{"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[3bc88847] removed optional\n\nSide A — unified diff (full patch):\ndiff --git a/server/src/api/rpc.rs b/server/src/api/rpc.rs\nindex ba93ca87182d49f57dffc8220f604ffa150f9a6c..5049a26b096bd8435d6eb9e75ccb751b6f489061 100644\n--- a/server/src/api/rpc.rs\n+++ b/server/src/api/rpc.rs\n@@ -1337,8 +1337,7 @@ pub async fn handle_rpc_batch(\n                         .ingests_by_scope_thread\n                         .get(&(scope.clone(), e.thread.clone()))\n                         .and_then(|q| q.iter().rev().position(|id| id == &e.post_id))\n-                        .map(|i| i + 1)\n-                        .unwrap_or(0);\n+                        .expect(\"rank history post_id must be in ingests_by_scope_thread for (scope, thread)\");\n                     RankHistoryRow {\n                         ts: e.ts,\n                         scope_rank: e.scope_rank,\ndiff --git a/server/src/html/garden.rs b/server/src/html/garden.rs\nindex 319feb15a6b68d2b5df98b4289fedbc9bdd048d3..23245d6fdfc9019b199ab8417150faf5f3297067 100644\n--- a/server/src/html/garden.rs\n+++ b/server/src/html/garden.rs\n@@ -450,6 +450,7 @@ struct RankHistoryEntryView {\n     scope_total: usize,\n     scope_rank_delta: i32,\n     thread: String,\n+    /// 0-based index as [`crate::html::forum::ingest::thread_post_index_in_scope`] / `/t/tag/N`.\n     thread_post_index: usize,\n     caused_by: Vec<crate::reducer::VoteData>,\n }\n@@ -573,11 +574,11 @@ fn build_rank_history(\n             })\n             .unwrap_or_default();\n \n-        let thread_post_index = reduced.ingests_by_scope_thread\n+        let thread_post_index = reduced\n+            .ingests_by_scope_thread\n             .get(&(scope.clone(), e.thread.clone()))\n             .and_then(|q| q.iter().rev().position(|id| id == &e.post_id))\n-            .map(|i| i + 1)\n-            .unwrap_or(0);\n+            .expect(\"rank history post_id must be in ingests_by_scope_thread for (scope, thread)\");\n \n         RankHistoryEntryView {\n             ts: e.ts,\n@@ -704,11 +705,9 @@ async fn render_scope_view(\n                                 span class=\"muted\" { (ago) (label) }\n                                 \" · \"\n                                 a href=(thread_href(&e.thread)) { \"#\" (e.thread) }\n-                                @if e.thread_post_index > 0 {\n-                                    \" \"\n-                                    a href=(format!(\"{}/{}\", thread_href(&e.thread), e.thread_post_index)) {\n-                                        span class=\"muted\" { \"post #\" (e.thread_post_index) }\n-                                    }\n+                                \" \"\n+                                a href=(format!(\"{}/{}\", thread_href(&e.thread), e.thread_post_index)) {\n+                                    span class=\"muted\" { \"post #\" (e.thread_post_index) }\n                                 }\n                             }\n                             @if e.caused_by.is_empty() {\ndiff --git a/server/tests/integration.rs b/server/tests/integration.rs\nindex d4c5bfe9c6f1c71dc61878bd8c5e729b1b7c69ef..9766adb43ad315a64f5df17b79f66718ce149509 100644\n--- a/server/tests/integration.rs\n+++ b/server/tests/integration.rs\n@@ -1322,6 +1322,11 @@ async fn test_rank_history() {\n     assert_eq!(entry[\"scope_rank_delta\"], 0, \"delta is 0 on first appearance\");\n     let caused_by = entry[\"caused_by\"].as_array().unwrap();\n     assert_eq!(caused_by.len(), 2, \"both votes in the ingest touched rust\");\n+    assert_eq!(\n+        entry[\"thread_post_index\"],\n+        0,\n+        \"rank history links use same 0-based index as /t/hist-test/0\"\n+    );\n \n     ingest(\n         \"00000000-0000-0000-0000-000000000002:rig:test/model\",\n@@ -1349,6 +1354,16 @@ async fn test_rank_history() {\n     assert_eq!(caused_by2.len(), 1);\n     assert!(caused_by2[0][\"a\"].as_str().unwrap().ends_with(\"python\") ||\n             caused_by2[0][\"b\"].as_str().unwrap().ends_with(\"python\"));\n+    assert_eq!(\n+        hist2[0][\"thread_post_index\"],\n+        0,\n+        \"first hist-test post is chronological index 0\"\n+    );\n+    assert_eq!(\n+        hist2[1][\"thread_post_index\"],\n+        1,\n+        \"second ingest is chronological index 1\"\n+    );\n \n     let hist_rust2 = rpc_batch(\n         &client,\ndiff --git a/types/src/lib.rs b/types/src/lib.rs\nindex edbb923e4d7d41ad82dfc254c3bd697562383527..49abba8ea9f786ef68e3157d2a5d309e15e09ba0 100644\n--- a/types/src/lib.rs\n+++ b/types/src/lib.rs\n@@ -253,7 +253,7 @@ pub struct FeedPost {\n     /// Primary thread tag (without #), if the ingest declared one.\n     #[serde(skip_serializing_if = \"Option::is_none\")]\n     pub thread: Option<String>,\n-    /// 1-indexed chronological position of this post within the thread.\n+    /// 1-based display ordinal for this post within the thread (feed only; URLs use 0-based paths).\n     #[serde(skip_serializing_if = \"Option::is_none\")]\n     pub thread_post_index: Option<usize>,\n     /// Full raw body of the ingest document.\n@@ -628,7 +628,7 @@ pub struct RankHistoryRow {\n     pub score: f64,\n     /// Thread tag of the ingest that triggered this rank change.\n     pub thread: String,\n-    /// 1-indexed chronological position of this post within the thread.\n+    /// 0-indexed chronological position of this post within the thread (same as `/t/tag/N` routes).\n     pub thread_post_index: usize,\n     /// Votes from this ingest that directly touched this item. Empty when change was transitive.\n     pub caused_by: Vec<VoteRow>,\n\n\nSide B — contributor: tommy-mor\nSide B — commit message:\n[65bce99f] sibling groups #130\n\nSide B — unified diff (full patch):\ndiff --git a/server/src/html/garden.rs b/server/src/html/garden.rs\nindex 82c1b4b4f36ea13a906035a1789ba893222b3695..e3c56d124ab7b0fa08c7f9ae736103e6b7cf5862 100644\n--- a/server/src/html/garden.rs\n+++ b/server/src/html/garden.rs\n@@ -837,7 +837,8 @@ struct SiblingNavGroup {\n     links: Vec<SiblingNavLink>,\n }\n \n-/// Siblings under the same parent, grouped like child rankings (components then isolates).\n+/// Siblings under the same parent: one group per ranking component (ordered list), then one\n+/// group per isolated unranked sibling (each shows rank `1`, separated like components).\n #[derive(Debug, Clone)]\n struct SiblingNavBar {\n     groups: Vec<SiblingNavGroup>,\n@@ -890,15 +891,12 @@ fn build_sibling_nav(\n             groups.push(SiblingNavGroup { links });\n         }\n     }\n-    if !rankings.unranked_items.is_empty() {\n-        let links: Vec<SiblingNavLink> = rankings\n-            .unranked_items\n-            .iter()\n-            .map(|u| SiblingNavLink {\n+    for u in &rankings.unranked_items {\n+        groups.push(SiblingNavGroup {\n+            links: vec![SiblingNavLink {\n                 path: u.clone().normalized_storage().to_storage_string(),\n-            })\n-            .collect();\n-        groups.push(SiblingNavGroup { links });\n+            }],\n+        });\n     }\n     let sibling_total: usize = groups.iter().map(|g| g.links.len()).sum();\n     if sibling_total <= 1 {\n@@ -1541,6 +1539,29 @@ mod tests {\n         assert_eq!(nav.groups[1].links.len(), 1);\n     }\n \n+    #[test]\n+    fn sibling_nav_splits_each_unranked_into_its_own_group() {\n+        let mut reduced = ReducerState::default();\n+        apply_ingest(\n+            &mut reduced,\n+            1,\n+            \"@00000000-0000-0000-0000-000000000000:test:local/test\\n\\\n+             ~/topic {topic body}\\n\\\n+             ~/topic/a {alpha}\\n\\\n+             ~/topic/b {beta}\\n\\\n+             ~/topic/c {gamma}\\n\\\n+             ~/topic/d {delta}\\n\\\n+             {a beats b}\\n             ~/topic/a 2:1 ~/topic/b\\n\",\n+        );\n+\n+        let model = build_item_page_view_model(&reduced, &ScopeId::Public, \"~/topic/a\");\n+        let nav = model.sibling_nav.expect(\"expected sibling nav\");\n+        assert_eq!(nav.groups.len(), 3);\n+        assert_eq!(nav.groups[0].links.len(), 2);\n+        assert_eq!(nav.groups[1].links.len(), 1);\n+        assert_eq!(nav.groups[2].links.len(), 1);\n+    }\n+\n     #[test]\n     fn item_page_model_builds_ranked_child_components() {\n         let mut reduced = ReducerState::default();\n","role":"user"}],"model":"~anthropic/claude-sonnet-latest"}