constitution · epochs · watch · epoch 3

comparison

c_3ff71f7eaeda (tommy-mor) vs c_06fce70179bc (tommy-mor)

download prompt · raw event · cmp_3e640749c9ae84

council reasoning

~anthropic/claude-sonnet-latest · winner B · 65:35 · permalink

Side B implements a substantive architectural improvement: converting entity fetch from fire-and-forget to a proper SSE stream with typed FetchJobResult outcomes, oneshot completion signaling, richer tracing, and updated tests/client JS to consume the stream—this is a real feature/bugfix with lasting design value. Side A is a smaller UI polish commit (vote counts on garden rows, HUD unpin-via-POST instead of link) plus minor test additions, which is useful but more incremental and narrower in scope than B's protocol-level refactor.

~x-ai/grok-latest · winner B · 2:5 · permalink

B’s lasting value is the end-to-end fetch redesign: oneshot FetchJobResult from the Reddit worker, a dedicated fetch module, and SSE (fetching/complete/error) with client consumption so the UI can wait on real outcomes instead of fire-and-forget morph. A is solid but narrower—correct pin HUD unpin via set_garden_pin clear, pairwise vote counts on garden icons, plus tests/CSS—and does not change core async design the way B does.

openai/gpt-chat-latest · winner B · 3:1 · permalink

Side B introduces a substantial architectural improvement by moving entity fetching from a synchronous JS-morph response to an SSE-based workflow, adding a dedicated fetch module, streaming progress/completion events, worker completion notifications via oneshot channels, and client-side SSE handling. Side A improves the garden UI with pairwise vote counts, HUD unpin behavior, styling, and tests, but these are localized UX enhancements rather than a broad infrastructure change.

sides

A — c_3ff71f7eaeda (tommy-mor)

message

[30a67104] fixes

diff preview

diff --git a/agents.md b/agents.md
index a6a283716e09fcaba1fd690f4e877e0bbecda2c0..d9a924d2f77c444d9b112bbf37a480b963ace4f0 100644
--- a/agents.md
+++ b/agents.md
@@ -39,7 +39,7 @@ Strict **CSP** that blocks `eval` would break the current app. Other projects ma
 
 - **`VoteComparePost`:** On success returns **`text/javascript`** that **morphs** **`#vote-compare-preview`** (new ingest card) and **`#vote-edge-history-region`** (recomputed edge list). Uses **`RpcResult::PostOk`**’s **`post_id`** / **`post_index`** for the card. **`__rpc__`** carries **`form_action: "/ui"`**; **`thread_tag`** and ratio fields come from the same form as **`$form`** holes.
 
-- **Garden pin / compare voting:** Cookie **`slug_garden_pin`** via **`set_garden_pin`**. Pairwise UI: **`GET /vote/compare?…`** / **`GET /r/:room_key/vote/compare?…`**. HUD: **`#slug-pin-hud`** when **`layout`** passes garden metadata on **`body`**.
+- **Garden pin / compare voting:** Cookie **`slug_garden_pin`** via **`set_garden_pin`**. Pairwise UI: **`GET /vote/compare?…`** / **`GET /r/:room_key/vote/compare?…`**. HUD: **`#slug-pin-hud`** when **`layout`** passes garden metadata on **`body`**; the label is **`POST /ui`** **`set_garden_pin`** **`clear:true`** (**`slug_ui.js`**), not a permalink to the item.
 
 **Rule of thumb:** New **CLI or API** verbs → `RpcCommand`. New **in-page morph or form-driven** behavior that only makes sense in the browser → `HtmlUiAction`. If both need the same operation, implement the real work once (e.g. call shared RPC helpers from `post_ui_html`) and keep the wire shapes separate.
 
diff --git a/server/src/html/garden.rs b/server/src/html/garden.rs
index 8a46b1e92d38f2c390f88d48750d95d11388cd73..121d9498e8cb93d4d001dc1bbce23d74fbb958f5 100644
--- a/server/src/html/garden.rs
+++ b/server/src/html/garden.rs
@@ -16,7 +16,6 @@ use crate::{
     canonical_path::{canonicalize_item, canonicalize_tag},
     form_template::template_json_compact,
     html::{
-        forum::ingest_entry_markup,
         ui_action::UI_RPC_FIELD,
         user_can_post_room,
         JsBuilder,
@@ -111,6 +110,23 @@ fn votes_for_edge(content: &ContentState, a: &ItemId, b: &ItemId) -> Vec<crate::
     out
 }
 
+/// Number of vote ingests recorded for this unordered pair in `content` (same scope as ranking).
+fn edge_vote_count_for_pair(content: &ContentState, a: &ItemId, b: &ItemId) -> usize {
+    let (lo, hi) = canonical_edge_items(a, b);
+    let lo_s = lo.as_str();
+    let hi_s = hi.as_str();
+    content
+        .item_votes
+        .get(&lo)
+        .into_iter()
+        .flat_map(|q| q.iter())
+        .filter(|v| {
+            (v.a.as_str() == lo_s && v.b.as_str() == hi_s)
+                || (v.a.as_str() == hi_s && v.b.as_str() == lo_s)
+        })
+        .count()
+}
+
 fn vote_thread_tags_for_pair(content: &ContentState, a: &ItemId, b: &ItemId) -> Vec<String> {
     let set: HashSet<String> = content
         .item_threads
@@ -288,6 +304,7 @@ fn child_row_pin_or_vote(
     nav: &ThreadNav,
     row_item: &ItemId,
     pinned_room_and_item: Option<&(String, ItemId)>,
+    scope_content: &ContentState,
     next_path: &str,
 ) -> maud::Markup {
     let pin_matches_scope = pinned_room_and_item
@@ -315,7 +332,16 @@ fn child_row_pin_or_vote(
                 @if pi == row_item {
                     span class="ont-garden-pinned-here" title="Pinned" aria-label="Pinned" { "📌" }
                 } @else {
-                    a class="ont-garden-vote-ico" href=(vote_compare_href(nav, pi, row_item, None)) title="Vote vs pinned" aria-label="Vote" { "⚖" }
+                    @let nv = edge_vote_count_for_pair(scope_content, pi, row_item);
+                    @let tip = format!(
+                        "Compare and vote — {nv} pairwise vote{} in this scope for pinned vs this row",
+                        if nv == 1 { "" } else { "s" },
+                    );
+                    @let aria = format!("Vote; {} pairwise {}", nv, if nv == 1 { "vote" } else { "votes" });
+                    a class="ont-garden-vote-ico" href=(vote_compare_href(nav, pi, row_item, None)) title=(tip) aria-label=(aria) {
+                        span class="ont-garden-vote-glyph" aria-hidden="true" { "⚖" }
+                        span class="ont-garden-vote-count" { (format!("{}", nv)) }
+                    }
                 }
             } @else {
                 form method="POST" action="/ui" data-navigate="full" class="ont-pin-form ont-garden-pin-form" {
@@ -978,10 +1004,9 @@ async fn render_scope_view(
 ) -> axum::response::Response {
     let scope = nav.scope();
     let pin_ref = pinned_item_from_jar(&jar);
-    let model = {
-        let reduced = state.reduced.read().await;
-        build_item_page_view_model(&reduced, &scope, browse.item())
-    };
+    let reduced = state.reduced.read().await;
+    let model = build_item_page_view_model(&reduced, &scope, browse.item());
+    let scope_content = content_for_garden_view(&reduced, &scope);
     let thread_href = |tag: &str| nav.thread_url(tag);
     let external_empty_body = browse.is_external() && model.body.is_none();
     let cli_path_arg = item_display_path(&model.item);
@@ -1108,7 +1133,7 @@ async fn render_scope_view(
                                     @let item_url = item_href(r.item.as_str(), &nav);
                                     @let score_str = format!("{:.3}", r.score);
                                     li data-garden-item=(r.item.as_str()) {
-                                        (child_row_pin_or_vote(&nav, &r.item, pin_ref.as_ref(), &next_for_pin))
+                                        (child_row_pin_or_vote(&nav, &r.item, pin_ref.as_ref(), scope_content, &next_for_pin))
                                         a class="item-link" href=(item_url) { code { (item_display_path(r.item.as_str())) } }
                                         span class="ont-rank-score" { (score_str) }
                                     }
@@ -1124,7 +1149,7 @@ async fn render_scope_view(
                         ul class="ont-group-list" {
                             @for name in &model.child_rankings.unranked_items {
                                 li data-garden-item=(name.as_str()) {
-                                    (child_row_pin_or_vote(&nav, name, pin_ref.as_ref(), &next_for_pin))
+                                    (child_row_pin_or_vote(&nav, name, pin_ref.as_ref(), scope_content, &next_for_pin))
                                     @let href = item_href(name.as_str(), &nav);
                                     a class="item-link" href=(href) { code { (item_display_path(name.as_str())) } }
                                 }
@@ -1363,6 +1388,33 @@ mod tests {
         }));
     }
 
+    #[test]
+    fn edge_vote_count_for_pair_matches_votes_for_edge_len() {
+        use super::{
+            content_for_garden_view, edge_vote_count_for_pair, votes_for_edge,
+        };
+        use crate::path_types::ItemId;
+        let mut reduced = ReducerState::default();
+        apply_ingest(
+            &mut reduced,
+            1,
+            "@00000000-0000-0000-0000-000000000000:test:local/test\n\
+             ~/topic {root}\n\
+             ~/topic/a {alpha}\n\
+             ~/topic/b {beta}\n\
+             ~/topic/a 3:2 ~/topic/b {first vote}\n\
+             ~/topic/b 2:3 ~/topic/a {second vote}\n",
+        );
+        let content = content_for_garden_view(&reduced, &ScopeId::Public);
+        let a = ItemId::parse("~/topic/a").unwrap().normalized_storage();
+        let b = ItemId::parse("~/topic/b").unwrap().normalized_storage();
+        assert_eq!(
+            edge_vote_count_for_pair(content, &a, &b),
+            votes_for_edge(content, &a, &b).len()
+        );
+        assert_eq!(votes_for_edge(content, &a, &b).len(), 2);
+    }
+
     #[test]
     fn item_page_model_includes_body_and_unranked_without_votes() {
         let mut reduced = ReducerState::default();
diff --git a/server/static/slug_ui.js b/server/static/slug_ui.js
index c0de1cddbba78227dfb80bfd41e7b855b3a42bc3..86f935f8dd998f3d6df016f33b1e47f9780782ea 100644
--- a/server/static/slug_ui.js
+++ b/server/static/slug_ui.js
@@ -170,15 +170,6 @@
       return { room: raw.slice(0, i), item: raw.slice(i + 1) };
     }
 
-    function gardenItemHref(prefix, storageUrl) {
-      var marker = 'https://slug.social/~/';
-      if (storageUrl.indexOf(marker) === 0) {
-        var tail = storageUrl.slice(marker.length);
-        return prefix.replace(/\/$/, '') + (tail ? '/' + tail : '');
-      }
-      return storageUrl;
-    }
-
     function refreshPinHud() {
       var hud = document.getElementById('slug-pin-hud');
       if (!hud) return;
@@ -187,19 +178,37 @@
       var pin = decodePinCookie();
       hud.innerHTML = '';
       if (!pin || !prefix || pin.room !== bodyRoom) return;
-      var a = document.createElement('a');
-      a.className = 'slug-pin-hud-link';
-      a.href = gardenItemHref(prefix, pin.item);
-      a.title = 'Pinned item';
+      var form = document.createElement('form');
+      form.method = 'POST';
+      form.action = '/ui';
+      form.setAttribute('data-navigate', 'full');
+      form.className = 'slug-pin-hud-form';
+      var rpc = document.createElement('input');
+      rpc.type = 'hidden';
+      rpc.name = '__rpc__';
+      rpc.value = JSON.stringify({
+        action: 'set_garden_pin',
+        clear: true,
+        room_wire: '',
+        next: window.location.pathname + window.location.search,
+        form_action: '/ui',
+      });
+      form.appendChild(rpc);
+      var btn = document.createElement('button');
+      btn.type = 'submit';
+      btn.className = 'slug-pin-hud-link slug-pin-hud-unpin-btn';
+      btn.title = 'Unpin — removes this item from the corner HUD';
+      btn.setAttribute('aria-label', 'Unpin pinned item');
       var span = document.createElement('span');
       span.className = 'slug-pin-hud-glyph';
       span.setAttribute('aria-hidden', 'true');
       span.textContent = '📌';
-      a.appendChild(span);
+      btn.appendChild(span);
       var label = pin.item.replace(/^https:\/\/slug\.social\/~\/?/, '~/');
       if (label.length > 36) label = label.slice(0, 34) + '…';
-      a.appendChild(document.createTextNode(' ' + label));
-      hud.appendChild(a);
+      btn.appendChild(document.createTextNode(' ' + label));
+      form.appendChild(btn);
+      hud.appendChild(form);
     }
     refreshPinHud();
 
diff --git a/server/static/theme_default.css b/server/static/theme_default.css
index ec0fbe7acee0aa2802f978f14a9b0fc86e78c5b8..9178f0629cfb868348740e6dea1626dc6afb8345 100644
--- a/server/static/theme_default.css
+++ b/server/static/theme_default.css
@@ -799,6 +799,12 @@ details > summary::-webkit-details-marker { display: none; }
 }
 
 /* Pinned item HUD — bottom bar, same plane as spread */
+.slug-pin-hud-form {
+  display: inline;
+  margin: 0;
+  padding: 0;
+  border: none;
+}
 #slug-pin-hud.slug-pin-hud {
   margin-left: auto;
   max-width: min(42vw, 280px);
@@ -808,6 +814,13 @@ details > summary::-webkit-details-marker { display: none; }
   overflow: hidden;
   text-overflow: ellipsis;
 }
+.slug-pin-hud-link.slug-pin-hud-unpin-btn {
+  background: transparent;
+  border: none;
+  cursor: pointer;
+  font-size: inherit;
+  font-family: inherit;
+}
 .slug-pin-hud-link {
   color: var(--ui);
   text-decoration: none;
@@ -815,7 +828,10 @@ details > summary::-webkit-details-marker { display: none; }
   align-items: center;
   gap: 4px;
 }
-.slug-pin-hud-link:hover { color: var(--signal); }
+.slug-pin-hud-link:hover,
+.slug-pin-hud-unpin-btn:hover {
+  color: var(--signal);
+}
 .slug-pin-hud-glyph { font-size: 13px; line-height: 1; }
 
 /* Garden pin / vote controls */
@@ -890,10 +906,21 @@ span.ont-garden-pinned-here {
   align-items: center;
   justify-content: center;
 }
+a.ont-garden-vote-ico {
+  gap: 4px;
+}
 a.ont-garden-vote-ico:hover {
   color: var(--signal);
   background: var(--g4);
 }
+.ont-garden-v

… preview truncated; 4,237 characters omitted

download full diff A

B — c_06fce70179bc (tommy-mor)

message

[6d04afc2] refactor

diff preview

diff --git a/Cargo.lock b/Cargo.lock
index 2cea973082716e761ef6f5dd5886acc08ff9aac0..8c43fb75c472b102e6e1d3b837dce3355be898f2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -17,6 +17,28 @@ version = "1.0.102"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f202df86484c868dbad7eaa557ef785d5c66295e41b460ef922eca0723b842c"
 
+[[package]]
+name = "async-stream"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b5a71a6f37880a80d1d7f19efd781e4b5de42c88f0722cc13bcb6cc2cfe8476"
+dependencies = [
+ "async-stream-impl",
+ "futures-core",
+ "pin-project-lite",
+]
+
+[[package]]
+name = "async-stream-impl"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7c24de15d275a1ecfd47a380fb4d5ec9bfe0933f309ed5e705b775596a3574d"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "async-trait"
 version = "0.1.89"
@@ -1242,9 +1264,11 @@ dependencies = [
 name = "sorter2-server"
 version = "0.0.1"
 dependencies = [
+ "async-stream",
  "axum",
  "axum-extra",
  "dotenvy",
+ "futures-util",
  "maud",
  "reqwest",
  "serde",
diff --git a/server/Cargo.toml b/server/Cargo.toml
index bd600138b613bd0f546bdec217a5334cdcb20aa5..c940acb687fb141d21760a3d6656172013cf6f41 100644
--- a/server/Cargo.toml
+++ b/server/Cargo.toml
@@ -18,6 +18,8 @@ tracing = "0.1"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 reqwest = { version = "0.12", features = ["json"] }
 dotenvy = "0.15"
+async-stream = "0.3"
+futures-util = { version = "0.3", default-features = false, features = ["std"] }
 
 [dev-dependencies]
 reqwest = { version = "0.12", features = ["json"] }
diff --git a/server/src/api/ui_html.rs b/server/src/api/ui_html.rs
index b33a84e8bb5e817b26592868d88090e6d664d950..7af6527d03c483f33f3469ce6766c01a554c5fe3 100644
--- a/server/src/api/ui_html.rs
+++ b/server/src/api/ui_html.rs
@@ -6,7 +6,8 @@ use axum::{
 use std::collections::HashMap;
 
 use crate::{
-    html::{entity_section, input_panel, js_string_literal, ranking_panel, JsBuilder},
+    fetch,
+    html::{input_panel, js_string_literal, ranking_panel, JsBuilder},
     parser::parse_reddit_url,
     path_types::ItemId,
     reddit::ensure_partial_tree,
@@ -89,18 +90,8 @@ pub async fn post_ui_html(
         },
         HtmlUiAction::FetchEntity { item } => {
             let id = parse_item_param(&item);
-            if id.is_root() {
-                return ui_js_warn("nothing to fetch for the root").into_response();
-            }
-            state.queue_entity_fetch(id.clone());
-            let tree = state.tree.read().await;
-            let empty = crate::reducer::NodeState::default();
-            let node = tree.get(&id).unwrap_or(&empty);
-            let panel = entity_section(&id, node, true);
-            JsBuilder::new()
-                .morph_selector("#entity-section", panel)
-                .into_response()
-        },
+            fetch::fetch_entity_stream(state, id).into_response()
+        }
     }
 }
 
diff --git a/server/src/fetch/html.rs b/server/src/fetch/html.rs
new file mode 100644
index 0000000000000000000000000000000000000000..63634508496e224c38b9ec0308b7a6086462f925
--- /dev/null
+++ b/server/src/fetch/html.rs
@@ -0,0 +1,67 @@
+//! Markup for entity import / “Fetch from Reddit” (`POST /ui`, SSE response).
+
+use maud::{html, Markup};
+
+use crate::{
+    form_template::template_json_compact,
+    path_types::ItemId,
+    reddit::is_fetchable,
+    reducer::NodeState,
+    ui_action::UI_RPC_FIELD,
+};
+
+fn entity_panel(node: &NodeState) -> Markup {
+    html! {
+        @if let Some(data) = &node.data {
+            div id="entity-panel" class="entity-card" {
+                h2 { (data.title) }
+                @if let Some(author) = &data.author {
+                    p class="muted small" { "by " (author) }
+                }
+                @if let Some(body) = &data.body_html {
+                    div class="entity-body" { (maud::PreEscaped(body)) }
+                }
+            }
+        }
+    }
+}
+
+/// Reddit/API import — `POST /ui` with `fetch_entity` returns an SSE stream.
+pub fn fetch_entity_panel(item: &ItemId, has_data: bool, fetching: bool) -> Markup {
+    if !is_fetchable(item) {
+        return html! {};
+    }
+    let label = if fetching {
+        "Fetching…"
+    } else if has_data {
+        "Fetch more"
+    } else {
+        "Fetch from Reddit"
+    };
+    let rpc = template_json_compact(&serde_json::json!({
+        "action": "fetch_entity",
+        "item": item.as_str(),
+    }))
+    .expect("fetch_entity rpc template");
+    html! {
+        form method="post" action="/ui" id="fetch-entity-form" class="fetch-entity-form" {
+            input type="hidden" name=(UI_RPC_FIELD) value=(rpc);
+            @if fetching {
+                button type="submit" class="btn-secondary" disabled { (label) }
+            } @else {
+                button type="submit" class="btn-secondary" { (label) }
+            }
+        }
+    }
+}
+
+/// Entity card + fetch control (target `#entity-section` for Idiomorph / SSE).
+pub fn entity_section(item: &ItemId, node: &NodeState, fetching: bool) -> Markup {
+    let has_data = node.data.is_some();
+    html! {
+        section id="entity-section" class="demo-panel" {
+            (entity_panel(node))
+            (fetch_entity_panel(item, has_data, fetching))
+        }
+    }
+}
diff --git a/server/src/fetch/mod.rs b/server/src/fetch/mod.rs
new file mode 100644
index 0000000000000000000000000000000000000000..2290f9d3a0f1cbf1806c6339f82a4515c11cc3d3
--- /dev/null
+++ b/server/src/fetch/mod.rs
@@ -0,0 +1,115 @@
+//! Entity import over `POST /ui` as SSE (Reddit worker in [`crate::reddit`]).
+
+pub mod html;
+
+use std::convert::Infallible;
+use std::time::Duration;
+
+use async_stream::stream;
+use axum::response::sse::{Event, KeepAlive, Sse};
+use futures_util::Stream;
+use serde::Serialize;
+use tokio::sync::oneshot;
+
+use crate::{
+    path_types::ItemId,
+    reddit::FetchJobResult,
+    reducer::NodeState,
+    state::AppState,
+};
+
+pub fn now_ms() -> i64 {
+    let t = std::time::SystemTime::now()
+        .duration_since(std::time::UNIX_EPOCH)
+        .unwrap_or_default();
+    t.as_millis() as i64
+}
+
+#[derive(Serialize)]
+struct SseMorphPayload {
+    selector: &'static str,
+    html: String,
+}
+
+fn morph_complete_event(html: maud::Markup) -> Event {
+    let payload = SseMorphPayload {
+        selector: "#entity-section",
+        html: html.into_string(),
+    };
+    let data = serde_json::to_string(&payload).unwrap_or_else(|_| "{}".into());
+    Event::default().event("complete").data(data)
+}
+
+/// Stream `fetching` → `complete` / `error` for [`crate::ui_action::HtmlUiAction::FetchEntity`].
+pub fn fetch_entity_stream(
+    state: AppState,
+    id: ItemId,
+) -> Sse<impl Stream<Item = Result<Event, Infallible>>> {
+    tracing::debug!(item = %id, "fetch entity stream opened");
+
+    let stream = stream! {
+        if id.is_root() {
+            yield Ok(Event::default().event("error").data("{\"message\":\"nothing to fetch for the root\"}"));
+            return;
+        }
+
+        if !crate::reddit::is_fetchable(&id) {
+            tracing::debug!(item = %id, "fetch stream: not fetchable");
+            yield Ok(Event::default().event("error").data("{\"message\":\"this page cannot be fetched from Reddit\"}"));
+            return;
+        }
+
+        let fetching_html = {
+            let tree = state.tree.read().await;
+            let empty = NodeState::default();
+            let node = tree.get(&id).unwrap_or(&empty);
+            html::entity_section(&id, node, true).into_string()
+        };
+        let fetching_payload = serde_json::json!({
+            "selector": "#entity-section",
+            "html": fetching_html,
+        });
+        yield Ok(Event::default().event("fetching").data(fetching_payload.to_string()));
+
+        let (tx, rx) = oneshot::channel();
+        state.reddit.request_fetch(id.clone(), true, Some(tx));
+        tracing::debug!(item = %id, "fetch stream: queued reddit job");
+
+        let result = match rx.await {
+            Ok(r) => r,
+            Err(_) => {
+                tracing::warn!(item = %id, "fetch stream: worker dropped oneshot");
+                FetchJobResult::Failed("reddit worker stopped".into())
+            }
+        };
+
+        tracing::debug!(item = %id, ?result, "fetch stream: job finished");
+
+        match result {
+            FetchJobResult::Imported | FetchJobResult::NotFound => {
+                let tree = state.tree.read().await;
+                let empty = NodeState::default();
+                let node = tree.get(&id).unwrap_or(&empty);
+                yield Ok(morph_complete_event(html::entity_section(&id, node, false)));
+            }
+            FetchJobResult::SkippedCached | FetchJobResult::SkippedDuplicate => {
+                let tree = state.tree.read().await;
+                let empty = NodeState::default();
+                let node = tree.get(&id).unwrap_or(&empty);
+                yield Ok(morph_complete_event(html::entity_section(&id, node, false)));
+            }
+            FetchJobResult::RateLimited { reset_secs } => {
+                yield Ok(Event::default().event("error").data(
+                    serde_json::json!({"message": format!("Reddit rate limit — retry in {reset_secs}s")}).to_string(),
+                ));
+            }
+            FetchJobResult::Failed(msg) => {
+                yield Ok(Event::default().event("error").data(
+                    serde_json::json!({"message": msg}).to_string(),
+                ));
+            }
+        }
+    };
+
+    Sse::new(stream).keep_alive(KeepAlive::new().interval(Duration::from_secs(15)))
+}
diff --git a/server/src/html/mod.rs b/server/src/html/mod.rs
index db5b4c7f06b0be64603981166835cde268234f67..9314a7556306ddab969b896dbf4126b542a46722 100644
--- a/server/src/html/mod.rs
+++ b/server/src/html/mod.rs
@@ -7,10 +7,10 @@ use axum::{
 use maud::{html, Markup, DOCTYPE};
 
 use crate::{
+    fetch::html::entity_section,
     form_template::template_json_compact,
     path_types::ItemId,
     ranking::{top_bottom, RankedItem},
-    reddit::is_fetchable,
     reducer::{GroupState, NodeState},
     state::AppState,
     ui_action::UI_RPC_FIELD,
@@ -149,62 +149,6 @@ pub fn breadcrumb_path(item: &ItemId) -> Markup {
     }
 }
 
-fn entity_panel(node: &NodeState) -> Markup {
-    html! {
-        @if let Some(data) = &node.data {
-            div id="entity-panel" class="entity-card" {
-                h2 { (data.title) }
-                @if let Some(author) = &data.author {
-                    p class="muted small" { "by " (author) }
-                }
-                @if let Some(body) = &data.body_html {
-                    div class="entity-body" { (maud::PreEscaped(body)) }
-                }
-            }
-        }
-    }
-}
-
-/// Reddit/API import control — only shown on fetchable pages; never auto-fires.
-pub fn fetch_entity_panel(item: &ItemId, has_data: bool, fetching: bool) -> Markup {
-    if !is_fetchable(item) {
-        return html! {};
-    }
-    let label = if fetching {
-        "Fetching…"
-    } else if has_data {
-        "Fetch more"
-    } else {
-        "Fetch from Reddit"
-    };
-    let rpc = template_json_compact(&serde_json::json!({
-        "action": "fetch_entity",
-        "item": item.as_str(),
-    }))
-    .expect("fetch_entity rpc template");
-    html! {
-        form method="post" action="/ui" id="fetch-entity-form" class="fetch-entity-form" {
-            input type="hidden" name=(UI_RPC_FIELD) value=(rpc);
-            @if fetching {
-                button type="submit" class="btn-secondary" disabled { (label) }
-            } @else {
-                button type="submit" class="btn-secondary" { (label) }
-            }
-        }
-    }
-}
-
-/// Entity 

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download full diff B

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