Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
MCPArea: what it touches
Internal ChangesKind: in v2.1.224,
Internal ChangesSection of the release
What
The helper that tagged MCP events with a server's base URL was replaced, in both of its copies, by one that also carries a hashed server key. Server identity in telemetry no longer depends on the raw URL.
Details
The hash is attached to tengu_mcp_listen_reopen events and is the preferred key for per-server rate limiting when forwarding logs, with the base URL used only as a fallback.
Evidence
mcpServerKeyHash
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
