{"messages":[{"content":"You are a constitutional council ranking individual git commits for ownership allocation.\n\nCompare these two commits. Decide which contributed more lasting value to the project.\n\nJudge substance, not spectacle:\n- Prefer correct, lasting design and real bugfixes over churn, formatting, renames, or generated noise.\n- Prefer clarity and necessity over sheer line count. A small precise change can beat a large diffuse one.\n- Do not favor a side merely because its patch is longer or noisier.\n- Weight what the change does for the project, not the contributor's name.\n\nReturn ONLY a JSON object: {\"winner\": \"A\" or \"B\", \"ratio\": \"N:M\", \"explanation\": \"...\"}\nThe explanation must cite concrete differences in the patches (1-3 sentences).\n\nSide A — contributor: tommy-mor\nSide A — commit message:\n[04b81f91] Fix vote compare highlighting\n\nCo-authored-by: Cursor <cursoragent@cursor.com>\n\nSide A — unified diff (full patch):\ndiff --git a/server/src/html/mod.rs b/server/src/html/mod.rs\nindex 588cf62bcea608ed4ede363810f022a67b43b960..e180a0ca542a33e2300c0a4809e6b9cfee07ecfe 100644\n--- a/server/src/html/mod.rs\n+++ b/server/src/html/mod.rs\n@@ -291,18 +291,17 @@ fn rank_list(\n     label: &str,\n     items: &[RankedItem],\n     start_rank: usize,\n-    total_ranked: usize,\n-    ordinal_offset: usize,\n     highlighted: &HashSet<ItemId>,\n     tree: &GlobalTree,\n ) -> Markup {\n+    let group_len = items.len();\n     html! {\n         @if !items.is_empty() {\n             h3 class=\"rank-heading muted small\" { (label) }\n             ol class=\"rank-list\" {\n                 @for (i, r) in items.iter().enumerate() {\n                     @let href = item_href(&r.item);\n-                    @let style = rank_row_style(parent, ordinal_offset + i, total_ranked);\n+                    @let style = rank_row_style(parent, i, group_len);\n                     @let class = rank_row_class(&r.item, highlighted);\n                     li class=(class)\n                         data-rank-item=(r.item.as_str())\n@@ -420,8 +419,6 @@ pub fn ranking_panel_with_highlights(\n \n     let has_ranked = !ranked_groups.is_empty();\n     let multi = ranked_groups.len() > 1;\n-    let total_ranked: usize = ranked_groups.iter().map(|g| g.len()).sum();\n-    let mut ordinal_offset = 0usize;\n \n     html! {\n         section id=\"ranking-panel\" class=\"demo-panel\" {\n@@ -436,8 +433,7 @@ pub fn ranking_panel_with_highlights(\n             } @else {\n                 @for (gi, ranked) in ranked_groups.iter().enumerate() {\n                     @let label = if multi { format!(\"Ranking group {}\", gi + 1) } else { \"Ranking\".to_string() };\n-                    (rank_list(item, &label, ranked, 1, total_ranked, ordinal_offset, highlighted, tree))\n-                    @let _ = { ordinal_offset += ranked.len(); };\n+                    (rank_list(item, &label, ranked, 1, highlighted, tree))\n                 }\n                 (unranked_list(\"Unranked\", &unranked, highlighted, tree))\n             }\n@@ -520,7 +516,20 @@ pub async fn browse(State(state): State<AppState>, uri: Uri) -> impl IntoRespons\n \n #[cfg(test)]\n mod tests {\n-    use super::SORTER_UI_JS;\n+    use super::{rank_row_style, SORTER_UI_JS};\n+    use crate::path_types::ItemId;\n+\n+    #[test]\n+    fn rank_row_style_gradients_per_group_not_globally() {\n+        let parent = ItemId::opaque(\"test-scope\");\n+        let first_in_four = rank_row_style(&parent, 0, 4);\n+        let last_in_four = rank_row_style(&parent, 3, 4);\n+        let first_in_two = rank_row_style(&parent, 0, 2);\n+        let last_in_two = rank_row_style(&parent, 1, 2);\n+        assert_eq!(first_in_four, first_in_two);\n+        assert_eq!(last_in_four, last_in_two);\n+        assert_ne!(first_in_four, last_in_four);\n+    }\n \n     #[test]\n     fn vote_slider_left_position_favors_left_item() {\ndiff --git a/server/src/html/vote.rs b/server/src/html/vote.rs\nindex 483c7ff8cd35266744957cf0087f2b5f76f1a237..30dab303b9d1e763a5b9261dffff13a778e3e4e3 100644\n--- a/server/src/html/vote.rs\n+++ b/server/src/html/vote.rs\n@@ -19,7 +19,7 @@ use crate::{\n     ui_action::UI_RPC_FIELD,\n };\n \n-use super::{breadcrumb_path, item_href, layout};\n+use super::{breadcrumb_path, layout};\n \n #[derive(Debug, Deserialize)]\n pub struct VoteQuery {\n@@ -59,17 +59,6 @@ fn child_title(tree: &GlobalTree, id: &ItemId) -> String {\n         .unwrap_or_else(|| display_label(id))\n }\n \n-fn ratio_pct(ratio_left: i32, ratio_right: i32) -> f64 {\n-    let l = ratio_left.max(0) as f64;\n-    let r = ratio_right.max(0) as f64;\n-    let sum = l + r;\n-    if sum <= 0.0 {\n-        50.0\n-    } else {\n-        (l / sum) * 100.0\n-    }\n-}\n-\n fn ratios_for_page(v: &VoteData, page_left: &ItemId, page_right: &ItemId) -> (i32, i32) {\n     match (v.a.as_str(), v.b.as_str()) {\n         (a, b) if a == page_left.as_str() && b == page_right.as_str() => {\n@@ -94,6 +83,37 @@ fn edge_votes(group: &GroupState, left: &ItemId, right: &ItemId) -> Vec<VoteData\n         .collect()\n }\n \n+/// HUD `data-winner` value: which side the ratio favours on this page.\n+fn winner_side(r_left: i32, r_right: i32) -> &'static str {\n+    if r_left > r_right {\n+        \"left\"\n+    } else if r_right > r_left {\n+        \"right\"\n+    } else {\n+        \"even\"\n+    }\n+}\n+\n+fn winner_text(r_left: i32, r_right: i32) -> &'static str {\n+    match winner_side(r_left, r_right) {\n+        \"left\" => \"left wins\",\n+        \"right\" => \"right wins\",\n+        _ => \"tie\",\n+    }\n+}\n+\n+/// Map stored ratios to the live slider position (0 = full left, 100 = full right).\n+/// Matches `sorter_ui.js`: `left = 100 - v`, `right = v`.\n+fn slider_value_from_ratios(r_left: i32, r_right: i32) -> i32 {\n+    let l = r_left.max(0) as f64;\n+    let r = r_right.max(0) as f64;\n+    let sum = l + r;\n+    if sum <= 0.0 {\n+        return 50;\n+    }\n+    ((r / sum) * 100.0).round().clamp(0.0, 100.0) as i32\n+}\n+\n fn vote_edge_history(tree: &GlobalTree, group: &GroupState, left: &ItemId, right: &ItemId) -> Markup {\n     let mut votes = edge_votes(group, left, right);\n     votes.sort_by(|a, b| b.ts.cmp(&a.ts));\n@@ -106,17 +126,26 @@ fn vote_edge_history(tree: &GlobalTree, group: &GroupState, left: &ItemId, right\n             h3 class=\"vote-edge-history-title\" {\n                 \"votes on this pair\"\n             }\n+            p class=\"muted small vote-edge-legend\" {\n+                (format!(\"left: {legend_left} — right: {legend_right}\"))\n+            }\n             ul class=\"vote-edge-history\" {\n                 @for v in &votes {\n                     @let (r_left, r_right) = ratios_for_page(v, left, right);\n-                    @let pct = ratio_pct(r_left, r_right);\n+                    @let slider_val = slider_value_from_ratios(r_left, r_right);\n+                    @let side = winner_side(r_left, r_right);\n+                    @let label = winner_text(r_left, r_right);\n                     li class=\"vote-edge-history-row\" {\n                         div class=\"vote-edge-meta\" {\n                             span class=\"vote-edge-ratio\" { (format!(\"{}:{}\", r_left, r_right)) }\n+                            span class=\"vote-edge-winner muted small\" { \" · \" (label) }\n                         }\n-                        div class=\"ratio-bar vote-edge-bar\" aria-hidden=\"true\" {\n-                            div class=\"ratio-left\" style={(format!(\"width: {:.3}%;\", pct))} {}\n-                            div class=\"ratio-right\" style={(format!(\"width: {:.3}%;\", 100.0 - pct))} {}\n+                        label class=\"vote-hud-slider vote-edge-slider\" aria-hidden=\"true\" {\n+                            input type=\"range\" class=\"vote-edge-range\" min=\"0\" max=\"100\" value=(slider_val)\n+                                data-winner=(side)\n+                                style={(format!(\"--vote-slider-pct: {}%;\", slider_val))}\n+                                disabled\n+                                tabindex=\"-1\";\n                         }\n                     }\n                 }\n@@ -283,7 +312,6 @@ pub async fn vote_page(\n                         span class=\"vote-compare-vs\" { \"vs\" }\n                         (vote_compare_item_card(&tree, &right, \"vote-compare-right\"))\n                     }\n-                    (vote_back_nav(&parent))\n                     div id=\"vote-edge-history-region\" {\n                         (edge_history)\n                     }\n@@ -308,3 +336,66 @@ pub async fn vote_page(\n     )\n     .into_response()\n }\n+\n+#[cfg(test)]\n+mod polarity_tests {\n+    use super::*;\n+    use crate::ranking::ranked_items;\n+    use crate::reducer::GlobalTree;\n+\n+    fn id(s: &str) -> ItemId {\n+        ItemId::parse(s).unwrap()\n+    }\n+\n+    /// The page's left number must always equal the vote's weight for the\n+    /// item shown on the left, regardless of which order the vote stored a/b.\n+    #[test]\n+    fn ratios_for_page_orients_to_page_left() {\n+        let left = id(\"left_item\");\n+        let right = id(\"right_item\");\n+\n+        // Stored a == page left: keep order.\n+        let v1 = VoteData::from_recorded(1, left.as_str(), right.as_str(), 9, 1).unwrap();\n+        assert_eq!(ratios_for_page(&v1, &left, &right), (9, 1));\n+\n+        // Stored a == page right: swap so left stays left.\n+        let v2 = VoteData::from_recorded(2, right.as_str(), left.as_str(), 9, 1).unwrap();\n+        assert_eq!(ratios_for_page(&v2, &left, &right), (1, 9));\n+    }\n+\n+    #[test]\n+    fn winner_side_follows_larger_ratio() {\n+        assert_eq!(winner_side(9, 1), \"left\");\n+        assert_eq!(winner_side(1, 9), \"right\");\n+        assert_eq!(winner_side(1, 1), \"even\");\n+    }\n+\n+    #[test]\n+    fn slider_value_matches_hud_mapping() {\n+        assert_eq!(slider_value_from_ratios(9, 1), 10);\n+        assert_eq!(slider_value_from_ratios(1, 4), 80);\n+        assert_eq!(slider_value_from_ratios(1, 1), 50);\n+    }\n+\n+    /// End-to-end polarity invariant: a vote that favours the LEFT item (higher\n+    /// `ratio_left`, recorded as the RPC's `a`) must make that item rank #1.\n+    /// This is the property the UI must preserve: sliding left => left wins.\n+    #[test]\n+    fn sliding_left_makes_left_item_win_ranking() {\n+        let parent = id(\"scope\");\n+        let left = id(\"left_item\");\n+        let right = id(\"right_item\");\n+\n+        // Slider dragged left yields e.g. 9:1 with a = left item.\n+        let vote = VoteData::from_recorded(1, left.as_str(), right.as_str(), 9, 1).unwrap();\n+        let mut tree = GlobalTree::new();\n+        tree.apply_vote(&parent, vote);\n+\n+        let group = &tree.get(&parent).unwrap().local_ranking;\n+        let ranked = ranked_items(group);\n+        assert_eq!(\n+            ranked[0].item, left,\n+            \"left item should rank first when ratio favours the left\"\n+        );\n+    }\n+}\ndiff --git a/server/static/sorter.css b/server/static/sorter.css\nindex 5da967e8bfddc2bc34662fced841860f63f1ef36..bdd3d931365703705be08537a07f3ccaf975d3ea 100644\n--- a/server/static/sorter.css\n+++ b/server/static/sorter.css\n@@ -124,7 +124,7 @@ code {\n   z-index: 1;\n   box-shadow:\n     inset 0 0 0 3px var(--accent),\n-    inset 0 0 0 5px color-mix(in oklch, var(--rank-fg) 70%, transparent);\n+    inset 0 0 0 5px color-mix(in oklch, var(--rank-fg, var(--fg)) 70%, transparent);\n   filter: saturate(1.15) brightness(1.04);\n }\n \n@@ -320,7 +320,7 @@ h1 {\n   grid-template-columns: var(--vote-ratio-col) minmax(0, 1fr) var(--vote-actions-col);\n   gap: 0.5rem 0.65rem;\n   align-items: center;\n-  --vote-ratio-col: 3.25rem;\n+  --vote-ratio-col: 12.5rem;\n   --vote-actions-col: 11.5rem;\n }\n \n@@ -332,7 +332,7 @@ h1 {\n   margin: 0;\n   width: var(--vote-ratio-col);\n   min-width: var(--vote-ratio-col);\n-  text-align: center;\n+  text-align: right;\n   white-space: nowrap;\n }\n \n@@ -474,6 +474,16 @@ h1 {\n   --vote-track-muted: color-mix(in oklch, var(--muted) 55%, var(--bg));\n }\n \n+/* Center-anchored fill: the accent grows from the midpoint toward the thumb,\n+   so the highlighted mass always sits on the *winning* side (the side the\n+   thumb was dragged toward). Left winning => accent on the left half. */\n+.vote-hud-slider input[type=\"range\"][data-winner=\"even\"]::-webkit-slider-runnable-track {\n+  height: 0.65rem;\n+  border-radius: 0;\n+  border: 2px solid var(--border);\n+  background: var(--vote-track-muted);\n+}\n+\n .vote-hud-slider input[type=\"range\"][data-winner=\"left\"]::-webkit-slider-runnable-track {\n   height: 0.65rem;\n   border-radius: 0;\n@@ -483,7 +493,9 @@ h1 {\n     var(--vote-track-muted) 0%,\n     var(--vote-track-muted) var(--vote-slider-pct, 50%),\n     var(--accent) var(--vote-slider-pct, 50%),\n-    var(--accent) 100%\n+    var(--accent) 50%,\n+    var(--vote-track-muted) 50%,\n+    var(--vote-track-muted) 100%\n   );\n }\n \n@@ -493,7 +505,9 @@ h1 {\n   border: 2px solid var(--border);\n   background: linear-gradient(\n     to right,\n-    var(--accent) 0%,\n+    var(--vote-track-muted) 0%,\n+    var(--vote-track-muted) 50%,\n+    var(--accent) 50%,\n     var(--accent) var(--vote-slider-pct, 50%),\n     var(--vote-track-muted) var(--vote-slider-pct, 50%),\n     var(--vote-track-muted) 100%\n@@ -513,26 +527,35 @@ h1 {\n }\n \n .vote-hud-slider input[type=\"range\"][data-winner=\"left\"]::-moz-range-track,\n-.vote-hud-slider input[type=\"range\"][data-winner=\"right\"]::-moz-range-track {\n+.vote-hud-slider input[type=\"range\"][data-winner=\"right\"]::-moz-range-track,\n+.vote-hud-slider input[type=\"range\"][data-winner=\"even\"]::-moz-range-track {\n   height: 0.65rem;\n   border-radius: 0;\n   border: 2px solid var(--border);\n }\n \n+.vote-hud-slider input[type=\"range\"][data-winner=\"even\"]::-moz-range-track {\n+  background: var(--vote-track-muted);\n+}\n+\n .vote-hud-slider input[type=\"range\"][data-winner=\"left\"]::-moz-range-track {\n   background: linear-gradient(\n     to right,\n     var(--vote-track-muted) 0%,\n     var(--vote-track-muted) var(--vote-slider-pct, 50%),\n     var(--accent) var(--vote-slider-pct, 50%),\n-    var(--accent) 100%\n+    var(--accent) 50%,\n+    var(--vote-track-muted) 50%,\n+    var(--vote-track-muted) 100%\n   );\n }\n \n .vote-hud-slider input[type=\"range\"][data-winner=\"right\"]::-moz-range-track {\n   background: linear-gradient(\n     to right,\n-    var(--accent) 0%,\n+    var(--vote-track-muted) 0%,\n+    var(--vote-track-muted) 50%,\n+    var(--accent) 50%,\n     var(--accent) var(--vote-slider-pct, 50%),\n     var(--vote-track-muted) var(--vote-slider-pct, 50%),\n     var(--vote-track-muted) 100%\n@@ -573,20 +596,23 @@ h1 {\n   margin-bottom: 0.25rem;\n }\n \n-.ratio-bar {\n-  display: flex;\n-  height: 8px;\n-  border-radius: 0;\n-  overflow: hidden;\n-  background: var(--border);\n+/* Read-only sliders in vote history — same track/thumb styling as the HUD. */\n+.vote-edge-slider {\n+  display: block;\n+  margin-top: 0.15rem;\n }\n \n-.ratio-left {\n-  background: var(--accent);\n+.vote-edge-slider input[type=\"range\"] {\n+  pointer-events: none;\n+  cursor: default;\n+}\n+\n+.vote-edge-slider input[type=\"range\"]:disabled {\n+  opacity: 1;\n }\n \n-.ratio-right {\n-  background: var(--muted);\n+.vote-edge-legend {\n+  margin: 0 0 0.5rem;\n }\n \n @media (max-width: 900px) {\ndiff --git a/server/static/sorter_ui.js b/server/static/sorter_ui.js\nindex f665b45f4fd4771427dc4c37e563e4976873beee..5d6d765f69f301722e59248c76e919043559fb78 100644\n--- a/server/static/sorter_ui.js\n+++ b/server/static/sorter_ui.js\n@@ -138,6 +138,10 @@\n     function update() {\n       var v = parseInt(slider.value, 10);\n       if (!Number.isFinite(v)) v = 50;\n+      // Slider position drives the colored fill (a center-anchored bar that\n+      // grows toward whichever side is winning — see sorter.css). Sliding the\n+      // thumb left raises the left number; left winning keeps the accent mass\n+      // on the left, matching the \"votes on this pair\" history bars.\n       slider.style.setProperty('--vote-slider-pct', v + '%');\n       slider.setAttribute('aria-valuenow', String(v));\n       var left = Math.max(1, 100 - v);\n@@ -147,8 +151,12 @@\n       right = right / divisor;\n       if (leftInput) leftInput.value = String(left);\n       if (rightInput) rightInput.value = String(right);\n-      if (ratioDisplay) ratioDisplay.textContent = left + ':' + right;\n-      slider.dataset.winner = left >= right ? 'left' : 'right';\n+      var winner = left > right ? 'left' : (right > left ? 'right' : 'even');\n+      slider.dataset.winner = winner;\n+      if (ratioDisplay) {\n+        var label = winner === 'even' ? 'tie' : (winner + ' wins');\n+        ratioDisplay.textContent = left + ':' + right + ' \\u00b7 ' + label;\n+      }\n     }\n     slider.addEventListener('input', update);\n     update();\n\n\nSide B — contributor: tommy-mor\nSide B — commit message:\n[6b6eb0c3] Auth form: poem JS morphs form innerHTML on response; no redirect\n\n- post_choose_username returns HTML fragments instead of redirects:\n  success → auth_signed_in_fragment (\"you're signed in — return to your agent\")\n  error   → choose_username_error_fragment (form re-rendered with error inline)\n- Poem JS now reads response body; if non-empty, morphs form innerHTML with it\n  (existing ingest forms return empty body, so they're unaffected)\n- auth.rs: keep full layout() with poem JS — revert to single layout\n- auth-success CSS class added to both themes\n\nCo-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>\n\nSide B — unified diff (full patch):\ndiff --git a/server/src/api/auth.rs b/server/src/api/auth.rs\nindex c1194f79fd89fb47fe6b425b494a0ffa667abb2d..cb0faa29b834931e2c2b2f5c174c875e2e2e9346 100644\n--- a/server/src/api/auth.rs\n+++ b/server/src/api/auth.rs\n@@ -16,7 +16,7 @@ use crate::{\n         canonicalize_username, validate_agent_format, validate_username,\n         Event, TokenIssued, UserRegistered,\n     },\n-    html::{auth_complete_page, choose_username_page},\n+    html::{auth_complete_page, auth_signed_in_fragment, choose_username_error_fragment, choose_username_page},\n     state::{AppState, PendingSession},\n };\n \n@@ -274,8 +274,6 @@ pub async fn post_choose_username(\n         return api_error(StatusCode::BAD_REQUEST, \"invalid agent format\", Some(msg)).into_response();\n     }\n \n-    let public_url = std::env::var(\"SLUG_PUBLIC_URL\").unwrap_or_else(|_| \"http://127.0.0.1:8080\".to_string());\n-\n     let reduced_arc = state.reduced.clone();\n     let reduced = reduced_arc.read().await;\n     let provider_key = (provider.to_lowercase(), provider_id.clone());\n@@ -284,11 +282,7 @@ pub async fn post_choose_username(\n     }\n     if reduced.users_by_provider.values().any(|u| u == &canonicalize_username(&form.username)) {\n         drop(reduced);\n-        return Redirect::to(&format!(\n-            \"{public_url}/auth/choose-username?session={}&error={}\",\n-            urlencoding::encode(&form.session),\n-            urlencoding::encode(\"that username is taken — try another\"),\n-        )).into_response();\n+        return choose_username_error_fragment(&form.session, \"that username is taken — try another\").into_response();\n     }\n     drop(reduced);\n \n@@ -324,7 +318,7 @@ pub async fn post_choose_username(\n         s.complete = Some((canon_user.clone(), bearer.clone()));\n     }\n \n-    Redirect::to(&format!(\"{public_url}/auth/complete\")).into_response()\n+    auth_signed_in_fragment().into_response()\n }\n \n pub async fn post_pending_session(\ndiff --git a/server/src/html/auth.rs b/server/src/html/auth.rs\nindex 40b1ef30a6c1d4063aa2d8e9c93df8972df4b27c..0a14bdbfb66c65d1bd09993ffd4a7bb6f2fe041e 100644\n--- a/server/src/html/auth.rs\n+++ b/server/src/html/auth.rs\n@@ -1,20 +1,25 @@\n-use maud::{html, Markup, DOCTYPE};\n+use maud::{html, Markup};\n \n-/// Minimal layout for auth pages — no JS interceptor, real form navigation works.\n-fn auth_layout(title: &str, body: Markup) -> Markup {\n+fn form_inner(session: &str, error: Option<&str>) -> Markup {\n     html! {\n-        (DOCTYPE)\n-        html {\n-            head {\n-                meta charset=\"utf-8\";\n-                meta name=\"viewport\" content=\"width=device-width, initial-scale=1\";\n-                title { (title) }\n-                link rel=\"stylesheet\" href=\"/static/theme_default.css\";\n-            }\n-            body class=\"view-auth\" {\n-                (body)\n-            }\n+        input type=\"hidden\" name=\"session\" value=(session);\n+        label for=\"username\" { \"username\" }\n+        input\n+            type=\"text\"\n+            id=\"username\"\n+            name=\"username\"\n+            placeholder=\"e.g. alice\"\n+            pattern=\"[a-z0-9_\\\\-]{1,32}\"\n+            maxlength=\"32\"\n+            autocomplete=\"off\"\n+            autofocus;\n+        p.auth-hint {\n+            \"lowercase · alphanumeric · hyphens · underscores · max 32\"\n         }\n+        @if let Some(msg) = error {\n+            p.auth-error { (msg) }\n+        }\n+        button type=\"submit\" { \"continue\" }\n     }\n }\n \n@@ -28,27 +33,23 @@ pub fn choose_username_page(session: &str, error: Option<&str>) -> Markup {\n         h1 { \"choose a username\" }\n         p { \"pick a handle for slug.social.\" }\n         form.auth-form method=\"POST\" action=\"/auth/choose-username\" {\n-            input type=\"hidden\" name=\"session\" value=(session);\n-            label for=\"username\" { \"username\" }\n-            input\n-                type=\"text\"\n-                id=\"username\"\n-                name=\"username\"\n-                placeholder=\"e.g. alice\"\n-                pattern=\"[a-z0-9_\\\\-]{1,32}\"\n-                maxlength=\"32\"\n-                autocomplete=\"off\"\n-                autofocus;\n-            p.auth-hint {\n-                \"lowercase · alphanumeric · hyphens · underscores · max 32\"\n-            }\n-            @if let Some(msg) = error {\n-                p.auth-error { (msg) }\n-            }\n-            button type=\"submit\" { \"continue\" }\n+            (form_inner(session, error))\n         }\n     };\n-    auth_layout(\"join — slug.social\", body)\n+    super::layout(\"join — slug.social\", \"view-auth\", body, None)\n+}\n+\n+/// Fragment returned to the poem JS on error — replaces the form's innerHTML.\n+pub fn choose_username_error_fragment(session: &str, error: &str) -> Markup {\n+    form_inner(session, Some(error))\n+}\n+\n+/// Fragment returned to the poem JS on success — replaces the form's innerHTML.\n+pub fn auth_signed_in_fragment() -> Markup {\n+    html! {\n+        p.auth-success { \"you're signed in — return to your agent.\" }\n+        p.auth-hint { \"you can close this tab.\" }\n+    }\n }\n \n pub fn auth_complete_page() -> Markup {\n@@ -62,5 +63,5 @@ pub fn auth_complete_page() -> Markup {\n         p { \"Return to your terminal — your agent is polling and will collect your token automatically.\" }\n         p.auth-hint { \"You can close this tab.\" }\n     };\n-    auth_layout(\"signed in — slug.social\", body)\n+    super::layout(\"signed in — slug.social\", \"view-auth\", body, None)\n }\ndiff --git a/server/src/html/mod.rs b/server/src/html/mod.rs\nindex 2f16d701962d703db0c859bb586dfc08ec385690..8b48a25cce79f0eefc7e29849e1a667cae4c7986 100644\n--- a/server/src/html/mod.rs\n+++ b/server/src/html/mod.rs\n@@ -15,7 +15,7 @@ mod search;\n mod tree;\n use breadcrumb_path::OntologyPath;\n \n-pub use auth::{auth_complete_page, choose_username_page};\n+pub use auth::{auth_complete_page, auth_signed_in_fragment, choose_username_error_fragment, choose_username_page};\n pub use editor::{editor_check, editor_page};\n pub use forum::{index, thread_feed_html, thread_post_expand, thread_post_view, thread_view};\n pub use garden::{garden_index, ontology_path};\n@@ -114,6 +114,8 @@ script { (maud::PreEscaped(r#\"\n                         });\n \n                         // Poem: intercept POST forms, send via fetch, await SSE for DOM update.\n+                        // If the response body is non-empty HTML, morph the form's innerHTML with it\n+                        // (used for inline feedback without a page reload, e.g. auth forms).\n                         document.addEventListener('submit', async (e) => {\n                             const f = e.target;\n                             if (!f || f.tagName !== 'FORM') return;\n@@ -121,14 +123,19 @@ script { (maud::PreEscaped(r#\"\n                             e.preventDefault();\n                             const btn = f.querySelector('button[type=\"submit\"], input[type=\"submit\"]');\n                             if (btn) { btn.disabled = true; btn.textContent = '…'; }\n-                            await fetch(f.action, {\n+                            const resp = await fetch(f.action, {\n                                 method: 'POST',\n                                 body: new URLSearchParams(new FormData(f)),\n                                 headers: { 'Content-Type': 'application/x-www-form-urlencoded' },\n                                 credentials: 'same-origin',\n                             });\n-                            if (btn) { btn.disabled = false; btn.textContent = 'submit'; }\n-                            f.reset();\n+                            const html = await resp.text();\n+                            if (html && html.trim()) {\n+                                Idiomorph.morph(f, html, {morphStyle: 'innerHTML'});\n+                            } else {\n+                                if (btn) { btn.disabled = false; btn.textContent = 'submit'; }\n+                                f.reset();\n+                            }\n                         });\n \n                         // Search: debounced fetch + idiomorph.\ndiff --git a/server/static/theme_default.css b/server/static/theme_default.css\nindex 9e71574da4bed3a0116c347610636780678bd1af..a1d8d1765a7812191edc579125facf1694554c2c 100644\n--- a/server/static/theme_default.css\n+++ b/server/static/theme_default.css\n@@ -250,6 +250,11 @@ p.auth-error {\n   font-size: 12px;\n   margin: 4px 0 0;\n }\n+p.auth-success {\n+  color: var(--signal);\n+  font-size: 13px;\n+  margin: 4px 0 0;\n+}\n \n /* ----------------------------------------------------------------\n    BUTTONS — raised, press on :active\ndiff --git a/server/static/theme_retro.css b/server/static/theme_retro.css\nindex dc9fa4654f529eb1843557fb580cf3982da46901..8ed8fd88efab32b36bd66cf200aa182219b0a8b5 100644\n--- a/server/static/theme_retro.css\n+++ b/server/static/theme_retro.css\n@@ -32,6 +32,7 @@ input[type=\"text\"] {\n input[type=\"text\"]:focus { border-color: #00ff41; }\n p.auth-hint { color: #555; font-family: monospace; font-size: 0.75rem; margin: 0; }\n p.auth-error { color: #ff4444; font-family: monospace; font-size: 0.8rem; margin: 0; }\n+p.auth-success { color: #00ff41; font-family: monospace; font-size: 0.8rem; margin: 0; }\n \n /* Ingest form (poem pattern) */\n .ingest-form-wrap { margin-top: 1.5rem; }\n","role":"user"}],"model":"~x-ai/grok-latest"}