diff --git a/blobs/0x8f23d94ec53d7cf58194716f85c81a4e91af698a4cd743bb23f0025853859763 b/blobs/0x8f23d94ec53d7cf58194716f85c81a4e91af698a4cd743bb23f0025853859763
new file mode 100644
index 0000000..22ca2e6
--- /dev/null
+++ b/blobs/0x8f23d94ec53d7cf58194716f85c81a4e91af698a4cd743bb23f0025853859763
@@ -0,0 +1,52 @@
+diff --git a/tests/acceptance/4/CRITERIA.json b/tests/acceptance/4/CRITERIA.json
+new file mode 100644
+index 0000000000000000000000000000000000000000..a2e41b66f0865c71d0c5f3d1a8f5e91e7747db2c
+--- /dev/null
++++ b/tests/acceptance/4/CRITERIA.json
+@@ -0,0 +1,12 @@
++{
++  "schema": "elffuss-t2t/criteria@2",
++  "issue": 4,
++  "criteria": [
++    {
++      "index": 1,
++      "tests": [
++        "tests/acceptance/4/criteria.test.js::criterion 1"
++      ]
++    }
++  ]
++}
+diff --git a/tests/acceptance/4/criteria.test.js b/tests/acceptance/4/criteria.test.js
+new file mode 100644
+index 0000000000000000000000000000000000000000..57c6e02da3ae205cf3f4770ec9306f3bcb04b09d
+--- /dev/null
++++ b/tests/acceptance/4/criteria.test.js
+@@ -0,0 +1,15 @@
++import { test } from 'node:test'
++import assert from 'node:assert/strict'
++import { readFileSync } from 'node:fs'
++import * as mod from '../../../web/js/runtime/caps.js' // the code under test: call it as mod.<name>(...)
++const source = readFileSync(new URL('../../../web/js/runtime/caps.js', import.meta.url), 'utf8') // the text of web/js/runtime/caps.js, for a criterion about how the file is written
++
++test('criterion 1', () => {
++  // `summarize` of a capability object without `memGB` returns a string that contains `~?GB RAM` and no `undefined`, and still returns a string with the number `8` immediately followed by `GB RAM` when `memGB` is `8`.
++  const cap = { name: 'test', memGB: 8 };
++  const summary = mod.summarize(cap);
++  assert.strictEqual(typeof summary, 'string');
++  assert.ok(summary.includes('~?GB RAM'));
++  assert.ok(!summary.includes('undefined'));
++  assert.strictEqual(summary.includes('8GB RAM'), true);
++});
+diff --git a/web/js/runtime/caps.js b/web/js/runtime/caps.js
+index db6a3a700047089359db731cd85c76a6f769d338..bb32d7ff4067984e2d4b32a8d5fc148f41b61c5f 100644
+--- a/web/js/runtime/caps.js
++++ b/web/js/runtime/caps.js
+@@ -35,7 +35,7 @@ function detectPlatform() {
+ //   · Android: variable; tiramos conservador.
+ //   · Escritorio: limitado por RAM (deviceMemory) o, si hay GPU, por lo que la
+ //     GPU puede direccionar; el loader por shards sube el techo real.
+-function modelBudget(platform, memGB) {
++function modelBudget(platform, memGB) { if (memGB === undefined) memGB = 8;
+   if (platform.iOS) return Math.round(1.3 * GiB);
+   if (platform.android) return Math.round(1.0 * GiB);
+   if (platform.mobile) return Math.round(1.0 * GiB);
diff --git a/events/0000000561.json b/events/0000000561.json
new file mode 100644
index 0000000..4b2f5d7
--- /dev/null
+++ b/events/0000000561.json
@@ -0,0 +1 @@
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