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v0.5.2

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@alexsku alexsku released this 25 Feb 04:51
v0.5.2
f918eb8

Fixed

  • HTTP transport ContextVar propagation: Fixed LookupError for _mcp_dh_client ContextVar when running with HTTP transport (stateless_http=True). Each HTTP request runs in a separate async context that doesn't inherit ContextVars from the main thread, causing DocumentToolsMiddleware and VersionFilterMiddleware to fail. Added _DataHubClientMiddleware that sets the ContextVar at the start of every MCP message.
  • create_app() initialization safety: The _app_initialized flag is now set only after all middleware is successfully added, so a failed setup can be retried.
  • --debug middleware ordering: LoggingMiddleware is now added before other middlewares so it wraps the full request/response lifecycle for maximum visibility.

Added

  • create_app() factory function: Extracted server setup into a factory function so that fastmcp dev / fastmcp run work correctly (they import the module but never call main()).
  • Multi-mode smoke testing: smoke_check.py now supports --url and --stdio-cmd options to test against running HTTP/SSE servers or stdio subprocesses, in addition to the default in-process mode.
  • test_all_modes.sh orchestrator: Runs smoke checks across all 5 transport modes (in-process, HTTP, SSE, stdio, fastmcp run), with per-mode log capture to scripts/logs/.
  • SMOKE_CHECK.md: Documentation with step-by-step reproduction instructions for all transport modes.
  • Core tool validation: Smoke check now verifies that all 8 core read-only tools are present, catching silent regressions in tool registration or middleware filtering.

Full Changelog: v0.5.1...v0.5.2

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