Feat: Add stateless mode for StreamableHttpServerTransport #48
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OpenAI's MCP implementation terminates sessions after tool discovery in "never require approval" mode, causing subsequent tool calls to fail. This adds a stateless mode where each request is independent and sessions are auto-initialized when needed.
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This PR adds stateless mode support to
StreamableHttpServerTransportto handle clients that have issues with persistent session management.What changed:
statelessparameter toStreamableHttpServerTransportconstructorProtocol::processMessageto auto-initialize sessions in stateless contextsWhy it's needed:
OpenAI's MCP implementation terminates sessions after the initial tool discovery phase when running in "never require approval" mode. This causes subsequent tool calls to fail with session validation errors.
In stateless mode:
The other transport types (
StdioServerTransport,HttpServerTransport) are unaffected since they have different session requirements.