Repository Issue Activity (beta)

#1191 sse: Close does not drain incoming; Read can deliver stale messages after Close and POST can return false 202

#1133 Sampling Temperature: 0 is unrepresentable on the wire (omitempty drops it)

#1164 initialize sends no Mcp-Protocol-Version of its own, so the header can contradict params.protocolVersion

#1177 stdio: a server that exits on the server/discover probe leaves Client.Connect no way to reach the documented initialize fallback

#1188 Dual-era servers serve modern Tool schemas unchanged to legacy clients

#1183 streamable client Close() blocks on DELETE to an unresponsive server (cancel happens after Do)

#1189 streamable client: Connect blocks far past its context deadline against an unresponsive server (detached-context cleanup)

#1131 MemoryEventStore.After panics (slice out of range) on an index past the last stored event

#1100 internal/jsonrpc2: plumb cancellation cause through req.ctx (resolve TODO #51365)

#1185 mcp: support per-resource cache policy for resources/read

#148 Proposal: Session recovery / shared session storage for distributed MCP env

#1152 OAuth: a correct but unadvertised RFC 9207 iss fails the whole sign-in (§2.4 asks for validation, not rejection)

#1175 Standalone SSE stream failure tears down the whole connection, including the healthy POST channel

#1174 ClientSession.Ping omits the SEP-2575 per-request _meta envelope on 2026-07-28 sessions

#1162 setMCPHeaders prefers the request context over the negotiated protocol version since #1115

#1160 mcp: ServerSession.Close deadlocks while a subscriptions/listen stream is in flight

#1169 mcp: Client.Connect succeeds after subscriptions/listen is rejected

#626 SEP-1686 (experimental): Implement Tasks

#1173 Streamable HTTP: an unsupported protocol version below 2026-07-28 is a plain-text 400, above it a -32022 with data.supported

#1171 ClientSession.Subscribe can silently succeed while the session is closing

#1154 Client.Connect leaks the ClientSession when the server answers with an unsupported protocol version

#1155 Streamable HTTP: POST response writes nothing until the request completes, so long tool calls look like a dead connection

#855 Potential race condition in (*mcp.ClientSession).Close()

#1147 jsonrpc2.Connection.processResult silently discards write errors for late responses, giving no signal when a response can't be delivered

#1150 mcp: best-effort cancellation notification blocks the caller's return past its deadline