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Merged
twishabansal merged 7 commits into from
Jan 28, 2026
Merged

chore: keep default mcp version as v20250618 #212

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09fc7d7
fix default mcp version
twishabansal Jan 28, 2026
bfed312
cc
twishabansal Jan 28, 2026
650075e
refactor
twishabansal Jan 28, 2026
1451e85
revert unwanted changes
twishabansal Jan 28, 2026
9307899
lint
twishabansal Jan 28, 2026
61dc777
Update packages/toolbox-adk/README.md
twishabansal Jan 28, 2026
53b692f
Update README.md
twishabansal Jan 28, 2026
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2 changes: 1 addition & 1 deletion packages/toolbox-adk/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -133,7 +133,7 @@ The SDK supports multiple transport protocols to communicate with the Toolbox se

### Available Protocols

- `Protocol.MCP`: The default protocol (currently aliases to `MCP_v20251125`).
- `Protocol.MCP`: The default protocol version (currently aliases to `MCP_v20250618`).
- `Protocol.MCP_v20241105`: Use this for compatibility with older MCP servers (November 2024 version).
- `Protocol.MCP_v20250326`: March 2025 version.
- `Protocol.MCP_v20250618`: June 2025 version.
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2 changes: 1 addition & 1 deletion packages/toolbox-core/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -131,7 +131,7 @@ The SDK supports multiple transport protocols to communicate with the Toolbox se

### Available Protocols

- `Protocol.MCP`: The default protocol (currently aliases to `MCP_v20251125`).
- `Protocol.MCP`: The default protocol version (currently aliases to `MCP_v20250618`).
- `Protocol.MCP_v20241105`: Use this for compatibility with older MCP servers (November 2024 version).
- `Protocol.MCP_v20250326`: March 2025 version.
- `Protocol.MCP_v20250618`: June 2025 version.
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61 changes: 36 additions & 25 deletions packages/toolbox-core/src/toolbox_core/client.ts
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Expand Up @@ -63,32 +63,43 @@ class ToolboxClient {
if (protocol === Protocol.TOOLBOX) {
this.#transport = new ToolboxTransport(url, session || undefined);
} else if (getSupportedMcpVersions().includes(protocol)) {
if (protocol === Protocol.MCP_v20241105) {
this.#transport = new McpHttpTransportV20241105(
url,
session || undefined,
protocol,
if (protocol !== Protocol.MCP_v20251125) {
console.warn(
'A newer version of MCP: v2025-11-25 is available. Please use MCP_v20251125 to use the latest features.',
);
} else if (protocol === Protocol.MCP_v20250326) {
this.#transport = new McpHttpTransportV20250326(
url,
session || undefined,
protocol,
);
} else if (protocol === Protocol.MCP_v20250618) {
this.#transport = new McpHttpTransportV20250618(
url,
session || undefined,
protocol,
);
} else if (protocol === Protocol.MCP_v20251125) {
this.#transport = new McpHttpTransportV20251125(
url,
session || undefined,
protocol,
);
} else {
throw new Error(`Unsupported MCP protocol version: ${protocol}`);
}

switch (protocol) {
case Protocol.MCP_v20241105:
this.#transport = new McpHttpTransportV20241105(
url,
session || undefined,
protocol,
);
break;
case Protocol.MCP_v20250326:
this.#transport = new McpHttpTransportV20250326(
url,
session || undefined,
protocol,
);
break;
case Protocol.MCP_v20250618:
this.#transport = new McpHttpTransportV20250618(
url,
session || undefined,
protocol,
);
break;
case Protocol.MCP_v20251125:
this.#transport = new McpHttpTransportV20251125(
url,
session || undefined,
protocol,
);
break;
default:
throw new Error(`Unsupported MCP protocol version: ${protocol}`);
}
} else {
throw new Error(`Unsupported protocol version: ${protocol}`);
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2 changes: 1 addition & 1 deletion packages/toolbox-core/src/toolbox_core/protocol.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,7 @@ export enum Protocol {
MCP_v20250326 = '2025-03-26',
MCP_v20250618 = '2025-06-18',
MCP_v20251125 = '2025-11-25',
MCP = MCP_v20251125, // Default MCP
MCP = MCP_v20250618, // Default MCP
}

export function getSupportedMcpVersions(): Protocol[] {
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12 changes: 6 additions & 6 deletions packages/toolbox-core/test/test.client.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -110,10 +110,10 @@ describe('ToolboxClient', () => {
describe('Initialization', () => {
it('should initialize with the correct base URL (default MCP)', () => {
client = new ToolboxClient(testBaseUrl);
expect(McpHttpTransportV20251125).toHaveBeenCalledWith(
expect(McpHttpTransportV20250618).toHaveBeenCalledWith(
testBaseUrl,
undefined,
Protocol.MCP_v20251125,
Protocol.MCP_v20250618,
);
});

Expand All @@ -122,10 +122,10 @@ describe('ToolboxClient', () => {
get: jest.fn(),
} as unknown as import('axios').AxiosInstance;
client = new ToolboxClient(testBaseUrl, mockSession);
expect(McpHttpTransportV20251125).toHaveBeenCalledWith(
expect(McpHttpTransportV20250618).toHaveBeenCalledWith(
testBaseUrl,
mockSession,
Protocol.MCP_v20251125,
Protocol.MCP_v20250618,
);
});

Expand All @@ -136,10 +136,10 @@ describe('ToolboxClient', () => {
undefined,
Protocol.MCP,
);
expect(McpHttpTransportV20251125).toHaveBeenCalledWith(
expect(McpHttpTransportV20250618).toHaveBeenCalledWith(
testBaseUrl,
undefined,
Protocol.MCP_v20251125,
Protocol.MCP_v20250618,
);
});

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