrapper(content: &str) -> String {
     html.push_str("            <a href=\"/peers\" data-nav class=\"crt-glow\">peers</a>\n");
     html.push_str("            <a href=\"/settings\" data-nav class=\"crt-glow\">settings</a>\n");
     html.push_str("            <span class=\"flex items-center gap-1\">\n");
-    html.push_str("                <button class=\"theme-btn\" data-theme=\"sneak\" title=\"Sneak theme\"></button>\n");
-    html.push_str("                <button class=\"theme-btn\" data-theme=\"arch\" title=\"Arch theme\"></button>\n");
-    html.push_str("                <button class=\"theme-btn\" data-theme=\"mech\" title=\"Mech theme\"></button>\n");
+    html.push_str("                <button class=\"theme-btn\" data-theme=\"sneak\" title=\"Sneak theme\" aria-label=\"Sneak theme\"></button>\n");
+    html.push_str("                <button class=\"theme-btn\" data-theme=\"arch\" title=\"Arch theme\" aria-label=\"Arch theme\"></button>\n");
+    html.push_str("                <button class=\"theme-btn\" data-theme=\"mech\" title=\"Mech theme\" aria-label=\"Mech theme\"></button>\n");
     html.push_str("            </span>\n");
     html.push_str("        </nav>\n");
     html.push_str("    </header>\n");
@@ -458,9 +458,9 @@ pub fn render_editor(doc_id: &str, name: &str, content: &str, hash: &str) -> Str
     html.push_str("            <a href=\"/peers\" data-nav>peers</a>\n");
     html.push_str("            <a href=\"/settings\" data-nav>settings</a>\n");
     html.push_str("            <span class=\"flex items-center gap-1\">\n");
-    html.push_str("                <button class=\"theme-btn\" data-theme=\"sneak\" title=\"Sneak theme\"></button>\n");
-    html.push_str("                <button class=\"theme-btn\" data-theme=\"arch\" title=\"Arch theme\"></button>\n");
-    html.push_str("                <button class=\"theme-btn\" data-theme=\"mech\" title=\"Mech theme\"></button>\n");
+    html.push_str("                <button class=\"theme-btn\" data-theme=\"sneak\" title=\"Sneak theme\" aria-label=\"Sneak theme\"></button>\n");
+    html.push_str("                <button class=\"theme-btn\" data-theme=\"arch\" title=\"Arch theme\" aria-label=\"Arch theme\"></button>\n");
+    html.push_str("                <button class=\"theme-btn\" data-theme=\"mech\" title=\"Mech theme\" aria-label=\"Mech theme\"></button>\n");
     html.push_str("            </span>\n");
     html.push_str("        </nav>\n");
     html.push_str("    </div>\n");
@@ -474,7 +474,7 @@ pub fn render_editor(doc_id: &str, name: &str, content: &str, hash: &str) -> Str
     html.push_str("        <span class=\"flex items-center gap-1\" id=\"tag-add-inline\">\n");
     html.push_str("            <input type=\"text\" id=\"tag-add-key\" class=\"input input-bordered input-xs w-20 bg-base-100\" placeholder=\"key\" />\n");
     html.push_str("            <input type=\"text\" id=\"tag-add-value\" class=\"input input-bordered input-xs w-20 bg-base-100\" placeholder=\"value\" />\n");
-    html.push_str("            <button class=\"btn btn-ghost btn-xs font-mono\" onclick=\"window.idApp?.addTagInline?.()\">+</button>\n");
+    html.push_str("            <button class=\"btn btn-ghost btn-xs font-mono\" aria-label=\"Add tag\" onclick=\"window.idApp?.addTagInline?.()\">+</button>\n");
     html.push_str("        </span>\n");
     html.push_str("    </div>\n");