diff --git a/instrumentation/opentelemetry-instrumentation-genai-agno/pyproject.toml b/instrumentation/opentelemetry-instrumentation-genai-agno/pyproject.toml
index a4b53d926..6ae0386e4 100644
--- a/instrumentation/opentelemetry-instrumentation-genai-agno/pyproject.toml
+++ b/instrumentation/opentelemetry-instrumentation-genai-agno/pyproject.toml
@@ -50,9 +50,6 @@ include = ["/src", "/tests"]
 [tool.hatch.build.targets.wheel]
 packages = ["src/opentelemetry"]
 
-[tool.pytest.ini_options]
-testpaths = ["tests"]
-
 [tool.towncrier]
 directory = ".changelog"
 filename = "CHANGELOG.md"
diff --git a/instrumentation/opentelemetry-instrumentation-genai-anthropic/pyproject.toml b/instrumentation/opentelemetry-instrumentation-genai-anthropic/pyproject.toml
index 836510ed5..d74f56e86 100644
--- a/instrumentation/opentelemetry-instrumentation-genai-anthropic/pyproject.toml
+++ b/instrumentation/opentelemetry-instrumentation-genai-anthropic/pyproject.toml
@@ -50,12 +50,6 @@ include = ["/src", "/tests", "/examples"]
 [tool.hatch.build.targets.wheel]
 packages = ["src/opentelemetry"]
 
-[tool.pytest.ini_options]
-testpaths = ["tests"]
-markers = [
-  "conformance: GenAI semconv conformance scenario (run via the *-conformance tox envs)",
-]
-
 [tool.towncrier]
 directory = ".changelog"
 filename = "CHANGELOG.md"
diff --git a/instrumentation/opentelemetry-instrumentation-genai-claude-agent-sdk/pyproject.toml b/instrumentation/opentelemetry-instrumentation-genai-claude-agent-sdk/pyproject.toml
index 08375dc58..57133cd04 100644
--- a/instrumentation/opentelemetry-instrumentation-genai-claude-agent-sdk/pyproject.toml
+++ b/instrumentation/opentelemetry-instrumentation-genai-claude-agent-sdk/pyproject.toml
@@ -49,9 +49,6 @@ include = ["/src", "/tests", "/examples"]
 [tool.hatch.build.targets.wheel]
 packages = ["src/opentelemetry"]
 
-[tool.pytest.ini_options]
-testpaths = ["tests"]
-
 [tool.towncrier]
 directory = ".changelog"
 filename = "CHANGELOG.md"
diff --git a/instrumentation/opentelemetry-instrumentation-genai-crewai/pyproject.toml b/instrumentation/opentelemetry-instrumentation-genai-crewai/pyproject.toml
index 447561a84..2a1f87a28 100644
--- a/instrumentation/opentelemetry-instrumentation-genai-crewai/pyproject.toml
+++ b/instrumentation/opentelemetry-instrumentation-genai-crewai/pyproject.toml
@@ -52,9 +52,6 @@ include = ["/src", "/tests"]
 [tool.hatch.build.targets.wheel]
 packages = ["src/opentelemetry"]
 
-[tool.pytest.ini_options]
-testpaths = ["tests"]
-
 [tool.towncrier]
 directory = ".changelog"
 filename = "CHANGELOG.md"
diff --git a/instrumentation/opentelemetry-instrumentation-genai-llama-index/pyproject.toml b/instrumentation/opentelemetry-instrumentation-genai-llama-index/pyproject.toml
index 47bb2a27c..ad5cb3ca8 100644
--- a/instrumentation/opentelemetry-instrumentation-genai-llama-index/pyproject.toml
+++ b/instrumentation/opentelemetry-instrumentation-genai-llama-index/pyproject.toml
@@ -50,9 +50,6 @@ include = ["/src", "/tests"]
 [tool.hatch.build.targets.wheel]
 packages = ["src/opentelemetry"]
 
-[tool.pytest.ini_options]
-testpaths = ["tests"]
-
 [tool.towncrier]
 directory = ".changelog"
 filename = "CHANGELOG.md"
diff --git a/instrumentation/opentelemetry-instrumentation-genai-smolagents/pyproject.toml b/instrumentation/opentelemetry-instrumentation-genai-smolagents/pyproject.toml
index 67140011a..978413e9d 100644
--- a/instrumentation/opentelemetry-instrumentation-genai-smolagents/pyproject.toml
+++ b/instrumentation/opentelemetry-instrumentation-genai-smolagents/pyproject.toml
@@ -50,9 +50,6 @@ include = ["/src", "/tests"]
 [tool.hatch.build.targets.wheel]
 packages = ["src/opentelemetry"]
 
-[tool.pytest.ini_options]
-testpaths = ["tests"]
-
 [tool.towncrier]
 directory = ".changelog"
 filename = "CHANGELOG.md"
diff --git a/pytest.ini b/pytest.ini
index 886af1c76..8ee827e66 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -3,3 +3,6 @@
 addopts = -rfE -v
 log_cli = true
 log_cli_level = warning
+asyncio_default_fixture_loop_scope = function
+markers =
+    conformance: GenAI semconv conformance scenario (run via the *-conformance tox envs)
diff --git a/tox.ini b/tox.ini
index 0ba70782d..b6c9bc86f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -324,7 +324,7 @@ commands_pre =
   sh -c "sudo apt update -y && sudo apt install --assume-yes shellcheck"
 
 commands =
-  sh -c "find {toxinidir} -name \*.sh | xargs shellcheck --severity=warning"
+  sh -c "find {toxinidir} -type f -name '*.sh' -not -path '*/.tox/*' -not -path '*/.venv*/*' -not -path '*/venv*/*' -print0 | xargs -0 shellcheck --severity=warning"
 
 [testenv:{precommit,ruff}]
 basepython: python3