Class: PromptObjects::Universal::CreateCapability

Inherits:
Primitive show all
Defined in:
lib/prompt_objects/universal/create_capability.rb

Overview

Universal capability to create new capabilities at runtime. Can create both prompt objects (markdown) and primitives (Ruby code). This enables self-modification - the system can create new specialists and tools.

Instance Attribute Summary

Attributes inherited from Capability

#state

Instance Method Summary collapse

Methods inherited from Primitive

#initialize

Methods inherited from Capability

#descriptor, execution_policy, execution_policy_definition, #execution_policy_definition, #execution_policy_signature, #initialize, #resolved_execution_policy

Constructor Details

This class inherits a constructor from PromptObjects::Primitive

Instance Method Details

#description ⇒ Object 



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# File 'lib/prompt_objects/universal/create_capability.rb', line 15

def description
  "Create a new capability. Use type='prompt_object' for LLM-backed specialists, or type='primitive' for deterministic Ruby tools. " \
    "For prompt objects, capabilities are the exact callable tools/delegates the new object receives; an informational delegate " \
    "does not grant access to that delegate's tools."
end

#name ⇒ Object 



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# File 'lib/prompt_objects/universal/create_capability.rb', line 11

def name
  "create_capability"
end

#parameters ⇒ Object 



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# File 'lib/prompt_objects/universal/create_capability.rb', line 21

def parameters
  {
    type: "object",
    properties: {
      type: {
        type: "string",
        enum: ["prompt_object", "primitive"],
        description: "Type of capability: 'prompt_object' for LLM specialists, 'primitive' for Ruby tools"
      },
      name: {
        type: "string",
        description: "Name for the capability (lowercase, underscores allowed)"
      },
      description: {
        type: "string",
        description: "Brief description of what this capability does"
      },
      # For prompt_objects:
      capabilities: {
        type: "array",
        items: { type: "string" },
        description: "(prompt_object only) Exact tools and delegates this PO may call. Grant direct action tools for every action it must perform; do not use a related PO as a proxy for tools it does not expose."
      },
      identity: {
        type: "string",
        description: "(prompt_object only) Who is this prompt object? Their personality and role."
      },
      behavior: {
        type: "string",
        description: "(prompt_object only) How should this prompt object behave?"
      },
      # For primitives:
      parameters_schema: {
        type: "object",
        description: "(primitive only) JSON Schema for the parameters this primitive accepts"
      },
      ruby_code: {
        type: "string",
        description: "(primitive only) Ruby code for the receive method body. Has access to 'message' (Hash) and 'context'."
      }
    },
    required: ["type", "name", "description"]
  }
end

#receive(message, context:) ⇒ Object 



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# File 'lib/prompt_objects/universal/create_capability.rb', line 66

def receive(message, context:)
  type = message[:type] || message["type"]
  cap_name = message[:name] || message["name"]

  # Validate name
  unless cap_name && cap_name.match?(/\A[a-z][a-z0-9_]*\z/)
    return "Error: Name must be lowercase letters, numbers, and underscores, starting with a letter."
  end

  # Check if already exists
  if context.env.registry.exists?(cap_name)
    return "Error: A capability named '#{cap_name}' already exists."
  end

  result = case type
  when "prompt_object"
    create_prompt_object(message, context)
  when "primitive"
    create_primitive(message, context)
  else
    return "Error: type must be 'prompt_object' or 'primitive'"
  end

  # If creation succeeded, add the new capability to the creating PO
  if result && !result.start_with?("Error:")
    added_msg = add_to_creator(cap_name, context)
    result = "#{result} #{added_msg}" if added_msg
  end

  result
end