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feat: add support for stateless MCP 2026 draft and protocol negotiation fallback - #699

Merged
anubhav756 merged 5 commits into
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mcp-v202606
Jul 9, 2026
Merged

anubhav756 merged 5 commits into
mainfrom
mcp-v202606

feat: support user-defined fallback protocols array (#707)

e0c772c
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Google Cloud Build / core-python-sdk-pr-py314 (toolbox-testing-438616) succeeded Jul 9, 2026 in 9m 44s

Summary

Build Information

Trigger core-python-sdk-pr-py314
Build 2507945d-468a-4e74-8b7b-2fb7640fc5aa
Start 2026-07-09T04:30:52-07:00
Duration 9m36.906s
Status SUCCESS

Steps

Step Status Duration
Install requirements SUCCESS 9m0.775s
Run integration tests SUCCESS 32.189s

Details


starting build "2507945d-468a-4e74-8b7b-2fb7640fc5aa"

FETCHSOURCE
From https://github.com/googleapis/mcp-toolbox-sdk-python
 * branch            e0c772cf3cac93ad3eb513be5325726e465f111d -> FETCH_HEAD
HEAD is now at e0c772c feat: support user-defined fallback protocols array (#707)
GitCommit:
e0c772cf3cac93ad3eb513be5325726e465f111d
BUILD
Starting Step #0 - "Install requirements"
Step #0 - "Install requirements": Pulling image: python:3.14
Step #0 - "Install requirements": 3.14: Pulling from library/python
Step #0 - "Install requirements": Digest: sha256:09b29c360b84742bf98eba40b214f7f6b4b53286bb2c8a8b5b1afa188a8d9c0e
Step #0 - "Install requirements": Status: Downloaded newer image for python:3.14
Step #0 - "Install requirements": docker.io/library/python:3.14
Step #0 - "Install requirements": Collecting uv
Step #0 - "Install requirements":   Downloading uv-0.11.28-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata (11 kB)
Step #0 - "Install requirements": Downloading uv-0.11.28-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (27.1 MB)
Step #0 - "Install requirements":    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 27.1/27.1 MB 122.6 MB/s  0:00:00
Step #0 - "Install requirements": Installing collected packages: uv
Step #0 - "Install requirements": Successfully installed uv-0.11.28
Step #0 - "Install requirements": WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning.
Step #0 - "Install requirements": Using CPython 3.14.6 interpreter at: /usr/local/bin/python3
Step #0 - "Install requirements": Creating virtual environment at: /workspace/venv
Step #0 - "Install requirements": Activate with: source /workspace/venv/bin/activate
Step #0 - "Install requirements": Using Python 3.14.6 environment at: /workspace/venv
Step #0 - "Install requirements": Resolved 1 package in 256ms
Step #0 - "Install requirements": Downloading uv (25.9MiB)
Step #0 - "Install requirements":  Downloaded uv
Step #0 - "Install requirements": Prepared 1 package in 533ms
Step #0 - "Install requirements": warning: Failed to hardlink files; falling back to full copy. This may lead to degraded performance.
Step #0 - "Install requirements":          If the cache and target directories are on different filesystems, hardlinking may not be supported.
Step #0 - "Install requirements":          If this is intentional, set `export UV_LINK_MODE=copy` or use `--link-mode=copy` to suppress this warning.
Step #0 - "Install requirements": Installed 1 package in 65ms
Step #0 - "Install requirements":  + uv==0.11.28
Step #0 - "Install requirements": Using Python 3.14.6 environment at: /workspace/venv
Step #0 - "Install requirements": Resolved 88 packages in 2.32s
Step #0 - "Install requirements":    Building toolbox-core @ file:///workspace/packages/toolbox-core
Step #0 - "Install requirements": Downloading pygments (1.2MiB)
Step #0 - "Install requirements": Downloading ast-serialize (1.2MiB)
Step #0 - "Install requirements": Downloading cryptography (4.5MiB)
Step #0 - "Install requirements": Downloading pydantic-core (2.0MiB)
Step #0 - "Install requirements": Downloading grpcio (6.6MiB)
Step #0 - "Install requirements": Downloading black (1.8MiB)
Step #0 - "Install requirements": Downloading jedi (4.7MiB)
Step #0 - "Install requirements": Downloading aiohttp (1.7MiB)
Step #0 - "Install requirements": Downloading mypy (14.3MiB)
Step #0 - "Install requirements":       Built toolbox-core @ file:///workspace/packages/toolbox-core
Step #0 - "Install requirements":  Downloaded ast-serialize
Step #0 - "Install requirements":  Downloaded pydantic-core
Step #0 - "Install requirements":  Downloaded aiohttp
Step #0 - "Install requirements":  Downloaded black
Step #0 - "Install requirements":  Downloaded grpcio
Step #0 - "Install requirements":  Downloaded cryptography
Step #0 - "Install requirements":  Downloaded pygments
Step #0 - "Install requirements":  Downloaded mypy
Step #0 - "Install requirements":  Downloaded jedi
Step #0 - "Install requirements":    Building numpy==1.26.4
Step #0 - "Install requirements":       Built numpy==1.26.4
Step #0 - "Install requirements": Prepared 88 packages in 8m 47s
Step #0 - "Install requirements": warning: Failed to hardlink files; falling back to full copy. This may lead to degraded performance.
Step #0 - "Install requirements":          If the cache and target directories are on different filesystems, hardlinking may not be supported.
Step #0 - "Install requirements":          If this is intentional, set `export UV_LINK_MODE=copy` or use `--link-mode=copy` to suppress this warning.
Step #0 - "Install requirements": Installed 88 packages in 1.02s
Step #0 - "Install requirements":  + aiohappyeyeballs==2.7.1
Step #0 - "Install requirements":  + aiohttp==3.14.1
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Step #0 - "Install requirements":  + google-resumable-media==2.10.0
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Step #0 - "Install requirements":  + grpc-google-iam-v1==0.14.4
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Step #0 - "Install requirements":  + idna==3.18
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Step #0 - "Install requirements":  + opentelemetry-exporter-otlp-proto-common==1.41.1
Step #0 - "Install requirements":  + opentelemetry-exporter-otlp-proto-grpc==1.41.1
Step #0 - "Install requirements":  + opentelemetry-exporter-otlp-proto-http==1.41.1
Step #0 - "Install requirements":  + opentelemetry-proto==1.41.1
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Step #0 - "Install requirements":  + opentelemetry-semantic-conventions==0.62b1
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Step #0 - "Install requirements":  + propcache==0.5.2
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Step #0 - "Install requirements":  + psutil==7.2.2
Step #0 - "Install requirements":  + ptyprocess==0.7.0
Step #0 - "Install requirements":  + pure-eval==0.2.3
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Step #0 - "Install requirements":  + pyasn1-modules==0.4.2
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Step #0 - "Install requirements":  + pydantic-core==2.46.4
Step #0 - "Install requirements":  + pygments==2.20.0
Step #0 - "Install requirements":  + pytest==9.0.3
Step #0 - "Install requirements":  + pytest-aioresponses==0.3.0
Step #0 - "Install requirements":  + pytest-asyncio==1.4.0
Step #0 - "Install requirements":  + pytest-cov==7.1.0
Step #0 - "Install requirements":  + pytest-mock==3.15.1
Step #0 - "Install requirements":  + pytokens==0.4.1
Step #0 - "Install requirements":  + requests==2.34.2
Step #0 - "Install requirements":  + stack-data==0.6.3
Step #0 - "Install requirements":  + tokenize-rt==6.2.0
Step #0 - "Install requirements":  + toolbox-core==1.1.0 (from file:///workspace/packages/toolbox-core)
Step #0 - "Install requirements":  + traitlets==5.15.1
Step #0 - "Install requirements":  + typing-extensions==4.16.0
Step #0 - "Install requirements":  + typing-inspection==0.4.2
Step #0 - "Install requirements":  + urllib3==2.7.0
Step #0 - "Install requirements":  + wcwidth==0.8.2
Step #0 - "Install requirements":  + wrapt==2.2.2
Step #0 - "Install requirements":  + yarl==1.24.2
Step #0 - "Install requirements":  + zipp==4.1.0
Step #0 - "Install requirements": Using Python 3.14.6 environment at: /workspace/venv
Step #0 - "Install requirements": Resolved 26 packages in 125ms
Step #0 - "Install requirements": Prepared 1 package in 62ms
Step #0 - "Install requirements": Uninstalled 1 package in 1ms
Step #0 - "Install requirements": warning: Failed to hardlink files; falling back to full copy. This may lead to degraded performance.
Step #0 - "Install requirements":          If the cache and target directories are on different filesystems, hardlinking may not be supported.
Step #0 - "Install requirements":          If this is intentional, set `export UV_LINK_MODE=copy` or use `--link-mode=copy` to suppress this warning.
Step #0 - "Install requirements": Installed 1 package in 9ms
Step #0 - "Install requirements":  - google-auth==2.55.2
Step #0 - "Install requirements":  + google-auth==2.53.0
Finished Step #0 - "Install requirements"
Starting Step #1 - "Run integration tests"
Step #1 - "Run integration tests": Already have image (with digest): python:3.14
Step #1 - "Run integration tests": ============================= test session starts ==============================
Step #1 - "Run integration tests": platform linux -- Python 3.14.6, pytest-9.0.3, pluggy-1.6.0
Step #1 - "Run integration tests": rootdir: /workspace/packages/toolbox-core
Step #1 - "Run integration tests": configfile: pyproject.toml
Step #1 - "Run integration tests": plugins: cov-7.1.0, aioresponses-0.3.0, mock-3.15.1, asyncio-1.4.0
Step #1 - "Run integration tests": asyncio: mode=Mode.STRICT, debug=False, asyncio_default_fixture_loop_scope=None, asyncio_default_test_loop_scope=function
Step #1 - "Run integration tests": collected 887 items
Step #1 - "Run integration tests": 
Step #1 - "Run integration tests": tests/mcp_transport/test_base.py ...................                     [  2%]
Step #1 - "Run integration tests": tests/mcp_transport/test_telemetry.py .................................. [  5%]
Step #1 - "Run integration tests": ...........                                                              [  7%]
Step #1 - "Run integration tests": tests/mcp_transport/test_v20241105.py .................................. [ 11%]
Step #1 - "Run integration tests": ............                                                             [ 12%]
Step #1 - "Run integration tests": tests/mcp_transport/test_v20250326.py .................................. [ 16%]
Step #1 - "Run integration tests": ............                                                             [ 17%]
Step #1 - "Run integration tests": tests/mcp_transport/test_v20250618.py .................................. [ 21%]
Step #1 - "Run integration tests": ................                                                         [ 23%]
Step #1 - "Run integration tests": tests/mcp_transport/test_v20251125.py .................................. [ 27%]
Step #1 - "Run integration tests": ..............                                                           [ 28%]
Step #1 - "Run integration tests": tests/mcp_transport/test_v20260618.py ..........................         [ 31%]
Step #1 - "Run integration tests": tests/test_auth_methods.py ..........                                    [ 32%]
Step #1 - "Run integration tests": tests/test_client.py .................................                   [ 36%]
Step #1 - "Run integration tests": tests/test_e2e.py ...................................                    [ 40%]
Step #1 - "Run integration tests": tests/test_e2e_mcp.py .................................................. [ 45%]
Step #1 - "Run integration tests": ........................................................................ [ 54%]
Step #1 - "Run integration tests": ................................................                         [ 59%]
Step #1 - "Run integration tests": tests/test_sync_e2e.py ..............                                    [ 61%]
Step #1 - "Run integration tests": tests/test_e2e.py ...................................                    [ 65%]
Step #1 - "Run integration tests": tests/test_e2e_mcp.py .................................................. [ 70%]
Step #1 - "Run integration tests": ........................................................................ [ 78%]
Step #1 - "Run integration tests": ................................................                         [ 84%]
Step #1 - "Run integration tests": tests/test_sync_client.py ................                               [ 90%]
Step #1 - "Run integration tests": tests/test_sync_tool.py ....................                             [ 92%]
Step #1 - "Run integration tests": tests/test_tool.py ....................................                  [ 96%]
Step #1 - "Run integration tests": tests/test_utils.py .............................                        [100%]
Step #1 - "Run integration tests": 
Step #1 - "Run integration tests": =============================== warnings summary ===============================
Step #1 - "Run integration tests": tests/test_tool.py:550
Step #1 - "Run integration tests":   /workspace/packages/toolbox-core/tests/test_tool.py:550: SyntaxWarning: "\(" is an invalid escape sequence. Such sequences will not work in the future. Did you mean "\\("? A raw string is also an option.
Step #1 - "Run integration tests":     expected_error_message = "Authentication source\(s\) \`unused-auth-service\` unused by tool \`sample_tool\`."
Step #1 - "Run integration tests": 
Step #1 - "Run integration tests": tests/test_client.py: 9 warnings
Step #1 - "Run integration tests": tests/test_e2e.py: 12 warnings
Step #1 - "Run integration tests": tests/test_e2e_mcp.py: 60 warnings
Step #1 - "Run integration tests": tests/test_sync_e2e.py: 10 warnings
Step #1 - "Run integration tests": tests/test_sync_client.py: 4 warnings
Step #1 - "Run integration tests":   /workspace/packages/toolbox-core/src/toolbox_core/utils.py:56: UserWarning: This connection is using HTTP. To prevent credential exposure, please ensure all communication is sent over HTTPS.
Step #1 - "Run integration tests":     warnings.warn(
Step #1 - "Run integration tests": 
Step #1 - "Run integration tests": tests/test_client.py: 9 warnings
Step #1 - "Run integration tests": tests/test_e2e.py: 14 warnings
Step #1 - "Run integration tests": tests/test_e2e_mcp.py: 70 warnings
Step #1 - "Run integration tests": tests/test_sync_e2e.py: 12 warnings
Step #1 - "Run integration tests": tests/test_sync_client.py: 4 warnings
Step #1 - "Run integration tests": tests/test_tool.py: 19 warnings
Step #1 - "Run integration tests": tests/test_utils.py: 7 warnings
Step #1 - "Run integration tests":   /workspace/packages/toolbox-core/src/toolbox_core/utils.py:165: DeprecationWarning: 'asyncio.iscoroutinefunction' is deprecated and slated for removal in Python 3.16; use inspect.iscoroutinefunction() instead
Step #1 - "Run integration tests":     if asyncio.iscoroutinefunction(source):
Step #1 - "Run integration tests": 
Step #1 - "Run integration tests": tests/test_sync_client.py::TestSyncClientLifecycle::test_load_tool_raises_if_loop_or_thread_none
Step #1 - "Run integration tests":   /workspace/packages/toolbox-core/tests/test_sync_client.py:342: RuntimeWarning: coroutine 'ToolboxClient.load_tool' was never awaited
Step #1 - "Run integration tests":     with pytest.raises(
Step #1 - "Run integration tests":   Enable tracemalloc to get traceback where the object was allocated.
Step #1 - "Run integration tests":   See https://docs.pytest.org/en/stable/how-to/capture-warnings.html#resource-warnings for more info.
Step #1 - "Run integration tests": 
Step #1 - "Run integration tests": tests/test_sync_client.py::TestSyncClientLifecycle::test_load_tool_raises_if_loop_or_thread_none
Step #1 - "Run integration tests":   /workspace/packages/toolbox-core/tests/test_sync_client.py:351: RuntimeWarning: coroutine 'ToolboxClient.load_toolset' was never awaited
Step #1 - "Run integration tests":     with pytest.raises(
Step #1 - "Run integration tests":   Enable tracemalloc to get traceback where the object was allocated.
Step #1 - "Run integration tests":   See https://docs.pytest.org/en/stable/how-to/capture-warnings.html#resource-warnings for more info.
Step #1 - "Run integration tests": 
Step #1 - "Run integration tests": -- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
Step #1 - "Run integration tests": ================================ tests coverage ================================
Step #1 - "Run integration tests": _______________ coverage: platform linux, python 3.14.6-final-0 ________________
Step #1 - "Run integration tests": 
Step #1 - "Run integration tests": Name                                                Stmts   Miss  Cover
Step #1 - "Run integration tests": -----------------------------------------------------------------------
Step #1 - "Run integration tests": src/toolbox_core/__init__.py                            4      0   100%
Step #1 - "Run integration tests": src/toolbox_core/auth_methods.py                       59      2    97%
Step #1 - "Run integration tests": src/toolbox_core/client.py                            149      4    97%
Step #1 - "Run integration tests": src/toolbox_core/exceptions.py                          6      0   100%
Step #1 - "Run integration tests": src/toolbox_core/itransport.py                         20      5    75%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/__init__.py              6      0   100%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/telemetry.py           153     14    91%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/transport_base.py      107      3    97%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20241105/mcp.py       158     21    87%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20241105/types.py      67      1    99%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20250326/mcp.py       170     25    85%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20250326/types.py      67      1    99%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20250618/mcp.py       160     18    89%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20250618/types.py      67      1    99%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20251125/mcp.py       160     21    87%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20251125/types.py      67      1    99%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20260618/mcp.py       136     17    88%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20260618/types.py      60      1    98%
Step #1 - "Run integration tests": src/toolbox_core/protocol.py                           68      0   100%
Step #1 - "Run integration tests": src/toolbox_core/sync_client.py                        45      0   100%
Step #1 - "Run integration tests": src/toolbox_core/sync_tool.py                          67      0   100%
Step #1 - "Run integration tests": src/toolbox_core/tool.py                              119      6    95%
Step #1 - "Run integration tests": src/toolbox_core/utils.py                              61      0   100%
Step #1 - "Run integration tests": src/toolbox_core/version.py                             1      0   100%
Step #1 - "Run integration tests": -----------------------------------------------------------------------
Step #1 - "Run integration tests": TOTAL                                                1977    141    93%
Step #1 - "Run integration tests": Required test coverage of 90% reached. Total coverage: 92.87%
Step #1 - "Run integration tests": ====================== 887 passed, 233 warnings in 24.98s ======================

starting build "2507945d-468a-4e74-8b7b-2fb7640fc5aa"

FETCHSOURCE
From https://github.com/googleapis/mcp-toolbox-sdk-python
 * branch            e0c772cf3cac93ad3eb513be5325726e465f111d -> FETCH_HEAD
HEAD is now at e0c772c feat: support user-defined fallback protocols array (#707)
GitCommit:
e0c772cf3cac93ad3eb513be5325726e465f111d
BUILD
Starting Step #0 - "Install requirements"
Step #0 - "Install requirements": Pulling image: python:3.14
Step #0 - "Install requirements": 3.14: Pulling from library/python
Step #0 - "Install requirements": Digest: sha256:09b29c360b84742bf98eba40b214f7f6b4b53286bb2c8a8b5b1afa188a8d9c0e
Step #0 - "Install requirements": Status: Downloaded newer image for python:3.14
Step #0 - "Install requirements": docker.io/library/python:3.14
Step #0 - "Install requirements": Collecting uv
Step #0 - "Install requirements":   Downloading uv-0.11.28-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata (11 kB)
Step #0 - "Install requirements": Downloading uv-0.11.28-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (27.1 MB)
Step #0 - "Install requirements":    ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 27.1/27.1 MB 122.6 MB/s  0:00:00
Step #0 - "Install requirements": Installing collected packages: uv
Step #0 - "Install requirements": Successfully installed uv-0.11.28
Step #0 - "Install requirements": WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning.
Step #0 - "Install requirements": Using CPython 3.14.6 interpreter at: /usr/local/bin/python3
Step #0 - "Install requirements": Creating virtual environment at: /workspace/venv
Step #0 - "Install requirements": Activate with: source /workspace/venv/bin/activate
Step #0 - "Install requirements": Using Python 3.14.6 environment at: /workspace/venv
Step #0 - "Install requirements": Resolved 1 package in 256ms
Step #0 - "Install requirements": Downloading uv (25.9MiB)
Step #0 - "Install requirements":  Downloaded uv
Step #0 - "Install requirements": Prepared 1 package in 533ms
Step #0 - "Install requirements": warning: Failed to hardlink files; falling back to full copy. This may lead to degraded performance.
Step #0 - "Install requirements":          If the cache and target directories are on different filesystems, hardlinking may not be supported.
Step #0 - "Install requirements":          If this is intentional, set `export UV_LINK_MODE=copy` or use `--link-mode=copy` to suppress this warning.
Step #0 - "Install requirements": Installed 1 package in 65ms
Step #0 - "Install requirements":  + uv==0.11.28
Step #0 - "Install requirements": Using Python 3.14.6 environment at: /workspace/venv
Step #0 - "Install requirements": Resolved 88 packages in 2.32s
Step #0 - "Install requirements":    Building toolbox-core @ file:///workspace/packages/toolbox-core
Step #0 - "Install requirements": Downloading pygments (1.2MiB)
Step #0 - "Install requirements": Downloading ast-serialize (1.2MiB)
Step #0 - "Install requirements": Downloading cryptography (4.5MiB)
Step #0 - "Install requirements": Downloading pydantic-core (2.0MiB)
Step #0 - "Install requirements": Downloading grpcio (6.6MiB)
Step #0 - "Install requirements": Downloading black (1.8MiB)
Step #0 - "Install requirements": Downloading jedi (4.7MiB)
Step #0 - "Install requirements": Downloading aiohttp (1.7MiB)
Step #0 - "Install requirements": Downloading mypy (14.3MiB)
Step #0 - "Install requirements":       Built toolbox-core @ file:///workspace/packages/toolbox-core
Step #0 - "Install requirements":  Downloaded ast-serialize
Step #0 - "Install requirements":  Downloaded pydantic-core
Step #0 - "Install requirements":  Downloaded aiohttp
Step #0 - "Install requirements":  Downloaded black
Step #0 - "Install requirements":  Downloaded grpcio
Step #0 - "Install requirements":  Downloaded cryptography
Step #0 - "Install requirements":  Downloaded pygments
Step #0 - "Install requirements":  Downloaded mypy
Step #0 - "Install requirements":  Downloaded jedi
Step #0 - "Install requirements":    Building numpy==1.26.4
Step #0 - "Install requirements":       Built numpy==1.26.4
Step #0 - "Install requirements": Prepared 88 packages in 8m 47s
Step #0 - "Install requirements": warning: Failed to hardlink files; falling back to full copy. This may lead to degraded performance.
Step #0 - "Install requirements":          If the cache and target directories are on different filesystems, hardlinking may not be supported.
Step #0 - "Install requirements":          If this is intentional, set `export UV_LINK_MODE=copy` or use `--link-mode=copy` to suppress this warning.
Step #0 - "Install requirements": Installed 88 packages in 1.02s
Step #0 - "Install requirements":  + aiohappyeyeballs==2.7.1
Step #0 - "Install requirements":  + aiohttp==3.14.1
Step #0 - "Install requirements":  + aioresponses==0.7.8
Step #0 - "Install requirements":  + aiosignal==1.4.0
Step #0 - "Install requirements":  + annotated-types==0.7.0
Step #0 - "Install requirements":  + ast-serialize==0.6.0
Step #0 - "Install requirements":  + asttokens==3.0.1
Step #0 - "Install requirements":  + attrs==26.1.0
Step #0 - "Install requirements":  + black==26.5.1
Step #0 - "Install requirements":  + certifi==2026.6.17
Step #0 - "Install requirements":  + cffi==2.1.0
Step #0 - "Install requirements":  + charset-normalizer==3.4.9
Step #0 - "Install requirements":  + click==8.4.2
Step #0 - "Install requirements":  + coverage==7.15.0
Step #0 - "Install requirements":  + cryptography==49.0.0
Step #0 - "Install requirements":  + decorator==5.3.1
Step #0 - "Install requirements":  + deprecated==1.3.1
Step #0 - "Install requirements":  + executing==2.2.1
Step #0 - "Install requirements":  + frozenlist==1.8.0
Step #0 - "Install requirements":  + google-api-core==2.31.0
Step #0 - "Install requirements":  + google-auth==2.55.2
Step #0 - "Install requirements":  + google-cloud-core==2.6.0
Step #0 - "Install requirements":  + google-cloud-secret-manager==2.28.0
Step #0 - "Install requirements":  + google-cloud-storage==3.10.1
Step #0 - "Install requirements":  + google-crc32c==1.8.0
Step #0 - "Install requirements":  + google-resumable-media==2.10.0
Step #0 - "Install requirements":  + googleapis-common-protos==1.75.0
Step #0 - "Install requirements":  + grpc-google-iam-v1==0.14.4
Step #0 - "Install requirements":  + grpcio==1.82.1
Step #0 - "Install requirements":  + grpcio-status==1.81.1
Step #0 - "Install requirements":  + idna==3.18
Step #0 - "Install requirements":  + importlib-metadata==8.7.1
Step #0 - "Install requirements":  + iniconfig==2.3.0
Step #0 - "Install requirements":  + ipython==9.15.0
Step #0 - "Install requirements":  + ipython-pygments-lexers==1.1.1
Step #0 - "Install requirements":  + isort==8.0.1
Step #0 - "Install requirements":  + jedi==0.20.0
Step #0 - "Install requirements":  + librt==0.13.0
Step #0 - "Install requirements":  + matplotlib-inline==0.2.2
Step #0 - "Install requirements":  + multidict==6.7.1
Step #0 - "Install requirements":  + mypy==2.1.0
Step #0 - "Install requirements":  + mypy-extensions==1.1.0
Step #0 - "Install requirements":  + numpy==1.26.4
Step #0 - "Install requirements":  + opentelemetry-api==1.41.1
Step #0 - "Install requirements":  + opentelemetry-exporter-otlp==1.41.1
Step #0 - "Install requirements":  + opentelemetry-exporter-otlp-proto-common==1.41.1
Step #0 - "Install requirements":  + opentelemetry-exporter-otlp-proto-grpc==1.41.1
Step #0 - "Install requirements":  + opentelemetry-exporter-otlp-proto-http==1.41.1
Step #0 - "Install requirements":  + opentelemetry-proto==1.41.1
Step #0 - "Install requirements":  + opentelemetry-sdk==1.41.1
Step #0 - "Install requirements":  + opentelemetry-semantic-conventions==0.62b1
Step #0 - "Install requirements":  + packaging==26.2
Step #0 - "Install requirements":  + parso==0.8.7
Step #0 - "Install requirements":  + pathspec==1.1.1
Step #0 - "Install requirements":  + pexpect==4.9.0
Step #0 - "Install requirements":  + platformdirs==4.10.0
Step #0 - "Install requirements":  + pluggy==1.6.0
Step #0 - "Install requirements":  + prompt-toolkit==3.0.52
Step #0 - "Install requirements":  + propcache==0.5.2
Step #0 - "Install requirements":  + proto-plus==1.28.1
Step #0 - "Install requirements":  + protobuf==6.33.6
Step #0 - "Install requirements":  + psutil==7.2.2
Step #0 - "Install requirements":  + ptyprocess==0.7.0
Step #0 - "Install requirements":  + pure-eval==0.2.3
Step #0 - "Install requirements":  + pyasn1==0.6.4
Step #0 - "Install requirements":  + pyasn1-modules==0.4.2
Step #0 - "Install requirements":  + pycparser==3.0
Step #0 - "Install requirements":  + pydantic==2.13.4
Step #0 - "Install requirements":  + pydantic-core==2.46.4
Step #0 - "Install requirements":  + pygments==2.20.0
Step #0 - "Install requirements":  + pytest==9.0.3
Step #0 - "Install requirements":  + pytest-aioresponses==0.3.0
Step #0 - "Install requirements":  + pytest-asyncio==1.4.0
Step #0 - "Install requirements":  + pytest-cov==7.1.0
Step #0 - "Install requirements":  + pytest-mock==3.15.1
Step #0 - "Install requirements":  + pytokens==0.4.1
Step #0 - "Install requirements":  + requests==2.34.2
Step #0 - "Install requirements":  + stack-data==0.6.3
Step #0 - "Install requirements":  + tokenize-rt==6.2.0
Step #0 - "Install requirements":  + toolbox-core==1.1.0 (from file:///workspace/packages/toolbox-core)
Step #0 - "Install requirements":  + traitlets==5.15.1
Step #0 - "Install requirements":  + typing-extensions==4.16.0
Step #0 - "Install requirements":  + typing-inspection==0.4.2
Step #0 - "Install requirements":  + urllib3==2.7.0
Step #0 - "Install requirements":  + wcwidth==0.8.2
Step #0 - "Install requirements":  + wrapt==2.2.2
Step #0 - "Install requirements":  + yarl==1.24.2
Step #0 - "Install requirements":  + zipp==4.1.0
Step #0 - "Install requirements": Using Python 3.14.6 environment at: /workspace/venv
Step #0 - "Install requirements": Resolved 26 packages in 125ms
Step #0 - "Install requirements": Prepared 1 package in 62ms
Step #0 - "Install requirements": Uninstalled 1 package in 1ms
Step #0 - "Install requirements": warning: Failed to hardlink files; falling back to full copy. This may lead to degraded performance.
Step #0 - "Install requirements":          If the cache and target directories are on different filesystems, hardlinking may not be supported.
Step #0 - "Install requirements":          If this is intentional, set `export UV_LINK_MODE=copy` or use `--link-mode=copy` to suppress this warning.
Step #0 - "Install requirements": Installed 1 package in 9ms
Step #0 - "Install requirements":  - google-auth==2.55.2
Step #0 - "Install requirements":  + google-auth==2.53.0
Finished Step #0 - "Install requirements"
Starting Step #1 - "Run integration tests"
Step #1 - "Run integration tests": Already have image (with digest): python:3.14
Step #1 - "Run integration tests": ============================= test session starts ==============================
Step #1 - "Run integration tests": platform linux -- Python 3.14.6, pytest-9.0.3, pluggy-1.6.0
Step #1 - "Run integration tests": rootdir: /workspace/packages/toolbox-core
Step #1 - "Run integration tests": configfile: pyproject.toml
Step #1 - "Run integration tests": plugins: cov-7.1.0, aioresponses-0.3.0, mock-3.15.1, asyncio-1.4.0
Step #1 - "Run integration tests": asyncio: mode=Mode.STRICT, debug=False, asyncio_default_fixture_loop_scope=None, asyncio_default_test_loop_scope=function
Step #1 - "Run integration tests": collected 887 items
Step #1 - "Run integration tests": 
Step #1 - "Run integration tests": tests/mcp_transport/test_base.py ...................                     [  2%]
Step #1 - "Run integration tests": tests/mcp_transport/test_telemetry.py .................................. [  5%]
Step #1 - "Run integration tests": ...........                                                              [  7%]
Step #1 - "Run integration tests": tests/mcp_transport/test_v20241105.py .................................. [ 11%]
Step #1 - "Run integration tests": ............                                                             [ 12%]
Step #1 - "Run integration tests": tests/mcp_transport/test_v20250326.py .................................. [ 16%]
Step #1 - "Run integration tests": ............                                                             [ 17%]
Step #1 - "Run integration tests": tests/mcp_transport/test_v20250618.py .................................. [ 21%]
Step #1 - "Run integration tests": ................                                                         [ 23%]
Step #1 - "Run integration tests": tests/mcp_transport/test_v20251125.py .................................. [ 27%]
Step #1 - "Run integration tests": ..............                                                           [ 28%]
Step #1 - "Run integration tests": tests/mcp_transport/test_v20260618.py ..........................         [ 31%]
Step #1 - "Run integration tests": tests/test_auth_methods.py ..........                                    [ 32%]
Step #1 - "Run integration tests": tests/test_client.py .................................                   [ 36%]
Step #1 - "Run integration tests": tests/test_e2e.py ...................................                    [ 40%]
Step #1 - "Run integration tests": tests/test_e2e_mcp.py .................................................. [ 45%]
Step #1 - "Run integration tests": ........................................................................ [ 54%]
Step #1 - "Run integration tests": ................................................                         [ 59%]
Step #1 - "Run integration tests": tests/test_sync_e2e.py ..............                                    [ 61%]
Step #1 - "Run integration tests": tests/test_e2e.py ...................................                    [ 65%]
Step #1 - "Run integration tests": tests/test_e2e_mcp.py .................................................. [ 70%]
Step #1 - "Run integration tests": ........................................................................ [ 78%]
Step #1 - "Run integration tests": ................................................                         [ 84%]
Step #1 - "Run integration tests": tests/test_sync_e2e.py ..............                                    [ 85%]
Step #1 - "Run integration tests": tests/test_protocol.py .........................                         [ 88%]
Step #1 - "Run integration tests": tests/test_sync_client.py ................                               [ 90%]
Step #1 - "Run integration tests": tests/test_sync_tool.py ....................                             [ 92%]
Step #1 - "Run integration tests": tests/test_tool.py ....................................                  [ 96%]
Step #1 - "Run integration tests": tests/test_utils.py .............................                        [100%]
Step #1 - "Run integration tests": 
Step #1 - "Run integration tests": =============================== warnings summary ===============================
Step #1 - "Run integration tests": tests/test_tool.py:550
Step #1 - "Run integration tests":   /workspace/packages/toolbox-core/tests/test_tool.py:550: SyntaxWarning: "\(" is an invalid escape sequence. Such sequences will not work in the future. Did you mean "\\("? A raw string is also an option.
Step #1 - "Run integration tests":     expected_error_message = "Authentication source\(s\) \`unused-auth-service\` unused by tool \`sample_tool\`."
Step #1 - "Run integration tests": 
Step #1 - "Run integration tests": tests/test_client.py: 9 warnings
Step #1 - "Run integration tests": tests/test_e2e.py: 12 warnings
Step #1 - "Run integration tests": tests/test_e2e_mcp.py: 60 warnings
Step #1 - "Run integration tests": tests/test_sync_e2e.py: 10 warnings
Step #1 - "Run integration tests": tests/test_sync_client.py: 4 warnings
Step #1 - "Run integration tests":   /workspace/packages/toolbox-core/src/toolbox_core/utils.py:56: UserWarning: This connection is using HTTP. To prevent credential exposure, please ensure all communication is sent over HTTPS.
Step #1 - "Run integration tests":     warnings.warn(
Step #1 - "Run integration tests": 
Step #1 - "Run integration tests": tests/test_client.py: 9 warnings
Step #1 - "Run integration tests": tests/test_e2e.py: 14 warnings
Step #1 - "Run integration tests": tests/test_e2e_mcp.py: 70 warnings
Step #1 - "Run integration tests": tests/test_sync_e2e.py: 12 warnings
Step #1 - "Run integration tests": tests/test_sync_client.py: 4 warnings
Step #1 - "Run integration tests": tests/test_tool.py: 19 warnings
Step #1 - "Run integration tests": tests/test_utils.py: 7 warnings
Step #1 - "Run integration tests":   /workspace/packages/toolbox-core/src/toolbox_core/utils.py:165: DeprecationWarning: 'asyncio.iscoroutinefunction' is deprecated and slated for removal in Python 3.16; use inspect.iscoroutinefunction() instead
Step #1 - "Run integration tests":     if asyncio.iscoroutinefunction(source):
Step #1 - "Run integration tests": 
Step #1 - "Run integration tests": tests/test_sync_client.py::TestSyncClientLifecycle::test_load_tool_raises_if_loop_or_thread_none
Step #1 - "Run integration tests":   /workspace/packages/toolbox-core/tests/test_sync_client.py:342: RuntimeWarning: coroutine 'ToolboxClient.load_tool' was never awaited
Step #1 - "Run integration tests":     with pytest.raises(
Step #1 - "Run integration tests":   Enable tracemalloc to get traceback where the object was allocated.
Step #1 - "Run integration tests":   See https://docs.pytest.org/en/stable/how-to/capture-warnings.html#resource-warnings for more info.
Step #1 - "Run integration tests": 
Step #1 - "Run integration tests": tests/test_sync_client.py::TestSyncClientLifecycle::test_load_tool_raises_if_loop_or_thread_none
Step #1 - "Run integration tests":   /workspace/packages/toolbox-core/tests/test_sync_client.py:351: RuntimeWarning: coroutine 'ToolboxClient.load_toolset' was never awaited
Step #1 - "Run integration tests":     with pytest.raises(
Step #1 - "Run integration tests":   Enable tracemalloc to get traceback where the object was allocated.
Step #1 - "Run integration tests":   See https://docs.pytest.org/en/stable/how-to/capture-warnings.html#resource-warnings for more info.
Step #1 - "Run integration tests": 
Step #1 - "Run integration tests": -- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
Step #1 - "Run integration tests": ================================ tests coverage ================================
Step #1 - "Run integration tests": _______________ coverage: platform linux, python 3.14.6-final-0 ________________
Step #1 - "Run integration tests": 
Step #1 - "Run integration tests": Name                                                Stmts   Miss  Cover
Step #1 - "Run integration tests": -----------------------------------------------------------------------
Step #1 - "Run integration tests": src/toolbox_core/__init__.py                            4      0   100%
Step #1 - "Run integration tests": src/toolbox_core/auth_methods.py                       59      2    97%
Step #1 - "Run integration tests": src/toolbox_core/client.py                            149      4    97%
Step #1 - "Run integration tests": src/toolbox_core/exceptions.py                          6      0   100%
Step #1 - "Run integration tests": src/toolbox_core/itransport.py                         20      5    75%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/__init__.py              6      0   100%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/telemetry.py           153     14    91%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/transport_base.py      107      3    97%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20241105/mcp.py       158     21    87%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20241105/types.py      67      1    99%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20250326/mcp.py       170     25    85%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20250326/types.py      67      1    99%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20250618/mcp.py       160     18    89%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20250618/types.py      67      1    99%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20251125/mcp.py       160     21    87%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20251125/types.py      67      1    99%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20260618/mcp.py       136     17    88%
Step #1 - "Run integration tests": src/toolbox_core/mcp_transport/v20260618/types.py      60      1    98%
Step #1 - "Run integration tests": src/toolbox_core/protocol.py                           68      0   100%
Step #1 - "Run integration tests": src/toolbox_core/sync_client.py                        45      0   100%
Step #1 - "Run integration tests": src/toolbox_core/sync_tool.py                          67      0   100%
Step #1 - "Run integration tests": src/toolbox_core/tool.py                              119      6    95%
Step #1 - "Run integration tests": src/toolbox_core/utils.py                              61      0   100%
Step #1 - "Run integration tests": src/toolbox_core/version.py                             1      0   100%
Step #1 - "Run integration tests": -----------------------------------------------------------------------
Step #1 - "Run integration tests": TOTAL                                                1977    141    93%
Step #1 - "Run integration tests": Required test coverage of 90% reached. Total coverage: 92.87%
Step #1 - "Run integration tests": ====================== 887 passed, 233 warnings in 24.98s ======================
Finished Step #1 - "Run integration tests"
PUSH
DONE

Build Log: https://console.cloud.google.com/logs/viewer?advancedFilter=resource.type%3D%22build%22+AND+resource.labels.build_id%3D%222507945d-468a-4e74-8b7b-2fb7640fc5aa%22+AND+resource.labels.build_trigger_id%3D%223acd6d5e-75d6-41f9-82f9-f667825297d1%22&project=toolbox-testing-438616