{"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[3f35edab] progress\n\nSide A — unified diff (full patch):\ndiff --git a/server/src/api/mod.rs b/server/src/api/mod.rs\nindex a10ce662105cff8fad949c6b83f7035ce79bed18..a986f706ea4b261cbaf004c02b4cf84184b41371 100644\n--- a/server/src/api/mod.rs\n+++ b/server/src/api/mod.rs\n@@ -3,6 +3,7 @@ mod helpers;\n mod rpc;\n mod stream;\n mod validate;\n+mod ui_html;\n mod web_post;\n \n pub use auth::{\n@@ -33,6 +34,7 @@ pub use stream::{get_html_stream, get_stream};\n \n pub use validate::{normalize_room_and_thread, validate_ingest_document, ValidatedIngest};\n \n+pub use ui_html::post_ui_html;\n pub use web_post::{check_web_ingest, post_web_ingest, post_web_redact};\n \n #[cfg(test)]\ndiff --git a/server/src/api/ui_html.rs b/server/src/api/ui_html.rs\nnew file mode 100644\nindex 0000000000000000000000000000000000000000..2b40a72059981d558768f73d189b991f3448c257\n--- /dev/null\n+++ b/server/src/api/ui_html.rs\n@@ -0,0 +1,139 @@\n+//! Single `POST /ui` entry for browser [`crate::html::ui_action::HtmlUiAction`] (JSON in `__rpc__` + holes).\n+\n+use axum::{\n+    body::Body,\n+    extract::State,\n+    http::{header, HeaderMap, StatusCode},\n+    response::{IntoResponse, Response},\n+    Form,\n+};\n+use axum_extra::extract::cookie::CookieJar;\n+use std::collections::HashMap;\n+\n+use crate::{\n+    api::{\n+        auth::optional_principal,\n+        web_post::{run_check_web_ingest, run_post_web_ingest, run_post_web_redact, WebPostForm, WebRedactForm},\n+    },\n+    html::{\n+        fragment_public_new_thread_form, fragment_room_new_thread_form, login_to_post_hint_markup,\n+        parse_html_ui_from_form, user_can_post_room, user_can_view_room, HtmlUiAction, JsBuilder,\n+        ThreadNav,\n+    },\n+    state::AppState,\n+};\n+\n+pub async fn post_ui_html(\n+    State(state): State<AppState>,\n+    headers: HeaderMap,\n+    jar: CookieJar,\n+    Form(form): Form<HashMap<String, String>>,\n+) -> impl IntoResponse {\n+    let action = match parse_html_ui_from_form(&form) {\n+        Ok(a) => a,\n+        Err(e) => return ui_js_warn(&e.to_string()).into_response(),\n+    };\n+\n+    match action {\n+        HtmlUiAction::PostIngest {\n+            room,\n+            thread_tag,\n+            text,\n+            error_target,\n+            form_id,\n+        } => {\n+            run_post_web_ingest(\n+                &state,\n+                &headers,\n+                &jar,\n+                WebPostForm {\n+                    room,\n+                    thread_tag,\n+                    text,\n+                    error_target,\n+                    form_id,\n+                },\n+            )\n+            .await\n+        }\n+        HtmlUiAction::CheckIngest {\n+            room,\n+            thread_tag,\n+            text,\n+            error_target,\n+            form_id,\n+        } => {\n+            run_check_web_ingest(\n+                &state,\n+                &headers,\n+                &jar,\n+                WebPostForm {\n+                    room,\n+                    thread_tag,\n+                    text,\n+                    error_target,\n+                    form_id,\n+                },\n+            )\n+            .await\n+        }\n+        HtmlUiAction::RedactPost { post_id } => {\n+            run_post_web_redact(&state, &headers, &jar, WebRedactForm { post_id }).await\n+        }\n+        HtmlUiAction::ExpandPublicNewThreadForm => {\n+            let reduced = state.reduced.read().await;\n+            let user = optional_principal(&headers, &jar, &reduced);\n+            drop(reduced);\n+            let markup = if user.is_some() {\n+                fragment_public_new_thread_form(true)\n+            } else {\n+                login_to_post_hint_markup()\n+            };\n+            JsBuilder::new()\n+                .morph_selector(\"#public-new-thread-ui-slot\", markup)\n+                .into_response()\n+        }\n+        HtmlUiAction::ExpandRoomNewThreadForm { room_wire } => {\n+            let room_wire = room_wire.trim().to_string();\n+            if room_wire.is_empty() {\n+                return ui_js_warn(\"missing room\").into_response();\n+            }\n+            let reduced = state.reduced.read().await;\n+            let user = optional_principal(&headers, &jar, &reduced);\n+            if !reduced.rooms.contains(&room_wire) {\n+                drop(reduced);\n+                return ui_js_warn(\"room not found\").into_response();\n+            }\n+            if !user_can_view_room(&reduced, &room_wire, user.as_deref()) {\n+                drop(reduced);\n+                return ui_js_warn(\"forbidden\").into_response();\n+            }\n+            let can_post = user\n+                .as_ref()\n+                .map(|u| user_can_post_room(&reduced, &room_wire, u))\n+                .unwrap_or(false);\n+            drop(reduced);\n+            let Some(nav) = ThreadNav::from_room_id(&room_wire) else {\n+                return ui_js_warn(\"bad room\").into_response();\n+            };\n+            let markup = if can_post {\n+                fragment_room_new_thread_form(&nav, true)\n+            } else {\n+                login_to_post_hint_markup()\n+            };\n+            JsBuilder::new()\n+                .morph_selector(\"#room-new-thread-ui-slot\", markup)\n+                .into_response()\n+        }\n+    }\n+}\n+\n+fn ui_js_warn(msg: &str) -> Response {\n+    use crate::html::js_string_literal;\n+    let js = format!(\"console.warn({});\", js_string_literal(msg));\n+    Response::builder()\n+        .status(StatusCode::OK)\n+        .header(header::CONTENT_TYPE, \"text/javascript; charset=utf-8\")\n+        .body(Body::from(js))\n+        .unwrap()\n+}\ndiff --git a/server/src/api/web_post.rs b/server/src/api/web_post.rs\nindex a64010e382d3039821c836a5529adad0fe67cce5..265025f41ff1548d05b2d2d5d84202245388053f 100644\n--- a/server/src/api/web_post.rs\n+++ b/server/src/api/web_post.rs\n@@ -222,8 +222,18 @@ pub async fn post_web_redact(\n     jar: CookieJar,\n     Form(form): Form<WebRedactForm>,\n ) -> impl IntoResponse {\n+    run_post_web_redact(&state, &headers, &jar, form).await\n+}\n+\n+/// Shared with [`crate::api::ui_html::post_ui_html`].\n+pub(crate) async fn run_post_web_redact(\n+    state: &AppState,\n+    headers: &HeaderMap,\n+    jar: &CookieJar,\n+    form: WebRedactForm,\n+) -> Response {\n     let reduced = state.reduced.read().await;\n-    let Some(_username) = optional_principal(&headers, &jar, &reduced) else {\n+    let Some(_username) = optional_principal(headers, jar, &reduced) else {\n         drop(reduced);\n         return js_redirect(\"/login\").into_response();\n     };\n@@ -239,8 +249,8 @@ pub async fn post_web_redact(\n         return js_redirect(\"/login\").into_response();\n     };\n \n-    match rpc_post_redact(&state, &headers, form.post_id).await {\n-        Ok(RpcResult::RedactPostOk {}) => redact_success_response(&state).await.into_response(),\n+    match rpc_post_redact(state, headers, form.post_id).await {\n+        Ok(RpcResult::RedactPostOk {}) => redact_success_response(state).await.into_response(),\n         Ok(_) => (StatusCode::BAD_REQUEST, \"unexpected response\").into_response(),\n         Err((msg, hint)) => {\n             let detail = hint.as_deref().unwrap_or(\"\");\n@@ -255,8 +265,18 @@ pub async fn post_web_ingest(\n     jar: CookieJar,\n     Form(form): Form<WebPostForm>,\n ) -> impl IntoResponse {\n+    run_post_web_ingest(&state, &headers, &jar, form).await\n+}\n+\n+/// Shared with [`crate::api::ui_html::post_ui_html`] (`POST /ui`).\n+pub(crate) async fn run_post_web_ingest(\n+    state: &AppState,\n+    headers: &HeaderMap,\n+    jar: &CookieJar,\n+    form: WebPostForm,\n+) -> Response {\n     let reduced = state.reduced.read().await;\n-    let Some(_username) = optional_principal(&headers, &jar, &reduced) else {\n+    let Some(_username) = optional_principal(headers, jar, &reduced) else {\n         drop(reduced);\n         return js_redirect(\"/login\").into_response();\n     };\n@@ -282,8 +302,8 @@ pub async fn post_web_ingest(\n             .into_response();\n     }\n \n-    match rpc_post_with_bearer(&state, &bearer, room.clone(), thread_tag.clone(), text).await {\n-        Ok(RpcResult::PostOk { .. }) => post_success_response(&state, &form, &headers, &jar)\n+    match rpc_post_with_bearer(state, &bearer, room.clone(), thread_tag.clone(), text).await {\n+        Ok(RpcResult::PostOk { .. }) => post_success_response(state, &form, headers, jar)\n             .await\n             .into_response(),\n         Ok(_) => form_js_error(&form, \"unexpected response\", \"Post did not return PostOk.\").into_response(),\n@@ -297,8 +317,18 @@ pub async fn check_web_ingest(\n     jar: CookieJar,\n     Form(form): Form<WebPostForm>,\n ) -> impl IntoResponse {\n+    run_check_web_ingest(&state, &headers, &jar, form).await\n+}\n+\n+/// Shared with [`crate::api::ui_html::post_ui_html`] (`POST /ui`).\n+pub(crate) async fn run_check_web_ingest(\n+    state: &AppState,\n+    headers: &HeaderMap,\n+    jar: &CookieJar,\n+    form: WebPostForm,\n+) -> Response {\n     let reduced = state.reduced.read().await;\n-    let Some(_username) = optional_principal(&headers, &jar, &reduced) else {\n+    let Some(_username) = optional_principal(headers, jar, &reduced) else {\n         drop(reduced);\n         return js_redirect(\"/login\").into_response();\n     };\n@@ -324,7 +354,7 @@ pub async fn check_web_ingest(\n         return js_clear_errors(&form_error_target(&form)).into_response();\n     }\n \n-    match rpc_check_with_bearer(&state, &bearer, room, form.text.clone()).await {\n+    match rpc_check_with_bearer(state, &bearer, room, form.text.clone()).await {\n         Ok(RpcResult::CheckOk { .. }) => js_clear_errors(&form_error_target(&form)).into_response(),\n         Ok(_) => form_js_error(&form, \"unexpected response\", \"Check did not return CheckOk.\").into_response(),\n         Err((msg, hint)) => form_js_error(&form, &msg, hint.as_deref().unwrap_or(\"\")).into_response(),\ndiff --git a/server/src/form_template.rs b/server/src/form_template.rs\nnew file mode 100644\nindex 0000000000000000000000000000000000000000..3709c2c09a859da006e4af173413d5d235bc19be\n--- /dev/null\n+++ b/server/src/form_template.rs\n@@ -0,0 +1,142 @@\n+//! Plan2-style JSON templates with `{\"$form\": \"field_name\"}` holes, filled from\n+//! `application/x-www-form-urlencoded` (or any `String` → `String` map) **before**\n+//! deserializing into a typed struct.\n+//!\n+//! # Wire format\n+//!\n+//! Templates are **compact JSON** (`serde_json::to_string`): one line, no pretty\n+//! printing, strings escaped per JSON rules (`\\\"`, `\\n`, etc.). Embed that string\n+//! in HTML attributes or text nodes with normal HTML escaping (e.g. maud), not\n+//! bespoke encodings.\n+//!\n+//! # Power vs flat hidden fields\n+//!\n+//! A form is always a string→string map. You can fake depth with dotted keys (`a.b.c`),\n+//! but one structured blob (`__rpc__` = compact JSON) gives you nested objects,\n+//! arrays, and optional fields without inventing a new naming scheme each time.\n+//!\n+//! # Security\n+//!\n+//! Substitution runs **before** `serde` into your command type. It does not fix\n+//! authorization: if the client can replace the hidden `__rpc__` value, they can\n+//! change the command shape unless you validate (signed blob, server-side session\n+//! context, or treat the blob as hints only). Same threat model as any hidden field.\n+\n+use serde::Serialize;\n+use serde_json::Value;\n+use std::collections::HashMap;\n+\n+/// Serialize a value to compact JSON for a hidden `__rpc__` (or similar) field.\n+pub fn template_json_compact<T: Serialize>(v: &T) -> serde_json::Result<String> {\n+    serde_json::to_string(v)\n+}\n+\n+/// Recursively walk the JSON AST and replace `{\"$form\": \"key\"}` with the submitted\n+/// string for `key` (empty if missing). Other keys are unchanged.\n+pub fn substitute_form_vars(val: &mut Value, form_data: &HashMap<String, String>) {\n+    match val {\n+        Value::Object(map) => {\n+            if map.len() == 1 {\n+                if let Some(Value::String(field_name)) = map.get(\"$form\") {\n+                    let submitted = form_data\n+                        .get(field_name.as_str())\n+                        .map(|s| s.as_str())\n+                        .unwrap_or(\"\");\n+                    *val = Value::String(submitted.to_string());\n+                    return;\n+                }\n+            }\n+            for v in map.values_mut() {\n+                substitute_form_vars(v, form_data);\n+            }\n+        }\n+        Value::Array(arr) => {\n+            for v in arr.iter_mut() {\n+                substitute_form_vars(v, form_data);\n+            }\n+        }\n+        _ => {}\n+    }\n+}\n+\n+/// Parse JSON, apply [`substitute_form_vars`], return the mutated value.\n+pub fn fill_template_from_form(\n+    template_json: &str,\n+    form_data: &HashMap<String, String>,\n+) -> Result<Value, serde_json::Error> {\n+    let mut v: Value = serde_json::from_str(template_json)?;\n+    substitute_form_vars(&mut v, form_data);\n+    Ok(v)\n+}\n+\n+#[cfg(test)]\n+mod tests {\n+    use super::*;\n+    use serde::Deserialize;\n+\n+    #[derive(Debug, Deserialize, PartialEq, Eq)]\n+    struct Demo {\n+        room: String,\n+        thread_tag: String,\n+        nested: Nested,\n+    }\n+\n+    #[derive(Debug, Deserialize, PartialEq, Eq)]\n+    struct Nested {\n+        text: String,\n+    }\n+\n+    #[test]\n+    fn holes_become_strings() {\n+        let json = r#\"{\n+            \"room\": \"public\",\n+            \"thread_tag\": {\"$form\": \"tag\"},\n+            \"nested\": {\"text\": {\"$form\": \"body\"}}\n+        }\"#;\n+        let mut form = HashMap::new();\n+        form.insert(\"tag\".into(), \"foo\".into());\n+        form.insert(\"body\".into(), \"hello\\nworld\".into());\n+\n+        let v = fill_template_from_form(json, &form).unwrap();\n+        let d: Demo = serde_json::from_value(v).unwrap();\n+        assert_eq!(\n+            d,\n+            Demo {\n+                room: \"public\".into(),\n+                thread_tag: \"foo\".into(),\n+                nested: Nested {\n+                    text: \"hello\\nworld\".into(),\n+                },\n+            }\n+        );\n+    }\n+\n+    #[test]\n+    fn missing_form_key_is_empty_string() {\n+        let json = r#\"{\"x\": {\"$form\": \"nope\"}}\"#;\n+        let mut form = HashMap::new();\n+        form.insert(\"other\".into(), \"y\".into());\n+        let v = fill_template_from_form(json, &form).unwrap();\n+        assert_eq!(v[\"x\"], \"\");\n+    }\n+\n+    #[test]\n+    fn array_of_holes() {\n+        let json = r#\"{\"items\": [{\"$form\": \"a\"}, {\"$form\": \"b\"}]}\"#;\n+        let mut form = HashMap::new();\n+        form.insert(\"a\".into(), \"1\".into());\n+        form.insert(\"b\".into(), \"2\".into());\n+        let v = fill_template_from_form(json, &form).unwrap();\n+        assert_eq!(v[\"items\"], serde_json::json!([\"1\", \"2\"]));\n+    }\n+\n+    #[test]\n+    fn template_json_compact_escapes_and_single_line() {\n+        let s = template_json_compact(&serde_json::json!({\n+            \"x\": \"quote\\\"and\\nnewline\"\n+        }))\n+        .unwrap();\n+        assert!(!s.contains('\\n'));\n+        assert!(s.contains(\"\\\\\\\"\") || s.contains(\"\\\\n\"));\n+    }\n+}\ndiff --git a/server/src/html/forum.rs b/server/src/html/forum.rs\nindex f789e347dc136f8ffd356f4492f0bd76cea04bf0..b1c037f3dd93c7bb96d6624cab6019228432c501 100644\n--- a/server/src/html/forum.rs\n+++ b/server/src/html/forum.rs\n@@ -11,12 +11,15 @@ use crate::{\n     api::optional_principal,\n     canonical_path::{canonicalize_item, canonicalize_tag},\n     events::ThreadCapability,\n+    form_template::template_json_compact,\n     identity::parse_username,\n     reducer::{scope_from_room_wire, ReducerState, ScopeId},\n     state::AppState,\n     timeago,\n };\n \n+use super::ui_action::{HtmlUiAction, UI_RPC_FIELD};\n+\n use super::{\n     bc_segment, bc_threads, cli_panel, layout, now_ms, profile_href, recency_class,\n     render_linkified_with_embeds_in_scope, theme_from_jar, theme_next_from_uri, JsBuilder,\n@@ -289,7 +292,7 @@ fn rooms_for_user(reduced: &ReducerState, username: &str) -> Vec<String> {\n     v\n }\n \n-fn user_can_view_room(reduced: &ReducerState, room_id: &str, username: Option<&str>) -> bool {\n+pub(crate) fn user_can_view_room(reduced: &ReducerState, room_id: &str, username: Option<&str>) -> bool {\n     if !reduced.rooms.contains(room_id) {\n         return false;\n     }\n@@ -299,7 +302,7 @@ fn user_can_view_room(reduced: &ReducerState, room_id: &str, username: Option<&s\n     reduced.user_has_cap(room_id, u, ThreadCapability::View)\n }\n \n-fn user_can_post_room(reduced: &ReducerState, room_id: &str, username: &str) -> bool {\n+pub(crate) fn user_can_post_room(reduced: &ReducerState, room_id: &str, username: &str) -> bool {\n     reduced.user_has_cap(room_id, username, ThreadCapability::Post)\n }\n \n@@ -591,7 +594,6 @@ pub async fn home(\n     let nav = ThreadNav::public();\n     let reduced_read = state.reduced.read().await;\n     let strip = auth_strip(&headers, &jar, &reduced_read);\n-    let show_forms = user.is_some();\n     drop(reduced_read);\n \n     let page = layout(\n@@ -617,8 +619,14 @@ pub async fn home(\n                 }\n             }\n             p class=\"muted\" { \"dark = time-ordered · light = vote-ranked\" }\n+            div class=\"thread-feed-toolbar\" {\n+                form method=\"POST\" action=\"/ui\" {\n+                    input type=\"hidden\" name=(UI_RPC_FIELD) value=(expand_public_new_thread_rpc_value());\n+                    button type=\"submit\" class=\"section-add-btn\" { \"+\" }\n+                }\n+            }\n+            div id=\"public-new-thread-ui-slot\" {}\n             (render_thread_feed(Some(&nav), \"thread-feed\", &public_rows, now))\n-            (new_thread_form_public(show_forms))\n             (cli_panel(\"npx slugsocial public forum list\"))\n         },\n         None,\n@@ -901,7 +909,13 @@ pub async fn room_page(\n             h3 { \"threads\" }\n             (render_thread_feed(Some(&nav), \"room-thread-feed\", &rows, now))\n             @if show_new {\n-                (new_thread_form_for_room(&nav, show_new))\n+                div class=\"thread-feed-toolbar\" {\n+                    form method=\"POST\" action=\"/ui\" {\n+                        input type=\"hidden\" name=(UI_RPC_FIELD) value=(expand_room_new_thread_rpc_value(&nav));\n+                        button type=\"submit\" class=\"section-add-btn\" { \"+\" }\n+                    }\n+                }\n+                div id=\"room-new-thread-ui-slot\" {}\n             }\n             (cli_panel(&forum_cli))\n             (cli_panel(&garden_cli))\n@@ -945,6 +959,31 @@ fn new_thread_form_for_room(nav: &ThreadNav, show: bool) -> Markup {\n     }\n }\n \n+pub(crate) fn expand_public_new_thread_rpc_value() -> String {\n+    template_json_compact(&HtmlUiAction::ExpandPublicNewThreadForm).expect(\"static json\")\n+}\n+\n+pub(crate) fn expand_room_new_thread_rpc_value(nav: &ThreadNav) -> String {\n+    template_json_compact(&HtmlUiAction::ExpandRoomNewThreadForm {\n+        room_wire: nav.room_wire.clone(),\n+    })\n+    .expect(\"static json\")\n+}\n+\n+pub(crate) fn login_to_post_hint_markup() -> Markup {\n+    html! {\n+        p class=\"muted\" { \"log in to post\" }\n+    }\n+}\n+\n+pub(crate) fn fragment_public_new_thread_form(show: bool) -> Markup {\n+    new_thread_form_public(show)\n+}\n+\n+pub(crate) fn fragment_room_new_thread_form(nav: &ThreadNav, show: bool) -> Markup {\n+    new_thread_form_for_room(nav, show)\n+}\n+\n async fn thread_post_view_inner(\n     state: AppState,\n     tag: String,\ndiff --git a/server/src/html/mod.rs b/server/src/html/mod.rs\nindex 53041a0cf0b30e6f20749c92ecc15a4e9ac56e09..a4fd2dd60ac283f7eb9b2e64522501b21d1e27e9 100644\n--- a/server/src/html/mod.rs\n+++ b/server/src/html/mod.rs\n@@ -16,6 +16,7 @@ mod editor;\n mod forum;\n mod garden;\n mod search;\n+pub mod ui_action;\n use breadcrumb_path::OntologyPath;\n \n pub use auth::{auth_complete_page, auth_signed_in_fragment, choose_username_error_fragment, choose_username_page};\n@@ -27,9 +28,15 @@ pub use forum::{\n     thread_post_collapse_deleted, thread_post_expand, thread_post_expand_deleted, thread_post_view,\n     thread_view, ThreadNav,\n };\n+\n+pub(crate) use forum::{\n+    fragment_public_new_thread_form, fragment_room_new_thread_form, login_to_post_hint_markup,\n+    user_can_post_room, user_can_view_room,\n+};\n pub use garden::{garden_index, ontology_path, room_garden_index, room_ontology_path};\n pub use search::{search_page, search_results_fragment};\n pub use forum::user_profile_page;\n+pub use ui_action::{parse_html_ui_from_form, HtmlUiAction, HtmlUiParseError, UI_RPC_FIELD};\n \n /// Public profile URL path for a stored username (no `@`).\n pub(crate) fn profile_href(username: &str) -> String {\ndiff --git a/server/src/html/ui_action.rs b/server/src/html/ui_action.rs\nnew file mode 100644\nindex 0000000000000000000000000000000000000000..3bc69ecbb7e16a59d2d393b2d59f9cd3fedb12b1\n--- /dev/null\n+++ b/server/src/html/ui_action.rs\n@@ -0,0 +1,116 @@\n+//! Browser-only UI commands: JSON in hidden `__rpc__` plus hole fill ([`crate::form_template`]).\n+//! Not part of [`slug_types::RpcCommand`] (CLI / JSON API).\n+\n+use crate::form_template::fill_template_from_form;\n+use serde::{Deserialize, Serialize};\n+use serde_json::Value;\n+use std::collections::HashMap;\n+use thiserror::Error;\n+\n+/// Form field name for the compact JSON template (possibly with `{\"$form\":\"…\"}` holes).\n+pub const UI_RPC_FIELD: &str = \"__rpc__\";\n+\n+/// HTML form / fetch `POST /ui` payload after template fill and deserialization.\n+#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq)]\n+#[serde(tag = \"action\", rename_all = \"snake_case\")]\n+pub enum HtmlUiAction {\n+    /// Same semantics as `POST /post` (forum ingest).\n+    PostIngest {\n+        room: String,\n+        thread_tag: String,\n+        text: String,\n+        #[serde(default)]\n+        error_target: Option<String>,\n+        #[serde(default)]\n+        form_id: Option<String>,\n+    },\n+    /// Same as `POST /post/check`.\n+    CheckIngest {\n+        room: String,\n+        thread_tag: String,\n+        text: String,\n+        #[serde(default)]\n+        error_target: Option<String>,\n+        #[serde(default)]\n+        form_id: Option<String>,\n+    },\n+    /// Same as `POST /post/redact`.\n+    RedactPost {\n+        post_id: String,\n+    },\n+    /// Morph `#public-new-thread-ui-slot` to the new-thread form (or login hint).\n+    ExpandPublicNewThreadForm,\n+    /// Morph `#room-new-thread-ui-slot` for the given room wire id.\n+    ExpandRoomNewThreadForm {\n+        room_wire: String,\n+    },\n+}\n+\n+#[derive(Debug, Error)]\n+pub enum HtmlUiParseError {\n+    #[error(\"missing __rpc__ field\")]\n+    MissingRpc,\n+    #[error(\"invalid template json: {0}\")]\n+    Template(serde_json::Error),\n+    #[error(\"invalid ui action: {0}\")]\n+    Action(serde_json::Error),\n+}\n+\n+/// Parse `__rpc__` JSON, apply `$form` holes from the rest of the form map, deserialize.\n+pub fn parse_html_ui_from_form(form: &HashMap<String, String>) -> Result<HtmlUiAction, HtmlUiParseError> {\n+    let template = form\n+        .get(UI_RPC_FIELD)\n+        .ok_or(HtmlUiParseError::MissingRpc)?;\n+    let mut hole_map = form.clone();\n+    hole_map.remove(UI_RPC_FIELD);\n+    let v: Value = fill_template_from_form(template, &hole_map).map_err(HtmlUiParseError::Template)?;\n+    serde_json::from_value(v).map_err(HtmlUiParseError::Action)\n+}\n+\n+#[cfg(test)]\n+mod tests {\n+    use super::*;\n+\n+    #[test]\n+    fn round_trip_post_ingest_with_holes() {\n+        let template = serde_json::json!({\n+            \"action\": \"post_ingest\",\n+            \"room\": \"public\",\n+            \"thread_tag\": {\"$form\": \"thread_tag\"},\n+            \"text\": {\"$form\": \"text\"},\n+            \"error_target\": \"e\",\n+            \"form_id\": \"f\",\n+        });\n+        let mut form = HashMap::new();\n+        form.insert(\n+            UI_RPC_FIELD.to_string(),\n+            serde_json::to_string(&template).unwrap(),\n+        );\n+        form.insert(\"thread_tag\".into(), \"x\".into());\n+        form.insert(\"text\".into(), \"body\".into());\n+\n+        let a = parse_html_ui_from_form(&form).unwrap();\n+        assert_eq!(\n+            a,\n+            HtmlUiAction::PostIngest {\n+                room: \"public\".into(),\n+                thread_tag: \"x\".into(),\n+                text: \"body\".into(),\n+                error_target: Some(\"e\".into()),\n+                form_id: Some(\"f\".into()),\n+            }\n+        );\n+    }\n+\n+    #[test]\n+    fn expand_public_unit_variant() {\n+        let template = serde_json::json!({ \"action\": \"expand_public_new_thread_form\" });\n+        let mut form = HashMap::new();\n+        form.insert(\n+            UI_RPC_FIELD.to_string(),\n+            serde_json::to_string(&template).unwrap(),\n+        );\n+        let a = parse_html_ui_from_form(&form).unwrap();\n+        assert_eq!(a, HtmlUiAction::ExpandPublicNewThreadForm);\n+    }\n+}\ndiff --git a/server/src/lib.rs b/server/src/lib.rs\nindex b9d4b79791ba8dd3a3c26ff777943a2548092de5..5f5b6b0f01b29350c7415e5801ec5caa74f0b452 100644\n--- a/server/src/lib.rs\n+++ b/server/src/lib.rs\n@@ -3,6 +3,7 @@ pub mod paths;\n pub mod api;\n pub mod canonical_path;\n pub mod dsl;\n+pub mod form_template;\n pub mod html;\n pub mod event_log;\n pub mod events;\n@@ -33,6 +34,7 @@ pub fn create_app(state: AppState) -> Router {\n         .route(\"/post\", post(api::post_web_ingest))\n         .route(\"/post/redact\", post(api::post_web_redact))\n         .route(\"/post/check\", post(api::check_web_ingest))\n+        .route(\"/ui\", post(api::post_ui_html))\n         .route(\"/theme\", post(crate::html::post_theme))\n         .route(\"/sse\", get(api::get_html_stream))\n         .route(\"/stream\", get(api::get_stream))\n\n\nSide B — contributor: tommy-mor\nSide B — commit message:\n[993d359c] Fix Reddit children import wiring and unranked child labels.\n\nListing imports attach posts directly under the subreddit without ensure_path\npulling comment-path segments in, and the ranking panel shows imported titles.\nUpdate integration tests for JS SSE morphs and children fetch.\n\nCo-authored-by: Cursor <cursoragent@cursor.com>\n\nSide B — unified diff (full patch):\ndiff --git a/server/src/api/ui_html.rs b/server/src/api/ui_html.rs\nindex d1defd28242fd2ca3b886adc91a7070bef75e653..e649a7d192feade465e19ce6187a829f6ec74372 100644\n--- a/server/src/api/ui_html.rs\n+++ b/server/src/api/ui_html.rs\n@@ -58,7 +58,7 @@ pub async fn post_ui_html(\n             let tree = state.tree.read().await;\n             let empty = crate::reducer::NodeState::default();\n             let node = tree.get(&parent).unwrap_or(&empty);\n-            let panel = ranking_panel(&parent, node);\n+            let panel = ranking_panel(&parent, node, &tree);\n             JsBuilder::new()\n                 .morph_selector(\"#ranking-panel\", panel)\n                 .into_response()\ndiff --git a/server/src/fetch/mod.rs b/server/src/fetch/mod.rs\nindex 0177bb161cea1b72a100b52efdfc5e710271c9eb..35f968c21c69ca557bab7951413e3cfbbccfebfd 100644\n--- a/server/src/fetch/mod.rs\n+++ b/server/src/fetch/mod.rs\n@@ -107,7 +107,7 @@ pub fn fetch_entity_stream(\n                 let mut b = JsBuilder::new()\n                     .morph_selector(\"#entity-section\", html::entity_section(&id, node, false));\n                 if kind == FetchKind::Children {\n-                    b = b.morph_selector(\"#ranking-panel\", ranking_panel(&id, node));\n+                    b = b.morph_selector(\"#ranking-panel\", ranking_panel(&id, node, &tree));\n                 }\n                 yield Ok(js_event(b.build()));\n             }\ndiff --git a/server/src/html/mod.rs b/server/src/html/mod.rs\nindex 27ce9118c73ec5643e04363ab1a36cf5da6101bf..e88cc43ddc9d8100f7994be6f5960ec4d8f22c55 100644\n--- a/server/src/html/mod.rs\n+++ b/server/src/html/mod.rs\n@@ -15,7 +15,7 @@ use crate::{\n     ranking::{\n         connected_components_from_voted_pairs, ranked_items_subset, RankedItem, MAX_ITERS, TOL,\n     },\n-    reducer::NodeState,\n+    reducer::{GlobalTree, NodeState},\n     state::AppState,\n     ui_action::UI_RPC_FIELD,\n };\n@@ -182,8 +182,15 @@ fn display_label(id: &ItemId) -> String {\n         .to_string()\n }\n \n+fn child_label(tree: &GlobalTree, id: &ItemId) -> String {\n+    tree.get(id)\n+        .and_then(|n| n.data.as_ref())\n+        .map(|d| d.title.clone())\n+        .unwrap_or_else(|| display_label(id))\n+}\n+\n /// Plain (unscored) list of children that have no votes yet.\n-fn unranked_list(label: &str, items: &[ItemId]) -> Markup {\n+fn unranked_list(label: &str, items: &[ItemId], tree: &GlobalTree) -> Markup {\n     html! {\n         @if !items.is_empty() {\n             h3 class=\"rank-heading muted small\" { (label) }\n@@ -191,7 +198,7 @@ fn unranked_list(label: &str, items: &[ItemId]) -> Markup {\n                 @for it in items {\n                     li {\n                         a href=(item_href(it)) {\n-                            strong { (display_label(it)) }\n+                            strong { (child_label(tree, it)) }\n                         }\n                     }\n                 }\n@@ -200,7 +207,7 @@ fn unranked_list(label: &str, items: &[ItemId]) -> Markup {\n     }\n }\n \n-pub fn ranking_panel(item: &ItemId, node: &NodeState) -> Markup {\n+pub fn ranking_panel(item: &ItemId, node: &NodeState, tree: &GlobalTree) -> Markup {\n     let group = &node.local_ranking;\n     let n = group.idx_to_item.len();\n     let (comps, _isolates) =\n@@ -248,7 +255,7 @@ pub fn ranking_panel(item: &ItemId, node: &NodeState) -> Markup {\n                     @let label = if multi { format!(\"Ranking group {}\", gi + 1) } else { \"Ranking\".to_string() };\n                     (rank_list(&label, ranked, 1))\n                 }\n-                (unranked_list(\"Unranked\", &unranked))\n+                (unranked_list(\"Unranked\", &unranked, tree))\n             }\n         }\n     }\n@@ -297,7 +304,7 @@ async fn item_page(state: AppState, uri: Uri, item: ItemId) -> Markup {\n         (input_panel(\"\", None))\n         (breadcrumb_path(&item))\n         (entity_section(&item, node, false))\n-        (ranking_panel(&item, node))\n+        (ranking_panel(&item, node, &tree))\n     };\n     layout(\"sorter2\", body, views)\n }\ndiff --git a/server/src/reddit.rs b/server/src/reddit.rs\nindex a0eb688709478ee0185b953b41a5d26cc354764d..69d979bc7e4a1cb078f70114dc539bdc1986b574 100644\n--- a/server/src/reddit.rs\n+++ b/server/src/reddit.rs\n@@ -300,9 +300,16 @@ async fn reddit_worker(\n                     }\n                     {\n                         let mut tree = tree.write().await;\n-                        apply_entity_import(&mut tree, &child_id, child_payload);\n                         if kind == FetchKind::Children {\n-                            tree.link_child(&fetch_id, &child_id);\n+                            let view = entity_view_from_payload(&child_id, &child_payload);\n+                            tree.apply_entity_under_parent(\n+                                &fetch_id,\n+                                &child_id,\n+                                child_payload,\n+                                view,\n+                            );\n+                        } else {\n+                            apply_entity_import(&mut tree, &child_id, child_payload);\n                         }\n                     }\n                     written += 1;\ndiff --git a/server/src/reducer.rs b/server/src/reducer.rs\nindex a36cd5c9287d61536f9f4a3f6b0df2342388857a..4e42d0369dab50bb2f8ca664aa69b628292f6c07 100644\n--- a/server/src/reducer.rs\n+++ b/server/src/reducer.rs\n@@ -209,14 +209,24 @@ impl GlobalTree {\n         }\n     }\n \n-    /// Directly attach `child` under `parent`, bypassing path-based nesting.\n-    /// Used for imported listings (e.g. a subreddit's posts) so they show up\n-    /// as children of the subreddit rather than a deep `…/comments/<id>` path.\n-    pub fn link_child(&mut self, parent: &ItemId, child: &ItemId) {\n+    /// Import entity data for `id` and attach it as a direct child of `parent`\n+    /// without running [`Self::ensure_path`] on `id` (avoids Reddit `/comments/`\n+    /// parent rules pulling intermediate path segments into the subreddit).\n+    pub fn apply_entity_under_parent(\n+        &mut self,\n+        parent: &ItemId,\n+        id: &ItemId,\n+        payload: Value,\n+        view: Option<EntityData>,\n+    ) {\n         self.ensure_path(parent);\n-        self.ensure_path(child);\n+        self.ensure_node(id);\n+        if let Some(node) = self.nodes.get_mut(id) {\n+            node.entity_raw = Some(payload);\n+            node.data = view;\n+        }\n         if let Some(p) = self.nodes.get_mut(parent) {\n-            p.children.insert(child.clone());\n+            p.children.insert(id.clone());\n         }\n     }\n }\ndiff --git a/test/reddit_import.clj b/test/reddit_import.clj\nindex 84cbdcf7965e50290313cbce2243a16b583d2097..45a2a19f20799d77e84d8aa64735ab5e7e45f97c 100644\n--- a/test/reddit_import.clj\n+++ b/test/reddit_import.clj\n@@ -67,6 +67,36 @@\n           (do (Thread/sleep 200) (recur))\n           false)))))\n \n+(defn- run-reddit-fetch-assertions [app-base data-dir]\n+  (let [browse-url (str app-base \"/~/https://reddit.com/r/rust\")\n+        log-path (str data-dir \"/events.jsonl\")\n+        before (:out (process/shell {:out :string :err :string}\n+                                    \"curl\" \"-sf\" browse-url))]\n+    (is (str/includes? before \"Fetch from Reddit\"))\n+    (is (not (str/includes? before \"The Rust Programming Language\")))\n+    (let [sse (curl-fetch-ui-sse app-base \"reddit.com/r/rust\" \"self\")]\n+      (is (zero? (:exit sse)) \"POST /ui fetch_entity (self) SSE succeeds\")\n+      (is (str/includes? (:out sse) \"Idiomorph.morph\"))\n+      (is (str/includes? (:out sse) \"The Rust Programming Language\"))\n+      (is (wait-event-log log-path 2000) \"event log written\"))\n+    (let [after (:out (process/shell {:out :string :err :string}\n+                                     \"curl\" \"-sf\" browse-url))\n+          log (slurp (io/file log-path))]\n+      (is (str/includes? after \"The Rust Programming Language\"))\n+      (is (str/includes? log \"\\\"type\\\":\\\"entity_imported\\\"\"))\n+      (is (str/includes? log \"\\\"subscribers\\\":350000\"))\n+      (is (str/includes? log \"\\\"display_name\\\":\\\"rust\\\"\")))\n+    (let [children-sse (curl-fetch-ui-sse app-base \"reddit.com/r/rust\" \"children\")]\n+      (is (zero? (:exit children-sse)) \"POST /ui fetch_entity (children) SSE succeeds\")\n+      (is (str/includes? (:out children-sse) \"Idiomorph.morph\"))\n+      (is (str/includes? (:out children-sse) \"Announcing Rust 1.99\")))\n+    (let [after-children (:out (process/shell {:out :string :err :string}\n+                                              \"curl\" \"-sf\" browse-url))\n+          log2 (slurp (io/file log-path))]\n+      (is (str/includes? after-children \"Announcing Rust 1.99\"))\n+      (is (str/includes? after-children \"Unranked\"))\n+      (is (str/includes? log2 \"announcing_rust_199\")))))\n+\n (deftest reddit-fetch-via-mock-api\n   (testing \"Fetch more queues import; event log stores full payload; page shows title\"\n     (let [root (repo-root)\n@@ -102,24 +132,7 @@\n                                     bin)]\n           (try\n             (is (wait-health app-base 20000) \"app healthz\")\n-            (let [browse-url (str app-base \"/~/https://reddit.com/r/rust\")\n-                  before (:out (process/shell {:out :string :err :string}\n-                                              \"curl\" \"-sf\" browse-url))]\n-              (is (str/includes? before \"Fetch from Reddit\"))\n-              (is (not (str/includes? before \"The Rust Programming Language\")))\n-              (let [log-path (str data-dir \"/events.jsonl\")\n-                    sse (curl-fetch-ui-sse app-base \"reddit.com/r/rust\")]\n-                (is (zero? (:exit sse)) \"POST /ui fetch_entity SSE succeeds\")\n-                (is (str/includes? (:out sse) \"event: complete\"))\n-                (is (str/includes? (:out sse) \"The Rust Programming Language\"))\n-                (is (wait-event-log log-path 2000) \"event log written\")\n-                (let [after (:out (process/shell {:out :string :err :string}\n-                                                 \"curl\" \"-sf\" browse-url))\n-                      log (slurp (io/file log-path))]\n-                  (is (str/includes? after \"The Rust Programming Language\"))\n-                  (is (str/includes? log \"\\\"type\\\":\\\"entity_imported\\\"\"))\n-                  (is (str/includes? log \"\\\"subscribers\\\":350000\"))\n-                  (is (str/includes? log \"\\\"display_name\\\":\\\"rust\\\"\")))))\n+            (run-reddit-fetch-assertions app-base data-dir)\n             (finally\n               (process/destroy proc))))\n         (finally\ndiff --git a/test/smoke.clj b/test/smoke.clj\nindex 11887c48282088e140d823a88ba616f6325835b3..ce9f958c84b9a89ae55e215ab519f1df6435e24b 100644\n--- a/test/smoke.clj\n+++ b/test/smoke.clj\n@@ -49,7 +49,7 @@\n           (is (wait-health base 15000) \"server responds to /healthz\")\n           (let [home (:out (process/shell {:out :string :err :string}\n                                          \"curl\" \"-sf\" (str base \"/\")))]\n-            (is (str/includes? home \"vote-panel\"))\n+            (is (str/includes? home \"entity-section\"))\n             (is (str/includes? home \"ranking-panel\"))\n             (is (str/includes? home \"parser-panel\"))\n             (is (str/includes? home \"__rpc__\")))\n","role":"user"}],"model":"openai/gpt-chat-latest"}