feat: scenario tools [CW-4597] (#11908)

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Sojan Jose <sojan@pepalo.com>

enterprise/app/models/concerns/captain_tools_helpers.rb

@@ -0,0 +1,76 @@
+# Provides helper methods for working with Captain agent tools including
+# tool resolution, text parsing, and metadata retrieval.
+module Concerns::CaptainToolsHelpers
+  extend ActiveSupport::Concern
+
+  # Regular expression pattern for matching tool references in text.
+  # Matches patterns like [Tool name](tool://tool_id) following markdown link syntax.
+  TOOL_REFERENCE_REGEX = %r{\[[^\]]+\]\(tool://([^/)]+)\)}
+
+  class_methods do
+    # Returns all available agent tools with their metadata.
+    # Only includes tools that have corresponding class files and can be resolved.
+    #
+    # @return [Array<Hash>] Array of tool hashes with :id, :title, :description, :icon
+    def available_agent_tools
+      @available_agent_tools ||= load_agent_tools
+    end
+
+    # Resolves a tool class from a tool ID.
+    # Converts snake_case tool IDs to PascalCase class names and constantizes them.
+    #
+    # @param tool_id [String] The snake_case tool identifier
+    # @return [Class, nil] The tool class if found, nil if not resolvable
+    def resolve_tool_class(tool_id)
+      class_name = "Captain::Tools::#{tool_id.classify}Tool"
+      class_name.safe_constantize
+    end
+
+    # Returns an array of all available tool IDs.
+    # Convenience method that extracts just the IDs from available_agent_tools.
+    #
+    # @return [Array<String>] Array of available tool IDs
+    def available_tool_ids
+      @available_tool_ids ||= available_agent_tools.map { |tool| tool[:id] }
+    end
+
+    private
+
+    # Loads agent tools from the YAML configuration file.
+    # Filters out tools that cannot be resolved to actual classes.
+    #
+    # @return [Array<Hash>] Array of resolvable tools with metadata
+    # @api private
+    def load_agent_tools
+      tools_config = YAML.load_file(Rails.root.join('config/agents/tools.yml'))
+
+      tools_config.filter_map do |tool_config|
+        tool_class = resolve_tool_class(tool_config['id'])
+
+        if tool_class
+          {
+            id: tool_config['id'],
+            title: tool_config['title'],
+            description: tool_config['description'],
+            icon: tool_config['icon']
+          }
+        else
+          Rails.logger.warn "Tool class not found for ID: #{tool_config['id']}"
+          nil
+        end
+      end
+    end
+  end
+
+  # Extracts tool IDs from text containing tool references.
+  # Parses text for (tool://tool_id) patterns and returns unique tool IDs.
+  #
+  # @param text [String] Text to parse for tool references
+  # @return [Array<String>] Array of unique tool IDs found in the text
+  def extract_tool_ids_from_text(text)
+    return [] if text.blank?
+
+    tool_matches = text.scan(TOOL_REFERENCE_REGEX)
+    tool_matches.flatten.uniq
+  end
+end