modelcontextprotocol/ruby-sdk
Watch
1
0
Fork
You've already forked ruby-sdk
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Merge pull request #438 from koic/server_discover

Browse source 
Add `server/discover` and stateless lifecycle error codes per SEP-2575
This commit is contained in:
Koichi ITO 2026-07-10 00:26:49 +09:00 • committed by GitHub
commit 61233ed43b
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
1 changed files with 149 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

35
test/mcp/server/transports/streamable_http_transport_test.rb
View file

@ -551,6 +551,41 @@ module MCP
assert_equal 200, response[0]
end
test "allows server/discover POST without session ID in stateful mode" do
# Per SEP-2575, `server/discover` is sessionless capability discovery and is exempt
# from the session requirement, like `initialize`.
request = create_rack_request(
"POST",
"/",
{ "CONTENT_TYPE" => "application/json" },
{ jsonrpc: "2.0", method: "server/discover", id: "1" }.to_json,
)
response = @transport.handle_request(request)
assert_equal 200, response[0]
body = JSON.parse(response[2][0])
assert_equal Configuration::SUPPORTED_STABLE_PROTOCOL_VERSIONS, body.dig("result", "supportedVersions")
refute response[1].key?("Mcp-Session-Id")
end
test "allows server/discover POST without session ID in stateless mode" do
stateless_transport = StreamableHTTPTransport.new(@server, stateless: true)
request = create_rack_request(
"POST",
"/",
{ "CONTENT_TYPE" => "application/json" },
{ jsonrpc: "2.0", method: "server/discover", id: "1" }.to_json,
)
response = stateless_transport.handle_request(request)
assert_equal 200, response[0]
body = JSON.parse(response[2][0])
assert_equal Configuration::SUPPORTED_STABLE_PROTOCOL_VERSIONS, body.dig("result", "supportedVersions")
end
test "rejects duplicate SSE connection with 409" do
# Create a session
init_request = create_rack_request(