constitution · epochs · watch · epoch 3

comparison

c_4772ee88dbe3 (tommy-mor) vs c_45dfa34511fe (tommy-mor)

download prompt · raw event · cmp_789c03941f8a24

council reasoning

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

Side A removes a small demo feature and adds a real, non-trivial improvement (async settlement worker + cached ranking scores) that fixes a legitimate concurrency/performance concern, but is scoped narrowly. Side B is a broader, more substantial refactor introducing shared, tested room-route encoding logic (room_route_segment/room_id_from_route_segment) that fixes duplicated/error-prone split_once logic across many call sites, plus adds URL normalization (YouTube canonicalization, query sorting) with extensive test coverage, providing more consistent, reusable, and better-tested infrastructure across the codebase.

~x-ai/grok-latest · winner A · 2:1 · permalink

Commit A removes the throwaway demo-counter path and replaces synchronous vote apply+log with a batched SettlementClient worker plus ranked_items_cached / warm_ranking_cache, so HTTP reads take read locks only and ranking is computed off the request path—a lasting concurrency and core-domain design. Commit B mainly pulls room short+slug into one path segment, centralizes room_route helpers, and adds YouTube/query URL normalization; useful but largely routing/identity polish versus A’s architectural write-path redesign.

openai/gpt-chat-latest · winner A · 4:1 · permalink

Side A makes a substantial architectural improvement by introducing a settlement worker that batches vote persistence and ranking recomputation, adds cached ranking reads (`ranked_items_cached`), warms the cache at startup, and switches HTTP rendering from write locks to read locks. It also removes the temporary demo counter and related event/UI code, whereas Side B is primarily a URL refactor that centralizes private-room route encoding/decoding and adds URL normalization helpers, which is useful but narrower in long-term impact.

sides

A — c_4772ee88dbe3 (tommy-mor)

message

[07715165] nice

diff preview

diff --git a/server/src/api/ui_html.rs b/server/src/api/ui_html.rs
index c3c62a76f424010d77a6090c84dd0b82098f573e..da2536112faea313352624cf2ce0ddd0ab3377c1 100644
--- a/server/src/api/ui_html.rs
+++ b/server/src/api/ui_html.rs
@@ -6,7 +6,7 @@ use axum::{
 use std::collections::HashMap;
 
 use crate::{
-    html::{demo_counter_panel, js_string_literal, ranking_panel, JsBuilder},
+    html::{js_string_literal, ranking_panel, JsBuilder},
     parser::parse_reddit_url,
     parser_render::parser_panel_morph,
     state::AppState,
@@ -35,13 +35,6 @@ pub async fn post_ui_html(
     };
 
     match action {
-        HtmlUiAction::BumpDemoCounter => {
-            let count = state.bump_demo_counter().await;
-            let panel = demo_counter_panel(count, state.event_log.path().to_string_lossy().as_ref());
-            JsBuilder::new()
-                .morph_selector("#demo-counter-panel", panel)
-                .into_response()
-        }
         HtmlUiAction::RecordVote {
             a,
             b,
@@ -54,8 +47,8 @@ pub async fn post_ui_html(
             {
                 return ui_js_warn(&e).into_response();
             }
-            let mut group = state.group.write().await;
-            let panel = ranking_panel(&mut group);
+            let group = state.group.read().await;
+            let panel = ranking_panel(&group);
             JsBuilder::new()
                 .morph_selector("#ranking-panel", panel)
                 .into_response()
@@ -87,20 +80,6 @@ mod tests {
         assert!(matches!(err, HtmlUiParseError::MissingRpc));
     }
 
-    #[test]
-    fn bump_action_deserializes() {
-        let template = serde_json::json!({ "action": "bump_demo_counter" });
-        let mut form = HashMap::new();
-        form.insert(
-            UI_RPC_FIELD.to_string(),
-            serde_json::to_string(&template).unwrap(),
-        );
-        assert_eq!(
-            parse_html_ui_from_form(&form).unwrap(),
-            HtmlUiAction::BumpDemoCounter
-        );
-    }
-
     #[test]
     fn record_vote_action_deserializes() {
         let template = serde_json::json!({
diff --git a/server/src/events.rs b/server/src/events.rs
index b969242534e184d4f0a689543a479670b08a18df..eff80aef0257f706d2341f666e63d6a3d921bf6e 100644
--- a/server/src/events.rs
+++ b/server/src/events.rs
@@ -5,8 +5,6 @@ use serde::{Deserialize, Serialize};
 pub enum Event {
     /// Page view recorded (path → counter in views.json).
     ViewRecorded { path: String, ts: i64 },
-    /// Demo counter bump from `POST /ui` (persisted in the single JSONL log).
-    DemoCounterBumped { ts: i64, value: u64 },
     /// Pairwise comparison vote (replayed into [`crate::reducer::GroupState`] on boot).
     VoteRecorded {
         ts: i64,
diff --git a/server/src/html/mod.rs b/server/src/html/mod.rs
index 5b1d0b5a887d89e7e80796aa7a6c8ed5baaf2782..d69ed962b5c8625bc83c933b1825f2cc1d0868e2 100644
--- a/server/src/html/mod.rs
+++ b/server/src/html/mod.rs
@@ -13,7 +13,7 @@ use crate::{
     form_template::template_json_compact,
     parser_action::ParserAction,
     parser_render::parser_panel,
-    ranking::ranked_items,
+    ranking::ranked_items_cached,
     reducer::GroupState,
     state::AppState,
     ui_action::UI_RPC_FIELD,
@@ -199,10 +199,8 @@ fn layout(title: &str, body: Markup, views: u64, theme: &str, theme_next: &str)
     }
 }
 
-pub fn ranking_panel(group: &mut GroupState) -> Markup {
-    const MAX_ITERS: usize = 10_000;
-    const TOL: f64 = 1e-8;
-    let items = ranked_items(group, MAX_ITERS, TOL);
+pub fn ranking_panel(group: &GroupState) -> Markup {
+    let items = ranked_items_cached(group);
     html! {
         section id="ranking-panel" class="demo-panel" {
             h2 { "Ranking" }
@@ -260,35 +258,6 @@ pub fn vote_panel() -> Markup {
 }
 
 
-pub fn demo_counter_panel(count: u64, event_log_path: &str) -> Markup {
-    let rpc = template_json_compact(&serde_json::json!({ "action": "bump_demo_counter" }))
-        .expect("rpc json");
-    html! {
-        section id="demo-counter-panel" class="demo-panel" {
-            h1 { "sorter2" }
-            p class="muted" {
-                "Pairwise ranking scaffold — votes persist to JSONL and replay on boot."
-            }
-            p class="demo-count" {
-                strong { "Counter: " }
-                span id="demo-count-value" { (count) }
-            }
-            p class="muted small" {
-                "Event log: " code { (event_log_path) }
-            }
-            form method="post" action="/ui" id="demo-bump-form" {
-                input type="hidden" name=(UI_RPC_FIELD) value=(rpc);
-                button type="submit" class="btn-primary" { "Bump (POST /ui → eval JS)" }
-            }
-            p class="muted small" {
-                "Uses hidden "
-                code { "__rpc__" }
-                " JSON + Idiomorph morph — no full page reload."
-            }
-        }
-    }
-}
-
 pub async fn home(
     State(state): State<AppState>,
     jar: CookieJar,
@@ -297,16 +266,15 @@ pub async fn home(
     let path = uri.path().to_string();
     state.views.increment(path.clone());
     let views = state.views.get_views(&path);
-    let count = *state.demo_counter.read().await;
     let theme = theme_from_jar(&jar);
     let theme_next = theme_next_from_uri(&uri);
-    let mut group = state.group.write().await;
+    let group = state.group.read().await;
     let empty_action = ParserAction::suggest(String::new(), None);
     let body = html! {
+        h1 { "sorter2" }
         (parser_panel("", &empty_action))
         (vote_panel())
-        (ranking_panel(&mut group))
-        (demo_counter_panel(count, state.event_log.path().to_string_lossy().as_ref()))
+        (ranking_panel(&group))
     };
     layout("sorter2", body, views, theme, &theme_next)
 }
diff --git a/server/src/lib.rs b/server/src/lib.rs
index 6716c5b282e7980a7a0f03d63ad8b25eda61cc55..fa423640d598f4ba97a5885d228e78d7b97f7a22 100644
--- a/server/src/lib.rs
+++ b/server/src/lib.rs
@@ -9,6 +9,7 @@ pub mod parser_render;
 pub mod path_types;
 pub mod ranking;
 pub mod reducer;
+pub mod settlement;
 pub mod state;
 pub mod ui_action;
 pub mod views;
diff --git a/server/src/ranking.rs b/server/src/ranking.rs
index 89d3280126a8d8f841721ce8cb63ff735d68752a..2d706762792ba9239bb3f1c2e4974a2fde908013 100644
--- a/server/src/ranking.rs
+++ b/server/src/ranking.rs
@@ -91,6 +91,11 @@ pub fn compute_group_ranking(group: &mut GroupState, max_iters: usize, tol: f64)
 
 pub fn ranked_items(group: &mut GroupState, max_iters: usize, tol: f64) -> Vec<RankedItem> {
     compute_group_ranking(group, max_iters, tol);
+    ranked_items_cached(group)
+}
+
+/// Read cached scores without recomputing (HTTP fast path).
+pub fn ranked_items_cached(group: &GroupState) -> Vec<RankedItem> {
     let mut items: Vec<RankedItem> = group
         .idx_to_item
         .iter()
@@ -105,7 +110,12 @@ pub fn ranked_items(group: &mut GroupState, max_iters: usize, tol: f64) -> Vec<R
     items
 }
 
-fn compute_scores_from_edges(n: usize, edges: impl Iterator<Item = ((usize, usize), f64)>, max_iters: usize, tol: f64) -> Vec<f64> {
+pub fn compute_scores_from_edges(
+    n: usize,
+    edges: impl Iterator<Item = ((usize, usize), f64)>,
+    max_iters: usize,
+    tol: f64,
+) -> Vec<f64> {
     if n == 0 {
         return vec![];
     }
diff --git a/server/src/settlement.rs b/server/src/settlement.rs
new file mode 100644
index 0000000000000000000000000000000000000000..1f722ceaea62cda22c28ab71551f259fbf049b81
--- /dev/null
+++ b/server/src/settlement.rs
@@ -0,0 +1,114 @@
+use std::sync::Arc;
+
+use tokio::sync::{mpsc, oneshot, RwLock};
+
+use crate::{
+    event_log::EventLog,
+    events::Event,
+    ranking::compute_scores_from_edges,
+    reducer::{GroupState, VoteData},
+};
+
+const MAX_ITERS: usize = 10_000;
+const TOL: f64 = 1e-8;
+
+pub struct SettlementCommand {
+    pub vote: VoteData,
+    pub event: Event,
+    pub reply: oneshot::Sender<Result<(), String>>,
+}
+
+#[derive(Clone)]
+pub struct SettlementClient {
+    tx: mpsc::Sender<SettlementCommand>,
+}
+
+impl SettlementClient {
+    pub fn spawn(group: Arc<RwLock<GroupState>>, event_log: Arc<EventLog>) -> Self {
+        let (tx, rx) = mpsc::channel(64);
+        tokio::spawn(settlement_worker(rx, group, event_log));
+        Self { tx }
+    }
+
+    pub async fn record_vote(&self, vote: VoteData, event: Event) -> Result<(), String> {
+        let (reply, rx) = oneshot::channel();
+        self.tx
+            .send(SettlementCommand {
+                vote,
+                event,
+                reply,
+            })
+            .await
+            .map_err(|_| "settlement worker stopped".to_string())?;
+        rx.await
+            .map_err(|_| "settlement worker stopped".to_string())?
+    }
+}
+
+async fn settlement_worker(
+    mut rx: mpsc::Receiver<SettlementCommand>,
+    group: Arc<RwLock<GroupState>>,
+    event_log: Arc<EventLog>,
+) {
+    while let Some(first) = rx.recv().await {
+        let mut batch = vec![first];
+        while let Ok(more) = rx.try_recv() {
+            batch.push(more);
+        }
+
+        let mut disk_err: Option<String> = None;
+        for cmd in &batch {
+            if let Err(e) = event_log.append(&cmd.event).await {
+                disk_err = Some(e.to_string());
+                break;
+            }
+        }
+
+        if let Some(err) = disk_err {
+            for cmd in batch {
+                let _ = cmd.reply.send(Err(err.clone()));
+            }
+            continue;
+        }
+
+        let (edges, n) = {
+            let mut w = group.write().await;
+            for cmd in &batch {
+                w.apply_vote(cmd.vote.clone());
+            }
+            (w.edges.clone(), w.idx_to_item.len())
+        };
+
+        let new_scores = compute_scores_from_edges(
+            n,
+            edges.iter().map(|(&k, &v)| (k, v)),
+            MAX_ITERS,
+            TOL,
+        );
+
+        {
+            let mut w = group.write().await;
+            w.cached_scores = new_scores;
+            w.dirty = false;
+        }
+
+        for cmd in batch {
+            let _ = cmd.reply.send(Ok(()));
+        }
+    }
+}
+
+/// Compute ranking cache from current in-memory edges (startup replay only).
+pub fn warm_ranking_cache(group: &mut GroupState) {
+    if !group.dirty {
+        return;
+    }
+    let n = group.idx_to_item.len();
+    group.cached_scores = compute_scores_from_edges(
+        n,
+        group.edges.iter().map(|(&k, &v)| (k, v)),
+        MAX_ITERS,
+        TOL,
+    );
+    group.dirty = false;
+}
diff --git a/server/src/state.rs b/server/src/state.rs
index 8ec9902e2ecc31cf8208f7ad6365891dc5537eed..1922541a4064c2de1df2d993a461cae783320e05 100644
--- a/server/src/state.rs
+++ b/server/src/state.rs
@@ -6,6 +6,7 @@ use crate::{
     event_log::EventLog,
     events::Event,
     reducer::{GroupState, VoteData},
+    settlement::{warm_ranking_cache, SettlementClient},
     views::ViewStore,
 };
 
@@ -38,8 +39,8 @@ pub struct AppState {
     pub cfg: Arc<AppConfig>,
     pub event_log: Arc<EventLog>,
     pub views: ViewStore,
-    pub demo_counter: Arc<RwLock<u64>>,
     pub group: Arc<RwLock<GroupState>>,
+    settlement: SettlementClient,
 }
 
 impl AppState {
@@ -48,14 +49,10 @@ impl AppState {
         let views_path = format!("{}/views.json", cfg.data_dir);
         let views = ViewStore::new(&views_path);
 
-        let mut demo_counter: u64 = 0;
         let mut group = GroupState::new();
         if let Ok((events, _)) = event_log.load_all().await {
             for ev in events {
                 match ev {
-                    Event::DemoCounterBumped { value, .. } => {
-                        demo_counter = demo_counter.max(value);
-                    }
                     Event::VoteRecorded {
                         ts,
                         a,
@@ -74,30 +71,20 @@ impl AppState {
             }
         }
 
+       

… preview truncated; 6,096 characters omitted

download full diff A

B — c_45dfa34511fe (tommy-mor)

message

[5ca518f6] url refactor

diff preview

diff --git a/Cargo.lock b/Cargo.lock
index 67a09a3b54f778fa7e857fdd589c3ed9c92e1322..ad7e4fe6d4ba2f2b033916194c1ef1ed873f1d46 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1757,6 +1757,7 @@ name = "slug-types"
 version = "0.1.0"
 dependencies = [
  "serde",
+ "url",
 ]
 
 [[package]]
@@ -2272,6 +2273,7 @@ dependencies = [
  "idna",
  "percent-encoding",
  "serde",
+ "serde_derive",
 ]
 
 [[package]]
diff --git a/server/src/api/ui_html.rs b/server/src/api/ui_html.rs
index 606f7d6f97a4428efb90d1e0d544934c861fc4c5..cd3e0f0afd972d9ad9e7e4b92c5fa4c22bb8f620 100644
--- a/server/src/api/ui_html.rs
+++ b/server/src/api/ui_html.rs
@@ -270,10 +270,10 @@ fn post_redirect_location(room: &str, thread_tag: &str) -> String {
         format!("/t/{tag}")
     } else {
         let room = room.trim();
-        let Some((a, b)) = room.split_once('/') else {
+        let Some(seg) = slug_types::room_route_segment(room) else {
             return "/".to_string();
         };
-        format!("/r/{a}/{b}/t/{tag}")
+        format!("/r/{seg}/t/{tag}")
     }
 }
 
diff --git a/server/src/api/write_actor.rs b/server/src/api/write_actor.rs
index cb78d2f3f95b1bc163c1fb064d1d5f657e18000f..f9c3b8bd3fbf8fcb9c035e1a1572fef0b08fa8a9 100644
--- a/server/src/api/write_actor.rs
+++ b/server/src/api/write_actor.rs
@@ -19,13 +19,15 @@ use crate::{
 use super::auth::{issue_token_for_user, verify_token};
 use super::helpers::{now_ms, resolve_item};
 use super::validate::{normalize_room_and_thread, validate_ingest_document};
-use slug_types::RpcResult;
+use slug_types::{room_route_segment, RpcResult, ROOM_SHORT_ID_LEN};
 
 fn gen_short_id() -> String {
     use rand::Rng;
     const ALPHABET: &[u8] = b"0123456789abcdefghijklmnopqrstuvwxyz";
     let mut rng = rand::thread_rng();
-    (0..7).map(|_| ALPHABET[rng.gen_range(0..ALPHABET.len())] as char).collect()
+    (0..ROOM_SHORT_ID_LEN)
+        .map(|_| ALPHABET[rng.gen_range(0..ALPHABET.len())] as char)
+        .collect()
 }
 
 fn parse_capability(s: &str) -> Result<crate::events::ThreadCapability, String> {
@@ -55,8 +57,8 @@ async fn broadcast_web_refresh(state: &AppState, room_key: &str, thread_id: &str
     let feed_id = if room_key == "public" { "thread-feed" } else { "room-thread-feed" };
     let thread_url = if room_key == "public" {
         format!("/t/{thread_id}")
-    } else if let Some((short, slug)) = room_key.split_once('/') {
-        format!("/r/{short}/{slug}/t/{thread_id}")
+    } else if let Some(seg) = room_route_segment(room_key) {
+        format!("/r/{seg}/t/{thread_id}")
     } else {
         format!("/t/{thread_id}")
     };
@@ -78,8 +80,8 @@ async fn broadcast_web_refresh(state: &AppState, room_key: &str, thread_id: &str
     let js = builder.build();
     let mut path_prefixes = vec![if room_key == "public" {
         "/".to_string()
-    } else if let Some((short, slug)) = room_key.split_once('/') {
-        format!("/r/{short}/{slug}")
+    } else if let Some(seg) = room_route_segment(room_key) {
+        format!("/r/{seg}")
     } else {
         "/".to_string()
     }];
diff --git a/server/src/html/forum/nav.rs b/server/src/html/forum/nav.rs
index 0ee33d91160fc5542817b5e3e9ab4fee1d0e600f..48fe11e46731670874ff8b6b05baa6f09ae0b7e4 100644
--- a/server/src/html/forum/nav.rs
+++ b/server/src/html/forum/nav.rs
@@ -1,7 +1,8 @@
 use crate::canonical_path::canonicalize_item;
 use crate::reducer::ScopeId;
+use slug_types::room_route_segment;
 
-/// URL helpers for public `/t/…` and private room threads `/r/{short}/{slug}/t/…`.
+/// URL helpers for public `/t/…` and private room threads `/r/{short}{slug}/t/…`.
 #[derive(Clone)]
 pub struct ThreadNav {
     pub room_wire: String,
@@ -22,18 +23,15 @@ impl ThreadNav {
         }
     }
 
-    /// `room_id` wire form `shortid/slug`.
+    /// `room_id` wire form `shortid/slug` (HTTP uses [`slug_types::room_route_segment`]).
     pub(crate) fn from_room_id(room_id: &str) -> Option<Self> {
-        let (short, slug) = room_id.split_once('/')?;
-        if short.is_empty() || slug.is_empty() {
-            return None;
-        }
+        let room_seg = room_route_segment(room_id)?;
         Some(Self {
             room_wire: room_id.to_string(),
             scope: ScopeId::Room(room_id.to_string()),
-            room_path: format!("/r/{short}/{slug}"),
-            thread_path_prefix: format!("/r/{short}/{slug}/t"),
-            garden_path_prefix: format!("/r/{short}/{slug}/~"),
+            room_path: format!("/r/{room_seg}"),
+            thread_path_prefix: format!("/r/{room_seg}/t"),
+            garden_path_prefix: format!("/r/{room_seg}/~"),
         })
     }
 
diff --git a/server/src/html/forum/post_single.rs b/server/src/html/forum/post_single.rs
index c316f8f836df9d4ef9c05ebd9e54f699540e6d72..473747b3da3d4d7a54b5e0c63165d2533df643e1 100644
--- a/server/src/html/forum/post_single.rs
+++ b/server/src/html/forum/post_single.rs
@@ -93,12 +93,14 @@ pub async fn thread_post_view(
 
 pub async fn room_thread_post_view(
     State(state): State<AppState>,
-    Path((room_short, room_slug, tag, index_str)): Path<(String, String, String, String)>,
+    Path((room_key, tag, index_str)): Path<(String, String, String)>,
     headers: HeaderMap,
     jar: CookieJar,
     uri: Uri,
 ) -> impl IntoResponse {
-    let room_id = format!("{room_short}/{room_slug}");
+    let Some(room_id) = slug_types::room_id_from_route_segment(&room_key) else {
+        return (StatusCode::NOT_FOUND, "bad room path").into_response();
+    };
     let reduced = state.reduced.read().await;
     let user = optional_principal(&headers, &jar, &reduced);
     if !user_can_view_room(&reduced, &room_id, user.as_deref()) {
diff --git a/server/src/html/forum/views.rs b/server/src/html/forum/views.rs
index be5df1745ef580891a167c23c3dd6c06f804f295..1ec421f84335cbfe7f9db775b73a8ed24b197174 100644
--- a/server/src/html/forum/views.rs
+++ b/server/src/html/forum/views.rs
@@ -183,16 +183,18 @@ pub async fn thread_view(
     thread_view_inner(state, tag, q, ThreadNav::public(), headers, jar, uri).await
 }
 
-/// Room thread — `/r/:short/:slug/t/:tag`
+/// Room thread — `/r/:room_key/t/:tag` (`room_key` = `{short}{slug}`).
 pub async fn room_thread_view(
     State(state): State<AppState>,
-    Path((room_short, room_slug, tag)): Path<(String, String, String)>,
+    Path((room_key, tag)): Path<(String, String)>,
     Query(q): Query<ThreadViewQuery>,
     headers: HeaderMap,
     jar: CookieJar,
     uri: Uri,
 ) -> impl IntoResponse {
-    let room_id = format!("{room_short}/{room_slug}");
+    let Some(room_id) = slug_types::room_id_from_route_segment(&room_key) else {
+        return (StatusCode::NOT_FOUND, "bad room path").into_response();
+    };
     let reduced = state.reduced.read().await;
     let user = optional_principal(&headers, &jar, &reduced);
     if !user_can_view_room(&reduced, &room_id, user.as_deref()) {
@@ -226,15 +228,17 @@ pub(super) fn room_not_found_page(jar: &CookieJar, uri: &Uri) -> impl IntoRespon
     (StatusCode::NOT_FOUND, Html(page.into_string()))
 }
 
-/// Private room index — `/r/:short/:slug`
+/// Private room index — `/r/:room_key`
 pub async fn room_page(
     State(state): State<AppState>,
-    Path((room_short, room_slug)): Path<(String, String)>,
+    Path(room_key): Path<String>,
     headers: HeaderMap,
     jar: CookieJar,
     uri: Uri,
 ) -> impl IntoResponse {
-    let room_id = format!("{room_short}/{room_slug}");
+    let Some(room_id) = slug_types::room_id_from_route_segment(&room_key) else {
+        return (StatusCode::NOT_FOUND, "room not found").into_response();
+    };
     let now = now_ms();
     let reduced = state.reduced.read().await;
     if !reduced.rooms.contains(&room_id) {
@@ -266,7 +270,10 @@ pub async fn room_page(
     let audit_cli = format!("npx slugsocial private {room_id} audit");
     drop(reduced);
 
-    let slug_display = room_slug.as_str();
+    let slug_display = room_id
+        .split_once('/')
+        .map(|(_, slug)| slug)
+        .unwrap_or(room_id.as_str());
     let page = layout(
         &format!("room {slug_display} — slug.social"),
         "view-thread",
diff --git a/server/src/html/garden.rs b/server/src/html/garden.rs
index 423f23fd8c9ad7b7f454d6ea7a9a7607a4c9c5b9..e615dd356bcf634232d85610c0a26235ead125fd 100644
--- a/server/src/html/garden.rs
+++ b/server/src/html/garden.rs
@@ -309,12 +309,14 @@ pub async fn external_ontology_path(
 
 pub async fn room_garden_index(
     State(state): State<AppState>,
-    Path((room_short, room_slug)): Path<(String, String)>,
+    Path(room_key): Path<String>,
     headers: HeaderMap,
     jar: CookieJar,
     uri: Uri,
 ) -> impl IntoResponse {
-    let room_id = format!("{room_short}/{room_slug}");
+    let Some(room_id) = slug_types::room_id_from_route_segment(&room_key) else {
+        return (StatusCode::NOT_FOUND, "bad room path").into_response();
+    };
     let Some(nav) = ThreadNav::from_room_id(&room_id) else {
         return (StatusCode::NOT_FOUND, "bad room path").into_response();
     };
@@ -341,12 +343,14 @@ pub async fn room_garden_index(
 
 pub async fn room_external_garden_index(
     State(state): State<AppState>,
-    Path((room_short, room_slug)): Path<(String, String)>,
+    Path(room_key): Path<String>,
     headers: HeaderMap,
     jar: CookieJar,
     uri: Uri,
 ) -> impl IntoResponse {
-    let room_id = format!("{room_short}/{room_slug}");
+    let Some(room_id) = slug_types::room_id_from_route_segment(&room_key) else {
+        return (StatusCode::NOT_FOUND, "bad room path").into_response();
+    };
     let Some(nav) = ThreadNav::from_room_id(&room_id) else {
         return (StatusCode::NOT_FOUND, "bad room path").into_response();
     };
@@ -416,12 +420,14 @@ pub async fn room_external_garden_index(
 
 pub async fn room_external_ontology_path(
     State(state): State<AppState>,
-    Path((room_short, room_slug, path)): Path<(String, String, String)>,
+    Path((room_key, path)): Path<(String, String)>,
     headers: HeaderMap,
     jar: CookieJar,
     uri: Uri,
 ) -> impl IntoResponse {
-    let room_id = format!("{room_short}/{room_slug}");
+    let Some(room_id) = slug_types::room_id_from_route_segment(&room_key) else {
+        return (StatusCode::NOT_FOUND, "bad room path").into_response();
+    };
     let Some(nav) = ThreadNav::from_room_id(&room_id) else {
         return (StatusCode::NOT_FOUND, "bad room path").into_response();
     };
@@ -442,12 +448,14 @@ pub async fn room_external_ontology_path(
 
 pub async fn room_ontology_path(
     State(state): State<AppState>,
-    Path((room_short, room_slug, path)): Path<(String, String, String)>,
+    Path((room_key, path)): Path<(String, String)>,
     headers: HeaderMap,
     jar: CookieJar,
     uri: Uri,
 ) -> impl IntoResponse {
-    let room_id = format!("{room_short}/{room_slug}");
+    let Some(room_id) = slug_types::room_id_from_route_segment(&room_key) else {
+        return (StatusCode::NOT_FOUND, "bad room path").into_response();
+    };
     let Some(nav) = ThreadNav::from_room_id(&room_id) else {
         return (StatusCode::NOT_FOUND, "bad room path").into_response();
     };
diff --git a/server/src/html/search.rs b/server/src/html/search.rs
index 43e6ebf36cf0fe72c96f0f9d850bea51ac094c43..f01732f7edb32c68fcc10c39545c8f56476adb27 100644
--- a/server/src/html/search.rs
+++ b/server/src/html/search.rs
@@ -351,8 +351,8 @@ fn render_search_results(results: &SearchResults, query: &str) -> Markup {
                     ul class="search-posts" {
                         @for r in &results.posts {
                             @let (post_href, post_label) = if let Some((room, tag)) = r.thread.split_once("/#") {
-                                if let Some((short, slug)) = room.split_once('/') {
-                                    (format!("/r/{short}/{slug}/t/{tag}"), format!("{room}/#{tag}"))
+                                if let Some(seg) = slug_types::room_route_segment(room) {
+                           

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