diff --git a/.github/workflows/javascript-build.yml b/.github/workflows/javascript-build.yml
index 227f80c9..88753f32 100644
--- a/.github/workflows/javascript-build.yml
+++ b/.github/workflows/javascript-build.yml
@@ -108,13 +108,7 @@ jobs:
                   export NODE_OPTIONS="--max-old-space-size=4096"
                   yarn workspace @cratis/components run ci
 
-            # Every intentionally public declaration/member reachable from a JS `exports`
-            # subpath must carry a TSDoc comment (Cratis/Components#173). Runs against
-            # source, so it needs no build step; its own self-tests run first and fail
-            # the job if the reachability/doc-presence walk itself regresses.
-            - name: Verify public API TSDoc coverage
-              working-directory: Source
-              run: node scripts/verify-api-docs.mjs
+            # Source's ci script also checks public API TSDoc and the packed CSS budgets.
 
     # Matrix over the renderer-adapter workspaces that today run one after another inside
     # `run-task-on-workspaces.js ci`: Conformance, MUI, PrimeReact 11, PrimeReact 10. In that
diff --git a/README.md b/README.md
index 461f77cc..4952b10e 100644
--- a/README.md
+++ b/README.md
@@ -172,6 +172,13 @@ This is a framework-library repository. [Component source](https://github.com/Cr
 keeps public types, stories, and specifications near each component; export and
 package verification lives under `Source/scripts/`.
 
+Before pushing Source changes, run `cd Source && yarn ci` after `yarn install` at the
+repository root. It includes public API TSDoc coverage and packs the built package to check
+aggregate and per-area CSS budgets (`yarn verify-packed-css` runs that check alone after a
+build). CI additionally checks packed exports, public types under TypeScript 6 and 7,
+production tree shaking, and external consumer/package-manager matrices; `yarn ci` does not
+replace those jobs.
+
 For root and package README changes, verify the exact files explicitly:
 
 ```bash
diff --git a/Source/package.json b/Source/package.json
index da93133b..5e25889e 100644
--- a/Source/package.json
+++ b/Source/package.json
@@ -259,6 +259,7 @@
         "copy-css": "./scripts/copy-css.sh",
         "verify-exports": "node ./scripts/verify-exports.mjs",
         "verify-package-archive": "node ./scripts/verify-package-archive.mjs",
+        "verify-packed-css": "node ./scripts/verify-packed-css.mjs",
         "verify-packed-production": "node ./scripts/verify-packed-production.mjs",
         "verify-api-docs": "node ./scripts/verify-api-docs.mjs",
         "verify-public-types": "node ./scripts/verify-public-types.mjs",
@@ -276,7 +277,7 @@
         "lint": "yarn g:lint",
         "lint:ci": "yarn g:lint:ci",
         "test": "yarn g:test",
-        "ci": "yarn generate-parts && yarn verify-parts-manifest && yarn g:ci && yarn typecheck-stories && yarn g:build && yarn verify-renderer-contracts && yarn verify-package-graph-report",
+        "ci": "yarn generate-parts && yarn verify-parts-manifest && yarn verify-api-docs && yarn g:ci && yarn typecheck-stories && yarn g:build && yarn verify-renderer-contracts && yarn verify-package-graph-report && yarn verify-packed-css",
         "up": "yarn g:up",
         "dev": "yarn workspace @cratis/components.storybook dev",
         "build-storybook": "yarn workspace @cratis/components.storybook build"
diff --git a/Source/scripts/verify-packed-css.mjs b/Source/scripts/verify-packed-css.mjs
new file mode 100644
index 00000000..9334c0ca
--- /dev/null
+++ b/Source/scripts/verify-packed-css.mjs
@@ -0,0 +1,35 @@
+// Copyright (c) Cratis. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+// Run the same archive check as CI against the built publish artifact, without leaving a tarball.
+import { spawnSync } from 'node:child_process';
+import { mkdtempSync, rmSync } from 'node:fs';
+import { tmpdir } from 'node:os';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const packageDir = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..');
+const temporary = mkdtempSync(path.join(tmpdir(), 'cratis-components-packed-css-'));
+const archive = path.join(temporary, 'components.tgz');
+
+try {
+    const packed = spawnSync('yarn', ['pack', '--out', archive], {
+        cwd: packageDir,
+        encoding: 'utf8',
+        timeout: 180_000,
+    });
+    if (packed.error) throw packed.error;
+    if (packed.status !== 0) {
+        throw new Error(`\`yarn pack\` failed:\n${packed.stderr || packed.stdout}`);
+    }
+
+    const verified = spawnSync('yarn', ['verify-package-archive', archive], {
+        cwd: packageDir,
+        stdio: 'inherit',
+        timeout: 180_000,
+    });
+    if (verified.error) throw verified.error;
+    if (verified.status !== 0) process.exitCode = verified.status ?? 1;
+} finally {
+    rmSync(temporary, { recursive: true, force: true });
+}