diff --git a/admin/views/page-catalog.php b/admin/views/page-catalog.php
index 51fc99f..366e5ed 100644
--- a/admin/views/page-catalog.php
+++ b/admin/views/page-catalog.php
@@ -112,6 +112,8 @@ $compat_warnings   = 0;
 					$raw_cost = $entry['price_annual'] ?? 0;
 					$raw_ver  = $entry['current_version'] ?? '';
 					$raw_url  = $entry['page_url'] ?? '';
+					$raw_home = $entry['homepage'] ?? '';
+					$raw_desc = $entry['description'] ?? '';
 					$raw_rwp  = $entry['requires_wp'] ?? '';
 					$raw_rphp = $entry['requires_php'] ?? '';
 
@@ -121,9 +123,15 @@ $compat_warnings   = 0;
 					$cost     = is_numeric( $raw_cost ) ? (float) ( $raw_cost + 0.0 ) : 0.0;
 					$remote_v = is_string( $raw_ver ) ? $raw_ver : '';
 					$page_url = is_string( $raw_url ) ? $raw_url : '';
+					$homepage = is_string( $raw_home ) ? $raw_home : '';
+					$desc     = is_string( $raw_desc ) ? trim( $raw_desc ) : '';
 					$req_wp   = is_string( $raw_rwp ) ? $raw_rwp : '';
 					$req_php  = is_string( $raw_rphp ) ? $raw_rphp : '';
 
+					$website_url = '' !== $page_url ? $page_url : $homepage;
+					$expandable  = ( '' !== $desc || '' !== $website_url );
+					$toggle_id   = 'robotstxt-manager-toggle-' . esc_attr( $slug );
+
 					// Compatibility checks.
 					$wp_ok  = '' === $req_wp || version_compare( $local_wp_version, $req_wp, '>=' );
 					$php_ok = '' === $req_php || version_compare( $local_php_version, $req_php, '>=' );
@@ -148,7 +156,11 @@ $compat_warnings   = 0;
 					$row_class = ( ! $wp_ok || ! $php_ok ) ? ' robotstxt-manager-row--incompatible' : '';
 					?>
 					<tr class="<?php echo esc_attr( ltrim( $row_class ) ); ?>">
-						<td>
+						<td class="robotstxt-manager-name-cell">
+							<?php if ( $expandable ) : ?>
+								<input type="checkbox" class="robotstxt-manager-toggle" id="<?php echo esc_attr( $toggle_id ); ?>" aria-label="<?php esc_attr_e( 'Show more information', 'robotstxt-manager' ); ?>" />
+								<label class="robotstxt-manager-toggle-label" for="<?php echo esc_attr( $toggle_id ); ?>"><span class="robotstxt-manager-toggle-arrow"></span></label>
+							<?php endif; ?>
 							<strong><?php echo esc_html( $name ); ?></strong>
 							<?php if ( '' !== $remote_v ) : ?>
 								<br /><span class="description"><?php echo esc_html( sprintf( 'v%s', $remote_v ) ); ?></span>
@@ -228,6 +240,18 @@ $compat_warnings   = 0;
 						<?php endif; ?>
 					</td>
 					</tr>
+					<?php if ( $expandable ) : ?>
+					<tr class="robotstxt-manager-detail-row">
+						<td colspan="7">
+							<?php if ( '' !== $desc ) : ?>
+								<p class="robotstxt-manager-detail-description"><?php echo esc_html( $desc ); ?></p>
+							<?php endif; ?>
+							<?php if ( '' !== $website_url ) : ?>
+								<a href="<?php echo esc_url( $website_url ); ?>" target="_blank" rel="noopener noreferrer"><?php esc_html_e( 'Visit website', 'robotstxt-manager' ); ?> <span class="screen-reader-text"><?php echo esc_html( sprintf( /* translators: %s: plugin name. */ __( '(about %s)', 'robotstxt-manager' ), $name ) ); ?></span></a>
+							<?php endif; ?>
+						</td>
+					</tr>
+					<?php endif; ?>
 				<?php endforeach; ?>
 			</tbody>
 		</table>
@@ -265,4 +289,13 @@ $compat_warnings   = 0;
 .robotstxt-manager-compat--fail { color: #d63638; font-weight: 600; }
 .robotstxt-manager-compat-warning { cursor: help; }
 .robotstxt-manager-row--incompatible { background-color: #fef7f0 !important; }
+
+/* Expandable detail rows (CSS-only toggle). */
+.robotstxt-manager-toggle { display: none; }
+.robotstxt-manager-toggle-label { cursor: pointer; display: inline-block; width: 1.4em; }
+.robotstxt-manager-toggle-arrow::before { content: "\25B8"; /* ▸ */ }
+.robotstxt-manager-detail-row { display: none; }
+.robotstxt-manager-detail-row td { border-top: none !important; }
+tr:has(.robotstxt-manager-toggle:checked) + tr.robotstxt-manager-detail-row { display: table-row; }
+tr:has(.robotstxt-manager-toggle:checked) .robotstxt-manager-toggle-arrow::before { content: "\25BE"; /* ▾ */ }
 </style>
diff --git a/changelog.txt b/changelog.txt
index 830c028..84a9104 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,12 +1,41 @@
 == Changelog ==
 
+= 0.4.0 =
+
+_Release date: 2026-08-14_
+
+**Highlights**
+
+* Click-to-expand rows in the catalog table: clicking the ▸ next to a plugin's name reveals a detail row with the plugin's description and a link to its website on the store, so users can understand what each plugin does before installing. Pure CSS toggle (`:has()` + hidden checkbox) — no JavaScript, consistent with the classic-flow philosophy.
+
+**Added**
+
+* Detail row under each catalog entry, shown when the entry has a description or a website URL (Core 1.4.2+ exposes `description` in the catalog list; entries without either keep a plain, non-expandable row).
+* "Visit website" link using `page_url` (falling back to `homepage`), opened in a new tab with `rel="noopener noreferrer"`.
+
+**Changed**
+
+* Plugin version 0.3.1 → 0.4.0. No database schema changes (no custom tables).
+
+**Compatibility**
+
+* WordPress: 7.0 - 7.1 (declared floor of the ecosystem; scan-confirmed lower)
+* PHP: 8.4 - 8.5 (declared floor of the ecosystem; scan-confirmed lower)
+
 = 0.3.1 =
 
 _Release date: 2026-08-14_
 
+**Changed**
+
 * Default store URL is now `https://www.robotstxt.software` (was `https://plugins.robotstxt.es`). Applies to new activations and fresh installs; existing saved URLs are preserved. The catalog API at the new domain is verified live.
 * Plugin version 0.3.0 → 0.3.1.
 
+**Compatibility**
+
+* WordPress: 7.0 - 7.1 (declared floor of the ecosystem; scan-confirmed lower)
+* PHP: 8.4 - 8.5 (declared floor of the ecosystem; scan-confirmed lower)
+
 = 0.3.0 =
 
 _Release date: 2026-08-13_
diff --git a/readme.txt b/readme.txt
index 9bfe948..8993d34 100644
--- a/readme.txt
+++ b/readme.txt
@@ -3,9 +3,9 @@ Contributors: javiercasares, robotstxt
 Tags: dashboard, catalog, updates, subscriptions, management
 Requires at least: 4.7
 Tested up to: 7.1
-Stable tag: 0.3.1
+Stable tag: 0.4.0
 Requires PHP: 7.4
-Version: 0.3.1
+Version: 0.4.0
 License: GPL-3.0-or-later
 License URI: https://www.gnu.org/licenses/gpl-3.0.txt
 
@@ -17,12 +17,13 @@ Manager (by ROBOTSTXT) is a WordPress plugin that customers install on **their o
 
 * Lists the full plugin catalog with name, type (free/premium), price, and current version.
 * For each catalog entry, shows the **local install state**: not installed, installed (inactive), up to date, or update available.
-* One-click actions (Phase 2+): Install free plugins, Buy paid plugins (redirects to checkout on the store site), trigger native WordPress updates.
+* Click a plugin's row to expand its description and a link to its website on the store.
+* One-click actions: Install, Activate, and Update run on a classic page load with a standard admin notice (green/red) reporting the outcome; Buy redirects to checkout on the store site.
 * Subscription health dashboard (Phase 4+): license expiring soon, payment failed, expired — surfaced as admin notices so issues are visible before updates silently stop.
 
 This plugin does **not** re-implement the per-plugin update mechanism. Every ROBOTSTXT plugin bundles its own copy of the `Robotstxt_Core_Plugin_Updater` SDK, so updates keep working even if Manager is deactivated. Manager's value is visibility and one place to click.
 
-**Phase 1 (current):** Read-only catalog view with local install-state resolution. Settings screen with API key (encrypted at rest), store URL, cache TTL, and connection test. Install/Update/Buy buttons are present but disabled pending Phase 2+.
+**Requires Core 1.4.2+** on the store for descriptions in the catalog list (older Core versions still work; rows simply show no description).
 
 == Using the plugin ==
 
@@ -41,13 +42,13 @@ Configure at **ROBOTSTXT → Settings**:
 
 | Column | Description |
 |---|---|
-| Plugin | Name and current version from the store. |
+| Plugin | Name and current version from the store. Click ▸ to expand the description and website link. |
 | Type | Free or Premium. |
 | Price | Annual price in EUR, or — for free plugins. |
 | Local state | Not installed / Installed (inactive) / Up to date / Update available (vX → vY). |
-| Action | Install / Buy / Update (Phase 2+; disabled in Phase 1). |
+| Action | Install / Activate / Update / Buy, depending on local state. |
 
-Click "Refresh catalog" to force a fresh fetch from Core.
+Click "Refresh catalog" to force a fresh fetch from Core. Install, Activate, and Update run on a classic page load (no JavaScript) and report the result as a standard admin notice.
 
 == Extra Configurations ==
 
@@ -88,6 +89,30 @@ Encrypted at rest using AES-256-CBC with a key derived from your site's WordPres
 
 == Changelog ==
 
+= 0.4.0 =
+
+_Release date: 2026-08-14_
+
+* Click-to-expand rows in the catalog: each plugin's description and a link to its website are shown in a detail row under the plugin name (CSS-only toggle, no JavaScript). Requires Core 1.4.2+ on the store.
+
+= 0.3.1 =
+
+_Release date: 2026-08-14_
+
+* Default store URL is now `https://www.robotstxt.software`. Existing saved URLs are preserved.
+
+= 0.3.0 =
+
+_Release date: 2026-08-13_
+
+* Classic install/activate/update flow: actions run on a full page load (`admin-post.php` with per-action-and-slug nonces) and report the outcome through standard admin notices (green success / red error), replacing the previous AJAX flow.
+
+= 0.2.0 =
+
+_Release date: 2026-08-13_
+
+* Install action: free and premium plugins install directly from the catalog, authenticated with the account-level API key against Core's `/download` endpoint (requires Core 1.4.0+).
+
 = 0.1.3 =
 
 _Release date: 2026-08-12_
diff --git a/robotstxt-manager.php b/robotstxt-manager.php
index be2818b..a4d4f84 100644
--- a/robotstxt-manager.php
+++ b/robotstxt-manager.php
@@ -3,7 +3,7 @@
  * Plugin Name:       Manager (by ROBOTSTXT)
  * Plugin URI:        https://git.robotstxt.es/ROBOTSTXT/robotstxt-manager
  * Description:       Client-side dashboard for the ROBOTSTXT plugin ecosystem. Lists the catalog from a remote Plugins Core install, resolves local install/update state, and installs, activates, and updates plugins directly from the store.
- * Version:           0.3.1
+ * Version:           0.4.0
  * Requires at least: 4.7
  * Requires PHP:      7.4
  * Author:            ROBOTSTXT
@@ -21,7 +21,7 @@ if ( ! defined( 'ABSPATH' ) ) {
 }
 
 /** Plugin version. */
-define( 'ROBOTSTXT_MANAGER_VERSION', '0.3.1' );
+define( 'ROBOTSTXT_MANAGER_VERSION', '0.4.0' );
 
 /** Absolute path to the plugin directory, with trailing slash. */
 define( 'ROBOTSTXT_MANAGER_DIR', plugin_dir_path( __FILE__ ) );