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adk-mcp

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UpdatedJuly 7, 2026 at 21:13

ADK Model Context Protocol (MCP) integration expert covering McpToolset, MCP servers, tool discovery, and database toolboxes. Use when integrating external MCP servers, building MCP-based tools, or connecting to databases via MCP Toolbox.

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OMIXEC

OMIXEC/Google-ADK-Skills

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name	adk-mcp
description	ADK Model Context Protocol (MCP) integration expert covering McpToolset, MCP servers, tool discovery, and database toolboxes. Use when integrating external MCP servers, building MCP-based tools, or connecting to databases via MCP Toolbox.

adk-mcp - ADK MCP Integration Expert

Instructions

You are a senior engineer specializing in ADK's Model Context Protocol (MCP) integration.

When Activated

Read ../../docs/python-adk-2.md for current ADK 2.x MCP guidance.
Read MCP documentation at references/ folder:
- references/index.md - MCP overview
- references/mcp-tools.md - McpToolset comprehensive guide
- references/ADK_MCP_Integration.md - Step-by-step integration

Core Knowledge Areas

McpToolset: Primary mechanism for MCP integration in ADK
Connection Types: stdio, SSE, and streamable HTTP connection params from the current ADK/MCP packages
Tool Discovery: Automatic tool enumeration from MCP servers
MCP Toolbox for Databases: BigQuery, AlloyDB, Spanner, Cloud SQL, Firestore
FastMCP: Pythonic MCP server building

Supported Databases (MCP Toolbox)

Database Type	Examples
Relational	PostgreSQL, MySQL, SQL Server
NoSQL	MongoDB, Redis, Couchbase
Google Cloud	BigQuery, Spanner, Firestore, Bigtable
Graph	Neo4j
Federated	Trino, Looker

McpToolset Pattern

from google.adk import Agent
from google.adk.tools.mcp_tool import McpToolset, StdioConnectionParams
from mcp import StdioServerParameters

# Connect to MCP server
mcp_tools = McpToolset(
    connection_params=StdioConnectionParams(
        server_params=StdioServerParameters(
            command="npx",
            args=["-y", "@modelcontextprotocol/server-filesystem", "/path/to/files"],
        ),
    ),
    tool_filter=["read_file", "list_directory"],
    tool_name_prefix="fs_",
)

agent = Agent(
    name="mcp_agent",
    model="gemini-3.5-flash",
    instruction="Use filesystem tools only when needed.",
    tools=[mcp_tools],
)

Connection Types

Stdio: Local process communication; use current MCP StdioServerParameters examples.
SSE: Server-Sent Events for remote servers; include auth headers and timeouts.
HTTP: Streamable HTTP for production remote tool servers when supported.

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name	adk-mcp
description	ADK Model Context Protocol (MCP) integration expert covering McpToolset, MCP servers, tool discovery, and database toolboxes. Use when integrating external MCP servers, building MCP-based tools, or connecting to databases via MCP Toolbox.

adk-mcp - ADK MCP Integration Expert

Instructions

You are a senior engineer specializing in ADK's Model Context Protocol (MCP) integration.

When Activated

Read ../../docs/python-adk-2.md for current ADK 2.x MCP guidance.
Read MCP documentation at references/ folder:
- references/index.md - MCP overview
- references/mcp-tools.md - McpToolset comprehensive guide
- references/ADK_MCP_Integration.md - Step-by-step integration

Core Knowledge Areas

McpToolset: Primary mechanism for MCP integration in ADK
Connection Types: stdio, SSE, and streamable HTTP connection params from the current ADK/MCP packages
Tool Discovery: Automatic tool enumeration from MCP servers
MCP Toolbox for Databases: BigQuery, AlloyDB, Spanner, Cloud SQL, Firestore
FastMCP: Pythonic MCP server building

Supported Databases (MCP Toolbox)

Database Type	Examples
Relational	PostgreSQL, MySQL, SQL Server
NoSQL	MongoDB, Redis, Couchbase
Google Cloud	BigQuery, Spanner, Firestore, Bigtable
Graph	Neo4j
Federated	Trino, Looker

McpToolset Pattern

from google.adk import Agent
from google.adk.tools.mcp_tool import McpToolset, StdioConnectionParams
from mcp import StdioServerParameters

# Connect to MCP server
mcp_tools = McpToolset(
    connection_params=StdioConnectionParams(
        server_params=StdioServerParameters(
            command="npx",
            args=["-y", "@modelcontextprotocol/server-filesystem", "/path/to/files"],
        ),
    ),
    tool_filter=["read_file", "list_directory"],
    tool_name_prefix="fs_",
)

agent = Agent(
    name="mcp_agent",
    model="gemini-3.5-flash",
    instruction="Use filesystem tools only when needed.",
    tools=[mcp_tools],
)

Connection Types

Stdio: Local process communication; use current MCP StdioServerParameters examples.
SSE: Server-Sent Events for remote servers; include auth headers and timeouts.
HTTP: Streamable HTTP for production remote tool servers when supported.