diff --git a/pyproject.toml b/pyproject.toml
index 2789bcf82a..16e83a2f66 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -30,7 +30,7 @@ dependencies = [
   "anyio>=4.9.0, <5.0.0",                                    # For MCP Session Manager
   "authlib>=1.6.6, <2.0.0",                                  # For RestAPI Tool
   "click>=8.1.8, <9.0.0",                                    # For CLI tools
-  "fastapi>=0.124.1, <1.0.0",                                # FastAPI framework
+  "fastapi>=0.124.1,<1.0.0",                                # FastAPI framework
   "google-api-python-client>=2.157.0, <3.0.0",               # Google API client discovery
   "google-auth[pyopenssl]>=2.47.0",                          # Google Auth library
   "google-cloud-aiplatform[agent_engines]>=1.132.0, <2.0.0", # For VertexAI integrations, e.g. example store.
@@ -44,11 +44,11 @@ dependencies = [
   "google-cloud-spanner>=3.56.0, <4.0.0",                    # For Spanner database
   "google-cloud-speech>=2.30.0, <3.0.0",                     # For Audio Transcription
   "google-cloud-storage>=2.18.0, <4.0.0",                    # For GCS Artifact service
-  "google-genai>=1.64.0, <2.0.0",                            # Google GenAI SDK
+  "google-genai>=1.64.0,<2.0.0",                            # Google GenAI SDK
   "graphviz>=0.20.2, <1.0.0",                                # Graphviz for graph rendering
-  "httpx>=0.27.0, <1.0.0",                                   # HTTP client library
+  "httpx>=0.27.0,<1.0.0",                                   # HTTP client library
   "jsonschema>=4.23.0, <5.0.0",                              # Agent Builder config validation
-  "mcp>=1.23.0, <2.0.0",                                     # For MCP Toolset
+  "mcp>=1.23.0,<2.0.0",                                     # For MCP Toolset
   "opentelemetry-api>=1.36.0, <1.39.0",                      # OpenTelemetry - keep below 1.39.0 due to current agent_engines exporter constraints.
   "opentelemetry-exporter-gcp-logging>=1.9.0a0, <2.0.0",
   "opentelemetry-exporter-gcp-monitoring>=1.9.0a0, <2.0.0",
@@ -57,7 +57,7 @@ dependencies = [
   "opentelemetry-resourcedetector-gcp>=1.9.0a0, <2.0.0",
   "opentelemetry-sdk>=1.36.0, <1.39.0",
   "pyarrow>=14.0.0",
-  "pydantic>=2.12.0, <3.0.0",                                 # For data validation/models
+  "pydantic>=2.12.0,<3.0.0",                                 # For data validation/models
   "python-dateutil>=2.9.0.post0, <3.0.0",                    # For Vertext AI Session Service
   "python-dotenv>=1.0.0, <2.0.0",                            # To manage environment variables
   "requests>=2.32.4, <3.0.0",
diff --git a/src/google/adk/tools/openapi_tool/auth/auth_helpers.py b/src/google/adk/tools/openapi_tool/auth/auth_helpers.py
index e8eba69a94..9ba97de27a 100644
--- a/src/google/adk/tools/openapi_tool/auth/auth_helpers.py
+++ b/src/google/adk/tools/openapi_tool/auth/auth_helpers.py
@@ -56,11 +56,11 @@ class OpenIdConfig(BaseModel):
 
   Example:
       config = OpenIdConfig(
-          client_id="your_client_id",
+          client_id="YOUR_CLIENT_ID",
           auth_uri="https://accounts.google.com/o/oauth2/auth",
           token_uri="https://oauth2.googleapis.com/token",
-          client_secret="your_client_secret",
-          redirect
+          client_secret="YOUR_CLIENT_SECRET",
+          redirect_uri="https://example.com/callback"
       )
   """
 
@@ -83,15 +83,15 @@ def token_to_scheme_credential(
   ```
   # API Key in header
   auth_scheme, auth_credential = token_to_scheme_credential("apikey", "header",
-  "X-API-Key", "your_api_key_value")
+  "X-API-Key", "YOUR_API_KEY")
 
   # API Key in query parameter
   auth_scheme, auth_credential = token_to_scheme_credential("apikey", "query",
-  "api_key", "your_api_key_value")
+  "api_key", "YOUR_API_KEY")
 
   # OAuth2 Bearer Token in Authorization header
   auth_scheme, auth_credential = token_to_scheme_credential("oauth2Token",
-  "header", "Authorization", "your_bearer_token_value")
+  "header", "Authorization", "YOUR_TOKEN")
   ```
 
   Args: