Jeremiah Lowin a04f6fd911 Add telemetry off-switch and mcp.protocol.version span attribute (#4481) ... * Turn OpenTelemetry instrumentation on by default with explicit off-switch Add FASTMCP_ENABLE_TELEMETRY setting (default true) and mcp.protocol.version span attribute for SDK parity. * Make disabled telemetry a transparent pass-through, not a NoOpTracer The stock NoOpTracer.start_as_current_span attaches a NonRecordingSpan, hijacking the current OTel context from any enclosing application span. When telemetry is disabled, get_tracer() now returns a non-attaching pass-through tracer so trace.get_current_span() inside handlers still resolves to the caller's span.		2026-07-17 17:02:48 -04:00
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faq.mdx	Move pip upgrade recovery into a Troubleshooting section (#4219)	2026-05-22 21:13:19 -04:00
settings.mdx	Add telemetry off-switch and mcp.protocol.version span attribute (#4481)	2026-07-17 17:02:48 -04:00