diff --git a/libs/core/tests/unit_tests/runnables/__snapshots__/test_runnable.ambr b/libs/core/tests/unit_tests/runnables/__snapshots__/test_runnable.ambr
index fdc3ca0c813..08edfda4165 100644
--- a/libs/core/tests/unit_tests/runnables/__snapshots__/test_runnable.ambr
+++ b/libs/core/tests/unit_tests/runnables/__snapshots__/test_runnable.ambr
@@ -3006,7 +3006,7 @@
         'description': '''
           A chunk of a tool call (e.g., as part of a stream).
           
-          When merging ToolCallChunks (e.g., via ``AIMessageChunk.__add__``),
+          When merging ``ToolCallChunks`` (e.g., via ``AIMessageChunk.__add__``),
           all string attributes are concatenated. Chunks are only merged if their
           values of ``index`` are equal and not ``None``.
           
@@ -4530,7 +4530,7 @@
         'description': '''
           A chunk of a tool call (e.g., as part of a stream).
           
-          When merging ToolCallChunks (e.g., via ``AIMessageChunk.__add__``),
+          When merging ``ToolCallChunks`` (e.g., via ``AIMessageChunk.__add__``),
           all string attributes are concatenated. Chunks are only merged if their
           values of ``index`` are equal and not ``None``.
           
@@ -6066,7 +6066,7 @@
         'description': '''
           A chunk of a tool call (e.g., as part of a stream).
           
-          When merging ToolCallChunks (e.g., via ``AIMessageChunk.__add__``),
+          When merging ``ToolCallChunks`` (e.g., via ``AIMessageChunk.__add__``),
           all string attributes are concatenated. Chunks are only merged if their
           values of ``index`` are equal and not ``None``.
           
@@ -7458,7 +7458,7 @@
         'description': '''
           A chunk of a tool call (e.g., as part of a stream).
           
-          When merging ToolCallChunks (e.g., via ``AIMessageChunk.__add__``),
+          When merging ``ToolCallChunks`` (e.g., via ``AIMessageChunk.__add__``),
           all string attributes are concatenated. Chunks are only merged if their
           values of ``index`` are equal and not ``None``.
           
@@ -9024,7 +9024,7 @@
         'description': '''
           A chunk of a tool call (e.g., as part of a stream).
           
-          When merging ToolCallChunks (e.g., via ``AIMessageChunk.__add__``),
+          When merging ``ToolCallChunks`` (e.g., via ``AIMessageChunk.__add__``),
           all string attributes are concatenated. Chunks are only merged if their
           values of ``index`` are equal and not ``None``.
           
@@ -9638,7 +9638,7 @@
           Annotation for citing data from a document.
           
           .. note::
-              ``start/end`` indices refer to the **response text**,
+              ``start``/``end`` indices refer to the **response text**,
               not the source text. This means that the indices are relative to the model's
               response, not the original document (as specified in the ``url``).
           
@@ -10267,7 +10267,7 @@
           The purpose of this block should be to simply hold a provider-specific payload.
           If a provider's non-standard output includes reasoning and tool calls, it should be
           the adapter's job to parse that payload and emit the corresponding standard
-          ReasoningContentBlock and ToolCallContentBlocks.
+          ``ReasoningContentBlock`` and ``ToolCallContentBlocks``.
           
           .. note::
               ``create_non_standard_block`` may also be used as a factory to create a
@@ -10445,7 +10445,7 @@
           Contains additional information returned by the provider, such as
           response headers, service tiers, log probabilities, system fingerprints, etc.
           
-          Extra keys are permitted from what is typed here (via `total=False`), allowing
+          Extra keys are permitted from what is typed here (via ``total=False``), allowing
           for provider-specific metadata to be included without breaking the type
           definition.
         ''',
@@ -10658,7 +10658,7 @@
         'description': '''
           A chunk of a tool call (e.g., as part of a stream).
           
-          When merging ToolCallChunks (e.g., via ``AIMessageChunk.__add__``),
+          When merging ``ToolCallChunks`` (e.g., via ``AIMessageChunk.__add__``),
           all string attributes are concatenated. Chunks are only merged if their
           values of ``index`` are equal and not ``None``.
           
@@ -11533,10 +11533,10 @@
                   '$ref': '#/definitions/ToolCall',
                 }),
                 dict({
-                  '$ref': '#/definitions/InvalidToolCall',
+                  '$ref': '#/definitions/ToolCallChunk',
                 }),
                 dict({
-                  '$ref': '#/definitions/ToolCallChunk',
+                  '$ref': '#/definitions/InvalidToolCall',
                 }),
                 dict({
                   '$ref': '#/definitions/ReasoningContentBlock',
@@ -11658,10 +11658,10 @@
                   '$ref': '#/definitions/ToolCall',
                 }),
                 dict({
-                  '$ref': '#/definitions/InvalidToolCall',
+                  '$ref': '#/definitions/ToolCallChunk',
                 }),
                 dict({
-                  '$ref': '#/definitions/ToolCallChunk',
+                  '$ref': '#/definitions/InvalidToolCall',
                 }),
                 dict({
                   '$ref': '#/definitions/ReasoningContentBlock',
@@ -11783,10 +11783,10 @@
                   '$ref': '#/definitions/ToolCall',
                 }),
                 dict({
-                  '$ref': '#/definitions/InvalidToolCall',
+                  '$ref': '#/definitions/ToolCallChunk',
                 }),
                 dict({
-                  '$ref': '#/definitions/ToolCallChunk',
+                  '$ref': '#/definitions/InvalidToolCall',
                 }),
                 dict({
                   '$ref': '#/definitions/ReasoningContentBlock',
@@ -11870,10 +11870,10 @@
                   '$ref': '#/definitions/ToolCall',
                 }),
                 dict({
-                  '$ref': '#/definitions/InvalidToolCall',
+                  '$ref': '#/definitions/ToolCallChunk',
                 }),
                 dict({
-                  '$ref': '#/definitions/ToolCallChunk',
+                  '$ref': '#/definitions/InvalidToolCall',
                 }),
                 dict({
                   '$ref': '#/definitions/ReasoningContentBlock',
@@ -11980,10 +11980,10 @@
                   '$ref': '#/definitions/ToolCall',
                 }),
                 dict({
-                  '$ref': '#/definitions/InvalidToolCall',
+                  '$ref': '#/definitions/ToolCallChunk',
                 }),
                 dict({
-                  '$ref': '#/definitions/ToolCallChunk',
+                  '$ref': '#/definitions/InvalidToolCall',
                 }),
                 dict({
                   '$ref': '#/definitions/ReasoningContentBlock',
@@ -13212,7 +13212,7 @@
         'description': '''
           A chunk of a tool call (e.g., as part of a stream).
           
-          When merging ToolCallChunks (e.g., via ``AIMessageChunk.__add__``),
+          When merging ``ToolCallChunks`` (e.g., via ``AIMessageChunk.__add__``),
           all string attributes are concatenated. Chunks are only merged if their
           values of ``index`` are equal and not ``None``.
           
@@ -14698,7 +14698,7 @@
         'description': '''
           A chunk of a tool call (e.g., as part of a stream).
           
-          When merging ToolCallChunks (e.g., via ``AIMessageChunk.__add__``),
+          When merging ``ToolCallChunks`` (e.g., via ``AIMessageChunk.__add__``),
           all string attributes are concatenated. Chunks are only merged if their
           values of ``index`` are equal and not ``None``.