diff --git a/.gitea/workflows/deploy.yaml b/.gitea/workflows/deploy.yaml
index 58e7ac0..9a96a52 100644
--- a/.gitea/workflows/deploy.yaml
+++ b/.gitea/workflows/deploy.yaml
@@ -91,6 +91,11 @@ jobs:
           # already on PATH from `npm i -g pnpm` (gitea-runners.md §4).
           cd web
           pnpm install --frozen-lockfile
+          # The web half's counterpart to `cargo fmt --check` above. It skips
+          # src/api/generated (.prettierignore) — ts-rs owns those files and
+          # regenerates them in its own style, so formatting them here would be
+          # undone on the next `cargo test` and fail the drift gate above.
+          pnpm format:check
           pnpm lint
           pnpm build
 
diff --git a/web/.prettierignore b/web/.prettierignore
new file mode 100644
index 0000000..b462b3f
--- /dev/null
+++ b/web/.prettierignore
@@ -0,0 +1,7 @@
+# Written by ts-rs from the Rust entities crate when `cargo test -p
+# blackbeard-entities` runs, and checked for drift in CI. Formatting them here
+# would be undone by the next regeneration, and the "generated types are
+# current" gate would then fail on every build.
+src/api/generated/
+
+dist/
diff --git a/web/package.json b/web/package.json
index 225f9ef..eb0cd8c 100644
--- a/web/package.json
+++ b/web/package.json
@@ -10,6 +10,7 @@
     "preview": "vite preview",
     "lint": "eslint .",
     "format": "prettier --write src",
+    "format:check": "prettier --check src",
     "typecheck": "tsc -b --noEmit"
   },
   "dependencies": {
diff --git a/web/src/App.tsx b/web/src/App.tsx
index a3d7e89..c5343fc 100644
--- a/web/src/App.tsx
+++ b/web/src/App.tsx
@@ -56,7 +56,10 @@ export default function App() {
   // Default to the busiest chain we can actually track — the list is ordered
   // by node count, and an untracked chain has nothing behind it.
   const chain = route.chain ?? state.chains.find((c) => c.tracking === 'full')?.id ?? null
-  const info = useMemo(() => state.chains.find((c) => c.id === chain) ?? null, [state.chains, chain])
+  const info = useMemo(
+    () => state.chains.find((c) => c.id === chain) ?? null,
+    [state.chains, chain],
+  )
 
   useWatch(chain, route.window)
 
@@ -67,16 +70,14 @@ export default function App() {
       : `/${merged.chain ?? ''}/${merged.window}`
   }, [])
 
-  const selectMiner = useCallback(
-    (miner: string) => {
-      // Keep the chain and window; the miner panel opens above the board rather
-      // than replacing the page, so the standings stay visible behind it.
-      setRoute((r) => ({ ...r, miner }))
-    },
-    [],
-  )
+  const selectMiner = useCallback((miner: string) => {
+    // Keep the chain and window; the miner panel opens above the board rather
+    // than replacing the page, so the standings stay visible behind it.
+    setRoute((r) => ({ ...r, miner }))
+  }, [])
 
-  const interval = state.summary?.block_interval_seconds ?? state.summary?.target_block_time_seconds ?? 6
+  const interval =
+    state.summary?.block_interval_seconds ?? state.summary?.target_block_time_seconds ?? 6
   const activeWindow = WINDOWS.find((w) => w.id === route.window) ?? WINDOWS[1]!
 
   return (
@@ -199,7 +200,10 @@ function Sigil() {
         stroke="var(--data)"
         strokeWidth="1.6"
       />
-      <path d="M17 8 L24 12 V21 C24 26 20.5 29.5 17 31.5 C13.5 29.5 10 26 10 21 V12 Z" fill="var(--data-wash)" />
+      <path
+        d="M17 8 L24 12 V21 C24 26 20.5 29.5 17 31.5 C13.5 29.5 10 26 10 21 V12 Z"
+        fill="var(--data-wash)"
+      />
       <path d="M17 11 V28" stroke="var(--accent)" strokeWidth="1.6" />
       <path d="M13 15 L17 11 L21 15" fill="none" stroke="var(--accent)" strokeWidth="1.6" />
     </svg>
diff --git a/web/src/components/BlockTicker.tsx b/web/src/components/BlockTicker.tsx
index 953b601..4bac369 100644
--- a/web/src/components/BlockTicker.tsx
+++ b/web/src/components/BlockTicker.tsx
@@ -50,11 +50,7 @@ export function BlockTicker({
         return (
           <div
             key={block.height}
-            className={[
-              'ticker-row',
-              mine ? 'mine' : '',
-              fresh.has(block.height) ? 'fresh' : '',
-            ]
+            className={['ticker-row', mine ? 'mine' : '', fresh.has(block.height) ? 'fresh' : '']
               .filter(Boolean)
               .join(' ')}
           >
@@ -77,7 +73,9 @@ export function BlockTicker({
               {block.display}
             </a>
             <span className="ticker-gap">
-              {block.gap_seconds !== null ? `+${seconds(block.gap_seconds)}` : ago(block.observed_at)}
+              {block.gap_seconds !== null
+                ? `+${seconds(block.gap_seconds)}`
+                : ago(block.observed_at)}
             </span>
           </div>
         )
diff --git a/web/src/components/ChainSwitcher.tsx b/web/src/components/ChainSwitcher.tsx
index dffa255..290ada3 100644
--- a/web/src/components/ChainSwitcher.tsx
+++ b/web/src/components/ChainSwitcher.tsx
@@ -52,11 +52,7 @@ export function ChainSwitcher({
             <button
               key={chain.genesis ?? chain.id}
               type="button"
-              className={[
-                'chain-chip',
-                isActive ? 'is-active' : '',
-                tracked ? '' : 'is-untracked',
-              ]
+              className={['chain-chip', isActive ? 'is-active' : '', tracked ? '' : 'is-untracked']
                 .filter(Boolean)
                 .join(' ')}
               aria-current={isActive ? 'page' : undefined}
diff --git a/web/src/components/MinerPanel.tsx b/web/src/components/MinerPanel.tsx
index b190c6a..6d492f2 100644
--- a/web/src/components/MinerPanel.tsx
+++ b/web/src/components/MinerPanel.tsx
@@ -60,7 +60,12 @@ export function MinerPanel({
           </h2>
           <div
             className="numeral"
-            style={{ fontSize: 11, color: 'var(--text-muted)', marginTop: 4, overflowWrap: 'anywhere' }}
+            style={{
+              fontSize: 11,
+              color: 'var(--text-muted)',
+              marginTop: 4,
+              overflowWrap: 'anywhere',
+            }}
           >
             {miner}
           </div>
@@ -68,7 +73,15 @@ export function MinerPanel({
         <div style={{ display: 'flex', gap: 10, alignItems: 'center' }}>
           <button
             className="segmented"
-            style={{ padding: '7px 13px', font: 'inherit', fontSize: 12, letterSpacing: '0.1em', textTransform: 'uppercase', color: mine ? 'var(--accent-bright)' : 'var(--text-secondary)', cursor: 'pointer' }}
+            style={{
+              padding: '7px 13px',
+              font: 'inherit',
+              fontSize: 12,
+              letterSpacing: '0.1em',
+              textTransform: 'uppercase',
+              color: mine ? 'var(--accent-bright)' : 'var(--text-secondary)',
+              cursor: 'pointer',
+            }}
             aria-pressed={mine}
             onClick={() => toggle(miner)}
           >
@@ -76,7 +89,15 @@ export function MinerPanel({
           </button>
           <button
             className="segmented"
-            style={{ padding: '7px 13px', font: 'inherit', fontSize: 12, letterSpacing: '0.1em', textTransform: 'uppercase', color: 'var(--text-secondary)', cursor: 'pointer' }}
+            style={{
+              padding: '7px 13px',
+              font: 'inherit',
+              fontSize: 12,
+              letterSpacing: '0.1em',
+              textTransform: 'uppercase',
+              color: 'var(--text-secondary)',
+              cursor: 'pointer',
+            }}
             onClick={onClose}
           >
             Close
@@ -121,7 +142,9 @@ export function MinerPanel({
             </div>
             <div className="stat">
               <div className="stat-label">Best streak</div>
-              <div className="stat-value">{row && row.best_streak > 1 ? `×${row.best_streak}` : '—'}</div>
+              <div className="stat-value">
+                {row && row.best_streak > 1 ? `×${row.best_streak}` : '—'}
+              </div>
               <div className="stat-note">consecutive blocks</div>
             </div>
           </div>
diff --git a/web/src/components/ShareChart.tsx b/web/src/components/ShareChart.tsx
index 31b9b27..23b7e84 100644
--- a/web/src/components/ShareChart.tsx
+++ b/web/src/components/ShareChart.tsx
@@ -160,7 +160,13 @@ export function ShareChart({ points }: { points: MinerSeriesPoint[] }) {
 
         {hover && (
           <>
-            <line className="crosshair" x1={hover.x} x2={hover.x} y1={PAD.top} y2={chart.baseline} />
+            <line
+              className="crosshair"
+              x1={hover.x}
+              x2={hover.x}
+              y1={PAD.top}
+              y2={chart.baseline}
+            />
             {/* 2px surface ring so the marker stays legible where it sits on the
                 line; the ring is part of the hit target, not just spacing. */}
             <circle className="marker" cx={hover.x} cy={hover.y} r={4.5} />
@@ -196,7 +202,9 @@ export function ShareChart({ points }: { points: MinerSeriesPoint[] }) {
             transform: hover.x > width / 2 ? 'translate(-100%, 0)' : 'translate(10px, 0)',
           }}
         >
-          <div className="tooltip-label">{timeLabel(new Date(hover.point.at).getTime(), chart.span)}</div>
+          <div className="tooltip-label">
+            {timeLabel(new Date(hover.point.at).getTime(), chart.span)}
+          </div>
           <div>
             <strong>{share(hover.point.share)}</strong> of blocks
           </div>
diff --git a/web/src/components/StatBar.tsx b/web/src/components/StatBar.tsx
index d87f97f..1719e5b 100644
--- a/web/src/components/StatBar.tsx
+++ b/web/src/components/StatBar.tsx
@@ -102,9 +102,7 @@ function TrendStat({
       {...(hero ? { hero } : {})}
       {...(reading ? { noteClass: 'reading' } : noteClass ? { noteClass } : {})}
       {...(title ? { title } : {})}
-      {...(points
-        ? { trend: <Sparkline points={points} label={label} onProbe={onProbe} /> }
-        : {})}
+      {...(points ? { trend: <Sparkline points={points} label={label} onProbe={onProbe} /> } : {})}
     />
   )
 }