Internal Release 0.3.0

Add configurable exception reporter
Avoid leaking tool exceptions by sending them to a configurable exception reporter
Add optional context to pass to tools
Add basic instrumentation data/labels

test/model_context_protocol/configuration_test.rb

@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+require "test_helper"
+
+module ModelContextProtocol
+  class ConfigurationTest < ActiveSupport::TestCase
+    test "initializes with a default no-op exception reporter" do
+      config = Configuration.new
+      assert_respond_to config, :exception_reporter
+
+      # The default reporter should be callable but do nothing
+      exception = StandardError.new("test error")
+      context = { test: "context" }
+
+      # Should not raise any errors
+      config.exception_reporter.call(exception, context)
+    end
+
+    test "allows setting a custom exception reporter" do
+      config = Configuration.new
+      reported_exception = nil
+      reported_context = nil
+
+      config.exception_reporter = ->(exception, context) do
+        reported_exception = exception
+        reported_context = context
+      end
+
+      test_exception = StandardError.new("test error")
+      test_context = { foo: "bar" }
+
+      config.exception_reporter.call(test_exception, test_context)
+
+      assert_equal test_exception, reported_exception
+      assert_equal test_context, reported_context
+    end
+  end
+end