feat: MCPServer resource documentation

[sicoyle]

MCPServer Documentation

Documentation for the MCPServer resource introduced in Dapr 1.18.

Scope

• How-to guide: Declare MCPServer resource, list tools, call tools via workflow API
• MCPServer spec reference: All fields (endpoint, auth, middleware, catalog)
• Concept doc: MCP Server connectivity overview, transport types, durable execution model
• Middleware hooks: beforeCallTool/afterCallTool, mutate semantics, authz gates
• Auth docs: OAuth2 client credentials flow, SPIFFE JWT injection
• Feature flags page: Add MCPServerResource preview feature

Blocked by

• feat(mcp): add built-in mcp wf orchestration engine for mcpserver crd dapr#9731 (MCPServer in-process workflow engine)

Related

• feat(mcp): add init mcp server resource dapr#9685 (CRD plumbing - merged)
• feat(mcp): add proposal for new mcpserver resource proposals#100 (proposal - merged)