From 3cf0feef0259fc841b18c015a40202d5dc885740 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 12 Oct 2026 11:52:26 +0000
Subject: [PATCH 1/4] Bump the python-security group across 1 directory with 2
 updates

Bumps the python-security group with 2 updates in the / directory: [datamodel-code-generator](https://github.com/datamodel-code-generator/datamodel-code-generator) and [httpx2](https://github.com/pydantic/httpx2).


Updates `datamodel-code-generator` from 0.57.0 to 0.81.0
- [Release notes](https://github.com/datamodel-code-generator/datamodel-code-generator/releases)
- [Changelog](https://github.com/datamodel-code-generator/datamodel-code-generator/blob/main/CHANGELOG.md)
- [Commits](https://github.com/datamodel-code-generator/datamodel-code-generator/compare/0.57.0...0.81.0)

Updates `httpx2` from 2.10.0 to 2.12.0
- [Release notes](https://github.com/pydantic/httpx2/releases)
- [Changelog](https://github.com/pydantic/httpx2/blob/main/src/httpx2/CHANGELOG.md)
- [Commits](https://github.com/pydantic/httpx2/compare/v2.10.0...v2.12.0)

---
updated-dependencies:
- dependency-name: datamodel-code-generator
  dependency-version: 0.64.0
  dependency-type: direct:development
  dependency-group: python-security
- dependency-name: httpx2
  dependency-version: 2.12.0
  dependency-type: direct:production
  dependency-group: python-security
...

Signed-off-by: dependabot[bot] <support@github.com>
---
 pyproject.toml |   2 +-
 uv.lock        | 113 ++++++++++++++++++-------------------------------
 2 files changed, 42 insertions(+), 73 deletions(-)

diff --git a/pyproject.toml b/pyproject.toml
index 75322050e8..443efa440f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -113,7 +113,7 @@ docs = [
 # of the default groups so no other environment installs the client (or the
 # legacy httpx it depends on). See i18n/README.md.
 translate = ["anthropic>=0.121.0"]
-codegen = ["datamodel-code-generator==0.57.0"]
+codegen = ["datamodel-code-generator==0.81.0"]
 
 [build-system]
 requires = ["hatchling", "uv-dynamic-versioning"]
diff --git a/uv.lock b/uv.lock
index 7e173bc269..170892a633 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1,5 +1,5 @@
 version = 1
-revision = 5
+revision = 3
 requires-python = ">=3.10"
 resolution-markers = [
     "python_full_version >= '3.15' and sys_platform == 'win32'",
@@ -67,8 +67,7 @@ dependencies = [
     { name = "pydantic", version = "2.12.5", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.15'" },
     { name = "pydantic", version = "2.14.1", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.15'" },
     { name = "sniffio" },
-    { name = "typing-extensions", version = "4.15.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.15'" },
-    { name = "typing-extensions", version = "4.16.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.15'" },
+    { name = "typing-extensions" },
 ]
 sdist = { url = "https://files.pythonhosted.org/packages/0f/ca/3cb2c20ee729736fbd4546d5d8b67e818288529fe70cb7a80dbf80aef70b/anthropic-0.121.0.tar.gz", hash = "sha256:e79d6e08ab3376602fc9a70d4d5ea3540817c76cf7e16658bed790834e1833d6", size = 1013292, upload-time = "2026-08-07T17:11:07.241Z" }
 wheels = [
@@ -82,7 +81,7 @@ source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "exceptiongroup", marker = "python_full_version < '3.11'" },
     { name = "idna" },
-    { name = "typing-extensions", version = "4.15.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.13'" },
+    { name = "typing-extensions", marker = "python_full_version < '3.13'" },
 ]
 sdist = { url = "https://files.pythonhosted.org/packages/61/cc/a381afa6efea9f496eff839d4a6a1aed3bfafc7b3ab4b0d1b243a12573dd/anyio-4.14.2.tar.gz", hash = "sha256:cfa139f3ed1a23ee8f88a145ddb5ac7605b8bbfd8592baacd7ce3d8bb4313c7f", size = 260176, upload-time = "2026-07-12T20:29:07.082Z" }
 wheels = [
@@ -128,7 +127,7 @@ dependencies = [
     { name = "platformdirs" },
     { name = "pytokens" },
     { name = "tomli", marker = "python_full_version < '3.11'" },
-    { name = "typing-extensions", version = "4.15.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.11'" },
+    { name = "typing-extensions", marker = "python_full_version < '3.11'" },
 ]
 sdist = { url = "https://files.pythonhosted.org/packages/e1/c5/61175d618685d42b005847464b8fb4743a67b1b8fdb75e50e5a96c31a27a/black-26.3.1.tar.gz", hash = "sha256:2c50f5063a9641c7eed7795014ba37b0f5fa227f3d408b968936e24bc0566b07", size = 666155, upload-time = "2026-03-12T03:36:03.593Z" }
 wheels = [
@@ -481,7 +480,7 @@ version = "50.0.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "cffi", marker = "platform_python_implementation != 'PyPy'" },
-    { name = "typing-extensions", version = "4.15.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.11'" },
+    { name = "typing-extensions", marker = "python_full_version < '3.11'" },
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 sdist = { url = "https://files.pythonhosted.org/packages/de/41/6cbdcf9142d00fe82836fbb51e503e58088575cf7a0fe1dbff6695bf0840/cryptography-50.0.0.tar.gz", hash = "sha256:eeac2acb5a20ed25e0ad6d1df9891a520b78b404266b6d11778f25d5d691a6c9", size = 880201, upload-time = "2026-07-31T14:25:10.11Z" }
 wheels = [
@@ -534,23 +533,24 @@ wheels = [
 
 [[package]]
 name = "datamodel-code-generator"
-version = "0.57.0"
+version = "0.81.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "argcomplete" },
-    { name = "black" },
+    { name = "black", marker = "sys_platform != 'emscripten'" },
     { name = "genson" },
     { name = "inflect" },
-    { name = "isort" },
+    { name = "isort", marker = "sys_platform != 'emscripten'" },
     { name = "jinja2" },
     { name = "pydantic", version = "2.12.5", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.15'" },
     { name = "pydantic", version = "2.14.1", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.15'" },
     { name = "pyyaml" },
     { name = "tomli", marker = "python_full_version < '3.11'" },
+    { name = "typing-extensions" },
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+sdist = { url = "https://files.pythonhosted.org/packages/41/a1/87deb406ca27b0ae25cda946940208dfe2a2953b7fef20f8a968746e6b36/datamodel_code_generator-0.81.0.tar.gz", hash = "sha256:3b4d1639cc7430f7e34fddc3827fb5d3eb0a4f5394750890c46ba2a9d56e3ee2", size = 2912162, upload-time = "2026-09-14T00:05:20.43Z" }
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+    { url = "https://files.pythonhosted.org/packages/84/30/acea9e8d4c5e7819c10b25581accfa805e5368ec564fc210c8f4c4ffd666/datamodel_code_generator-0.81.0-py3-none-any.whl", hash = "sha256:82ff0c295685065a83c530ce42ec03fc75b7ca01e72083eb8232d68f7637013a", size = 721675, upload-time = "2026-09-14T00:05:18.451Z" },
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 [[package]]
@@ -594,7 +594,7 @@ name = "exceptiongroup"
 version = "1.3.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "typing-extensions", version = "4.15.0", source = { registry = "https://pypi.org/simple" } },
+    { name = "typing-extensions" },
 ]
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 wheels = [
@@ -691,15 +691,15 @@ wheels = [
 
 [[package]]
 name = "httpcore2"
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+version = "2.12.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "h11" },
     { name = "truststore" },
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+sdist = { url = "https://files.pythonhosted.org/packages/be/ad/f4f0e57345f1870f3e8cb624e058d7eca6e5a27d33bcc3311d9b618734cd/httpcore2-2.12.0.tar.gz", hash = "sha256:9293522bba0aa7c4c8e9e3f040c16575bd8868e155a77fa30c7a9085a5eae648", size = 67548, upload-time = "2026-08-18T13:22:08.211Z" }
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+    { url = "https://files.pythonhosted.org/packages/d2/74/d370e55600d9bcfa0d9794b0166126d49291a3d2b20c268fc98c453a4948/httpcore2-2.12.0-py3-none-any.whl", hash = "sha256:7e04258ce01013d7d615e5b910a3b27fac937d7a95038227e79652b4ba3b4ceb", size = 83074, upload-time = "2026-08-18T13:22:05.854Z" },
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 [[package]]
@@ -719,7 +719,7 @@ wheels = [
 
 [[package]]
 name = "httpx2"
-version = "2.10.0"
+version = "2.12.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "anyio", marker = "sys_platform != 'emscripten'" },
@@ -727,11 +727,11 @@ dependencies = [
     { name = "httpx2-jsfetch", marker = "python_full_version >= '3.12' and sys_platform == 'emscripten'" },
     { name = "idna" },
     { name = "truststore", marker = "sys_platform != 'emscripten'" },
-    { name = "typing-extensions", version = "4.15.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.13'" },
+    { name = "typing-extensions", marker = "python_full_version < '3.13'" },
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+    { url = "https://files.pythonhosted.org/packages/c8/95/411ba65569158e862368917aaf56597f3e5fa3b91b0502919638465a08f3/httpx2-2.12.0-py3-none-any.whl", hash = "sha256:cc8b6eecb8661c146b8f89a60e97456ee086e91a784ed31ac450c3a9e613dd36", size = 95427, upload-time = "2026-08-18T13:22:06.834Z" },
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 [[package]]
@@ -962,8 +962,7 @@ dependencies = [
     { name = "protobuf" },
     { name = "rich" },
     { name = "tomli", marker = "python_full_version < '3.11'" },
-    { name = "typing-extensions", version = "4.15.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.15'" },
-    { name = "typing-extensions", version = "4.16.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.15'" },
+    { name = "typing-extensions" },
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@@ -1052,7 +1051,6 @@ wheels = [
 [[package]]
 name = "mcp"
 source = { editable = "." }
-default-groups = ["dev", "docs"]
 dependencies = [
     { name = "anyio" },
     { name = "httpx2" },
@@ -1067,8 +1065,7 @@ dependencies = [
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     { name = "sse-starlette" },
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-    { name = "typing-extensions", version = "4.16.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.15'" },
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@@ -1148,7 +1145,7 @@ requires-dist = [
 provides-extras = ["cli", "rich"]
 
 [package.metadata.requires-dev]
-codegen = [{ name = "datamodel-code-generator", specifier = "==0.57.0" }]
+codegen = [{ name = "datamodel-code-generator", specifier = "==0.81.0" }]
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     { name = "blockbuster", marker = "python_full_version >= '3.15'", specifier = ">=1.5.29" },
@@ -1636,8 +1633,7 @@ source = { editable = "src/mcp-types" }
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-    { name = "typing-extensions", version = "4.16.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.15'" },
+    { name = "typing-extensions" },
 ]
 
 [package.metadata]
@@ -1742,7 +1738,7 @@ dependencies = [
     { name = "griffelib" },
     { name = "mkdocs-autorefs" },
     { name = "mkdocstrings" },
-    { name = "typing-extensions", version = "4.15.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.11'" },
+    { name = "typing-extensions", marker = "python_full_version < '3.11'" },
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@@ -1782,8 +1778,7 @@ version = "1.39.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "importlib-metadata" },
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-    { name = "typing-extensions", version = "4.16.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.15'" },
+    { name = "typing-extensions" },
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@@ -1813,8 +1808,7 @@ dependencies = [
     { name = "opentelemetry-proto" },
     { name = "opentelemetry-sdk" },
     { name = "requests" },
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-    { name = "typing-extensions", version = "4.16.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.15'" },
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@@ -1855,8 +1849,7 @@ source = { registry = "https://pypi.org/simple" }
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     { name = "opentelemetry-semantic-conventions" },
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-    { name = "typing-extensions", version = "4.16.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.15'" },
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@@ -1869,8 +1862,7 @@ version = "0.60b1"
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-    { name = "typing-extensions", version = "4.16.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.15'" },
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+    { name = "typing-extensions" },
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 dependencies = [
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-    { name = "typing-extensions", version = "4.16.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.15'" },
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-    { name = "typing-extensions", version = "4.15.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.13'" },
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-    { name = "typing-extensions", version = "4.16.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.15'" },
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From 054906a18800fb20a35461def78660bab9f463c7 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 12 Oct 2026 12:19:26 +0000
Subject: [PATCH 2/4] Bump the python-security group across 1 directory with 2
 updates

Bumps the python-security group with 2 updates in the / directory: [datamodel-code-generator](https://github.com/datamodel-code-generator/datamodel-code-generator) and [httpx2](https://github.com/pydantic/httpx2).


Updates `datamodel-code-generator` from 0.57.0 to 0.81.0
- [Release notes](https://github.com/datamodel-code-generator/datamodel-code-generator/releases)
- [Changelog](https://github.com/datamodel-code-generator/datamodel-code-generator/blob/main/CHANGELOG.md)
- [Commits](https://github.com/datamodel-code-generator/datamodel-code-generator/compare/0.57.0...0.81.0)

Updates `httpx2` from 2.10.0 to 2.12.0
- [Release notes](https://github.com/pydantic/httpx2/releases)
- [Changelog](https://github.com/pydantic/httpx2/blob/main/src/httpx2/CHANGELOG.md)
- [Commits](https://github.com/pydantic/httpx2/compare/v2.10.0...v2.12.0)

---
updated-dependencies:
- dependency-name: datamodel-code-generator
  dependency-version: 0.64.0
  dependency-type: direct:development
  dependency-group: python-security
- dependency-name: httpx2
  dependency-version: 2.12.0
  dependency-type: direct:production
  dependency-group: python-security
...

Signed-off-by: dependabot[bot] <support@github.com>
---
 pyproject.toml |   2 +-
 uv.lock        | 111 ++++++++++++++++++-------------------------------
 2 files changed, 41 insertions(+), 72 deletions(-)

diff --git a/pyproject.toml b/pyproject.toml
index 17cfc50dba..6d7626d79b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -111,7 +111,7 @@ docs = [
 # of the default groups so no other environment installs the client (or the
 # legacy httpx it depends on). See i18n/README.md.
 translate = ["anthropic>=0.121.0"]
-codegen = ["datamodel-code-generator==0.57.0"]
+codegen = ["datamodel-code-generator==0.81.0"]
 
 [build-system]
 requires = ["hatchling", "uv-dynamic-versioning"]
diff --git a/uv.lock b/uv.lock
index f8dfba03b2..25dd198fae 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1,13 +1,13 @@
 version = 1
-revision = 5
+revision = 3
 requires-python = ">=3.11"
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     "python_full_version >= '3.15' and sys_platform == 'win32'",
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     "python_full_version == '3.14.*' and sys_platform != 'win32'",
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     "python_full_version >= '3.12' and python_full_version < '3.14' and sys_platform == 'emscripten'",
+    "python_full_version < '3.14' and sys_platform == 'win32'",
     "(python_full_version < '3.12' and sys_platform == 'emscripten') or (python_full_version < '3.14' and sys_platform != 'emscripten' and sys_platform != 'win32')",
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@@ -67,8 +67,7 @@ dependencies = [
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     { name = "pydantic", version = "2.14.1", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.15'" },
     { name = "sniffio" },
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-    { name = "typing-extensions", version = "4.16.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.15'" },
+    { name = "typing-extensions" },
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 sdist = { url = "https://files.pythonhosted.org/packages/0f/ca/3cb2c20ee729736fbd4546d5d8b67e818288529fe70cb7a80dbf80aef70b/anthropic-0.121.0.tar.gz", hash = "sha256:e79d6e08ab3376602fc9a70d4d5ea3540817c76cf7e16658bed790834e1833d6", size = 1013292, upload-time = "2026-08-07T17:11:07.241Z" }
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-    { name = "typing-extensions", version = "4.15.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.13'" },
+    { name = "typing-extensions", marker = "python_full_version < '3.13'" },
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     "python_full_version >= '3.12' and python_full_version < '3.14' and sys_platform == 'emscripten'",
+    "python_full_version < '3.14' and sys_platform == 'win32'",
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 dependencies = [
@@ -490,22 +489,23 @@ wheels = [
 
 [[package]]
 name = "datamodel-code-generator"
-version = "0.57.0"
+version = "0.81.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "argcomplete" },
-    { name = "black" },
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     { name = "inflect" },
-    { name = "isort" },
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     { name = "pydantic", version = "2.14.1", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.15'" },
     { name = "pyyaml" },
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+sdist = { url = "https://files.pythonhosted.org/packages/41/a1/87deb406ca27b0ae25cda946940208dfe2a2953b7fef20f8a968746e6b36/datamodel_code_generator-0.81.0.tar.gz", hash = "sha256:3b4d1639cc7430f7e34fddc3827fb5d3eb0a4f5394750890c46ba2a9d56e3ee2", size = 2912162, upload-time = "2026-09-14T00:05:20.43Z" }
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 [[package]]
@@ -634,15 +634,15 @@ wheels = [
 
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+version = "2.12.0"
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-    "python_full_version >= '3.15' and sys_platform != 'win32'",
-]
 sdist = { url = "https://files.pythonhosted.org/packages/f6/cc/6253133b5bb138fc3306cebfbda2c520f545d36b5be2c7255cc528bb45d6/typing_extensions-4.16.0.tar.gz", hash = "sha256:dc983d19a509c94dba722ee6abd33940f7c05a89e243c47e907eb4db6f1a43e5", size = 113555, upload-time = "2026-07-02T08:40:05.92Z" }
 wheels = [
     { url = "https://files.pythonhosted.org/packages/49/d3/b8441a820a491ddfc024b0b0cf0393375b75ea13866d9c66727e54c2fc80/typing_extensions-4.16.0-py3-none-any.whl", hash = "sha256:481caa481374e813c1b176ada14e97f1f67a4539ce9cfeb3f350d78d6370c2e8", size = 45571, upload-time = "2026-07-02T08:40:04.659Z" },
@@ -2937,12 +2906,12 @@ source = { registry = "https://pypi.org/simple" }
 resolution-markers = [
     "python_full_version == '3.14.*' and sys_platform == 'win32'",
     "python_full_version == '3.14.*' and sys_platform != 'win32'",
-    "python_full_version < '3.14' and sys_platform == 'win32'",
     "python_full_version >= '3.12' and python_full_version < '3.14' and sys_platform == 'emscripten'",
+    "python_full_version < '3.14' and sys_platform == 'win32'",
     "(python_full_version < '3.12' and sys_platform == 'emscripten') or (python_full_version < '3.14' and sys_platform != 'emscripten' and sys_platform != 'win32')",
 ]
 dependencies = [
-    { name = "typing-extensions", version = "4.15.0", source = { registry = "https://pypi.org/simple" } },
+    { name = "typing-extensions" },
 ]
 sdist = { url = "https://files.pythonhosted.org/packages/55/e3/70399cb7dd41c10ac53367ae42139cf4b1ca5f36bb3dc6c9d33acdb43655/typing_inspection-0.4.2.tar.gz", hash = "sha256:ba561c48a67c5958007083d386c3295464928b01faa735ab8547c5692e87f464", size = 75949, upload-time = "2025-10-01T02:14:41.687Z" }
 wheels = [
@@ -2958,7 +2927,7 @@ resolution-markers = [
     "python_full_version >= '3.15' and sys_platform != 'win32'",
 ]
 dependencies = [
-    { name = "typing-extensions", version = "4.16.0", source = { registry = "https://pypi.org/simple" } },
+    { name = "typing-extensions" },
 ]
 sdist = { url = "https://files.pythonhosted.org/packages/a3/26/b09b8010994eccc3c09092e6b34058f36a460eea2d4c3e8b910c695975a0/typing_inspection-0.4.4.tar.gz", hash = "sha256:547274fa6b0a561ccf549cc9524b999a578e737d015d8709d021f9d0d13bea47", size = 76928, upload-time = "2026-08-12T12:37:25.997Z" }
 wheels = [

From 69684292dbdeee0456d52b33d729d7ce247ba3c9 Mon Sep 17 00:00:00 2001
From: Marcelo Trylesinski <marcelotryle@gmail.com>
Date: Mon, 12 Oct 2026 14:24:00 +0200
Subject: [PATCH 3/4] Preserve lockfile metadata for the project uv version

---
 uv.lock | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/uv.lock b/uv.lock
index 25dd198fae..fd2dcb85f9 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1,5 +1,5 @@
 version = 1
-revision = 3
+revision = 5
 requires-python = ">=3.11"
 resolution-markers = [
     "python_full_version >= '3.15' and sys_platform == 'win32'",
@@ -968,6 +968,7 @@ wheels = [
 [[package]]
 name = "mcp"
 source = { editable = "." }
+default-groups = ["dev", "docs"]
 dependencies = [
     { name = "anyio" },
     { name = "httpx2" },

From 013ce5aad9be0696ce64de9800b7a0b616e7728f Mon Sep 17 00:00:00 2001
From: Marcelo Trylesinski <marcelotryle@gmail.com>
Date: Mon, 12 Oct 2026 14:32:41 +0200
Subject: [PATCH 4/4] Remove redundant extra-field annotations from generated
 models

---
 scripts/gen_surface_types.py                     | 10 +++-------
 src/mcp-types/mcp_types/_v2025_11_25/__init__.py | 12 ------------
 src/mcp-types/mcp_types/_v2026_07_28/__init__.py |  9 ---------
 tests/types/test_methods.py                      | 13 +++++++++++++
 4 files changed, 16 insertions(+), 28 deletions(-)

diff --git a/scripts/gen_surface_types.py b/scripts/gen_surface_types.py
index 3e25bcab86..d77eedc480 100644
--- a/scripts/gen_surface_types.py
+++ b/scripts/gen_surface_types.py
@@ -253,6 +253,9 @@ def build(entry: dict[str, str]) -> str:
         source = raw.read_text(encoding="utf-8")
 
     source = re.sub(r"\A# generated by datamodel-codegen:\n#[^\n]*\n", "", source)
+    # Explicit __annotations__ hides declared fields under Python 3.14's deferred annotations.
+    source = source.replace('    __annotations__ = {\n        "__pydantic_extra__": Dict[str, Any],\n    }\n', "")
+    source = source.replace(", Dict,", ",")
     # Keep named aliases only for recursive types; other aliases remain ordinary Python types and unions.
     for node in reversed(ast.parse(source).body):
         if not (
@@ -292,13 +295,6 @@ def build(entry: dict[str, str]) -> str:
     staging = TYPES_DIR / f"_staging_{version}.py"
     try:
         staging.write_text(source, encoding="utf-8")
-        subprocess.run(
-            [
-                "uv", "run", "--frozen", "ruff", "check", "--no-cache",
-                "--select", "F401,UP006,UP035", "--fix", "--unsafe-fixes", str(staging),
-            ],
-            cwd=REPO_ROOT, capture_output=True, check=True,
-        )  # fmt: skip
         subprocess.run(
             ["uv", "run", "--frozen", "ruff", "format", "--no-cache", str(staging)],
             cwd=REPO_ROOT, capture_output=True, check=True,
diff --git a/src/mcp-types/mcp_types/_v2025_11_25/__init__.py b/src/mcp-types/mcp_types/_v2025_11_25/__init__.py
index d5eb808703..5ffd15f0ec 100644
--- a/src/mcp-types/mcp_types/_v2025_11_25/__init__.py
+++ b/src/mcp-types/mcp_types/_v2025_11_25/__init__.py
@@ -394,9 +394,6 @@ class GetTaskPayloadResult(WireModel):
     model_config = ConfigDict(
         extra="allow",
     )
-    __annotations__ = {
-        "__pydantic_extra__": dict[str, Any],
-    }
     meta: Annotated[dict[str, Any] | None, Field(alias="_meta")] = None
     """
     See [General fields: `_meta`](https://modelcontextprotocol.io/specification/2025-11-25/basic/index#meta) for notes on `_meta` usage.
@@ -793,9 +790,6 @@ class Meta(WireModel):
     model_config = ConfigDict(
         extra="allow",
     )
-    __annotations__ = {
-        "__pydantic_extra__": dict[str, Any],
-    }
     progress_token: Annotated[ProgressToken | None, Field(alias="progressToken")] = None
     """
     If specified, the caller is requesting out-of-band progress notifications for this request (as represented by notifications/progress). The value of this parameter is an opaque token that will be attached to any subsequent notifications. The receiver is not obligated to provide these notifications.
@@ -953,9 +947,6 @@ class Result(WireModel):
     model_config = ConfigDict(
         extra="allow",
     )
-    __annotations__ = {
-        "__pydantic_extra__": dict[str, Any],
-    }
     meta: Annotated[dict[str, Any] | None, Field(alias="_meta")] = None
     """
     See [General fields: `_meta`](https://modelcontextprotocol.io/specification/2025-11-25/basic/index#meta) for notes on `_meta` usage.
@@ -2656,9 +2647,6 @@ class Data(WireModel):
     model_config = ConfigDict(
         extra="allow",
     )
-    __annotations__ = {
-        "__pydantic_extra__": dict[str, Any],
-    }
     elicitations: list[ElicitRequestURLParams]
 
 
diff --git a/src/mcp-types/mcp_types/_v2026_07_28/__init__.py b/src/mcp-types/mcp_types/_v2026_07_28/__init__.py
index b16270e0ff..869700f272 100644
--- a/src/mcp-types/mcp_types/_v2026_07_28/__init__.py
+++ b/src/mcp-types/mcp_types/_v2026_07_28/__init__.py
@@ -1055,9 +1055,6 @@ class InputSchema(WireModel):
     model_config = ConfigDict(
         extra="allow",
     )
-    __annotations__ = {
-        "__pydantic_extra__": dict[str, Any],
-    }
     schema_: Annotated[str | None, Field(alias="$schema")] = None
     type: Literal["object"]
 
@@ -1073,9 +1070,6 @@ class OutputSchema(WireModel):
     model_config = ConfigDict(
         extra="allow",
     )
-    __annotations__ = {
-        "__pydantic_extra__": dict[str, Any],
-    }
     schema_: Annotated[str | None, Field(alias="$schema")] = None
 
 
@@ -2028,9 +2022,6 @@ class Result(WireModel):
     model_config = ConfigDict(
         extra="allow",
     )
-    __annotations__ = {
-        "__pydantic_extra__": dict[str, Any],
-    }
     meta: Annotated[ResultMetaObject | None, Field(alias="_meta")] = None
     result_type: Annotated[str, Field(alias="resultType")]
     """
diff --git a/tests/types/test_methods.py b/tests/types/test_methods.py
index d38dfa0993..e93346b134 100644
--- a/tests/types/test_methods.py
+++ b/tests/types/test_methods.py
@@ -960,6 +960,19 @@ def test_serialize_server_result_preserves_open_type_extras():
     assert sieved["tools"][0]["_meta"] == nested_meta
 
 
+@pytest.mark.parametrize("input_schema", [{}, {"type": "array"}])
+def test_serialize_server_result_rejects_invalid_tool_input_schema(input_schema: dict[str, Any]) -> None:
+    """The 2026 spec requires a tool's input schema to declare `type="object"`, even though it allows extra keys."""
+    result = {
+        "tools": [{"name": "echo", "inputSchema": input_schema}],
+        "resultType": "complete",
+        "ttlMs": 0,
+        "cacheScope": "private",
+    }
+    with pytest.raises(pydantic.ValidationError):
+        methods.serialize_server_result("tools/list", "2026-07-28", result)
+
+
 def test_serialize_server_result_drops_top_level_server_info_on_discover_but_keeps_the_meta_stamp():
     """Server identity moved from the discover body to result `_meta` (spec PR #3002):
     the sieve drops the removed body key and preserves the `_meta` stamp."""