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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Client requests hang forever if server dies","articleBody":"**Describe the bug**\nIf the stdio streams close before responding to a request (i.e. the server dies), the pending request waits forever (or for the read timeout) instead of erroring.\n\n**To Reproduce**\nSteps to reproduce the behavior:\n1. `await session.initialize()` or some other request\n2. in the server request handler, exit instead of responding to the request\n3. on the client, the `await` never resolves so the client hangs indefinitely\n\n**Expected behavior**\nThe typescript SDK makes the pending requests return a `-32000` \"Connection closed\" in this case\n\nhttps://github.com/modelcontextprotocol/typescript-sdk/blob/0fa2397174eba309b54575294d56754c52b13a65/src/shared/protocol.ts#L260-L263\n","author":{"url":"https://github.com/mroch","@type":"Person","name":"mroch"},"datePublished":"2025-03-20T14:05:49.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/332/python-sdk/issues/332"}