class RubyLLM::MCP::Prompt

A prompt an MCP server offers: messages written by the server and filled in with your arguments. Ask a chat with it like a question.

github.prompts                     # => [#<RubyLLM::MCP::Prompt name: "code_review", ...>]
review = github.prompt(:code_review, code: diff)
review.messages                    # => [#<RubyLLM::Message role: :user, ...>]
chat.ask review

Constants

Argument: An argument a prompt takes.

Attributes

arguments [R]

The arguments the prompt takes, as Argument objects.

description [R]

What the prompt does, or nil.

name [R]

The prompt’s name.

title [R]

A human-readable title, or nil.

Public Instance Methods

messages ()

Source

# File lib/ruby_llm/mcp/prompt.rb, line 50
def messages
  @messages || []
end

Returns the prompt’s messages as Message objects. A prompt from MCP#prompts has none until you fill it in with MCP#prompt.

suggest (**arguments)

Source

# File lib/ruby_llm/mcp/prompt.rb, line 60
def suggest(**arguments)
  @mcp.suggest({ type: 'ref/prompt', name: }, arguments)
end

Asks the server to complete an argument’s partial value. Pass one argument to complete and any others that are already filled in. Returns an Array of suggested values.

github.prompts.first.suggest(language: "ru")  # => ["ruby", "rust"]