Feature: SkillModel to_domain/from_domain branch coverage (round 2)
  As a developer maintaining the ORM layer
  I want every branch in the domain-conversion helpers tested
  So that models.py achieves near-100 % branch coverage

  # ===================================================================
  # SkillModel.to_domain() — lines 2185-2224
  # Targets: uncovered lines 2188-2189, branch partials on item_type
  #          checks, item_config_str checks, metadata_str check
  # ===================================================================

  Scenario: r2mod- SkillModel.to_domain with None items_rel returns empty lists
    Given a r2mod-SkillModel with no items and no metadata
    When I r2mod-convert the SkillModel to domain
    Then the r2mod-skill tool_refs should be empty
    And the r2mod-skill includes should be empty
    And the r2mod-skill anonymous_tools should be empty
    And the r2mod-skill mcp_servers should be empty
    And the r2mod-skill agent_skills should be empty
    And the r2mod-skill overrides should be empty

  Scenario: r2mod- SkillModel.to_domain with tool_ref items
    Given a r2mod-SkillModel with a tool_ref item named "local/my-tool"
    When I r2mod-convert the SkillModel to domain
    Then the r2mod-skill tool_refs should contain "local/my-tool"

  Scenario: r2mod- SkillModel.to_domain with include item with config overrides
    Given a r2mod-SkillModel with an include item "local/inc" with config overrides
    When I r2mod-convert the SkillModel to domain
    Then the r2mod-skill includes should have 1 entry
    And the r2mod-skill first include name should be "local/inc"
    And the r2mod-skill first include overrides should not be None

  Scenario: r2mod- SkillModel.to_domain with include item without config
    Given a r2mod-SkillModel with an include item "local/inc" without config
    When I r2mod-convert the SkillModel to domain
    Then the r2mod-skill includes should have 1 entry
    And the r2mod-skill first include overrides should be None

  Scenario: r2mod- SkillModel.to_domain with inline_tool item without config (skipped)
    Given a r2mod-SkillModel with an inline_tool item without config
    When I r2mod-convert the SkillModel to domain
    Then the r2mod-skill anonymous_tools should be empty

  Scenario: r2mod- SkillModel.to_domain with mcp_source item without config (skipped)
    Given a r2mod-SkillModel with an mcp_source item without config
    When I r2mod-convert the SkillModel to domain
    Then the r2mod-skill mcp_servers should be empty

  Scenario: r2mod- SkillModel.to_domain with agent_source item
    Given a r2mod-SkillModel with an agent_source item "path/to/agent"
    When I r2mod-convert the SkillModel to domain
    Then the r2mod-skill agent_skills should have 1 entry
    And the r2mod-skill first agent_skill path should be "path/to/agent"

  Scenario: r2mod- SkillModel.to_domain with metadata_json containing overrides
    Given a r2mod-SkillModel with metadata_json containing overrides
    When I r2mod-convert the SkillModel to domain
    Then the r2mod-skill overrides should not be empty

  Scenario: r2mod- SkillModel.to_domain with inline_tool and mcp_source with config
    Given a r2mod-SkillModel with inline_tool and mcp_source items with config
    When I r2mod-convert the SkillModel to domain
    Then the r2mod-skill anonymous_tools should have 1 entry
    And the r2mod-skill mcp_servers should have 1 entry

  # ===================================================================
  # SkillModel.from_domain() — lines 2227-2366
  # Targets: ValueError branch, overrides branch, include-as-string,
  #          anonymous_tools-as-dict, mcp_servers-as-dict,
  #          agent_skills-as-string
  # ===================================================================

  Scenario: r2mod- SkillModel.from_domain raises ValueError for invalid name
    When I r2mod-attempt from_domain on SkillModel with name "badname"
    Then a r2mod-ValueError should have been raised

  Scenario: r2mod- SkillModel.from_domain with no overrides
    When I r2mod-create SkillModel from domain with name "ns/sk" and no overrides
    Then the r2mod-created SkillModel metadata_json should be None

  Scenario: r2mod- SkillModel.from_domain with overrides
    When I r2mod-create SkillModel from domain with name "ns/sk" and overrides
    Then the r2mod-created SkillModel metadata_json should contain "overrides"

  Scenario: r2mod- SkillModel.from_domain with include as string
    When I r2mod-create SkillModel from domain with includes as strings
    Then the r2mod-created SkillModel should have include items

  Scenario: r2mod- SkillModel.from_domain with anonymous_tools as dict
    When I r2mod-create SkillModel from domain with anonymous_tools as dicts
    Then the r2mod-created SkillModel should have inline_tool items

  Scenario: r2mod- SkillModel.from_domain with mcp_servers as dict
    When I r2mod-create SkillModel from domain with mcp_servers as dicts
    Then the r2mod-created SkillModel should have mcp_source items

  Scenario: r2mod- SkillModel.from_domain with agent_skills as string
    When I r2mod-create SkillModel from domain with agent_skills as strings
    Then the r2mod-created SkillModel should have agent_source items

  Scenario: r2mod- SkillModel.from_domain with anonymous_tools fallback branch
    When I r2mod-create SkillModel from domain with anonymous_tools as plain objects
    Then the r2mod-created SkillModel should have inline_tool items

  Scenario: r2mod- SkillModel.from_domain with mcp_servers fallback branch
    When I r2mod-create SkillModel from domain with mcp_servers as plain objects
    Then the r2mod-created SkillModel should have mcp_source items