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fix: update context logging type hints to allow any JSON-serializable data #2445

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cubaseuser123 wants to merge 2 commits into from
+10 −10
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fix: update context logging type hints to allow any JSON-serializable data #2445

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dacf101
fix(#397): update context logging type hints to allow any JSON-serial…
cubaseuser123 Apr 14, 2026
a44c7eb
Merge branch 'main' into fix/397-context-logging-any-type
cubaseuser123 Apr 14, 2026
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20 changes: 10 additions & 10 deletions src/mcp/server/mcpserver/context.py
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Original file line number Diff line number Diff line change
Expand Up @@ -187,7 +187,7 @@ async def elicit_url(
async def log(
self,
level: Literal["debug", "info", "warning", "error"],
message: str,
message: Any,
*,
logger_name: str | None = None,
extra: dict[str, Any] | None = None,
Expand All @@ -196,7 +196,7 @@ async def log(

Args:
level: Log level (debug, info, warning, error)
message: Log message
message: Log message. Any JSON-serializable type is allowed per the MCP spec.
logger_name: Optional logger name
extra: Optional dictionary with additional structured data to include
"""
Expand Down Expand Up @@ -261,20 +261,20 @@ async def close_standalone_sse_stream(self) -> None:
await self._request_context.close_standalone_sse_stream()

# Convenience methods for common log levels
async def debug(self, message: str, *, logger_name: str | None = None, extra: dict[str, Any] | None = None) -> None:
"""Send a debug log message."""
async def debug(self, message: Any, *, logger_name: str | None = None, extra: dict[str, Any] | None = None) -> None:
"""Send a debug log message. Any JSON-serializable type is allowed for message."""
await self.log("debug", message, logger_name=logger_name, extra=extra)

async def info(self, message: str, *, logger_name: str | None = None, extra: dict[str, Any] | None = None) -> None:
"""Send an info log message."""
async def info(self, message: Any, *, logger_name: str | None = None, extra: dict[str, Any] | None = None) -> None:
"""Send an info log message. Any JSON-serializable type is allowed for message."""
await self.log("info", message, logger_name=logger_name, extra=extra)

async def warning(
self, message: str, *, logger_name: str | None = None, extra: dict[str, Any] | None = None
self, message: Any, *, logger_name: str | None = None, extra: dict[str, Any] | None = None
) -> None:
"""Send a warning log message."""
"""Send a warning log message. Any JSON-serializable type is allowed for message."""
await self.log("warning", message, logger_name=logger_name, extra=extra)

async def error(self, message: str, *, logger_name: str | None = None, extra: dict[str, Any] | None = None) -> None:
"""Send an error log message."""
async def error(self, message: Any, *, logger_name: str | None = None, extra: dict[str, Any] | None = None) -> None:
"""Send an error log message. Any JSON-serializable type is allowed for message."""
await self.log("error", message, logger_name=logger_name, extra=extra)
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