{
  "about": "A shared tool's parameters as one project offers them (`narrow`, the tool's `narrow.<project>`): a project may offer a subset and nothing else — `drop` removes optional properties, `enum` keeps some of a property's values. A path names a property; `a.b` is b inside a, `a[].b` is b inside a's array items. Never adds, never retypes. Refused, with `error`: dropping a required property (`required`), a path that is not there (`unknown`), values that are not all among the property's own (`not_subset`). LLeMbas: services/harness_spec.py narrow; CLI: harness.ts narrowParameters.",
  "cases": [
    {
      "parameters": {
        "type": "object",
        "properties": {
          "action": {
            "type": "string",
            "enum": [
              "create",
              "edit",
              "delete"
            ]
          },
          "id": {
            "type": "string"
          },
          "scope": {
            "type": "string",
            "enum": [
              "project",
              "global"
            ]
          }
        },
        "required": [
          "action"
        ]
      },
      "narrow": {},
      "expect": {
        "parameters": {
          "type": "object",
          "properties": {
            "action": {
              "type": "string",
              "enum": [
                "create",
                "edit",
                "delete"
              ]
            },
            "id": {
              "type": "string"
            },
            "scope": {
              "type": "string",
              "enum": [
                "project",
                "global"
              ]
            }
          },
          "required": [
            "action"
          ]
        }
      }
    },
    {
      "parameters": {
        "type": "object",
        "properties": {
          "action": {
            "type": "string",
            "enum": [
              "create",
              "edit",
              "delete"
            ]
          },
          "id": {
            "type": "string"
          },
          "scope": {
            "type": "string",
            "enum": [
              "project",
              "global"
            ]
          }
        },
        "required": [
          "action"
        ]
      },
      "narrow": {
        "drop": [
          "scope"
        ]
      },
      "expect": {
        "parameters": {
          "type": "object",
          "properties": {
            "action": {
              "type": "string",
              "enum": [
                "create",
                "edit",
                "delete"
              ]
            },
            "id": {
              "type": "string"
            }
          },
          "required": [
            "action"
          ]
        }
      }
    },
    {
      "parameters": {
        "type": "object",
        "properties": {
          "action": {
            "type": "string",
            "enum": [
              "create",
              "edit",
              "delete"
            ]
          },
          "id": {
            "type": "string"
          },
          "scope": {
            "type": "string",
            "enum": [
              "project",
              "global"
            ]
          }
        },
        "required": [
          "action"
        ]
      },
      "narrow": {
        "enum": {
          "action": [
            "create",
            "delete"
          ]
        }
      },
      "expect": {
        "parameters": {
          "type": "object",
          "properties": {
            "action": {
              "type": "string",
              "enum": [
                "create",
                "delete"
              ]
            },
            "id": {
              "type": "string"
            },
            "scope": {
              "type": "string",
              "enum": [
                "project",
                "global"
              ]
            }
          },
          "required": [
            "action"
          ]
        }
      }
    },
    {
      "parameters": {
        "type": "object",
        "properties": {
          "operations": {
            "type": "array",
            "items": {
              "type": "object",
              "properties": {
                "action": {
                  "type": "string",
                  "enum": [
                    "create",
                    "patch",
                    "write_file",
                    "delete"
                  ]
                },
                "name": {
                  "type": "string"
                },
                "file_path": {
                  "type": "string"
                }
              },
              "required": [
                "action",
                "name"
              ]
            }
          }
        },
        "required": [
          "operations"
        ]
      },
      "narrow": {
        "drop": [
          "operations[].file_path"
        ],
        "enum": {
          "operations[].action": [
            "create",
            "patch",
            "delete"
          ]
        }
      },
      "expect": {
        "parameters": {
          "type": "object",
          "properties": {
            "operations": {
              "type": "array",
              "items": {
                "type": "object",
                "properties": {
                  "action": {
                    "type": "string",
                    "enum": [
                      "create",
                      "patch",
                      "delete"
                    ]
                  },
                  "name": {
                    "type": "string"
                  }
                },
                "required": [
                  "action",
                  "name"
                ]
              }
            }
          },
          "required": [
            "operations"
          ]
        }
      }
    },
    {
      "parameters": {
        "type": "object",
        "properties": {
          "action": {
            "type": "string",
            "enum": [
              "create",
              "edit",
              "delete"
            ]
          },
          "id": {
            "type": "string"
          },
          "scope": {
            "type": "string",
            "enum": [
              "project",
              "global"
            ]
          }
        },
        "required": [
          "action"
        ]
      },
      "narrow": {
        "drop": [
          "action"
        ]
      },
      "expect": {
        "error": "required"
      }
    },
    {
      "parameters": {
        "type": "object",
        "properties": {
          "action": {
            "type": "string",
            "enum": [
              "create",
              "edit",
              "delete"
            ]
          },
          "id": {
            "type": "string"
          },
          "scope": {
            "type": "string",
            "enum": [
              "project",
              "global"
            ]
          }
        },
        "required": [
          "action"
        ]
      },
      "narrow": {
        "drop": [
          "nope"
        ]
      },
      "expect": {
        "error": "unknown"
      }
    },
    {
      "parameters": {
        "type": "object",
        "properties": {
          "operations": {
            "type": "array",
            "items": {
              "type": "object",
              "properties": {
                "action": {
                  "type": "string",
                  "enum": [
                    "create",
                    "patch",
                    "write_file",
                    "delete"
                  ]
                },
                "name": {
                  "type": "string"
                },
                "file_path": {
                  "type": "string"
                }
              },
              "required": [
                "action",
                "name"
              ]
            }
          }
        },
        "required": [
          "operations"
        ]
      },
      "narrow": {
        "drop": [
          "operations[].nope"
        ]
      },
      "expect": {
        "error": "unknown"
      }
    },
    {
      "parameters": {
        "type": "object",
        "properties": {
          "action": {
            "type": "string",
            "enum": [
              "create",
              "edit",
              "delete"
            ]
          },
          "id": {
            "type": "string"
          },
          "scope": {
            "type": "string",
            "enum": [
              "project",
              "global"
            ]
          }
        },
        "required": [
          "action"
        ]
      },
      "narrow": {
        "enum": {
          "action": [
            "create",
            "rename"
          ]
        }
      },
      "expect": {
        "error": "not_subset"
      }
    },
    {
      "parameters": {
        "type": "object",
        "properties": {
          "action": {
            "type": "string",
            "enum": [
              "create",
              "edit",
              "delete"
            ]
          },
          "id": {
            "type": "string"
          },
          "scope": {
            "type": "string",
            "enum": [
              "project",
              "global"
            ]
          }
        },
        "required": [
          "action"
        ]
      },
      "narrow": {
        "enum": {
          "id": [
            "a"
          ]
        }
      },
      "expect": {
        "error": "not_subset"
      }
    }
  ]
}