WordPress at a glance
filter is not described

edit_post_(field) filter-hook . WP 2.3.0

Filters the value of a specific post field to edit.

The dynamic portion of the hook name, $field_no_prefix, refers to the post field name.

Usage

add_filter( 'edit_post_(field)', 'filter_function_name_8191', 10, 2 );
function filter_function_name_8191( $value, $post_id ){
	// filter...

	return $value;
}
$value(mixed)
Value of the post field.
$post_id(int)
Post ID.

Where the hook is called

sanitize_post_field()
wp-includes/post.php 2183
$value = apply_filters( "edit_post_{$field}", $value, $post_id );

Where the hook is used (in WP core)

Does not used.