Fix condition to check for _instructions attribute

Motta Kin · Motta Kin · commit f067645704ed · 2025-11-19T11:28:14.000+01:00
diff --git a/pydantic_ai_slim/pydantic_ai/mcp.py b/pydantic_ai_slim/pydantic_ai/mcp.py
@@ -204,7 +204,7 @@ def server_info(self) -> mcp_types.Implementation:
     @property
     def instructions(self) -> str | None:
         """Access the instructions sent by the MCP server during initialization."""
-        if getattr(self, '_server_info', None) is None:
+        if getattr(self, '_instructions', None) is None:
             raise AttributeError(
                 f'The `{self.__class__.__name__}.instructions` is only available after initialization.'
             )

Original file line number	Diff line number	Diff line change
`@@ -204,7 +204,7 @@ def server_info(self) -> mcp_types.Implementation:`
`204`	`204`	`@property`
`205`	`205`	`def instructions(self) -> str \| None:`
`206`	`206`	`"""Access the instructions sent by the MCP server during initialization."""`
`207`		`- if getattr(self, '_server_info', None) is None:`
	`207`	`+ if getattr(self, '_instructions', None) is None:`
`208`	`208`	`raise AttributeError(`
`209`	`209`	f'The `{self.__class__.__name__}.instructions` is only available after initialization.'
`210`	`210`	`)`