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Plan changed asset sync

plan_sync
Read-onlyIdempotent

Compare the versions in assets/spriteship/spriteship.lock.json with current SpriteShip state in one call. Returns unchanged/changed/unavailable per character, asset, map, or UI pack; exact animation frame-count/FPS/collision, revision, runtime-intent, map-shape and UI component summaries when the previous lock entry includes the snapshot returned by an earlier call; and explicit fetch/download/review-removal actions. Existing v1 lock files without snapshots still detect version changes, then upgrade by saving each returned snapshot. Requests may contain 100 entries; honor Retry-After if the weighted sync budget is reached. Never delete local files for an unavailable entity without user confirmation.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
entitiesYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedInput schema / properties / entities / items / properties / version / description
      Previous value: -"contentVersion for a character or the exact UI pack export; updatedAt for an asset or map."New value: +"contentVersion for a character, map or the exact UI pack export; updatedAt for an asset."
  2. Changed2 schema fields changed
    • changedInput schema / properties / entities / items / properties / engine / description
      Previous value: -"Export engine already used by this lock entry. Defaults to phaser; tiled supports maps and UI pack artwork."New value: +"Export engine already used by this lock entry. Defaults to phaser; Sparrow XML supports characters; tiled supports maps and UI pack artwork."
    • changedInput schema / properties / entities / items / properties / engine / enum
      Previous value: -[
      -  "phaser",
      -  "godot",
      -  "unity",
      -  "gamemaker",
      -  "unreal",
      -  "tiled"
      -]New value: +[
      +  "phaser",
      +  "godot",
      +  "unity",
      +  "gamemaker",
      +  "fnf",
      +  "unreal",
      +  "tiled"
      +]
  3. Changed6 schema fields changed
    • addedInput schema / properties / entities / items / properties / artworkOnly
      Added value: +{
      +  "description": "UI pack only: preserve the originally authorized recovery mode; never silently enable it.",
      +  "type": "boolean"
      +}
    • addedInput schema / properties / entities / items / properties / componentIds
      Added value: +{
      +  "description": "UI pack only: preserve the original selected component IDs; omit for the whole pack.",
      +  "items": {
      +    "format": "uuid",
      +    "type": "string"
      +  },
      +  "maxItems": 256,
      +  "minItems": 1,
      +  "type": "array"
      +}
    • changedInput schema / properties / entities / items / properties / engine / description
      Previous value: -"Export engine already used by this lock entry. Defaults to phaser; tiled is map-only."New value: +"Export engine already used by this lock entry. Defaults to phaser; tiled supports maps and UI pack artwork."
    • changedInput schema / properties / entities / items / properties / kind / enum
      Previous value: -[
      -  "character",
      -  "asset",
      -  "map"
      -]New value: +[
      +  "character",
      +  "asset",
      +  "map",
      +  "ui-pack"
      +]
    • changedInput schema / properties / entities / items / properties / snapshot / anyOf
      Previous value: -[
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "animations": {
      -        "additionalProperties": {
      -          "additionalProperties": false,
      -          "properties": {
      -            "collisionBody": {
      -              "anyOf": [
      -                {
      -                  "anyOf": [
      -                    {
      -                      "additionalProperties": false,
      -                      "properties": {
      -                        "cx": {
      -                          "type": "number"
      -                        },
      -                        "cy": {
      -                          "type": "number"
      -                        },
      -                        "hh": {
      -                          "type": "number"
      -                        },
      -                        "hw": {
      -                          "type": "number"
      -                        },
      -                        "kind": {
      -                          "const": "rect",
      -                          "type": "string"
      -                        },
      -                        "rot": {
      -                          "type": "number"
      -                        }
      -                      },
      -                      "required": [
      -                        "kind",
      -                        "cx",
      -                        "cy",
      -                        "hw",
      -                        "hh"
      -                      ],
      -                      "type": "object"
      -                    },
      -                    {
      -                      "additionalProperties": false,
      -                      "properties": {
      -                        "cx": {
      -                          "type": "number"
      -                        },
      -                        "cy": {
      -                          "type": "number"
      -                        },
      -                        "kind": {
      -                          "const": "circle",
      -                          "type": "string"
      -                        },
      -                        "r": {
      -                          "type": "number"
      -                        }
      -                      },
      -                      "required": [
      -                        "kind",
      -                        "cx",
      -                        "cy",
      -                        "r"
      -                      ],
      -                      "type": "object"
      -                    },
      -                    {
      -                      "additionalProperties": false,
      -                      "properties": {
      -                        "kind": {
      -                          "const": "polygon",
      -                          "type": "string"
      -                        },
      -                        "points": {
      -                          "items": {
      -                            "additionalProperties": false,
      -                            "properties": {
      -                              "x": {
      -                                "type": "number"
      -                              },
      -                              "y": {
      -                                "type": "number"
      -                              }
      -                            },
      -                            "required": [
      -                              "x",
      -                              "y"
      -                            ],
      -                            "type": "object"
      -                          },
      -                          "maxItems": 64,
      -                          "minItems": 3,
      -                          "type": "array"
      -                        },
      -                        "rot": {
      -                          "type": "number"
      -                        }
      -                      },
      -                      "required": [
      -                        "kind",
      -                        "points"
      -                      ],
      -                      "type": "object"
      -                    }
      -                  ]
      -                },
      -                {
      -                  "type": "null"
      -                }
      -              ]
      -            },
      -            "displayName": {
      -              "anyOf": [
      -                {
      -                  "maxLength": 200,
      -                  "type": "string"
      -                },
      -                {
      -                  "type": "null"
      -                }
      -              ]
      -            },
      -            "fps": {
      -              "minimum": 0,
      -              "type": "number"
      -            },
      -            "frameCount": {
      -              "minimum": 0,
      -              "type": "integer"
      -            },
      -            "loop": {
      -              "type": "boolean"
      -            }
      -          },
      -          "required": [
      -            "displayName",
      -            "frameCount",
      -            "fps",
      -            "loop",
      -            "collisionBody"
      -          ],
      -          "type": "object"
      -        },
      -        "propertyNames": {
      -          "maxLength": 200
      -        },
      -        "type": "object"
      -      },
      -      "collisionBody": {
      -        "anyOf": [
      -          {
      -            "anyOf": [
      -              {
      -                "additionalProperties": false,
      -                "properties": {
      -                  "cx": {
      -                    "type": "number"
      -                  },
      -                  "cy": {
      -                    "type": "number"
      -                  },
      -                  "hh": {
      -                    "type": "number"
      -                  },
      -                  "hw": {
      -                    "type": "number"
      -                  },
      -                  "kind": {
      -                    "const": "rect",
      -                    "type": "string"
      -                  },
      -                  "rot": {
      -                    "type": "number"
      -                  }
      -                },
      -                "required": [
      -                  "kind",
      -                  "cx",
      -                  "cy",
      -                  "hw",
      -                  "hh"
      -                ],
      -                "type": "object"
      -              },
      -              {
      -                "additionalProperties": false,
      -                "properties": {
      -                  "cx": {
      -                    "type": "number"
      -                  },
      -                  "cy": {
      -                    "type": "number"
      -                  },
      -                  "kind": {
      -                    "const": "circle",
      -                    "type": "string"
      -                  },
      -                  "r": {
      -                    "type": "number"
      -                  }
      -                },
      -                "required": [
      -                  "kind",
      -                  "cx",
      -                  "cy",
      -                  "r"
      -                ],
      -                "type": "object"
      -              },
      -              {
      -                "additionalProperties": false,
      -                "properties": {
      -                  "kind": {
      -                    "const": "polygon",
      -                    "type": "string"
      -                  },
      -                  "points": {
      -                    "items": {
      -                      "additionalProperties": false,
      -                      "properties": {
      -                        "x": {
      -                          "type": "number"
      -                        },
      -                        "y": {
      -                          "type": "number"
      -                        }
      -                      },
      -                      "required": [
      -                        "x",
      -                        "y"
      -                      ],
      -                      "type": "object"
      -                    },
      -                    "maxItems": 64,
      -                    "minItems": 3,
      -                    "type": "array"
      -                  },
      -                  "rot": {
      -                    "type": "number"
      -                  }
      -                },
      -                "required": [
      -                  "kind",
      -                  "points"
      -                ],
      -                "type": "object"
      -              }
      -            ]
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ]
      -      },
      -      "frameSize": {
      -        "anyOf": [
      -          {
      -            "exclusiveMinimum": 0,
      -            "type": "integer"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ]
      -      },
      -      "kind": {
      -        "const": "character",
      -        "type": "string"
      -      },
      -      "name": {
      -        "maxLength": 300,
      -        "type": "string"
      -      }
      -    },
      -    "required": [
      -      "kind",
      -      "name",
      -      "frameSize",
      -      "collisionBody",
      -      "animations"
      -    ],
      -    "type": "object"
      -  },
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "animationPairs": {
      -        "additionalProperties": {
      -          "additionalProperties": false,
      -          "properties": {
      -            "fps": {
      -              "anyOf": [
      -                {
      -                  "minimum": 0,
      -                  "type": "number"
      -                },
      -                {
      -                  "type": "null"
      -                }
      -              ]
      -            },
      -            "frameCount": {
      -              "anyOf": [
      -                {
      -                  "minimum": 0,
      -                  "type": "integer"
      -                },
      -                {
      -                  "type": "null"
      -                }
      -              ]
      -            },
      -            "iterationCount": {
      -              "minimum": 0,
      -              "type": "integer"
      -            },
      -            "label": {
      -              "anyOf": [
      -                {
      -                  "maxLength": 300,
      -                  "type": "string"
      -                },
      -                {
      -                  "type": "null"
      -                }
      -              ]
      -            }
      -          },
      -          "required": [
      -            "label",
      -            "frameCount",
      -            "fps",
      -            "iterationCount"
      -          ],
      -          "type": "object"
      -        },
      -        "propertyNames": {
      -          "maxLength": 200
      -        },
      -        "type": "object"
      -      },
      -      "currentIterationId": {
      -        "anyOf": [
      -          {
      -            "maxLength": 300,
      -            "type": "string"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ]
      -      },
      -      "hasAnimation": {
      -        "type": "boolean"
      -      },
      -      "iterationCount": {
      -        "minimum": 0,
      -        "type": "integer"
      -      },
      -      "kind": {
      -        "const": "asset",
      -        "type": "string"
      -      },
      -      "name": {
      -        "maxLength": 300,
      -        "type": "string"
      -      },
      -      "runtimeUse": {
      -        "maxLength": 100,
      -        "type": "string"
      -      },
      -      "slug": {
      -        "anyOf": [
      -          {
      -            "maxLength": 200,
      -            "type": "string"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ]
      -      },
      -      "tileRuntimeUses": {
      -        "items": {
      -          "maxLength": 200,
      -          "type": "string"
      -        },
      -        "maxItems": 256,
      -        "type": "array"
      -      }
      -    },
      -    "required": [
      -      "kind",
      -      "name",
      -      "slug",
      -      "currentIterationId",
      -      "iterationCount",
      -      "hasAnimation",
      -      "runtimeUse",
      -      "tileRuntimeUses",
      -      "animationPairs"
      -    ],
      -    "type": "object"
      -  },
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "gridSize": {
      -        "exclusiveMinimum": 0,
      -        "type": "integer"
      -      },
      -      "hasMapData": {
      -        "type": "boolean"
      -      },
      -      "heightPx": {
      -        "exclusiveMinimum": 0,
      -        "type": "integer"
      -      },
      -      "kind": {
      -        "const": "map",
      -        "type": "string"
      -      },
      -      "name": {
      -        "maxLength": 300,
      -        "type": "string"
      -      },
      -      "widthPx": {
      -        "exclusiveMinimum": 0,
      -        "type": "integer"
      -      }
      -    },
      -    "required": [
      -      "kind",
      -      "name",
      -      "widthPx",
      -      "heightPx",
      -      "gridSize",
      -      "hasMapData"
      -    ],
      -    "type": "object"
      -  }
      -]New value: +[
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "animations": {
      +        "additionalProperties": {
      +          "additionalProperties": false,
      +          "properties": {
      +            "collisionBody": {
      +              "anyOf": [
      +                {
      +                  "anyOf": [
      +                    {
      +                      "additionalProperties": false,
      +                      "properties": {
      +                        "cx": {
      +                          "type": "number"
      +                        },
      +                        "cy": {
      +                          "type": "number"
      +                        },
      +                        "hh": {
      +                          "type": "number"
      +                        },
      +                        "hw": {
      +                          "type": "number"
      +                        },
      +                        "kind": {
      +                          "const": "rect",
      +                          "type": "string"
      +                        },
      +                        "rot": {
      +                          "type": "number"
      +                        }
      +                      },
      +                      "required": [
      +                        "kind",
      +                        "cx",
      +                        "cy",
      +                        "hw",
      +                        "hh"
      +                      ],
      +                      "type": "object"
      +                    },
      +                    {
      +                      "additionalProperties": false,
      +                      "properties": {
      +                        "cx": {
      +                          "type": "number"
      +                        },
      +                        "cy": {
      +                          "type": "number"
      +                        },
      +                        "kind": {
      +                          "const": "circle",
      +                          "type": "string"
      +                        },
      +                        "r": {
      +                          "type": "number"
      +                        }
      +                      },
      +                      "required": [
      +                        "kind",
      +                        "cx",
      +                        "cy",
      +                        "r"
      +                      ],
      +                      "type": "object"
      +                    },
      +                    {
      +                      "additionalProperties": false,
      +                      "properties": {
      +                        "kind": {
      +                          "const": "polygon",
      +                          "type": "string"
      +                        },
      +                        "points": {
      +                          "items": {
      +                            "additionalProperties": false,
      +                            "properties": {
      +                              "x": {
      +                                "type": "number"
      +                              },
      +                              "y": {
      +                                "type": "number"
      +                              }
      +                            },
      +                            "required": [
      +                              "x",
      +                              "y"
      +                            ],
      +                            "type": "object"
      +                          },
      +                          "maxItems": 64,
      +                          "minItems": 3,
      +                          "type": "array"
      +                        },
      +                        "rot": {
      +                          "type": "number"
      +                        }
      +                      },
      +                      "required": [
      +                        "kind",
      +                        "points"
      +                      ],
      +                      "type": "object"
      +                    }
      +                  ]
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ]
      +            },
      +            "displayName": {
      +              "anyOf": [
      +                {
      +                  "maxLength": 200,
      +                  "type": "string"
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ]
      +            },
      +            "fps": {
      +              "minimum": 0,
      +              "type": "number"
      +            },
      +            "frameCount": {
      +              "minimum": 0,
      +              "type": "integer"
      +            },
      +            "loop": {
      +              "type": "boolean"
      +            }
      +          },
      +          "required": [
      +            "displayName",
      +            "frameCount",
      +            "fps",
      +            "loop",
      +            "collisionBody"
      +          ],
      +          "type": "object"
      +        },
      +        "propertyNames": {
      +          "maxLength": 200
      +        },
      +        "type": "object"
      +      },
      +      "collisionBody": {
      +        "anyOf": [
      +          {
      +            "anyOf": [
      +              {
      +                "additionalProperties": false,
      +                "properties": {
      +                  "cx": {
      +                    "type": "number"
      +                  },
      +                  "cy": {
      +                    "type": "number"
      +                  },
      +                  "hh": {
      +                    "type": "number"
      +                  },
      +                  "hw": {
      +                    "type": "number"
      +                  },
      +                  "kind": {
      +                    "const": "rect",
      +                    "type": "string"
      +                  },
      +                  "rot": {
      +                    "type": "number"
      +                  }
      +                },
      +                "required": [
      +                  "kind",
      +                  "cx",
      +                  "cy",
      +                  "hw",
      +                  "hh"
      +                ],
      +                "type": "object"
      +              },
      +              {
      +                "additionalProperties": false,
      +                "properties": {
      +                  "cx": {
      +                    "type": "number"
      +                  },
      +                  "cy": {
      +                    "type": "number"
      +                  },
      +                  "kind": {
      +                    "const": "circle",
      +                    "type": "string"
      +                  },
      +                  "r": {
      +                    "type": "number"
      +                  }
      +                },
      +                "required": [
      +                  "kind",
      +                  "cx",
      +                  "cy",
      +                  "r"
      +                ],
      +                "type": "object"
      +              },
      +              {
      +                "additionalProperties": false,
      +                "properties": {
      +                  "kind": {
      +                    "const": "polygon",
      +                    "type": "string"
      +                  },
      +                  "points": {
      +                    "items": {
      +                      "additionalProperties": false,
      +                      "properties": {
      +                        "x": {
      +                          "type": "number"
      +                        },
      +                        "y": {
      +                          "type": "number"
      +                        }
      +                      },
      +                      "required": [
      +                        "x",
      +                        "y"
      +                      ],
      +                      "type": "object"
      +                    },
      +                    "maxItems": 64,
      +                    "minItems": 3,
      +                    "type": "array"
      +                  },
      +                  "rot": {
      +                    "type": "number"
      +                  }
      +                },
      +                "required": [
      +                  "kind",
      +                  "points"
      +                ],
      +                "type": "object"
      +              }
      +            ]
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ]
      +      },
      +      "frameSize": {
      +        "anyOf": [
      +          {
      +            "exclusiveMinimum": 0,
      +            "type": "integer"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ]
      +      },
      +      "kind": {
      +        "const": "character",
      +        "type": "string"
      +      },
      +      "name": {
      +        "maxLength": 300,
      +        "type": "string"
      +      }
      +    },
      +    "required": [
      +      "kind",
      +      "name",
      +      "frameSize",
      +      "collisionBody",
      +      "animations"
      +    ],
      +    "type": "object"
      +  },
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "animationPairs": {
      +        "additionalProperties": {
      +          "additionalProperties": false,
      +          "properties": {
      +            "fps": {
      +              "anyOf": [
      +                {
      +                  "minimum": 0,
      +                  "type": "number"
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ]
      +            },
      +            "frameCount": {
      +              "anyOf": [
      +                {
      +                  "minimum": 0,
      +                  "type": "integer"
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ]
      +            },
      +            "iterationCount": {
      +              "minimum": 0,
      +              "type": "integer"
      +            },
      +            "label": {
      +              "anyOf": [
      +                {
      +                  "maxLength": 300,
      +                  "type": "string"
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ]
      +            }
      +          },
      +          "required": [
      +            "label",
      +            "frameCount",
      +            "fps",
      +            "iterationCount"
      +          ],
      +          "type": "object"
      +        },
      +        "propertyNames": {
      +          "maxLength": 200
      +        },
      +        "type": "object"
      +      },
      +      "currentIterationId": {
      +        "anyOf": [
      +          {
      +            "maxLength": 300,
      +            "type": "string"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ]
      +      },
      +      "hasAnimation": {
      +        "type": "boolean"
      +      },
      +      "iterationCount": {
      +        "minimum": 0,
      +        "type": "integer"
      +      },
      +      "kind": {
      +        "const": "asset",
      +        "type": "string"
      +      },
      +      "name": {
      +        "maxLength": 300,
      +        "type": "string"
      +      },
      +      "runtimeUse": {
      +        "maxLength": 100,
      +        "type": "string"
      +      },
      +      "slug": {
      +        "anyOf": [
      +          {
      +            "maxLength": 200,
      +            "type": "string"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ]
      +      },
      +      "tileRuntimeUses": {
      +        "items": {
      +          "maxLength": 200,
      +          "type": "string"
      +        },
      +        "maxItems": 256,
      +        "type": "array"
      +      }
      +    },
      +    "required": [
      +      "kind",
      +      "name",
      +      "slug",
      +      "currentIterationId",
      +      "iterationCount",
      +      "hasAnimation",
      +      "runtimeUse",
      +      "tileRuntimeUses",
      +      "animationPairs"
      +    ],
      +    "type": "object"
      +  },
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "gridSize": {
      +        "exclusiveMinimum": 0,
      +        "type": "integer"
      +      },
      +      "hasMapData": {
      +        "type": "boolean"
      +      },
      +      "heightPx": {
      +        "exclusiveMinimum": 0,
      +        "type": "integer"
      +      },
      +      "kind": {
      +        "const": "map",
      +        "type": "string"
      +      },
      +      "name": {
      +        "maxLength": 300,
      +        "type": "string"
      +      },
      +      "widthPx": {
      +        "exclusiveMinimum": 0,
      +        "type": "integer"
      +      }
      +    },
      +    "required": [
      +      "kind",
      +      "name",
      +      "widthPx",
      +      "heightPx",
      +      "gridSize",
      +      "hasMapData"
      +    ],
      +    "type": "object"
      +  },
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "componentCount": {
      +        "minimum": 0,
      +        "type": "integer"
      +      },
      +      "components": {
      +        "additionalProperties": {
      +          "additionalProperties": false,
      +          "properties": {
      +            "configurationHash": {
      +              "anyOf": [
      +                {
      +                  "maxLength": 300,
      +                  "type": "string"
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ]
      +            },
      +            "name": {
      +              "maxLength": 300,
      +              "type": "string"
      +            },
      +            "revisionId": {
      +              "anyOf": [
      +                {
      +                  "maxLength": 300,
      +                  "type": "string"
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ]
      +            },
      +            "status": {
      +              "maxLength": 200,
      +              "type": "string"
      +            }
      +          },
      +          "required": [
      +            "name",
      +            "revisionId",
      +            "configurationHash",
      +            "status"
      +          ],
      +          "type": "object"
      +        },
      +        "propertyNames": {
      +          "maxLength": 200
      +        },
      +        "type": "object"
      +      },
      +      "kind": {
      +        "const": "ui-pack",
      +        "type": "string"
      +      },
      +      "name": {
      +        "maxLength": 300,
      +        "type": "string"
      +      }
      +    },
      +    "required": [
      +      "kind",
      +      "name",
      +      "componentCount",
      +      "components"
      +    ],
      +    "type": "object"
      +  }
      +]
    • changedInput schema / properties / entities / items / properties / version / description
      Previous value: -"contentVersion for a character; updatedAt for an asset or map."New value: +"contentVersion for a character or the exact UI pack export; updatedAt for an asset or map."
  4. Changed1 schema field changed
    • changedInput schema / properties / entities / items / properties / engine / enum
      Previous value: -[
      -  "phaser",
      -  "godot",
      -  "unity",
      -  "gamemaker",
      -  "tiled"
      -]New value: +[
      +  "phaser",
      +  "godot",
      +  "unity",
      +  "gamemaker",
      +  "unreal",
      +  "tiled"
      +]
  5. Added

TDQS

A3.9/5.0
Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already mark this read-only, idempotent, open-world and non-destructive, yet the description adds real behavioral context: a 100-entry request cap, a weighted sync budget with Retry-After, unchanged/changed/unavailable per entity, and the v1-lock upgrade path. The safety instruction 'never delete local files for an unavailable entity without user confirmation' clarifies that destructive follow-up is deliberate and gated.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The core comparison is front-loaded in the first sentence, followed by return-shape and workflow detail. It is dense and relies heavily on semicolon-joined clauses, but each clause conveys operational information and none is filler.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With no output schema, the description carries the return-value burden well by enumerating per-entity status, the metadata returned when a prior snapshot exists, and the action list. Combined with the exhaustive input schema and rate-limit/safety notes, an agent has enough to call it correctly, though the exact result envelope shape is left implicit.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema is richly self-documented with per-property descriptions, so the schema carries the semantics and a baseline of 3 applies. The description only reinforces the 100-item cap and the notion of carrying prior snapshots verbatim, adding little beyond the schema's own field-level text.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

Opens with a concrete verb+resource: compare the versions in assets/spriteship/spriteship.lock.json against current SpriteShip state. It also names the per-entity outputs (unchanged/changed/unavailable) so an agent knows what this produces. It does not need to distinguish itself from a direct sibling because no near-duplicate exists, but it never explicitly positions itself relative to the broader sync/export family.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Usage is implied through workflow detail (v1 lock files still detect changes and upgrade by saving snapshots; honor Retry-After under a weighted budget) rather than stated as when-to-use guidance. No alternative tool is named and no explicit when-not condition is given. Conditions are present but they are operational, not selection guidance.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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