Class: SwarmMemory::Tools::LoadSkill

Inherits:
SwarmSDK::Tools::Base
  • Object
show all
Defined in:
lib/swarm_memory/tools/load_skill.rb

Overview

Tool for loading skills from memory and dynamically swapping agent tools

LoadSkill reads a skill from memory, validates it, and swaps the agent's mutable tools to match the skill's requirements. Immutable tools (Memory*, Think, LoadSkill) are always preserved.

Skills must:

  • Be stored in the skill/ hierarchy
  • Have type: 'skill' in metadata
  • Include tools array in metadata (optional)
  • Include permissions hash in metadata (optional)

Instance Method Summary collapse

Constructor Details

#initialize(storage:, agent_name:, chat:, tool_configurator: nil, agent_definition: nil) ⇒ LoadSkill

Initialize with storage and chat context

Parameters:

  • storage (Core::Storage) —

    Memory storage

  • agent_name (Symbol) —

    Agent identifier

  • chat (SwarmSDK::Agent::Chat) —

    The agent's chat instance

  • tool_configurator (SwarmSDK::ToolConfigurator) (defaults to: nil) —

    For creating tools (unused in Plan 025)

  • agent_definition (SwarmSDK::Agent::Definition) (defaults to: nil) —

    For permissions (unused in Plan 025)



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# File 'lib/swarm_memory/tools/load_skill.rb', line 138

def initialize(storage:, agent_name:, chat:, tool_configurator: nil, agent_definition: nil)
  super()
  @storage = storage
  @agent_name = agent_name
  @chat = chat
  # NOTE: tool_configurator and agent_definition kept for API compatibility
  # but unused in Plan 025 (tools come from registry, not recreation)
end

Instance Method Details

#execute(file_path:) ⇒ String

Execute the tool (Plan 025: Simplified - no tool swapping)

Parameters:

  • file_path (String) —

    Path to skill in memory

Returns:

  • (String) —

    Skill content with line numbers, or error message



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# File 'lib/swarm_memory/tools/load_skill.rb', line 156

def execute(file_path:)
  # 1. Validate path starts with skill/
  unless file_path.start_with?("skill/")
    return validation_error("Skills must be stored in skill/ hierarchy. Got: #{file_path}")
  end

  # 2. Read entry with metadata
  begin
    entry = @storage.read_entry(file_path: file_path)
  rescue ArgumentError => e
    return validation_error(e.message)
  end

  # 3. Validate it's a skill
  unless entry.metadata && entry.metadata["type"] == "skill"
    type = entry.metadata&.dig("type") || "none"
    return validation_error("memory://#{file_path} is not a skill (type: #{type})")
  end

  # 4. Extract tool requirements and permissions
  required_tools = entry.metadata["tools"]
  permissions = entry.metadata["permissions"] || {}

  # 5. Validate tools exist in registry (only if tools are specified and non-empty)
  if required_tools && !required_tools.empty?
    begin
      validate_skill_tools(required_tools)
    rescue ArgumentError => e
      return validation_error(e.message)
    end
  end

  # 6. Create and set skill state
  # Note: tools: nil or tools: [] both mean "no restriction" (keep all tools)
  skill_state = SwarmMemory::SkillState.new(
    file_path: file_path,
    tools: required_tools, # May be nil or [] (no restriction)
    permissions: permissions,
  )
  @chat.load_skill_state(skill_state)

  # 7. Activate tools if skill restricts them
  # If no restriction (nil or []), tools remain unchanged
  if skill_state.restricts_tools?
    @chat.activate_tools_for_prompt
  end
  # Otherwise, tools stay as-is (no swap)

  # 8. Return content with confirmation message
  title = entry.title || "Untitled Skill"
  result = "Loaded skill: #{title}\n\n"
  result += format_with_line_numbers(entry.content)

  # 9. Add system reminder if tools were restricted
  if skill_state.restricts_tools?
    result += "\n\n"
    result += build_toolset_update_reminder(required_tools)
  end

  result
end

#name ⇒ Object

Override name to return simple "LoadSkill"



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# File 'lib/swarm_memory/tools/load_skill.rb', line 148

def name
  "LoadSkill"
end