diff --git a/CHANGELOG.md b/CHANGELOG.md
index 02fe6d9..d04235f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,7 +27,7 @@
 ### ⚠ BREAKING CHANGES
 
 * Auth: expose `access_token` and `refresh_token` at top level of auth
-  credentails, instead of a `dict`
+  credentials, instead of a `dict`
   ([commit](https://github.com/google/adk-python/commit/956fb912e8851b139668b1ccb8db10fd252a6990)).
 
 ### Features
@@ -50,7 +50,7 @@
 
 ### Miscellaneous Chores
 
-* README.md impprovements.
+* README.md improvements.
 * Various code improvements.
 * Various typo fixes.
 * Bump min version of google-genai to 1.11.0.
@@ -108,4 +108,4 @@
 * Built-in evaluation support
 * Development UI that makes local development easy
 * Deploy to Google Cloud Run, Agent Engine
-* (Experimental) Live(Bidi) auido/video agent support and Compositional Function Calling(CFC) support
+* (Experimental) Live(Bidi) audio/video agent support and Compositional Function Calling(CFC) support
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 12b5f32..0cee99f 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -56,16 +56,16 @@ This project follows
 
 ### Requirement for PRs
 
-- All PRs, other than small documentation or typo fixes, should have an issue associated. If not, please create one. 
-- Submit small, focused PRs. Keep changes minimal—one concern per PR.
-- For bug fixes or features, please provide logs or screenshots after the fix is applied to help reviewers better understand the change.
-- Please add corresponding tests for your code change if it is not covered by existing tests.
+- All PRs, other than small documentation or typo fixes, should have a Issue assoicated. If not, please create one. 
+- Small, focused PRs. Keep changes minimal—one concern per PR.
+- For bug fixes or features, please provide logs or screenshot after the fix is applied to help reviewers better understand the fix.
+- Please add corresponding testing for your code change if it's not covered by existing tests.
 
 ### Large or Complex Changes
 For substantial features or architectural revisions:
 
-- Open an issue first: Outline your proposal, including design considerations and impact.
-- Gather feedback: Discuss with maintainers and the community to ensure alignment and avoid duplicate work.
+- Open an Issue First: Outline your proposal, including design considerations and impact.
+- Gather Feedback: Discuss with maintainers and the community to ensure alignment and avoid duplicate work
 
 ### Code reviews
 
diff --git a/tests/unittests/tools/openapi_tool/openapi_spec_parser/test_rest_api_tool.py b/tests/unittests/tools/openapi_tool/openapi_spec_parser/test_rest_api_tool.py
index 74b83d6..968570d 100644
--- a/tests/unittests/tools/openapi_tool/openapi_spec_parser/test_rest_api_tool.py
+++ b/tests/unittests/tools/openapi_tool/openapi_spec_parser/test_rest_api_tool.py
@@ -61,7 +61,7 @@ class TestRestApiTool:
     return mock_parser
 
   @pytest.fixture
-  def sample_endpiont(self):
+  def sample_endpoint(self):
     return OperationEndpoint(
         base_url="https://example.com", path="/test", method="GET"
     )