All issues

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

#1183

· whasamatau opened

on Aug 18, 2026

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

#1177

· ta1kun opened

on Aug 16, 2026

ClientSession.Subscribe can silently succeed while the session is closing

#1171

· jstar0 opened

on Aug 13, 2026

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

#1169

· jstar0 opened

on Aug 13, 2026

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

#1164

· gwyszynski-sa opened

on Aug 13, 2026

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

#1155

· spkenny455 opened

on Aug 9, 2026

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

#1152

· kryptosmatrix opened

on Aug 7, 2026

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

#1147

· jordigilh opened

on Aug 5, 2026

mcp: client multi-round-trip middleware mutates caller params, replaying inputResponses across calls

#1144

· yhxlele opened

on Aug 5, 2026

proposal: client DPoP support (SEP-1932 baseline, no nonce)

#1139

· gbshankar opened

on Aug 4, 2026

RequireBearerToken omits RFC 6750 error code, so the SDK's own step-up flow never triggers

#1134

· PratikDhanave opened

on Aug 2, 2026

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

#1133

· PratikDhanave opened

on Aug 2, 2026