informatics-isi-edu / deriva-mcp-core

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revert lifecycle hook slow-call warning (wall-clock threshold approach does not work)

  The timing-based warning in _safe_call fired false positives on mcp-core's own _handle_catalog_connect hook (correctly async but slow due to sequential ChromaDB awaits) and also on plugin hooks that are slow for unrelated reasons. Wall-clock duration cannot distinguish a properly-async slow hook from one that blocks the event loop with synchronous calls. Reverted to the original _safe_call. The correct enforcement is the AST test already used by plugins to check that all blocking calls inside async hooks are wrapped in asyncio.to_thread().

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