@@ -5503,6 +5503,17 @@
                     },
                     "documentation": "Title of the command, like `save`."
                 },
+                {
+                    "name": "tooltip",
+                    "type": {
+                        "kind": "base",
+                        "name": "string"
+                    },
+                    "optional": true,
+                    "documentation": "An optional tooltip.\n\n@since 3.18.0\n@proposed",
+                    "since": "3.18.0",
+                    "proposed": true
+                },
                 {
                     "name": "command",
                     "type": {
@@ -9328,6 +9339,20 @@
                     "optional": true,
                     "documentation": "CodeActionKinds that this server may return.\n\nThe list of kinds may be generic, such as `CodeActionKind.Refactor`, or the server\nmay list out every specific kind they provide."
                 },
+                {
+                    "name": "documentation",
+                    "type": {
+                        "kind": "array",
+                        "element": {
+                            "kind": "reference",
+                            "name": "CodeActionKindDocumentation"
+                        }
+                    },
+                    "optional": true,
+                    "documentation": "Static documentation for a class of code actions.\n\nDocumentation from the provider should be shown in the code actions menu if either:\n\n- Code actions of `kind` are requested by the editor. In this case, the editor will show the documentation that\n  most closely matches the requested code action kind. For example, if a provider has documentation for\n  both `Refactor` and `RefactorExtract`, when the user requests code actions for `RefactorExtract`,\n  the editor will use the documentation for `RefactorExtract` instead of the documentation for `Refactor`.\n\n- Any code actions of `kind` are returned by the provider.\n\nAt most one documentation entry should be shown per provider.\n\n@since 3.18.0\n@proposed",
+                    "since": "3.18.0",
+                    "proposed": true
+                },
                 {
                     "name": "resolveProvider",
                     "type": {
@@ -10452,7 +10477,7 @@
                             }
                         ]
                     },
-                    "documentation": "The label of this parameter information.\n\nEither a string or an inclusive start and exclusive end offsets within its containing\nsignature label. (see SignatureInformation.label). The offsets are based on a UTF-16\nstring representation as `Position` and `Range` does.\n\n*Note*: a label of type string should be a substring of its containing signature label.\nIts intended use case is to highlight the parameter label part in the `SignatureInformation.label`."
+                    "documentation": "The label of this parameter information.\n\nEither a string or an inclusive start and exclusive end offsets within its containing\nsignature label. (see SignatureInformation.label). The offsets are based on a UTF-16\nstring representation as `Position` and `Range` does.\n\nTo avoid ambiguities a server should use the [start, end] offset value instead of using\na substring. Whether a client support this is controlled via `labelOffsetSupport` client\ncapability.\n\n*Note*: a label of type string should be a substring of its containing signature label.\nIts intended use case is to highlight the parameter label part in the `SignatureInformation.label`."
                 },
                 {
                     "name": "documentation",
@@ -10475,6 +10500,30 @@
             ],
             "documentation": "Represents a parameter of a callable-signature. A parameter can\nhave a label and a doc-comment."
         },
+        {
+            "name": "CodeActionKindDocumentation",
+            "properties": [
+                {
+                    "name": "kind",
+                    "type": {
+                        "kind": "reference",
+                        "name": "CodeActionKind"
+                    },
+                    "documentation": "The kind of the code action being documented.\n\nIf the kind is generic, such as `CodeActionKind.Refactor`, the documentation will be shown whenever any\nrefactorings are returned. If the kind if more specific, such as `CodeActionKind.RefactorExtract`, the\ndocumentation will only be shown when extract refactoring code actions are returned."
+                },
+                {
+                    "name": "command",
+                    "type": {
+                        "kind": "reference",
+                        "name": "Command"
+                    },
+                    "documentation": "Command that is ued to display the documentation to the user.\n\nThe title of this documentation code action is taken from {@linkcode Command.title}"
+                }
+            ],
+            "documentation": "Documentation for a class of code actions.\n\n@since 3.18.0\n@proposed",
+            "since": "3.18.0",
+            "proposed": true
+        },
         {
             "name": "NotebookCellTextDocumentFilter",
             "properties": [
@@ -12281,6 +12330,17 @@
                     "optional": true,
                     "documentation": "Whether the client honors the change annotations in\ntext edits and resource operations returned via the\n`CodeAction#edit` property by for example presenting\nthe workspace edit in the user interface and asking\nfor confirmation.\n\n@since 3.16.0",
                     "since": "3.16.0"
+                },
+                {
+                    "name": "documentationSupport",
+                    "type": {
+                        "kind": "base",
+                        "name": "boolean"
+                    },
+                    "optional": true,
+                    "documentation": "Whether the client supports documentation for a class of\ncode actions.\n\n@since 3.18.0\n@proposed",
+                    "since": "3.18.0",
+                    "proposed": true
                 }
             ],
             "documentation": "The Client Capabilities of a {@link CodeActionRequest}."
@@ -14331,6 +14391,12 @@
                     "value": "source.fixAll",
                     "documentation": "Base kind for auto-fix source actions: `source.fixAll`.\n\nFix all actions automatically fix errors that have a clear fix that do not require user input.\nThey should not suppress errors or perform unsafe fixes such as generating new types or classes.\n\n@since 3.15.0",
                     "since": "3.15.0"
+                },
+                {
+                    "name": "Notebook",
+                    "value": "notebook",
+                    "documentation": "Base kind for all code actions applying to the entire notebook's scope. CodeActionKinds using\nthis should always begin with `notebook.`\n\n@since 3.18.0",
+                    "since": "3.18.0"
                 }
             ],
             "supportsCustomValues": true,
 
@@ -39,9 +39,8 @@ def lint(session: nox.Session):
     session.run("ruff", "--version")
     session.run("mypy", "--version")
 
-    session.run("ruff", "check", ".")
-    session.run("ruff", "check", "--select=I001", ".")
     session.run("ruff", "format", "--check", ".")
+
     session.run("mypy", "--strict", "--no-incremental", "./packages/python/lsprotocol")
 
     session.log("Linting: generated Rust code.")
@@ -59,10 +58,7 @@ def format(session: nox.Session):
 def _format_code(session: nox.Session):
     session.install("ruff")
     session.run("ruff", "--version")
-
-    session.run("ruff", "check", "--fix", "--select=I001", ".")
     session.run("ruff", "format", ".")
-    session.run("ruff", "check", "--fix", ".")
 
 
 @nox.session()
 
@@ -10,9 +10,7 @@
 import enum
 import functools
 from typing import Any, Dict, Optional, Sequence, Tuple, Union
-
 import attrs
-
 from . import validators
 
 __lsp_version__ = "3.17.0"
@@ -454,6 +452,12 @@ class CodeActionKind(str, enum.Enum):
     
     @since 3.15.0"""
     # Since: 3.15.0
+    Notebook = "notebook"
+    """Base kind for all code actions applying to the entire notebook's scope. CodeActionKinds using
+    this should always begin with `notebook.`
+    
+    @since 3.18.0"""
+    # Since: 3.18.0
 
 
 @enum.unique
@@ -4038,6 +4042,17 @@ class Command:
     command: str = attrs.field(validator=attrs.validators.instance_of(str))
     """The identifier of the actual command handler."""
 
+    tooltip: Optional[str] = attrs.field(
+        validator=attrs.validators.optional(attrs.validators.instance_of(str)),
+        default=None,
+    )
+    """An optional tooltip.
+    
+    @since 3.18.0
+    @proposed"""
+    # Since: 3.18.0
+    # Proposed
+
     arguments: Optional[Sequence[LSPAny]] = attrs.field(default=None)
     """Arguments that the command handler should be
     invoked with."""
@@ -4120,6 +4135,27 @@ class CodeActionOptions:
     The list of kinds may be generic, such as `CodeActionKind.Refactor`, or the server
     may list out every specific kind they provide."""
 
+    documentation: Optional[Sequence["CodeActionKindDocumentation"]] = attrs.field(
+        default=None
+    )
+    """Static documentation for a class of code actions.
+    
+    Documentation from the provider should be shown in the code actions menu if either:
+    
+    - Code actions of `kind` are requested by the editor. In this case, the editor will show the documentation that
+      most closely matches the requested code action kind. For example, if a provider has documentation for
+      both `Refactor` and `RefactorExtract`, when the user requests code actions for `RefactorExtract`,
+      the editor will use the documentation for `RefactorExtract` instead of the documentation for `Refactor`.
+    
+    - Any code actions of `kind` are returned by the provider.
+    
+    At most one documentation entry should be shown per provider.
+    
+    @since 3.18.0
+    @proposed"""
+    # Since: 3.18.0
+    # Proposed
+
     resolve_provider: Optional[bool] = attrs.field(
         validator=attrs.validators.optional(attrs.validators.instance_of(bool)),
         default=None,
@@ -4154,6 +4190,27 @@ class CodeActionRegistrationOptions:
     The list of kinds may be generic, such as `CodeActionKind.Refactor`, or the server
     may list out every specific kind they provide."""
 
+    documentation: Optional[Sequence["CodeActionKindDocumentation"]] = attrs.field(
+        default=None
+    )
+    """Static documentation for a class of code actions.
+    
+    Documentation from the provider should be shown in the code actions menu if either:
+    
+    - Code actions of `kind` are requested by the editor. In this case, the editor will show the documentation that
+      most closely matches the requested code action kind. For example, if a provider has documentation for
+      both `Refactor` and `RefactorExtract`, when the user requests code actions for `RefactorExtract`,
+      the editor will use the documentation for `RefactorExtract` instead of the documentation for `Refactor`.
+    
+    - Any code actions of `kind` are returned by the provider.
+    
+    At most one documentation entry should be shown per provider.
+    
+    @since 3.18.0
+    @proposed"""
+    # Since: 3.18.0
+    # Proposed
+
     resolve_provider: Optional[bool] = attrs.field(
         validator=attrs.validators.optional(attrs.validators.instance_of(bool)),
         default=None,
@@ -6855,6 +6912,10 @@ class ParameterInformation:
     signature label. (see SignatureInformation.label). The offsets are based on a UTF-16
     string representation as `Position` and `Range` does.
     
+    To avoid ambiguities a server should use the [start, end] offset value instead of using
+    a substring. Whether a client support this is controlled via `labelOffsetSupport` client
+    capability.
+    
     *Note*: a label of type string should be a substring of its containing signature label.
     Its intended use case is to highlight the parameter label part in the `SignatureInformation.label`."""
 
@@ -6863,6 +6924,29 @@ class ParameterInformation:
     in the UI but can be omitted."""
 
 
+@attrs.define
+class CodeActionKindDocumentation:
+    """Documentation for a class of code actions.
+
+    @since 3.18.0
+    @proposed"""
+
+    # Since: 3.18.0
+    # Proposed
+
+    kind: Union[CodeActionKind, str] = attrs.field()
+    """The kind of the code action being documented.
+    
+    If the kind is generic, such as `CodeActionKind.Refactor`, the documentation will be shown whenever any
+    refactorings are returned. If the kind if more specific, such as `CodeActionKind.RefactorExtract`, the
+    documentation will only be shown when extract refactoring code actions are returned."""
+
+    command: Command = attrs.field()
+    """Command that is ued to display the documentation to the user.
+    
+    The title of this documentation code action is taken from {@linkcode Command.title}"""
+
+
 @attrs.define
 class NotebookCellTextDocumentFilter:
     """A notebook cell text document filter denotes a cell text
@@ -8238,6 +8322,18 @@ class CodeActionClientCapabilities:
     @since 3.16.0"""
     # Since: 3.16.0
 
+    documentation_support: Optional[bool] = attrs.field(
+        validator=attrs.validators.optional(attrs.validators.instance_of(bool)),
+        default=None,
+    )
+    """Whether the client supports documentation for a class of
+    code actions.
+    
+    @since 3.18.0
+    @proposed"""
+    # Since: 3.18.0
+    # Proposed
+
 
 @attrs.define
 class CodeLensClientCapabilities:
@@ -12726,6 +12822,7 @@ def is_special_property(cls: type, property_name: str) -> bool:
     "CodeActionContext": CodeActionContext,
     "CodeActionDisabled": CodeActionDisabled,
     "CodeActionKind": CodeActionKind,
+    "CodeActionKindDocumentation": CodeActionKindDocumentation,
     "CodeActionOptions": CodeActionOptions,
     "CodeActionParams": CodeActionParams,
     "CodeActionRegistrationOptions": CodeActionRegistrationOptions,
 
@@ -1,6 +1,6 @@
 [package]
 name = "lsprotocol"
-version = "0.1.0-alpha.1"
+version = "0.1.0-alpha.2"
 edition = "2021"
 description = "Rust types for Language Server Protocol generated from LSP specification."
 authors = ["Microsoft Corporation <lsprotocol-help@microsoft.com>"]