oss(py): genai docs work (#1375)

more to come

Author: mdrxy

reference/python/uv.lock

@@ -1048,7 +1048,7 @@ Models can be requested to provide their response in a format matching a given s
     - **Method parameter**: Some providers support different methods (`'json_schema'`, `'function_calling'`, `'json_mode'`)
         - `'json_schema'` typically refers to dedicated structured output features offered by a provider
         - `'function_calling'` derives structured output by forcing a [tool call](#tool-calling) following the given schema
-        - `'json_mode'` is a precursor to `'json_schema'` offered by some providers- it generates valid json, but the schema must be described in the prompt
+        - `'json_mode'` is a precursor to `'json_schema'` offered by some providers - it generates valid json, but the schema must be described in the prompt
     - **Include raw**: Use `include_raw=True` to get both the parsed output and the raw AI message
     - **Validation**: Pydantic models provide automatic validation, while `TypedDict` and JSON Schema require manual validation
 </Note>

src/oss/langchain/models.mdx

@@ -72,7 +72,7 @@ const agent = createAgent({
 
 ## Provider strategy
 
-Some model providers support structured output natively through their APIs (currently only OpenAI and Grok). This is the most reliable method when available.
+Some model providers support structured output natively through their APIs (e.g. OpenAI, Grok, Gemini). This is the most reliable method when available.
 
 To use this strategy, configure a `ProviderStrategy`:
 

src/oss/langchain/structured-output.mdx

@@ -1396,8 +1396,8 @@ const deleteMessages = (state) => {
 <Warning>
 When deleting messages, **make sure** that the resulting message history is valid. Check the limitations of the LLM provider you're using. For example:
 
-* some providers expect message history to start with a `user` message
-* most providers require `assistant` messages with tool calls to be followed by corresponding `tool` result messages.
+* Some providers expect message history to start with a `user` message
+* Most providers require `assistant` messages with tool calls to be followed by corresponding `tool` result messages.
 </Warning>
 
 <Accordion title="Full example: delete messages">