Unclear Whether the tengu_mcp_listing_prior_rejected gate is enabled for any accounts is unknown; it has not been read.
What
The tengu_mcp_listing_prior_rejected telemetry event, which fires when a server rejects a connection built from a cached list of MCP tools/servers, now also records a priorSource field alongside the existing priorKind and reason fields.
Why
This gives more detail about where the stale cached data came from when a connection built from it gets rejected, which can help diagnose why a cached MCP listing went bad.
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The writer flagged doubt
Whether the `tengu_mcp_listing_prior_rejected` gate is enabled for any accounts is unknown; it has not been read.