Claude Code v2.1.221 ·
MCP: server/discover answered from the cached projection on the stateless proxy
Some MCP server discovery calls are answered from cache, avoiding an extra round trip.
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
MCPArea: what it touches
ImprovementsKind: in v2.1.221,
ImprovementsSection of the release
What
The stateless claudeai-proxy path, which already short-circuited initialize from a cached projection, now does the same for server/discover.
Details
- It either replies with the cached result or synthesises a JSON-RPC "Method not found" error for servers known to be legacy, without a round trip.
- Both cases are logged.
Evidence
Stateless claudeai-proxy — server/discover resolved locally as legacy (method-not-found), server/discover resolved locally as legacy (method-not-found)
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
See this entry in the whole of v2.1.221 →
