edit.php (Posts list)

• URL: /wp-admin/edit.php
• Capability required: $post_type_object->cap->edit_posts (typically edit_posts).
• What it does: Lists posts for the post post type, handles bulk actions (trash, delete, edit), and surfaces filters/search for the list table.
• Key hooks: handle_bulk_actions-{$screen}, bulk_post_updated_messages.

post.php (Edit existing post)

• URL: /wp-admin/post.php?post={ID}&action=edit
• Capability required: edit_post (and action-specific caps like delete_post).
• What it does: Handles actions for existing posts (edit, update, trash/delete, restore). Dispatches post_action_* requests.
• Key hooks: post_action_{$action}, replace_editor.

post-new.php (Add new post)

• URL: /wp-admin/post-new.php
• Capability required: $post_type_object->cap->edit_posts and $post_type_object->cap->create_posts (typically edit_posts/create_posts).
• What it does: Initializes a new post, loads the editor, and routes through the block/classic editor selection.
• Key hooks: replace_editor.

edit-form-advanced.php (Classic editor form)

• URL: Included by post.php/post-new.php when using the classic editor.
• Capability required: Same as the parent screen (edit/create posts).
• What it does: Renders the classic editor form, meta boxes, publish box, and the post edit layout.
• Key hooks: edit_form_top, edit_form_before_permalink, edit_form_after_title, edit_form_after_editor, edit_form_advanced, edit_page_form, dbx_post_sidebar, post_edit_form_tag, post_updated_messages, submitpost_box, submitpage_box, enter_title_here, wp_editor_expand.

edit-form-blocks.php (Block editor bootstrap)

• URL: Included by post.php/post-new.php when using the block editor.
• Capability required: Same as the parent screen (edit/create posts). May check edit_theme_options to set global styles context.
• What it does: Bootstraps the block editor, passes boot data, and loads editor scripts/styles.
• Key hooks: enqueue_block_editor_assets, enter_title_here, block_editor_no_javascript_message, default_page_template_title, show_post_locked_dialog, write_your_story.

revision.php (Revision viewer)

• URL: /wp-admin/revision.php?revision={ID}
• Capability required: edit_post for the parent post, read_post for the revision.
• What it does: Displays revision comparisons for a post and controls navigation between revisions.
• Key hooks: (none in file; standard load-revision.php/admin hooks apply via admin.php).