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Fix MCP 2025-11-25 negotiation #123

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Merged
adamcohenhillel merged 1 commit into from
Jul 11, 2026
Merged

Fix MCP 2025-11-25 negotiation #123

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2 changes: 1 addition & 1 deletion integrations/mcp-server/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,7 @@ Safety defaults:

The server speaks the MCP stdio transport: newline-delimited JSON-RPC (one
message per line, no `Content-Length` headers) and negotiates
`protocolVersion` during `initialize` (latest supported: `2025-06-18`).
`protocolVersion` during `initialize` (latest supported: `2025-11-25`).

The same ADB transport works with the OpenPhone SDK phone emulator:

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2 changes: 1 addition & 1 deletion integrations/mcp-server/src/index.mjs
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ import {
textContent,
} from "../runtime/protocol/openphone-runtime-tools.mjs";

export const SUPPORTED_PROTOCOL_VERSIONS = ["2025-06-18"];
export const SUPPORTED_PROTOCOL_VERSIONS = ["2025-11-25", "2025-06-18"];
const LATEST_PROTOCOL_VERSION = SUPPORTED_PROTOCOL_VERSIONS[0];
export const RUNTIME_PROTOCOL_INFO = runtimeProtocolInfo();
const SERVER_INFO = {
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15 changes: 13 additions & 2 deletions tests/integrations/runtime-mcp-contract.mjs
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Expand Up @@ -42,6 +42,17 @@ const fakeTransport = {

{
// A supported client protocolVersion is echoed back.
const response = await handleRequest({
jsonrpc: "2.0",
id: 1,
method: "initialize",
params: { protocolVersion: "2025-11-25" },
}, { transport: fakeTransport });
assert.equal(response.result.protocolVersion, "2025-11-25");
}

{
// Older supported client protocolVersions are still echoed back.
const response = await handleRequest({
jsonrpc: "2.0",
id: 1,
Expand Down Expand Up @@ -206,14 +217,14 @@ const fakeTransport = {
id: 1,
method: "initialize",
params: {
protocolVersion: "2025-06-18",
protocolVersion: "2025-11-25",
capabilities: {},
clientInfo: { name: "contract-test", version: "0.0.0" },
},
});
const initialize = await nextResponse();
assert.equal(initialize.id, 1);
assert.equal(initialize.result.protocolVersion, "2025-06-18");
assert.equal(initialize.result.protocolVersion, "2025-11-25");
assert.equal(initialize.result.serverInfo.name, "openphone-runtime");
assert.equal(initialize.result.serverInfo.runtimeProtocol.name, "openphone-runtime-protocol");
assert.equal(initialize.result.serverInfo.runtimeProtocol.min_version, 1);
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