constitution · epochs · watch · epoch 3

comparison

c_14dd365ffe22 (tommy-mor) vs c_6f04dcb2e38c (tommy-mor)

download prompt · raw event · cmp_706767ef867fe4

council reasoning

~anthropic/claude-sonnet-latest · winner B · 3:2 · permalink

Side B removes a real architectural inconsistency (dual legacy/Evidence code paths for epoch/commit rendering), simplifying and hardening the evidence system with corresponding test updates across Python and Clojure, which is a substantive correctness/maintainability improvement. Side A is a solid but narrower refactor (dropping theme switching, adding /~/ browse routes) that is useful but smaller in scope and impact than B's cross-cutting cleanup of legacy projection logic.

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

B removes legacy GitDiscovery projection paths and helper functions that invented epoch/commit history, enforcing required Evidence envelopes and schema fields on Emission while simplifying the detail pages and tests to a single source of truth. A mainly deletes the incomplete theme cookie/CSS/form machinery and renames static assets, with the /~/ browse_href routing as a useful but narrower URL cleanup.

openai/gpt-chat-latest · winner A · 4:3 · permalink

Side A introduces a durable routing and URL design improvement by replacing query-based item navigation with canonical browse paths (`/~/...`), centralizing link generation/parsing in `ItemId` (`browse_href`, `from_browse_uri`), updating redirects, and adding integration tests. Side B mainly removes legacy compatibility code to make the system Evidence-only and simplifies related pages, which is a meaningful cleanup but is more of a schema transition than a broadly reusable architectural enhancement.

sides

A — c_14dd365ffe22 (tommy-mor)

message

[8d5328d3] -theme

diff preview

diff --git a/server/src/api/ui_html.rs b/server/src/api/ui_html.rs
index 82b2aa51d21ada1d0d849d3ddfc3a81e4241d861..e74e42e0f0ffc4224f5ef5421b486a5f35434999 100644
--- a/server/src/api/ui_html.rs
+++ b/server/src/api/ui_html.rs
@@ -73,11 +73,7 @@ pub async fn post_ui_html(
                     ensure_partial_tree(&mut tree, &item);
                 }
                 let _ = state.ensure_node(&item).await;
-                let dest = if item.is_root() {
-                    "/".to_string()
-                } else {
-                    format!("/?item={}", item.as_str())
-                };
+                let dest = item.browse_href();
                 JsBuilder::new()
                     .raw(&format!(
                         "window.location.href={};",
diff --git a/server/src/html/mod.rs b/server/src/html/mod.rs
index c973cb718ac74b95570dabea76e24459417790b9..a8353c6de0cd6d268219e552b7ca1ba4e3000585 100644
--- a/server/src/html/mod.rs
+++ b/server/src/html/mod.rs
@@ -1,13 +1,10 @@
 use axum::{
     body::Body,
     extract::{Path, State},
-    http::{header, HeaderValue, StatusCode, Uri},
+    http::{header, StatusCode, Uri},
     response::{IntoResponse, Response},
-    Form,
 };
-use axum_extra::extract::cookie::CookieJar;
 use maud::{html, Markup, DOCTYPE};
-use serde::Deserialize;
 
 use crate::{
     form_template::template_json_compact,
@@ -15,96 +12,25 @@ use crate::{
     path_types::ItemId,
     ranking::{top_bottom, RankedItem},
     reducer::{GroupState, NodeState},
-    state::{parse_item_param, AppState},
+    state::AppState,
     ui_action::UI_RPC_FIELD,
 };
 
-const THEME_DEFAULT_CSS: &str = include_str!("../../static/theme_default.css");
-const THEME_RETRO_CSS: &str = include_str!("../../static/theme_retro.css");
+const SORTER_CSS: &str = include_str!("../../static/sorter.css");
 const SORTER_UI_JS: &str = include_str!("../../static/sorter_ui.js");
 
-pub const SORTER_THEME_COOKIE: &str = "sorter-theme";
-
-pub fn normalize_theme(raw: &str) -> &'static str {
-    match raw {
-        "retro" => "retro",
-        _ => "default",
-    }
-}
-
-pub fn theme_from_jar(jar: &CookieJar) -> &'static str {
-    jar.get(SORTER_THEME_COOKIE)
-        .map(|c| normalize_theme(c.value()))
-        .unwrap_or("default")
-}
-
-pub fn theme_next_from_uri(uri: &Uri) -> String {
-    uri.path_and_query()
-        .map(|pq| pq.as_str().to_string())
-        .filter(|s| !s.is_empty())
-        .unwrap_or_else(|| "/".to_string())
-}
-
-pub fn theme_cookie_header_value(theme: &str) -> HeaderValue {
-    let t = normalize_theme(theme);
-    let s = format!("{SORTER_THEME_COOKIE}={t}; Path=/; SameSite=Lax; Max-Age=31536000");
-    HeaderValue::from_str(&s).expect("theme cookie must be ASCII")
-}
-
-fn sanitize_theme_next(next: Option<&str>) -> String {
-    let s = next.unwrap_or("/").trim();
-    if s.starts_with('/') && !s.starts_with("//") && s.len() < 8192 {
-        s.to_string()
-    } else {
-        "/".to_string()
-    }
-}
-
-#[derive(Debug, Deserialize)]
-pub struct ThemeForm {
-    theme: String,
-    next: Option<String>,
-}
-
-pub async fn post_theme(Form(form): Form<ThemeForm>) -> impl IntoResponse {
-    let theme = normalize_theme(&form.theme);
-    let next = sanitize_theme_next(form.next.as_deref());
-    let loc =
-        HeaderValue::try_from(next.as_str()).unwrap_or_else(|_| HeaderValue::from_static("/"));
-    Response::builder()
-        .status(StatusCode::SEE_OTHER)
-        .header(header::LOCATION, loc)
-        .header(header::SET_COOKIE, theme_cookie_header_value(theme))
-        .body(Body::empty())
-        .expect("theme redirect response")
-}
-
 pub async fn serve_static(Path(filename): Path<String>) -> impl IntoResponse {
-    if filename == "sorter_ui.js" {
-        return Response::builder()
-            .status(StatusCode::OK)
-            .header(header::CONTENT_TYPE, "text/javascript; charset=utf-8")
-            .header(header::CACHE_CONTROL, "public, max-age=3600")
-            .body(SORTER_UI_JS.to_string())
-            .unwrap()
-            .into_response();
-    }
-
-    let theme = filename
-        .strip_prefix("theme_")
-        .and_then(|s| s.strip_suffix(".css"));
-
-    let css = match theme {
-        Some("default") => THEME_DEFAULT_CSS,
-        Some("retro") => THEME_RETRO_CSS,
+    let (content_type, body) = match filename.as_str() {
+        "sorter.css" => ("text/css; charset=utf-8", SORTER_CSS),
+        "sorter_ui.js" => ("text/javascript; charset=utf-8", SORTER_UI_JS),
         _ => return (StatusCode::NOT_FOUND, "static file not found").into_response(),
     };
 
     Response::builder()
         .status(StatusCode::OK)
-        .header(header::CONTENT_TYPE, "text/css; charset=utf-8")
+        .header(header::CONTENT_TYPE, content_type)
         .header(header::CACHE_CONTROL, "public, max-age=3600")
-        .body(css.to_string())
+        .body(body.to_string())
         .unwrap()
         .into_response()
 }
@@ -162,8 +88,7 @@ fn asset_version() -> &'static str {
     V.get_or_init(|| {
         use std::hash::{Hash, Hasher};
         let mut h = std::collections::hash_map::DefaultHasher::new();
-        THEME_DEFAULT_CSS.hash(&mut h);
-        THEME_RETRO_CSS.hash(&mut h);
+        SORTER_CSS.hash(&mut h);
         SORTER_UI_JS.hash(&mut h);
         format!("{:x}", h.finish())
     })
@@ -176,9 +101,9 @@ pub fn now_ms() -> i64 {
     t.as_millis() as i64
 }
 
-fn layout(title: &str, body: Markup, views: u64, theme: &str, theme_next: &str) -> Markup {
+fn layout(title: &str, body: Markup, views: u64) -> Markup {
     let ver = asset_version();
-    let css_href = format!("/static/theme_{theme}.css?v={ver}");
+    let css_href = format!("/static/sorter.css?v={ver}");
     let js_src = format!("/static/sorter_ui.js?v={ver}");
     html! {
         (DOCTYPE)
@@ -187,7 +112,7 @@ fn layout(title: &str, body: Markup, views: u64, theme: &str, theme_next: &str)
                 meta charset="utf-8";
                 meta name="viewport" content="width=device-width, initial-scale=1";
                 title { (title) }
-                link rel="stylesheet" href=(css_href) id="theme-stylesheet";
+                link rel="stylesheet" href=(css_href);
                 script src="https://unpkg.com/idiomorph@0.3.0/dist/idiomorph.min.js" {}
             }
             body class="home" {
@@ -196,21 +121,6 @@ fn layout(title: &str, body: Markup, views: u64, theme: &str, theme_next: &str)
                 }
                 div id="errors" {}
                 (body)
-                div id="controls" {
-                    a href="https://github.com/sortersocial/sorter2" id="src-link" { "src" }
-                    form id="sorter-theme-form" method="post" action="/theme" data-navigate="full" {
-                        input type="hidden" name="next" value=(theme_next);
-                        select id="theme-select" name="theme" onchange="this.form.submit()" aria-label="Theme" {
-                            @for (val, label) in [("default", "default"), ("retro", "retro")] {
-                                @if theme == val {
-                                    option value=(val) selected { (label) }
-                                } @else {
-                                    option value=(val) { (label) }
-                                }
-                            }
-                        }
-                    }
-                }
                 script src=(js_src) {}
             }
         }
@@ -218,11 +128,7 @@ fn layout(title: &str, body: Markup, views: u64, theme: &str, theme_next: &str)
 }
 
 fn item_href(id: &ItemId) -> String {
-    if id.is_root() {
-        "/".to_string()
-    } else {
-        format!("/?item={}", id.as_str())
-    }
+    id.browse_href()
 }
 
 fn segment_label(seg: &str) -> &str {
@@ -361,39 +267,10 @@ pub fn vote_panel(parent: &ItemId) -> Markup {
 }
 
 
-fn query_param(uri: &Uri, key: &str) -> Option<String> {
-    let q = uri.query()?;
-    q.split('&').find_map(|pair| {
-        let mut it = pair.splitn(2, '=');
-        if it.next()? == key {
-            Some(it.next().unwrap_or("").to_string())
-        } else {
-            None
-        }
-    })
-}
-
-pub async fn home(
-    State(state): State<AppState>,
-    jar: CookieJar,
-    uri: Uri,
-) -> impl IntoResponse {
+async fn item_page(state: AppState, uri: Uri, item: ItemId) -> Markup {
     let path = uri.path().to_string();
     state.views.increment(path.clone());
     let views = state.views.get_views(&path);
-    let theme = theme_from_jar(&jar);
-    let theme_next = theme_next_from_uri(&uri);
-
-    let item_raw = query_param(&uri, "item")
-        .or_else(|| query_param(&uri, "sub").map(|sub| {
-            if sub.is_empty() {
-                String::new()
-            } else {
-                format!("reddit.com/r/{sub}")
-            }
-        }))
-        .unwrap_or_default();
-    let item = parse_item_param(&item_raw);
 
     let tree = state.tree.read().await;
     let empty_node = NodeState::default();
@@ -408,5 +285,14 @@ pub async fn home(
         (vote_panel(&item))
         (ranking_panel(&item, group))
     };
-    layout("sorter2", body, views, theme, &theme_next)
+    layout("sorter2", body, views)
+}
+
+pub async fn home(State(state): State<AppState>, uri: Uri) -> impl IntoResponse {
+    item_page(state, uri, ItemId::root()).await
+}
+
+pub async fn browse(State(state): State<AppState>, uri: Uri) -> impl IntoResponse {
+    let item = ItemId::from_browse_uri(uri.path()).unwrap_or(ItemId::root());
+    item_page(state, uri, item).await
 }
diff --git a/server/src/lib.rs b/server/src/lib.rs
index 14e7cfbc38feb5d07aff859b64bce6e2ec45cf91..cd56743192919cf4dcea539b3d8873a21fb7e72b 100644
--- a/server/src/lib.rs
+++ b/server/src/lib.rs
@@ -30,9 +30,9 @@ pub fn create_app(state: AppState) -> Router {
     Router::new()
         .route("/healthz", get(|| async { "ok" }))
         .route("/static/:filename", get(crate::html::serve_static))
+        .route("/~/*item_path", get(crate::html::browse))
         .route("/", get(crate::html::home))
         .route("/ui", post(crate::api::ui_html::post_ui_html))
-        .route("/theme", post(crate::html::post_theme))
         .with_state(state)
         .layer(TraceLayer::new_for_http())
 }
diff --git a/server/src/path_types.rs b/server/src/path_types.rs
index b5c41444f7bcd4d8d289ed3af464bc3f14d0df99..12dce9888f5cd4e1a0974d12d6468368d0f775b9 100644
--- a/server/src/path_types.rs
+++ b/server/src/path_types.rs
@@ -90,6 +90,50 @@ impl ItemId {
         paths
     }
 
+    /// Full URL for the browser location bar after `/~/`.
+    pub fn to_browse_url(&self) -> String {
+        if self.is_root() {
+            return String::new();
+        }
+        if self.as_str().contains("://") {
+            return self.as_str().to_string();
+        }
+        if self
+            .segments()
+            .first()
+            .is_some_and(|s| s.contains('.'))
+        {
+            format!("https://{}", self.as_str())
+        } else {
+            self.as_str().to_string()
+        }
+    }
+
+    /// App route, e.g. `/~/https://reddit.com/r/rust`.
+    pub fn browse_href(&self) -> String {
+        if self.is_root() {
+            "/".to_string()
+        } else {
+            format!("/~/{}", self.to_browse_url())
+        }
+    }
+
+    /// Parse the tail after `/~/` in a request path.
+    pub fn from_browse_tail(tail: &str) -> ItemId {
+        let raw = normalize_browse_tail(tail);
+        if raw.is_empty() {
+            return ItemId::root();
+        }
+        ItemId::from_url(&raw)
+            .or_else(|| ItemId::parse(&raw))
+            .unwrap_or_else(|| ItemId::opaque(raw))
+    }
+
+    pub fn from_browse_uri(path: &str) -> Option<ItemId> {
+        path.strip_prefix("/~/")
+            .map(ItemId::from_browse_tail)
+    }
+
     fn canonicalize(raw: &str) -> Option<String> {
         let s = raw.trim();
         if s.is_empty() {
@@ -155

… preview truncated; 6,669 characters omitted

download full diff A

B — c_6f04dcb2e38c (tommy-mor)

message

[bda5f8aa] Remove legacy evidence projection; Evidence envelopes only.

Epoch and commit pages no longer invent history from bare GitDiscovery rows. Production ledger will be wiped to re-emit under the current schema.

Co-authored-by: Cursor <cursoragent@cursor.com>

diff preview

diff --git a/constitution.py b/constitution.py
index 4dd5b9dfbba231d46289c490f91b1dd5b1018bcf..26ba130e885e0e69fb7874ca5c3f07f42100a150 100644
--- a/constitution.py
+++ b/constitution.py
@@ -210,10 +210,10 @@ class Emission:
     distributions: dict   # author -> amount str
     ranking: dict         # author -> score str
     models_used: list
-    discovery_snapshot_id: str = ""  # empty only for pre-discovery ledger history
-    evidence_schema_version: int = 1
-    ranking_run_id: str = ""
-    ranking_event_id: str = ""
+    discovery_snapshot_id: str
+    evidence_schema_version: int
+    ranking_run_id: str
+    ranking_event_id: str
 
 
 @event
@@ -502,26 +502,6 @@ def _epochs_in_ledger() -> list[int]:
     return sorted(epochs)
 
 
-def _legacy_commit_row(commit_id: str) -> tuple[GitDiscovery | None, dict | None]:
-    for discovery in store.read():
-        if not isinstance(discovery, GitDiscovery):
-            continue
-        for commit in discovery.commits:
-            if commit_id_for_oid(commit["oid"]) == commit_id:
-                return discovery, commit
-    return None, None
-
-
-def _legacy_observation(commit_id: str) -> tuple[GitDiscovery | None, dict | None]:
-    for discovery in store.read():
-        if not isinstance(discovery, GitDiscovery):
-            continue
-        for obs in discovery.observations:
-            if commit_id_for_oid(obs["oid"]) == commit_id:
-                return discovery, obs
-    return None, None
-
-
 def build_pairwise_prompt(side_a: dict, side_b: dict) -> str:
     return f"""You are ranking contributions to an open source project.
 Compare these two sides (each may be one or more commits). Decide which side contributed more.
@@ -2040,7 +2020,7 @@ def _strip_heavy_fields(obj: dict) -> dict:
 
 @app.get("/api/ledger")
 async def get_ledger(offset: int = 0, limit: int = 100, full: int = 0):
-    """List of ledger dicts (backward-compatible). Heavy blobs stripped unless full=1."""
+    """List of ledger dicts. Heavy blobs stripped unless full=1."""
     limit = max(1, min(limit, 500))
     rows = []
     for e in store.read()[offset:offset + limit]:
@@ -2274,23 +2254,25 @@ async def epochs_index():
     epochs = _epochs_in_ledger()
     rows = []
     for epoch in epochs:
-        discovery = _discovery_for_epoch(epoch)
         emission = _emission_for_epoch(epoch)
-        evidence_n = sum(
-            1 for e in evidence_by_kind() if e.epoch == epoch
+        evidence_n = sum(1 for e in evidence_by_kind() if e.epoch == epoch)
+        disc = next(
+            (
+                e for e in evidence_by_kind("git.discovery_completed")
+                if e.epoch == epoch
+            ),
+            None,
         )
         detail = []
-        if discovery:
+        if disc:
             detail.append(
-                f"{len(discovery.commits)} eligible / "
-                f"{len(discovery.observations)} observed"
+                f"{disc.payload.get('eligible_count', 0)} eligible / "
+                f"{disc.payload.get('observation_count', 0)} observed"
             )
         if emission:
             detail.append(f"emitted {emission.total_emitted}")
         if evidence_n:
             detail.append(f"{evidence_n} evidence events")
-        elif discovery or emission:
-            detail.append("legacy (no Evidence envelopes)")
         rows.append(["li",
             _a(_evidence_path("epoch", str(epoch)), f"epoch {epoch}"),
             " — ",
@@ -2307,37 +2289,37 @@ async def epochs_index():
 
 @app.get("/epochs/{epoch}")
 async def epoch_detail(epoch: int):
-    discovery = _discovery_for_epoch(epoch)
     emission = _emission_for_epoch(epoch)
     evidence_rows = [e for e in evidence_by_kind() if e.epoch == epoch]
+    if not evidence_rows and emission is None:
+        return _evidence_page(f"epoch {epoch}", [
+            _evidence_nav(),
+            ["h1", f"epoch {epoch}"],
+            ["p.note", "No evidence for this epoch."],
+        ])
+
     commit_evs = [e for e in evidence_rows if e.kind == "git.commit"]
     comparison_evs = [e for e in evidence_rows if e.kind == "comparison.input"]
     judgment_evs = [e for e in evidence_rows if e.kind == "llm.judgment"]
+    discovery_ev = next(
+        (e for e in evidence_rows if e.kind == "git.discovery_completed"), None
+    )
     ranking_started = next(
         (e for e in evidence_rows if e.kind == "ranking.started"), None
     )
     ranking_completed = next(
         (e for e in evidence_rows if e.kind == "ranking.completed"), None
     )
-    legacy = not evidence_rows and (discovery is not None or emission is not None)
-
-    commit_links: list[tuple[str, str]] = []
-    if commit_evs:
-        for e in commit_evs:
-            cid = e.payload.get("commit_id") or ""
-            label = (
-                f"{e.payload.get('oid', cid)[:24]} "
-                f"({e.payload.get('contributor', '?')})"
-            )
-            commit_links.append((label, _evidence_path("commit", cid)))
-    elif discovery:
-        for c in discovery.commits:
-            cid = commit_id_for_oid(c["oid"])
-            commit_links.append((
-                f"{c['oid'][:24]} ({c.get('contributor', '?')})",
-                _evidence_path("commit", cid),
-            ))
 
+    commit_links = [
+        (
+            f"{e.payload.get('oid', e.payload.get('commit_id', ''))[:24]} "
+            f"({e.payload.get('contributor', '?')})",
+            _evidence_path("commit", e.payload["commit_id"]),
+        )
+        for e in commit_evs
+        if e.payload.get("commit_id")
+    ]
     comparison_links = [
         (
             e.payload.get("summary") or e.payload.get("comparison_id", e.event_id),
@@ -2360,16 +2342,13 @@ async def epoch_detail(epoch: int):
     ]
 
     excluded = []
-    if discovery:
-        for obs in discovery.observations:
+    if discovery_ev:
+        for obs in discovery_ev.payload.get("observations") or []:
             if obs.get("eligible"):
                 continue
             oid = obs.get("oid", "?")
             reason = obs.get("exclusion_reason") or "excluded"
-            excluded.append(["li",
-                f"{oid[:28]} — {reason} — ",
-                ["span.note", "legacy evidence unavailable"],
-            ])
+            excluded.append(["li", f"{oid[:28]} — {reason}"])
 
     ranking_nodes: list = []
     if ranking_completed:
@@ -2388,21 +2367,10 @@ async def epoch_detail(epoch: int):
                 indent=2, sort_keys=True,
             )],
         ]
-    elif emission:
-        if legacy and len(emission.ranking or {}) <= 1:
-            ranking_nodes.append(["p.note",
-                "Single-contributor epoch — no LLM judgments."
-            ])
-        ranking_nodes.extend([
-            ["p", "Projected from Emission (no ranking Evidence event)."],
-            ["pre.blob", json.dumps(emission.ranking, indent=2, sort_keys=True)],
-        ])
+    elif ranking_started:
+        ranking_nodes = [["p.note", f"Ranking started: {ranking_started.event_id}"]]
     else:
-        ranking_nodes = [["p.note", "No ranking recorded."]]
-    if ranking_started and not ranking_completed:
-        ranking_nodes.insert(0, ["p.note",
-            f"Ranking started: {ranking_started.event_id}"
-        ])
+        ranking_nodes = [["p.note", "No ranking evidence."]]
 
     if emission:
         emission_node = _dl_rows([
@@ -2411,44 +2379,41 @@ async def epoch_detail(epoch: int):
             ("pool_after", emission.pool_after),
             ("discovery_snapshot_id", emission.discovery_snapshot_id),
             ("ranking_run_id", emission.ranking_run_id or None),
+            ("ranking_event_id", emission.ranking_event_id or None),
             ("models_used", ", ".join(emission.models_used or [])),
             ("distributions", json.dumps(emission.distributions, sort_keys=True)),
         ])
     else:
         emission_node = ["p.note", "No emission for this epoch."]
 
-    single_contributor = False
-    if discovery:
-        single_contributor = len({c.get("contributor") for c in discovery.commits}) <= 1
-    elif emission:
-        single_contributor = len(emission.ranking or {}) <= 1
+    contributors = {
+        e.payload.get("contributor")
+        for e in commit_evs
+        if e.payload.get("contributor")
+    }
+    no_comparisons_note = "No comparisons."
+    if len(contributors) <= 1:
+        no_comparisons_note += " Single-contributor — no LLM judgments."
 
     body = [
         _evidence_nav(),
         ["div.eyebrow", f"epoch {epoch}"],
         ["h1", f"epoch {epoch}"],
     ]
-    if legacy:
-        body.append(["p.note",
-            "Legacy epoch: projected from GitDiscovery/Emission without Evidence "
-            "envelopes. Eligible commits use discovery patches; discarded observation "
-            "metadata is marked legacy evidence unavailable. Single-contributor "
-            "epochs have no LLM judgments."
-        ])
-    if discovery:
+    if discovery_ev:
         body.extend([
             ["h2", "discovery"],
             _dl_rows([
-                ("snapshot_id", discovery.snapshot_id),
-                ("config_digest", discovery.config_digest),
-                ("initial_snapshot", discovery.initial_snapshot),
-                ("observations", len(discovery.observations)),
-                ("eligible", len(discovery.commits)),
+                ("snapshot_id", discovery_ev.payload.get("snapshot_id")),
+                ("config_digest", discovery_ev.payload.get("config_digest")),
+                ("observations", discovery_ev.payload.get("observation_count")),
+                ("eligible", discovery_ev.payload.get("eligible_count")),
+                ("event", _a(
+                    _evidence_path("event", discovery_ev.event_id),
+                    discovery_ev.event_id,
+                )),
             ]),
         ])
-    no_comparisons_note = "No comparisons."
-    if single_contributor:
-        no_comparisons_note += " Single-contributor — no LLM judgments."
     body.extend([
         ["h2", "commits"],
         _link_list(commit_links),
@@ -2471,92 +2436,42 @@ async def epoch_detail(epoch: int):
 @app.get("/commits/{commit_id}")
 async def commit_detail(commit_id: str):
     ev = find_evidence_payload("git.commit", "commit_id", commit_id)
-    discovery, legacy_row = (None, None)
     if not ev:
-        discovery, legacy_row = _legacy_commit_row(commit_id)
-    if not ev and not legacy_row:
-        discovery, obs = _legacy_observation(commit_id)
-        if obs is not None:
-            epoch = discovery.epoch if discovery else "?"
-            return _evidence_page(f"commit {commit_id[:24]}", [
-                _evidence_nav(
-                    _a(_evidence_path("epoch", str(epoch)), f"epoch {epoch}")
-                ),
-                ["div.eyebrow", "commit"],
-                ["h1", commit_id],
-                ["p.note", "legacy evidence unavailable"],
-                _dl_rows([
-                    ("oid", obs.get("oid")),
-                    ("eligible", obs.get("eligible")),
-                    ("exclusion_reason", obs.get("exclusion_reason")),
-                    ("epoch", str(epoch)),
-                ]),
-            ])
         return _evidence_page("commit not found", [
             _evidence_nav(),
             ["h1", "commit not found"],
             ["p", commit_id],
         ])
-    if ev:
-        p = ev.payload
-        epoch = ev.epoch
-        oid = p.get("oid", "")
-        contributor = p.get("contributor", "")
-        message = _blob_text(p.get("message"))
-        patch = _blob_text(p.get("patch"))
-        meta = _dl_rows([
+    p = ev.payload
+    epoch = ev.epoch
+    return _evidence_page(f"commit {commit_id[:24]}", [
+        _evidence_nav(_a(_evidence_path("epoch", str(epoch)), f"epoch {epoch}")),
+        ["div.eyebrow", "commit"],
+        ["h1", commit_id],
+        _dl_rows([
             ("commit_id", commit

… preview truncated; 7,279 characters omitted

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