> ## Documentation Index > Fetch the complete documentation index at: https://docs.wpbevel.com/llms.txt > Use this file to discover all available pages before exploring further. # Hooks and constants > Every filter and action the theme, Bevel Kit and Bevel MCP expose, with defaults, and the constants a site can set. Hook names starting `bevel/` belong to Bevel Kit; `bevel_mcp_` to Bevel MCP; the theme's are plain `bevel_`. Each row gives the arguments and the default. ## Theme | Hook | Args (default) | Purpose | | ------------------------------------ | --------------------- | --------------------------------------------------------------------------------------------------------- | | `bevel_header_footer` | `bool` (true) | Draw the theme's own header and footer when no builder template applies. | | `bevel_page_title` | `bool` (true) | Print a fallback part's title block. The theme sets it false for documents with Elementor's "Hide Title". | | `bevel_content_width` | `int` (800) | `$content_width`. | | `bevel_enable_skip_link` | `bool` (true) | Print the skip link. | | `bevel_skip_link_url` | `string` (`#content`) | Its target. | | `bevel_viewport_content` | `string` | The viewport meta content. | | `bevel_description_meta_tag` | `bool` (true) | Excerpt as meta description on singular. | | `bevel_register_elementor_locations` | `bool` (true) | Register Elementor's core locations. | | `bevel_add_woocommerce_support` | `bool` (true) | Declare WooCommerce supports. | ## Bevel Kit ### Theme Builder and locations | Hook | Args (default) | Purpose | | ------------------------------------------------------------------------------- | ------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `bevel/theme_builder/document_types` | `array` type → class | The template types (header, footer, single, single-post, single-page, archive, search-results, error-404, section; popups, loop items and the shop types are added by their modules). | | `bevel/theme_builder/groups` | `array` | Sidebar groups of the Theme Builder app. | | `bevel/theme_builder/post_types` | `array` slug → label | Post types offered as condition targets. | | `bevel/theme_builder/documents_for_location` | `array $documents, string $location` | Templates chosen for a location, best match first. | | `bevel/theme_builder/conditions/register` (action) | `Conditions_Manager` | Register additional display conditions. | | `bevel/theme_builder/conditions_cache/extra_ids` | `int[]` | Documents with conditions outside the template library. | | `bevel/theme_builder/template_item` | `array $item, $document` | A template's row in the list. | | `bevel/theme_builder/preview_query_args` | `array $args, $document` | The query a template previews with. | | `bevel/theme/register_locations` (action) | `Locations_Manager` | Themes register locations. | | `bevel/theme/locations_registered` (action) | `Locations_Manager` | After registration. | | `bevel/theme/before_do_{location}`, `bevel/theme/after_do_{location}` (actions) | `Locations_Manager` | Around a location's output. | | `bevel/theme/need_override_location` | `bool, string $location, $manager` | Whether to take over the page for a location. | ### Forms | Hook | Args (default) | Purpose | | ------------------------------------- | -------------------------------- | ----------------------------------------------------- | | `bevel/forms/field_types` | `array` | Field types the Form widget offers. | | `bevel/forms/actions` | `Action_Base[]` | Actions after submit. | | `bevel/forms/before_actions` (action) | `Record, Response` | After validation, before actions. | | `bevel/forms/trusted_proxies` | `string[]` (Cloudflare's ranges) | Proxies whose forwarded-address headers are believed. | | `bevel/forms/rate_limit` | `int` (10) | Submissions per address per minute; 0 disables. | ### Site Settings and admin | Hook | Args (default) | Purpose | | --------------------------------------- | -------------- | ------------------------------------------------- | | `bevel/site_settings/panel_tabs` | `array` | Panel tabs after the Kit's Settings tab. | | `bevel/site_settings/settings_sections` | `array` | Sub-tabs of the Settings tab. | | `bevel/site_settings/option_fields` | `array` | Option-backed fields the Save button may write. | | `bevel/site_settings/settings_groups` | `array` | Which options each sub-tab shows. | | `bevel/admin/pages` | `array` | The Kit's admin screens for the rail and top bar. | ### Editor, elements, templates | Hook | Args (default) | Purpose | | ---------------------------------------- | ----------------- | ------------------------------------------------------- | | `bevel/elementor/pin_to_v3` | `bool` (true) | Keep Elementor's V4 experiments off. | | `bevel/elements/attributes/blocked` | `string[]` | Attributes the custom-attributes control may never set. | | `bevel/kit/allow_unfiltered_custom_code` | `bool, $document` | Who may save raw custom code. | | `bevel/dynamic_tags/classes` | `string[]` | The dynamic tag classes registered. | | `bevel/templates/api_url` | `string` | The template library endpoint. | | `bevel/editor_templates/tabs` | `array` | Tabs of the template modal. | | `bevel/svg/user_can_upload` | `bool, $user` | Who may upload SVG. | | `bevel/starter/auto_run` | `bool` (true) | Install starter templates on a bare site. | ### Loops, menus, duplicator | Hook | Args (default) | Purpose | | ------------------------------------------- | --------------------------------- | ------------------------------------ | | `bevel/loop/query_args` | `array $args, array $settings` | A loop widget's query arguments. | | `bevel/loop/query/{query_id}` (action) | `WP_Query, $widget` | Adjust a named loop's query. | | `bevel_custom_menu_item_output` | `string, WP_Post, int, $args` | Rendered menu item markup. | | `bevel_tb_megamenu_url_{item_id}` | `string` | One mega-menu item's link. | | `bevel/post_duplicator/duplicated` (action) | `int $original, int $copy, array` | After a duplicate is made. | | `bevel/post_duplicator/meta_value` | `mixed, string $key, int $copy` | A meta value on its way to the copy. | | `bevel/post_duplicator/excluded_meta_keys` | `string[]` | Meta the copy never inherits. | | `bevel/post_duplicator/copy_meta/{key}` | `bool, string` | Copy one meta key or not. | | `bevel/post_duplicator/excluded_taxonomies` | `string[]` | Taxonomies the copy never inherits. | ### Optimizer | Hook | Args (default) | Purpose | | ---------------------------------------- | -------------------------------- | ----------------------------------------------------------- | | `bevel_optimizer_enabled` | `bool` (true) | Whether the JS delay engine runs on this request. | | `bevel_optimizer_exclude` | `bool, string` | Exclude a script (by inline text, id or src) from delaying. | | `bevel_optimizer_frontend_config` | `array $config, array $settings` | The engine's configuration object. | | `bevel_optimizer_frontend_rewrite` | `string $html, array $settings` | The page HTML before script tags are neutralised. | | `bevel_optimizer_load_settings` | `array` | Settings after they are read. | | `bevel_optimizer_comment` | `string` | The HTML comment above the engine. | | `bevel_max_first_section_image_preloads` | `int` (4) | Preload links per page. | | `bevel_preload_min_image_pixels` | `int` (50000) | Minimum rendered area for an LCP candidate. | | `bevel_first_section_preload_items` | `array, int $post_id, array` | The preload candidates of the first section. | ## Bevel MCP | Hook | Args (default) | Purpose | | --------------------------- | ---------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------- | | `bevel_mcp_features` | `array` (`docs_minimal`, `no_verify_hint`, `rich_tools`, `slim_guides`, `async_images` true; `plan_build` false) | How the site builds: compact guides and descriptions, one-time notes, compound arguments, deferred image import, the plan-based page generator. | | `bevel_mcp_allowed_origins` | `string[]` (the site's host) | Browser origins allowed to call the endpoint. | ## Constants Read from `wp-config.php`: | Constant | Default | Purpose | | --------------------------------------------------------------------- | -------------------------------------- | ------------------------------------------------------------------------------------------------------ | | `WP_CACHE` | written by the page cache when enabled | The page cache adds `define('WP_CACHE', true)` on its own marked line and only ever removes that line. | | `DONOTCACHEPAGE` | | Respected by the page cache, even when set late in a template. | | `BEVEL_KIT_ACCOUNT_SERVER` | `https://my.wpbevel.com` | The optional account server. | | `BEVEL_KIT_ACCOUNT_API`, `BEVEL_KIT_CONNECT_URL`, `BEVEL_KIT_PRODUCT` | derived | Its API base, connect URL and product id. | Defined by the code: `BEVEL_VERSION`, `BEVEL_KIT_VERSION`, `BEVEL_KIT_MIN_ELEMENTOR` (3.25.0), `BEVEL_KIT_MIN_PHP` (8.0), `BEVEL_MCP_VERSION`, and the path and URL constants of each.