fix: ldjson check now uses the same convention for default URL

README.md

@@ -150,7 +150,7 @@ bin/rails crawlscope:validate:metadata
 bin/rails crawlscope:validate:structured_data
 bin/rails crawlscope:validate:uniqueness
 bin/rails crawlscope:validate:links
-bin/rails crawlscope:validate:ldjson URL=https://example.com/article
+bin/rails crawlscope:validate:ldjson
 ```
 
 The same validation surface is also available in the gem repository itself through plain `rake`:
@@ -163,7 +163,7 @@ bundle exec rake crawlscope:validate:ldjson URL=https://example.com/article
 
 `crawlscope:validate` runs all default sitemap rules: metadata, structured data, uniqueness, and links. `URL` is the site base. Without `SITEMAP`, Crawlscope uses `/sitemap.xml`. With `SITEMAP`, Crawlscope uses `URL` as the site base and validates URLs from that sitemap. `SITEMAP` may be a full URL or a local file path.
 
-`crawlscope:validate:ldjson` is separate because it directly checks the URL or semicolon-separated URLs in `URL`; it does not crawl the sitemap.
+`crawlscope:validate:ldjson` is separate because it directly checks the URL or semicolon-separated URLs in `URL`; it does not crawl the sitemap. Without `URL`, it checks the configured base URL, falling back to `http://localhost:3000`.
 
 ### Structured Data URL Audit
 

Rakefile

@@ -105,7 +105,7 @@ namespace :crawlscope do
   end
 
   namespace :validate do
-    desc "Directly validate JSON-LD on one or more URLs. ENV: URL (required, semicolon-separated), DEBUG=1, JS=1, TIMEOUT, NETWORK_IDLE_TIMEOUT, REPORT_PATH, SUMMARY=1"
+    desc "Directly validate JSON-LD on one or more URLs. ENV: URL (semicolon-separated), DEBUG=1, JS=1, TIMEOUT, NETWORK_IDLE_TIMEOUT, REPORT_PATH, SUMMARY=1"
     task :ldjson do
       Crawlscope::RakeTasks.ldjson
     end

lib/crawlscope/cli.rb

@@ -105,6 +105,7 @@ def run_ldjson
       parser.parse!(@argv)
 
       urls = options[:urls].map(&:strip).reject(&:empty?)
+      urls = default_urls if urls.empty?
       raise ConfigurationError, "Crawlscope URL is not configured" if urls.empty?
 
       configure_renderer(options[:renderer])
@@ -238,6 +239,10 @@ def resolved_urls_from_env
       raw_urls.split(";").map(&:strip).reject(&:empty?)
     end
 
+    def default_urls
+      [normalized_string(@configuration.base_url) || "http://localhost:3000"]
+    end
+
     def task
       @task ||= Run.new(configuration: @configuration, reporter: Reporter.new(io: @out))
     end

lib/tasks/crawlscope_tasks.rake

@@ -5,7 +5,7 @@ namespace :crawlscope do
   end
 
   namespace :validate do
-    desc "Directly validate JSON-LD on one or more URLs. ENV: URL (required, semicolon-separated), DEBUG=1, JS=1, TIMEOUT, NETWORK_IDLE_TIMEOUT, REPORT_PATH, SUMMARY=1"
+    desc "Directly validate JSON-LD on one or more URLs. ENV: URL (semicolon-separated), DEBUG=1, JS=1, TIMEOUT, NETWORK_IDLE_TIMEOUT, REPORT_PATH, SUMMARY=1"
     task ldjson: :environment do
       Crawlscope::RakeTasks.ldjson
     end

test/crawlscope/cli_test.rb

@@ -4,9 +4,10 @@
 
 class CrawlscopeCliTest < Minitest::Test
   class FakeConfiguration
-    attr_accessor :concurrency, :network_idle_timeout_seconds, :output, :renderer, :timeout_seconds
+    attr_accessor :base_url, :concurrency, :network_idle_timeout_seconds, :output, :renderer, :timeout_seconds
 
     def initialize
+      @base_url = nil
       @concurrency = 10
       @network_idle_timeout_seconds = 5
       @renderer = :http
@@ -145,6 +146,17 @@ def test_ldjson_reads_urls_from_environment
     assert_empty err.string
   end
 
+  def test_ldjson_defaults_to_configured_base_url
+    configuration = FakeConfiguration.new
+    configuration.base_url = "https://example.com"
+    task = FakeTask.new
+
+    status = Crawlscope::Cli.start(["ldjson"], out: StringIO.new, err: StringIO.new, configuration: configuration, task: task)
+
+    assert_equal 0, status
+    assert_equal ["https://example.com"], task.json_ld_arguments[:urls]
+  end
+
   def test_validate_caps_default_browser_concurrency
     configuration = FakeConfiguration.new
     task = FakeTask.new
@@ -218,14 +230,16 @@ def test_ldjson_accepts_repeated_urls_and_options
     assert_equal 3, configuration.network_idle_timeout_seconds
   end
 
-  def test_ldjson_requires_urls
+  def test_ldjson_defaults_to_localhost
     out = StringIO.new
     err = StringIO.new
+    task = FakeTask.new
 
-    status = Crawlscope::Cli.start(["ldjson"], out: out, err: err, configuration: FakeConfiguration.new, task: FakeTask.new)
+    status = Crawlscope::Cli.start(["ldjson"], out: out, err: err, configuration: FakeConfiguration.new, task: task)
 
-    assert_equal 1, status
-    assert_includes err.string, "Crawlscope URL is not configured"
+    assert_equal 0, status
+    assert_equal ["http://localhost:3000"], task.json_ld_arguments[:urls]
+    assert_empty err.string
   end
 
   def test_invalid_integer_option_returns_error