diff --git a/client/CLAUDE.md b/client/CLAUDE.md
index 91ea70f18..c055d0689 100644
--- a/client/CLAUDE.md
+++ b/client/CLAUDE.md
@@ -12,7 +12,7 @@ npm run lint              # eslint .   (lint:check in CI)
 npm run lint:warnings     # eslint, failing on any error and on any warning count per rule above scripts/eslint-baseline.json (app code, tests and eslint-disable'd messages counted apart; --update lowers it)
 npm run lint:pages        # enforce the Page pattern (CI gate)
 npm run lint:rtl          # physical left/right sides and rtl-lint-disable comments may only shrink per file (CI gate; --list shows them, --update lowers both baselines)
-npm run lint:size         # no source file or stylesheet past 1000 lines, no test past 2000, counted wrapped at 120 columns; longer ones may only shrink (CI gate; --update lowers the baseline)
+npm run lint:size         # no source file or stylesheet past 1000 lines, no test (Playwright specs and fixtures under e2e/ included) past 2000, counted wrapped at 120 columns; longer ones may only shrink (CI gate; --update lowers the baseline)
 npm run lint:format       # Prettier: every .ts/.tsx/.mjs/.css file under src/, tests/, e2e/ and scripts/ outside scripts/format-baseline.json must be formatted, the list only shrinks (CI gate; npx prettier --write <file>, then --update)
 npm run lint:layers       # imports go downwards: components never import pages/ or mobile/, nothing under the views imports a view; per-file counts may only shrink (CI gate; --list, --update)
 npm run lint:offline      # no view file (components/mobile/pages/hooks) imports src/api/ beyond scripts/offline-baseline.json, which only shrinks (CI gate; --list, --update)
diff --git a/client/scripts/lib/size.mjs b/client/scripts/lib/size.mjs
index cbd878195..af76b097a 100644
--- a/client/scripts/lib/size.mjs
+++ b/client/scripts/lib/size.mjs
@@ -24,13 +24,15 @@ export const WIDTH = 120;
 /**
  * The kinds of file the check covers, each with the size a file without a
  * baseline entry may reach. Tests get more room: a spec mirrors the component
- * it covers and holds fixtures, but past LIMIT it is a god file too.
+ * it covers and holds fixtures, but past LIMIT it is a god file too. The
+ * Playwright specs and their fixtures under e2e/ count as tests.
  */
 export const GROUPS = [
   {
     name: 'test',
     limit: 2000,
-    accepts: (key) => /\.tsx?$/.test(key) && (key.startsWith('tests/') || TEST_FILE.test(key)),
+    accepts: (key) =>
+      /\.tsx?$/.test(key) && (key.startsWith('tests/') || key.startsWith('e2e/') || TEST_FILE.test(key)),
   },
   {
     name: 'source',
@@ -40,7 +42,7 @@ export const GROUPS = [
   { name: 'stylesheet', limit: 1000, accepts: (key) => key.startsWith('src/') && key.endsWith('.css') },
 ];
 
-export const DIRS = ['src', 'tests'];
+export const DIRS = ['src', 'tests', 'e2e'];
 
 export function groupOf(key) {
   return GROUPS.find((group) => group.accepts(key)) ?? null;
diff --git a/client/scripts/size-baseline.json b/client/scripts/size-baseline.json
index 39a9323ab..88d00cfe6 100644
--- a/client/scripts/size-baseline.json
+++ b/client/scripts/size-baseline.json
@@ -1,4 +1,5 @@
 {
+  "e2e/help/fixtures.ts": 2291,
   "src/api/client.ts": 1916,
   "src/components/Admin/AdminPluginsPanel.test.tsx": 2704,
   "src/components/Admin/AdminPluginsPanel.tsx": 2431,
diff --git a/client/scripts/size-lint.mjs b/client/scripts/size-lint.mjs
index 6656299e9..48ddf624e 100644
--- a/client/scripts/size-lint.mjs
+++ b/client/scripts/size-lint.mjs
@@ -4,8 +4,8 @@
  *
  * A file past a thousand lines holds several concerns that no longer fit in
  * one reading, and every change to one of them risks the others. Each source
- * file and stylesheet under src/ may hold 1000 lines, each test (under tests/
- * or a co-located *.test.*) 2000. Lines are counted as an editor wraps them
+ * file and stylesheet under src/ may hold 1000 lines, each test (under tests/,
+ * a Playwright spec or fixture under e2e/, or a co-located *.test.*) 2000. Lines are counted as an editor wraps them
  * at 120 columns, so joining lines does not make a file smaller. The files
  * that were already larger are listed in scripts/size-baseline.json with the
  * size they had, and the check fails when one of them grows past its entry. A
diff --git a/client/tests/unit/scripts/size-lint.test.ts b/client/tests/unit/scripts/size-lint.test.ts
index cab635499..b0065374e 100644
--- a/client/tests/unit/scripts/size-lint.test.ts
+++ b/client/tests/unit/scripts/size-lint.test.ts
@@ -10,7 +10,12 @@ afterEach(() => tree?.remove());
 const BASELINE = 'scripts/size-baseline.json';
 
 function run(baseline: Record<string, number>, files: Record<string, string>, update = false) {
-  tree = ratchetTree({ [BASELINE]: JSON.stringify(baseline), 'tests/keep.test.ts': lines(1), ...files });
+  tree = ratchetTree({
+    [BASELINE]: JSON.stringify(baseline),
+    'tests/keep.test.ts': lines(1),
+    'e2e/keep.spec.ts': lines(1),
+    ...files,
+  });
   return check({ root: tree.root, baselinePath: tree.path(BASELINE), update, ...tree.out });
 }
 
@@ -31,6 +36,8 @@ describe('lint:size', () => {
     expect(groupOf('src/index.css')).toMatchObject({ name: 'stylesheet', limit: 1000 });
     expect(groupOf('src/a/B.test.tsx')).toMatchObject({ name: 'test', limit: 2000 });
     expect(groupOf('tests/unit/x.ts')).toMatchObject({ name: 'test', limit: 2000 });
+    expect(groupOf('e2e/help/fixtures.ts')).toMatchObject({ name: 'test', limit: 2000 });
+    expect(groupOf('e2e/server-launch.mjs')).toBeNull();
     expect(groupOf('src/a/notes.md')).toBeNull();
   });
 
@@ -56,6 +63,13 @@ describe('lint:size', () => {
     expect(tree.error.join('\n')).toMatch(/src\/A\.test\.tsx: 2001 lines .*test file is 2000/);
   });
 
+  it('SIZE-010: covers the Playwright specs and fixtures under e2e/', () => {
+    const files = { 'src/a.ts': lines(1), 'e2e/help/fixtures.ts': lines(2001), 'e2e/a.spec.ts': lines(2000) };
+    expect(run({}, files)).toBe(1);
+    expect(tree.error.join('\n')).toMatch(/e2e\/help\/fixtures\.ts: 2001 lines .*test file is 2000/);
+    expect(tree.error.join('\n')).not.toMatch(/e2e\/a\.spec\.ts/);
+  });
+
   it('SIZE-007: holds a baselined file at its entry and fails it once it grows', () => {
     expect(run({ 'src/big.ts': 1200 }, { 'src/big.ts': lines(1200) })).toBe(0);
     tree.remove();
@@ -81,7 +95,7 @@ describe('lint:size', () => {
   });
 
   it('SIZE-009: a broken baseline stops the check', () => {
-    tree = ratchetTree({ [BASELINE]: '{', 'src/a.ts': lines(1), 'tests/a.ts': lines(1) });
+    tree = ratchetTree({ [BASELINE]: '{', 'src/a.ts': lines(1), 'tests/a.ts': lines(1), 'e2e/a.ts': lines(1) });
     expect(() => check({ root: tree.root, baselinePath: tree.path(BASELINE), ...tree.out })).toThrow(RatchetError);
   });
 });