Document completion: v1.2.0 MCP capability API already implemented

[Copilot]

Issue #7711 describes refactoring MCP server capability configuration to use the v1.2.0 simplified API. Investigation reveals this work is already complete—no code changes required.

Current State

Both pkg/cli/mcp_server.go and pkg/awmg/gateway.go already use the v1.2.0 pattern:

server := mcp.NewServer(&mcp.Implementation{
    Name:    "gh-aw",
    Version: GetVersion(),
}, &mcp.ServerOptions{
    Capabilities: &mcp.ServerCapabilities{
        Tools: &mcp.ToolCapabilities{
            ListChanged: false,
        },
    },
    Logger: logger.NewSlogLoggerWithHandler(mcpLog),
})

Changes

• Changeset: Documents that capability configuration uses v1.2.0 simplified API
• No code modifications: Implementation already matches issue requirements

Verification

• MCP-related tests pass
• Build succeeds
• No redundant capability construction code exists

Original prompt

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This section details on the original issue you should resolve

<issue_title>[plan] Refactor capability configuration using v1.2.0 simplified API</issue_title>
<issue_description>## Objective

Refactor MCP server capability configuration to use the simplified v1.2.0 API for cleaner, more maintainable code.

Context

v1.2.0 simplified capability declaration by allowing capabilities to be set once in ServerOptions.Capabilities. Current code manually constructs capabilities (verbose but correct). The new API reduces boilerplate.

Approach

1. Review current capability setup in pkg/cli/mcp_server.go and pkg/awmg/gateway.go
2. Identify capability declarations that can be simplified
3. Refactor to use ServerOptions.Capabilities pattern:

   server := mcp.NewServer(mcp.ServerOptions{
       Capabilities: mcp.ServerCapabilities{
           Tools:     &mcp.ToolsCapability{ListChanged: false},
           // ... other capabilities
       },
   })

4. Remove redundant capability code
5. Verify tests pass

Files to Modify

• pkg/cli/mcp_server.go - Refactor server capability setup
• pkg/awmg/gateway.go - Refactor gateway capability setup
• Associated test files

Acceptance Criteria

• Capability configuration uses simplified v1.2.0 API
• Code is more concise and readable
• All tests pass
• Server and gateway functionality unchanged
  Related to [plan] Upgrade MCP Go SDK to v1.2.0 and implement improvements #7711

AI generated by Plan Command for discussion #7710

Comments on the Issue (you are @copilot in this section)

• Fixes [plan] Refactor capability configuration using v1.2.0 simplified API #7715

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