mcpserver

var McpCmd = &cli.Command{
	Name:  "mcp",
	Usage: "Serve the knot MCP server over stdio, proxying a remote knot server",
	Description: `Runs knot as a local MCP server on stdio, forwarding tool calls to a remote knot server's /mcp endpoint over HTTP.

Intended for MCP hosts that launch the server as a subprocess and only speak stdio, e.g. Claude Desktop:

    {"mcpServers": {"knot": {"command": "knot", "args": ["mcp", "--alias", "default"]}}}

This sidesteps the host's HTTPS-only rule for remote servers: the subprocess talks plain HTTP to the knot server, and authentication comes from the connection config rather than the host's — the API token never appears in the host's configuration.

The connection is resolved like other client commands: an explicit --server/--token pair, else inside a space the agent socket, else the --alias section written by 'knot connect'.

Stdout is the MCP protocol; all diagnostics go to stderr.`,
	MaxArgs: cli.NoArgs,
	Flags: []cli.Flag{
		&cli.StringFlag{
			Name:    "server",
			Aliases: []string{"s"},
			Usage:   "The address of the remote knot server.",
			EnvVars: []string{config.CONFIG_ENV_PREFIX + "_SERVER"},
		},
		&cli.StringFlag{
			Name:    "token",
			Aliases: []string{"t"},
			Usage:   "API token for the remote knot server.",
			EnvVars: []string{config.CONFIG_ENV_PREFIX + "_TOKEN"},
		},
		&cli.StringFlag{
			Name:         "alias",
			Aliases:      []string{"a"},
			Usage:        "The configured server alias to talk to.",
			DefaultValue: "default",
		},
		&cli.BoolFlag{
			Name:         "tls-skip-verify",
			Usage:        "Skip TLS verification when talking to the server.",
			ConfigPath:   []string{"tls.skip_verify"},
			EnvVars:      []string{config.CONFIG_ENV_PREFIX + "_TLS_SKIP_VERIFY"},
			DefaultValue: true,
		},
		&cli.BoolFlag{
			Name:  "show-all",
			Usage: "Also expose discoverable tools, not just native ones.",
		},
	},
	Run: func(ctx context.Context, cmd *cli.Command) error {

		if err := serveMCP(ctx, cmd); err != nil {
			fmt.Fprintln(os.Stderr, "Error:", err)
			os.Exit(1)
		}
		return nil
	},
}