Fix init command documentation - clarify MCP enabled by default

[Copilot]

Documentation showed --mcp as an opt-in flag, but source code (init_command.go:74-80) has MCP enabled by default with --mcp hidden for backward compatibility.

Changes

• docs/src/content/docs/setup/cli.md: Updated examples from gh aw init --mcp to gh aw init (default) and gh aw init --no-mcp (skip MCP)
• docs/src/content/docs/setup/mcp-server.md: Removed --mcp from 2 locations, added clarification about default behavior
• install.md: Updated 2 references to use correct syntax

Before/After

# Before (incorrect)
gh aw init --mcp # Also setup MCP server integration

# After (correct)
gh aw init         # MCP enabled by default
gh aw init --no-mcp # Skip MCP server integration

The --mcp flag remains functional but hidden for backward compatibility.

Original prompt

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This section details on the original issue you should resolve

<issue_title>[cli-consistency] Inconsistent init command description between source and documentation</issue_title>
<issue_description>## Issue Description

Command: gh aw init
Type: Documentation inconsistency
Priority: Medium

Current Output (from source code: pkg/cli/init_command.go line 148-149)

Short: "Initialize repository for agentic workflows"

Documentation (docs/src/content/docs/setup/cli.md line 147)

The documentation says:

gh aw init --mcp # Also setup MCP server integration for Copilot Agent

Issue

The documentation uses the deprecated --mcp flag in the example, but according to the source code (lines 74-80 of init_command.go), the flag behavior has changed:

// Determine MCP state: default true, unless --no-mcp is specified
// --mcp flag is kept for backward compatibility (hidden from help)
mcp := !noMcp
if cmd.Flags().Changed("mcp") {
    // If --mcp is explicitly set, use it (backward compatibility)
    mcp = mcpFlag
}

The --mcp flag is hidden and kept only for backward compatibility. The current default is to enable MCP unless --no-mcp is specified.

Suggested Fix

Update the documentation example to:

gh aw init         # Configure .gitattributes, Copilot instructions (MCP enabled by default)
gh aw init --no-mcp # Skip MCP server integration

Or update the description to clarify that MCP is enabled by default:

Configures `.gitattributes` to mark `.lock.yml` files as generated, adds Copilot instructions for better AI assistance, sets up prompt files for workflow creation, and creates `.github/aw/logs/.gitignore` to prevent workflow logs from being committed. MCP server integration is enabled by default. Use `--no-mcp` to skip creating GitHub Actions workflow for MCP server setup and VS Code integration.

AI generated by CLI Consistency Checker

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

• Fixes [cli-consistency] Inconsistent init command description between source and documentation #7244

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