diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index b06ba91..6b7b74c 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.2.1"
+  ".": "0.3.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index 87138d0..8cba63f 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 11
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/deeprails-inc%2Fdeeprails-5f0bb342de09a42c51e94feacb97cb4c11c513120637868e4bd0cdaedff14c0c.yml
-openapi_spec_hash: 616b686ef84ded4978605efdbb72183e
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/deeprails-inc%2Fdeeprails-1b76015cbe2a339cfce6bdbdd0b09dcc23535e2dcd992306697d1e40d4a0f035.yml
+openapi_spec_hash: ab1376d561bd2ee20973ba549a1d73f7
 config_hash: 63c6f27e0ba2846cf2d04e70777b3b21
diff --git a/CHANGELOG.md b/CHANGELOG.md
index bfcf33a..f446abf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.3.0 (2025-10-10)
+
+Full Changelog: [v0.2.1...v0.3.0](https://github.com/deeprails/deeprails-ruby-sdk/compare/v0.2.1...v0.3.0)
+
+### Features
+
+* **api:** manual updates ([986412f](https://github.com/deeprails/deeprails-ruby-sdk/commit/986412f6888691af0abdec609a5d456bdac2c1e9))
+
 ## 0.2.1 (2025-10-09)
 
 Full Changelog: [v0.2.0...v0.2.1](https://github.com/deeprails/deeprails-ruby-sdk/compare/v0.2.0...v0.2.1)
diff --git a/Gemfile.lock b/Gemfile.lock
index ebc277f..1cbe902 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,7 +11,7 @@ GIT
 PATH
   remote: .
   specs:
-    deeprails (0.2.1)
+    deeprails (0.3.0)
       connection_pool
 
 GEM
diff --git a/README.md b/README.md
index 75174ff..15a6046 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ To use this gem, install via Bundler by adding the following to your application
 <!-- x-release-please-start-version -->
 
 ```ruby
-gem "deeprails", "~> 0.2.1"
+gem "deeprails", "~> 0.3.0"
 ```
 
 <!-- x-release-please-end -->
diff --git a/lib/deeprails/models/defend_submit_event_params.rb b/lib/deeprails/models/defend_submit_event_params.rb
index a8da8a9..2cb30d9 100644
--- a/lib/deeprails/models/defend_submit_event_params.rb
+++ b/lib/deeprails/models/defend_submit_event_params.rb
@@ -27,12 +27,6 @@ class DefendSubmitEventParams < Deeprails::Internal::Type::BaseModel
       #   @return [String]
       required :model_used, String
 
-      # @!attribute nametag
-      #   An optional, user-defined tag for the event.
-      #
-      #   @return [String]
-      required :nametag, String
-
       # @!attribute run_mode
       #   Run mode for the workflow event. The run mode allows the user to optimize for
       #   speed, accuracy, and cost by determining which models are used to evaluate the
@@ -42,7 +36,13 @@ class DefendSubmitEventParams < Deeprails::Internal::Type::BaseModel
       #   @return [Symbol, Deeprails::Models::DefendSubmitEventParams::RunMode]
       required :run_mode, enum: -> { Deeprails::DefendSubmitEventParams::RunMode }
 
-      # @!method initialize(model_input:, model_output:, model_used:, nametag:, run_mode:, request_options: {})
+      # @!attribute nametag
+      #   An optional, user-defined tag for the event.
+      #
+      #   @return [String, nil]
+      optional :nametag, String
+
+      # @!method initialize(model_input:, model_output:, model_used:, run_mode:, nametag: nil, request_options: {})
       #   Some parameter documentations has been truncated, see
       #   {Deeprails::Models::DefendSubmitEventParams} for more details.
       #
@@ -52,10 +52,10 @@ class DefendSubmitEventParams < Deeprails::Internal::Type::BaseModel
       #
       #   @param model_used [String] Model ID used to generate the output, like `gpt-4o` or `o3`.
       #
-      #   @param nametag [String] An optional, user-defined tag for the event.
-      #
       #   @param run_mode [Symbol, Deeprails::Models::DefendSubmitEventParams::RunMode] Run mode for the workflow event. The run mode allows the user to optimize for s
       #
+      #   @param nametag [String] An optional, user-defined tag for the event.
+      #
       #   @param request_options [Deeprails::RequestOptions, Hash{Symbol=>Object}]
 
       class ModelInput < Deeprails::Internal::Type::BaseModel
diff --git a/lib/deeprails/resources/defend.rb b/lib/deeprails/resources/defend.rb
index 7e6f21a..065d640 100644
--- a/lib/deeprails/resources/defend.rb
+++ b/lib/deeprails/resources/defend.rb
@@ -94,7 +94,7 @@ def retrieve_workflow(workflow_id, params = {})
       # Use this endpoint to submit a model input and output pair to a workflow for
       # evaluation
       #
-      # @overload submit_event(workflow_id, model_input:, model_output:, model_used:, nametag:, run_mode:, request_options: {})
+      # @overload submit_event(workflow_id, model_input:, model_output:, model_used:, run_mode:, nametag: nil, request_options: {})
       #
       # @param workflow_id [String] Workflow ID associated with this event.
       #
@@ -104,10 +104,10 @@ def retrieve_workflow(workflow_id, params = {})
       #
       # @param model_used [String] Model ID used to generate the output, like `gpt-4o` or `o3`.
       #
-      # @param nametag [String] An optional, user-defined tag for the event.
-      #
       # @param run_mode [Symbol, Deeprails::Models::DefendSubmitEventParams::RunMode] Run mode for the workflow event. The run mode allows the user to optimize for s
       #
+      # @param nametag [String] An optional, user-defined tag for the event.
+      #
       # @param request_options [Deeprails::RequestOptions, Hash{Symbol=>Object}, nil]
       #
       # @return [Deeprails::Models::WorkflowEventResponse]
diff --git a/lib/deeprails/version.rb b/lib/deeprails/version.rb
index db4e7bb..aa5b970 100644
--- a/lib/deeprails/version.rb
+++ b/lib/deeprails/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Deeprails
-  VERSION = "0.2.1"
+  VERSION = "0.3.0"
 end
diff --git a/rbi/deeprails/models/defend_submit_event_params.rbi b/rbi/deeprails/models/defend_submit_event_params.rbi
index 12859eb..8b1fde2 100644
--- a/rbi/deeprails/models/defend_submit_event_params.rbi
+++ b/rbi/deeprails/models/defend_submit_event_params.rbi
@@ -35,10 +35,6 @@ module Deeprails
       sig { returns(String) }
       attr_accessor :model_used
 
-      # An optional, user-defined tag for the event.
-      sig { returns(String) }
-      attr_accessor :nametag
-
       # Run mode for the workflow event. The run mode allows the user to optimize for
       # speed, accuracy, and cost by determining which models are used to evaluate the
       # event. Available run modes include `precision_plus`, `precision`, `smart`, and
@@ -46,13 +42,20 @@ module Deeprails
       sig { returns(Deeprails::DefendSubmitEventParams::RunMode::OrSymbol) }
       attr_accessor :run_mode
 
+      # An optional, user-defined tag for the event.
+      sig { returns(T.nilable(String)) }
+      attr_reader :nametag
+
+      sig { params(nametag: String).void }
+      attr_writer :nametag
+
       sig do
         params(
           model_input: Deeprails::DefendSubmitEventParams::ModelInput::OrHash,
           model_output: String,
           model_used: String,
-          nametag: String,
           run_mode: Deeprails::DefendSubmitEventParams::RunMode::OrSymbol,
+          nametag: String,
           request_options: Deeprails::RequestOptions::OrHash
         ).returns(T.attached_class)
       end
@@ -65,13 +68,13 @@ module Deeprails
         model_output:,
         # Model ID used to generate the output, like `gpt-4o` or `o3`.
         model_used:,
-        # An optional, user-defined tag for the event.
-        nametag:,
         # Run mode for the workflow event. The run mode allows the user to optimize for
         # speed, accuracy, and cost by determining which models are used to evaluate the
         # event. Available run modes include `precision_plus`, `precision`, `smart`, and
         # `economy`. Defaults to `smart`.
         run_mode:,
+        # An optional, user-defined tag for the event.
+        nametag: nil,
         request_options: {}
       )
       end
@@ -82,8 +85,8 @@ module Deeprails
             model_input: Deeprails::DefendSubmitEventParams::ModelInput,
             model_output: String,
             model_used: String,
-            nametag: String,
             run_mode: Deeprails::DefendSubmitEventParams::RunMode::OrSymbol,
+            nametag: String,
             request_options: Deeprails::RequestOptions
           }
         )
diff --git a/rbi/deeprails/resources/defend.rbi b/rbi/deeprails/resources/defend.rbi
index 594ac65..1c7be95 100644
--- a/rbi/deeprails/resources/defend.rbi
+++ b/rbi/deeprails/resources/defend.rbi
@@ -93,8 +93,8 @@ module Deeprails
           model_input: Deeprails::DefendSubmitEventParams::ModelInput::OrHash,
           model_output: String,
           model_used: String,
-          nametag: String,
           run_mode: Deeprails::DefendSubmitEventParams::RunMode::OrSymbol,
+          nametag: String,
           request_options: Deeprails::RequestOptions::OrHash
         ).returns(Deeprails::WorkflowEventResponse)
       end
@@ -109,13 +109,13 @@ module Deeprails
         model_output:,
         # Model ID used to generate the output, like `gpt-4o` or `o3`.
         model_used:,
-        # An optional, user-defined tag for the event.
-        nametag:,
         # Run mode for the workflow event. The run mode allows the user to optimize for
         # speed, accuracy, and cost by determining which models are used to evaluate the
         # event. Available run modes include `precision_plus`, `precision`, `smart`, and
         # `economy`. Defaults to `smart`.
         run_mode:,
+        # An optional, user-defined tag for the event.
+        nametag: nil,
         request_options: {}
       )
       end
diff --git a/sig/deeprails/models/defend_submit_event_params.rbs b/sig/deeprails/models/defend_submit_event_params.rbs
index 20333f5..7d9076a 100644
--- a/sig/deeprails/models/defend_submit_event_params.rbs
+++ b/sig/deeprails/models/defend_submit_event_params.rbs
@@ -5,8 +5,8 @@ module Deeprails
         model_input: Deeprails::DefendSubmitEventParams::ModelInput,
         model_output: String,
         model_used: String,
-        nametag: String,
-        run_mode: Deeprails::Models::DefendSubmitEventParams::run_mode
+        run_mode: Deeprails::Models::DefendSubmitEventParams::run_mode,
+        nametag: String
       }
       & Deeprails::Internal::Type::request_parameters
 
@@ -20,16 +20,18 @@ module Deeprails
 
       attr_accessor model_used: String
 
-      attr_accessor nametag: String
-
       attr_accessor run_mode: Deeprails::Models::DefendSubmitEventParams::run_mode
 
+      attr_reader nametag: String?
+
+      def nametag=: (String) -> String
+
       def initialize: (
         model_input: Deeprails::DefendSubmitEventParams::ModelInput,
         model_output: String,
         model_used: String,
-        nametag: String,
         run_mode: Deeprails::Models::DefendSubmitEventParams::run_mode,
+        ?nametag: String,
         ?request_options: Deeprails::request_opts
       ) -> void
 
@@ -37,8 +39,8 @@ module Deeprails
         model_input: Deeprails::DefendSubmitEventParams::ModelInput,
         model_output: String,
         model_used: String,
-        nametag: String,
         run_mode: Deeprails::Models::DefendSubmitEventParams::run_mode,
+        nametag: String,
         request_options: Deeprails::RequestOptions
       }
 
diff --git a/sig/deeprails/resources/defend.rbs b/sig/deeprails/resources/defend.rbs
index 17ba5fc..596e2c1 100644
--- a/sig/deeprails/resources/defend.rbs
+++ b/sig/deeprails/resources/defend.rbs
@@ -28,8 +28,8 @@ module Deeprails
         model_input: Deeprails::DefendSubmitEventParams::ModelInput,
         model_output: String,
         model_used: String,
-        nametag: String,
         run_mode: Deeprails::Models::DefendSubmitEventParams::run_mode,
+        ?nametag: String,
         ?request_options: Deeprails::request_opts
       ) -> Deeprails::WorkflowEventResponse
 
diff --git a/test/deeprails/resources/defend_test.rb b/test/deeprails/resources/defend_test.rb
index 7b512af..734a437 100644
--- a/test/deeprails/resources/defend_test.rb
+++ b/test/deeprails/resources/defend_test.rb
@@ -86,7 +86,6 @@ def test_submit_event_required_params
         model_input: {user_prompt: "user_prompt"},
         model_output: "model_output",
         model_used: "model_used",
-        nametag: "nametag",
         run_mode: :precision_plus
       )