UI: Standardize button sizing to 40px across all experiments

.github/workflows/build-plugin-zip.yml

@@ -25,7 +25,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
           persist-credentials: false

.github/workflows/dependency-review.yml

@@ -19,7 +19,7 @@ jobs:
       contents: read
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       - name: Dependency Review
         uses: actions/dependency-review-action@a1d282b36b6f3519aa1f3fc636f609c47dddb294 # v5.0.0

.github/workflows/plugin-check.yml

@@ -10,7 +10,6 @@ on:
     types:
       - opened
       - synchronize
-      - ready_for_review
 
 # Cancels all previous workflow runs for pull requests that have not completed.
 concurrency:
@@ -32,7 +31,7 @@ jobs:
     timeout-minutes: 20
     steps:
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
           persist-credentials: false

.github/workflows/pr-playground-preview.yml

@@ -63,7 +63,7 @@ jobs:
 
       - name: Expose built artifact
         id: expose
-        uses: WordPress/action-wp-playground-pr-preview/.github/actions/expose-artifact-on-public-url@c8607529dac8d2bf9a1e8493865fc97cd1c3c87b # v2
+        uses: WordPress/action-wp-playground-pr-preview/.github/actions/expose-artifact-on-public-url@5e92f5e3c80d06126f22e83e4bb21221fbbd3e7f # v3
         with:
           artifact-name: ${{ steps.pr-metadata.outputs.artifact-name }}
           artifact-filename: ai.zip
@@ -102,7 +102,7 @@ jobs:
           ARTIFACT_URL: ${{ steps.expose.outputs.artifact-url }}
 
       - name: Post Playground preview button
-        uses: WordPress/action-wp-playground-pr-preview@c8607529dac8d2bf9a1e8493865fc97cd1c3c87b # v2
+        uses: WordPress/action-wp-playground-pr-preview@5e92f5e3c80d06126f22e83e4bb21221fbbd3e7f # v3
         with:
           mode: append-to-description
           blueprint: ${{ steps.blueprint.outputs.blueprint }}

.github/workflows/test.yml

@@ -10,7 +10,6 @@ on:
     types:
       - opened
       - synchronize
-      - ready_for_review
 
 # Cancels all previous workflow runs for pull requests that have not completed.
 concurrency:
@@ -40,7 +39,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
           persist-credentials: false
@@ -96,7 +95,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
           persist-credentials: false
@@ -189,7 +188,7 @@ jobs:
           echo "PHP_FPM_GID=$(id -g)" >> "$GITHUB_ENV"
 
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
           persist-credentials: false
@@ -247,7 +246,7 @@ jobs:
       - name: Upload code coverage report
         continue-on-error: true
         if: ${{ matrix.coverage }}
-        uses: codecov/codecov-action@57e3a136b779b570ffcdbf80b3bdc90e7fab3de2 # v6.0.0
+        uses: codecov/codecov-action@e79a6962e0d4c0c17b229090214935d2e33f8354 # v6.0.1
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: tests/_output/php-coverage.xml
@@ -279,7 +278,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
           persist-credentials: false
@@ -320,7 +319,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
           persist-credentials: false

.github/workflows/wporg-plugin-deploy.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       - name: Set up PHP
         uses: shivammathur/setup-php@7c071dfe9dc99bdf297fa79cb49ea005b9fcadbc # v2.37.1

README.md

@@ -49,9 +49,15 @@ This [Canonical Plugin](https://make.wordpress.org/core/2022/09/11/canonical-plu
 * **Guidelines** - Allows abilities to respect site-wide editorial standards.
 * **[Image Generation and Editing](docs/features/image-generation.md)** - Create and edit images from post content in the editor, also via the Media Library.
 * **[Meta Description Generation](docs/experiments/meta-description.md)** - Generates meta description suggestions and integrates those with various SEO plugins.
-* **[Multi-Provider Support](docs/experiments/multi-provider-support.md)** - Works with popular AI providers like OpenAI, Google, and Anthropic.
+* **[Multi-Provider Support](docs/experiments/multi-provider-support.md)** - Works with AI Connector plugins for providers such as OpenAI, Google, and Anthropic.
 * **[Title Generation](docs/experiments/title-generation.md)** -  Generates title suggestions from content.
 
+## Provider Setup
+
+The AI plugin does not include provider credentials or provider implementations by itself. To use AI-powered features, install and activate at least one AI Connector plugin, then configure its credentials in `Settings -> Connectors`. Features may appear unavailable until a connector is installed, authenticated, and capable of the required operation.
+
+Provider connector plugins include [Anthropic](https://wordpress.org/plugins/ai-provider-for-anthropic), [Google](https://wordpress.org/plugins/ai-provider-for-google), [OpenAI](https://wordpress.org/plugins/ai-provider-for-openai), and [others](https://wordpress.org/plugins/tags/connector/).
+
 ## Roadmap
 
 You can view the active plugin roadmap in a filtered view in the WordPress AI [GitHub Project Board](https://github.com/orgs/WordPress/projects/240/views/7).
@@ -66,7 +72,7 @@ Overview of planned features:
 
 ## Developer Experience
 
-The AI plugin is meant to be studied, forked, and extended.  If you’re a host or agency, you can configure AI providers on behalf of your users so they don’t need to bring their own API keys.
+The AI plugin is meant to be studied, forked, and extended.  If you’re a host or agency, you can install and configure AI Connector plugins on behalf of your users so they don’t need to bring their own API keys.
 
 If you’re a plugin developer, you’ll be able to:
 
@@ -88,4 +94,8 @@ Anyone contributing to the AI plugin is expected to conduct themselves in accord
 * **Design:** [Share feedback](https://github.com/WordPress/ai/issues) on UX flows and accessibility.
 * **Test:** Try features as they're [released](https://github.com/WordPress/ai/releases) and [report feedback](https://github.com/WordPress/ai/issues).
 
-View the [Credits](CREDITS.md) file for maintainers, contributors, and libraries for the AI plugin.
+### Maintainers
+
+Maintainers for this repo are [Darin Kotter (@dkotter)](https://github.com/dkotter) and [Jeff Paul (@jeffpaul)](https://github.com/jeffpaul); all can  be reached using the [@WordPress/ai-maintainers](https://github.com/orgs/WordPress/teams/ai-maintainers) team.
+
+View the [Credits](CREDITS.md) file for a full list of maintainers, contributors, and libraries for the AI plugin.

composer.json

@@ -13,10 +13,10 @@
 		"php-stubs/wp-cli-stubs": "^2.12",
 		"phpcompatibility/phpcompatibility-wp": "^3.0.0-alpha",
 		"phpstan/extension-installer": "^1.3",
-		"phpstan/php-8-stubs": "^0.4.0",
+		"phpstan/php-8-stubs": "^0.4.35",
 		"phpstan/phpstan-deprecation-rules": "^2.0.4",
 		"phpstan/phpstan-phpunit": "^2.0.16",
-		"phpstan/phpstan": "^2.1.54",
+		"phpstan/phpstan": "^2.2.1",
 		"phpunit/phpunit": "^8.5|^9.6",
 		"slevomat/coding-standard": "^8.0",
 		"szepeviktor/phpstan-wordpress": "^2.0.2",

docs/experiments/multi-provider-support.md

@@ -2,17 +2,18 @@
 
 ## Summary
 
-The plugin supports multiple AI providers through the WordPress AI Client and connector system. Features and experiments can run against a prioritized provider/model list, automatically fall back when a preferred model is unavailable, and validate capability support before execution.
+The plugin supports multiple AI providers through the WordPress AI Client and connector system. Provider access is supplied by separate AI Connector plugins. Features and experiments can run against a prioritized provider/model list, automatically fall back when a preferred model is unavailable, and validate capability support before execution.
 
 ## Overview
 
 ### For End Users
 
-You can configure one or more AI connectors (for example OpenAI, Google, Anthropic) in WordPress settings. Once configured:
+Install and activate one or more AI Connector plugins, such as OpenAI, Google, or Anthropic, then configure their credentials in `Settings -> Connectors`. Once configured:
 
 - Experiments can use any compatible connected provider.
 - Capability checks prevent running requests on unsupported connectors.
 - If a preferred model is unavailable, another configured model/provider can be used.
+- Features may appear unavailable until a connector is installed, authenticated, and capable of the required operation.
 
 This allows flexibility in cost, performance, and reliability across provider ecosystems.
 
@@ -37,6 +38,8 @@ Credential detection is connector-aware:
 - `wpai_has_ai_credentials` filter allows custom connector implementations to report configured status.
 - `has_valid_ai_credentials()` performs a runtime support probe using AI client prompt checks.
 
+The AI plugin depends on registered `ai_provider` connectors. It does not ship provider credentials or provider implementations directly.
+
 ### Model Selection and Fallback
 
 Default model preference arrays are ordered. The first supported and available provider/model pair is used by the AI Client prompt builder.
@@ -93,6 +96,7 @@ add_filter( 'wpai_has_ai_credentials', function( $has_credentials, $connectors )
 ## Operational Notes
 
 - Configure at least one connector that supports the feature's required capability.
+- If a feature is unavailable, confirm that a provider connector plugin is active, authenticated, and listed under `Settings -> Connectors`.
 - Multi-provider setups can improve resilience when individual providers are unavailable.
 - Keep model preference filters aligned with currently available provider model IDs.
 - If no provider supports the requested capability, abilities should return explicit `WP_Error` responses.

eslint.config.mjs

@@ -42,6 +42,7 @@ export default [
 			'@wordpress/data-no-store-string-literals': 'error',
 			'@wordpress/wp-global-usage': 'error',
 			'@wordpress/react-no-unsafe-timeout': 'error',
+			'@wordpress/components-no-missing-40px-size-prop': 'error',
 
 			// Override WP defaults.
 			'@wordpress/i18n-text-domain': [

includes/Abilities/Image/Alt_Text_Generation.php

@@ -67,9 +67,8 @@ protected function input_schema(): array {
 					'description'       => esc_html__( 'The attachment ID of the image to generate alt text for.', 'ai' ),
 				),
 				'image_url'     => array(
-					'type'              => 'string',
-					'sanitize_callback' => array( $this, 'sanitize_image_reference_input' ),
-					'description'       => esc_html__( 'URL or data URI of the image to generate alt text for. Used if attachment_id is not provided.', 'ai' ),
+					'type'        => 'string',
+					'description' => esc_html__( 'URL or data URI of the image to generate alt text for. Used if attachment_id is not provided.', 'ai' ),
 				),
 				'context'       => array(
 					'type'              => 'string',
@@ -122,6 +121,10 @@ protected function execute_callback( $input ) {
 			),
 		);
 
+		if ( isset( $args['image_url'] ) ) {
+			$args['image_url'] = $this->sanitize_image_reference_input( $args['image_url'] );
+		}
+
 		// Get the image reference.
 		$image_reference = $this->get_image_reference( $args );
 
@@ -150,7 +153,8 @@ protected function execute_callback( $input ) {
 
 		// Return the alt text in the format the Ability expects.
 		return array(
-			'alt_text' => sanitize_text_field( $result ),
+			'alt_text'      => sanitize_text_field( $result ),
+			'is_decorative' => false,
 		);
 	}
 

includes/Abilities/Meta_Description/Meta_Description.php

@@ -284,7 +284,7 @@ static function ( $key, $value ) {
 
 		return array(
 			'text'            => $text,
-			'character_count' => mb_strlen( $text ),
+			'character_count' => mb_strlen( $text, 'UTF-8' ),
 		);
 	}