feat(types): add mcp_servers field to AgentDefinition#592
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gspeter-max wants to merge 1 commit intoanthropics:mainfrom
Open
feat(types): add mcp_servers field to AgentDefinition#592gspeter-max wants to merge 1 commit intoanthropics:mainfrom
gspeter-max wants to merge 1 commit intoanthropics:mainfrom
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ROOT CAUSE: The Python SDK's AgentDefinition was missing the mcpServers field that is documented in Claude Code docs and supported by the CLI via .claude/agents/*.md frontmatter. This prevented subagents from having their own MCP server configurations. CHANGES: - Added mcp_servers: dict[str, "McpServerConfig"] | None field to AgentDefinition - Added test_build_command_agents_with_mcp_servers test - Added agent_with_mcp_servers_example() to examples/agents.py IMPACT: - Subagents can now have their own MCP server configurations - Matches CLI behavior and TypeScript SDK capabilities - Fully backward compatible (optional field, defaults to None) FILES MODIFIED: - src/claude_agent_sdk/types.py - tests/test_transport.py - examples/agents.py Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
mcp_serversfield toAgentDefinitiondataclassChanges
src/claude_agent_sdk/types.py: Addedmcp_servers: dict[str, "McpServerConfig"] | None = Nonefieldtests/test_transport.py: Addedtest_build_command_agents_with_mcp_servers()testexamples/agents.py: Addedagent_with_mcp_servers_example()demonstrating PostgreSQL MCP server usageTest Plan
Related Issues
Fixes #569