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AniList MCP Server

Get today's birthday characters or staff

get_todays_birthdays
Read-only

Find anime characters or staff celebrating birthdays today on AniList. Choose character or staff type, with optional full bios, to get up to 50 matching profiles quickly.

Instructions

List AniList characters or staff members whose birthday (month/day) is today, up to 50 results (a fixed cap, not paginated — entries beyond 50 are silently omitted, not an error). Returns character-shaped or staff-shaped objects for kind: CHARACTER/STAFF respectively, but a lighter fetch than get_character/get_staff: it does NOT include those tools' media/staffMedia filmography, nor each entry's bio (description) unless you set includeDescription — call get_character/get_staff by ID for an entry's full roles/works and bio, don't read a missing filmography here as 'none'.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
kindYesWhether to list characters or staff members.
includeDescriptionNoAlso fetch each result's full bio (`description`). Kept off by default — a bio can run to several thousand characters, and always including it would burn tokens on text you may not need; use get_character/get_staff for a single entry's full bio instead.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultsYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed5 schema fields changedv0.9.0
    • removedOutput schema / properties / results / items / properties / description / anyOf
      Removed value: -[
      -  {
      -    "type": "string"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • addedOutput schema / properties / results / items / properties / description / type
      Added value: +[
      +  "string",
      +  "null"
      +]
    • removedOutput schema / properties / results / items / properties / isFavourite / anyOf
      Removed value: -[
      -  {
      -    "type": "boolean"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • addedOutput schema / properties / results / items / properties / isFavourite / type
      Added value: +[
      +  "boolean",
      +  "null"
      +]
    • changedOutput schema / properties / results / items / properties / name / anyOf
      Previous value: -[
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "full": {
      -        "anyOf": [
      -          {
      -            "type": "string"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ]
      -      },
      -      "native": {
      -        "anyOf": [
      -          {
      -            "type": "string"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ]
      -      }
      -    },
      -    "type": "object"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "full": {
      +        "type": [
      +          "string",
      +          "null"
      +        ]
      +      },
      +      "native": {
      +        "type": [
      +          "string",
      +          "null"
      +        ]
      +      }
      +    },
      +    "type": "object"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
  2. Changed1 schema field changedv0.8.0
    • addedInput schema / properties / includeDescription
      Added value: +{
      +  "default": false,
      +  "description": "Also fetch each result's full bio (`description`). Kept off by default — a bio can run to several thousand characters, and always including it would burn tokens on text you may not need; use get_character/get_staff for a single entry's full bio instead.",
      +  "type": "boolean"
      +}
  3. Changed3 schema fields changedv0.7.1
    • removedOutput schema / properties / results / anyOf
      Removed value: -[
      -  {
      -    "items": {
      -      "additionalProperties": {},
      -      "properties": {
      -        "description": {
      -          "anyOf": [
      -            {
      -              "type": "string"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "favourites": {
      -          "anyOf": [
      -            {
      -              "maximum": 9007199254740991,
      -              "minimum": -9007199254740991,
      -              "type": "integer"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "id": {
      -          "maximum": 9007199254740991,
      -          "minimum": -9007199254740991,
      -          "type": "integer"
      -        },
      -        "image": {
      -          "anyOf": [
      -            {
      -              "additionalProperties": false,
      -              "properties": {
      -                "large": {
      -                  "anyOf": [
      -                    {
      -                      "type": "string"
      -                    },
      -                    {
      -                      "type": "null"
      -                    }
      -                  ]
      -                }
      -              },
      -              "type": "object"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "isFavourite": {
      -          "anyOf": [
      -            {
      -              "type": "boolean"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "media": {
      -          "anyOf": [
      -            {
      -              "additionalProperties": false,
      -              "properties": {
      -                "edges": {
      -                  "items": {
      -                    "additionalProperties": {},
      -                    "properties": {
      -                      "characterRole": {
      -                        "anyOf": [
      -                          {
      -                            "type": "string"
      -                          },
      -                          {
      -                            "type": "null"
      -                          }
      -                        ]
      -                      },
      -                      "node": {
      -                        "anyOf": [
      -                          {
      -                            "additionalProperties": {},
      -                            "properties": {
      -                              "format": {
      -                                "anyOf": [
      -                                  {
      -                                    "type": "string"
      -                                  },
      -                                  {
      -                                    "type": "null"
      -                                  }
      -                                ]
      -                              },
      -                              "id": {
      -                                "maximum": 9007199254740991,
      -                                "minimum": -9007199254740991,
      -                                "type": "integer"
      -                              },
      -                              "title": {
      -                                "anyOf": [
      -                                  {
      -                                    "additionalProperties": false,
      -                                    "properties": {
      -                                      "english": {
      -                                        "anyOf": [
      -                                          {
      -                                            "type": "string"
      -                                          },
      -                                          {
      -                                            "type": "null"
      -                                          }
      -                                        ]
      -                                      },
      -                                      "romaji": {
      -                                        "anyOf": [
      -                                          {
      -                                            "type": "string"
      -                                          },
      -                                          {
      -                                            "type": "null"
      -                                          }
      -                                        ]
      -                                      }
      -                                    },
      -                                    "type": "object"
      -                                  },
      -                                  {
      -                                    "type": "null"
      -                                  }
      -                                ]
      -                              },
      -                              "type": {
      -                                "anyOf": [
      -                                  {
      -                                    "type": "string"
      -                                  },
      -                                  {
      -                                    "type": "null"
      -                                  }
      -                                ]
      -                              }
      -                            },
      -                            "required": [
      -                              "id"
      -                            ],
      -                            "type": "object"
      -                          },
      -                          {
      -                            "type": "null"
      -                          }
      -                        ]
      -                      }
      -                    },
      -                    "type": "object"
      -                  },
      -                  "type": "array"
      -                }
      -              },
      -              "required": [
      -                "edges"
      -              ],
      -              "type": "object"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "name": {
      -          "anyOf": [
      -            {
      -              "additionalProperties": false,
      -              "properties": {
      -                "full": {
      -                  "anyOf": [
      -                    {
      -                      "type": "string"
      -                    },
      -                    {
      -                      "type": "null"
      -                    }
      -                  ]
      -                },
      -                "native": {
      -                  "anyOf": [
      -                    {
      -                      "type": "string"
      -                    },
      -                    {
      -                      "type": "null"
      -                    }
      -                  ]
      -                }
      -              },
      -              "type": "object"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "siteUrl": {
      -          "anyOf": [
      -            {
      -              "type": "string"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        }
      -      },
      -      "required": [
      -        "id"
      -      ],
      -      "type": "object"
      -    },
      -    "type": "array"
      -  },
      -  {
      -    "items": {
      -      "additionalProperties": {},
      -      "properties": {
      -        "description": {
      -          "anyOf": [
      -            {
      -              "type": "string"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "favourites": {
      -          "anyOf": [
      -            {
      -              "maximum": 9007199254740991,
      -              "minimum": -9007199254740991,
      -              "type": "integer"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "id": {
      -          "maximum": 9007199254740991,
      -          "minimum": -9007199254740991,
      -          "type": "integer"
      -        },
      -        "image": {
      -          "anyOf": [
      -            {
      -              "additionalProperties": false,
      -              "properties": {
      -                "large": {
      -                  "anyOf": [
      -                    {
      -                      "type": "string"
      -                    },
      -                    {
      -                      "type": "null"
      -                    }
      -                  ]
      -                }
      -              },
      -              "type": "object"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "isFavourite": {
      -          "anyOf": [
      -            {
      -              "type": "boolean"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "name": {
      -          "anyOf": [
      -            {
      -              "additionalProperties": false,
      -              "properties": {
      -                "full": {
      -                  "anyOf": [
      -                    {
      -                      "type": "string"
      -                    },
      -                    {
      -                      "type": "null"
      -                    }
      -                  ]
      -                },
      -                "native": {
      -                  "anyOf": [
      -                    {
      -                      "type": "string"
      -                    },
      -                    {
      -                      "type": "null"
      -                    }
      -                  ]
      -                }
      -              },
      -              "type": "object"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "primaryOccupations": {
      -          "anyOf": [
      -            {
      -              "items": {
      -                "type": "string"
      -              },
      -              "type": "array"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "siteUrl": {
      -          "anyOf": [
      -            {
      -              "type": "string"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "staffMedia": {
      -          "anyOf": [
      -            {
      -              "additionalProperties": false,
      -              "properties": {
      -                "edges": {
      -                  "items": {
      -                    "additionalProperties": {},
      -                    "properties": {
      -                      "node": {
      -                        "anyOf": [
      -                          {
      -                            "additionalProperties": {},
      -                            "properties": {
      -                              "format": {
      -                                "anyOf": [
      -                                  {
      -                                    "type": "string"
      -                                  },
      -                                  {
      -                                    "type": "null"
      -                                  }
      -                                ]
      -                              },
      -                              "id": {
      -                                "maximum": 9007199254740991,
      -                                "minimum": -9007199254740991,
      -                                "type": "integer"
      -                              },
      -                              "title": {
      -                                "anyOf": [
      -                                  {
      -                                    "additionalProperties": false,
      -                                    "properties": {
      -                                      "english": {
      -                                        "anyOf": [
      -                                          {
      -                                            "type": "string"
      -                                          },
      -                                          {
      -                                            "type": "null"
      -                                          }
      -                                        ]
      -                                      },
      -                                      "romaji": {
      -                                        "anyOf": [
      -                                          {
      -                                            "type": "string"
      -                                          },
      -                                          {
      -                                            "type": "null"
      -                                          }
      -                                        ]
      -                                      }
      -                                    },
      -                                    "type": "object"
      -                                  },
      -                                  {
      -                                    "type": "null"
      -                                  }
      -                                ]
      -                              },
      -                              "type": {
      -                                "anyOf": [
      -                                  {
      -                                    "type": "string"
      -                                  },
      -                                  {
      -                                    "type": "null"
      -                                  }
      -                                ]
      -                              }
      -                            },
      -                            "required": [
      -                              "id"
      -                            ],
      -                            "type": "object"
      -                          },
      -                          {
      -                            "type": "null"
      -                          }
      -                        ]
      -                      },
      -                      "staffRole": {
      -                        "anyOf": [
      -                          {
      -                            "type": "string"
      -                          },
      -                          {
      -                            "type": "null"
      -                          }
      -                        ]
      -                      }
      -                    },
      -                    "type": "object"
      -                  },
      -                  "type": "array"
      -                }
      -              },
      -              "required": [
      -                "edges"
      -              ],
      -              "type": "object"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        }
      -      },
      -      "required": [
      -        "id"
      -      ],
      -      "type": "object"
      -    },
      -    "type": "array"
      -  }
      -]
    • addedOutput schema / properties / results / items
      Added value: +{
      +  "additionalProperties": {},
      +  "properties": {
      +    "description": {
      +      "anyOf": [
      +        {
      +          "type": "string"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ]
      +    },
      +    "favourites": {
      +      "anyOf": [
      +        {
      +          "maximum": 9007199254740991,
      +          "minimum": 0,
      +          "type": "integer"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ]
      +    },
      +    "id": {
      +      "exclusiveMinimum": 0,
      +      "maximum": 2147483647,
      +      "type": "integer"
      +    },
      +    "image": {
      +      "anyOf": [
      +        {
      +          "additionalProperties": false,
      +          "properties": {
      +            "large": {
      +              "anyOf": [
      +                {
      +                  "format": "uri",
      +                  "type": "string"
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ]
      +            }
      +          },
      +          "type": "object"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ]
      +    },
      +    "isFavourite": {
      +      "anyOf": [
      +        {
      +          "type": "boolean"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ],
      +      "description": "[Requires login] Whether this character or staff member is in the caller's favourites. Has a brief read-after-write lag on AniList's own backend — confirmed live, a re-check right after toggle_favourite can briefly still show the pre-toggle value."
      +    },
      +    "name": {
      +      "anyOf": [
      +        {
      +          "additionalProperties": false,
      +          "properties": {
      +            "full": {
      +              "anyOf": [
      +                {
      +                  "type": "string"
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ]
      +            },
      +            "native": {
      +              "anyOf": [
      +                {
      +                  "type": "string"
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ]
      +            }
      +          },
      +          "type": "object"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ]
      +    },
      +    "primaryOccupations": {
      +      "anyOf": [
      +        {
      +          "items": {
      +            "type": "string"
      +          },
      +          "type": "array"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ]
      +    },
      +    "siteUrl": {
      +      "anyOf": [
      +        {
      +          "format": "uri",
      +          "type": "string"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ]
      +    }
      +  },
      +  "required": [
      +    "id"
      +  ],
      +  "type": "object"
      +}
    • addedOutput schema / properties / results / type
      Added value: +"array"
  4. Changed1 schema field changedv0.2.0
    • changedOutput schema / properties / results / anyOf
      Previous value: -[
      -  {
      -    "items": {
      -      "additionalProperties": {},
      -      "properties": {
      -        "description": {
      -          "anyOf": [
      -            {
      -              "type": "string"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "favourites": {
      -          "anyOf": [
      -            {
      -              "maximum": 9007199254740991,
      -              "minimum": -9007199254740991,
      -              "type": "integer"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "id": {
      -          "maximum": 9007199254740991,
      -          "minimum": -9007199254740991,
      -          "type": "integer"
      -        },
      -        "image": {
      -          "anyOf": [
      -            {
      -              "additionalProperties": false,
      -              "properties": {
      -                "large": {
      -                  "anyOf": [
      -                    {
      -                      "type": "string"
      -                    },
      -                    {
      -                      "type": "null"
      -                    }
      -                  ]
      -                }
      -              },
      -              "type": "object"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "isFavourite": {
      -          "anyOf": [
      -            {
      -              "type": "boolean"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "name": {
      -          "anyOf": [
      -            {
      -              "additionalProperties": false,
      -              "properties": {
      -                "full": {
      -                  "anyOf": [
      -                    {
      -                      "type": "string"
      -                    },
      -                    {
      -                      "type": "null"
      -                    }
      -                  ]
      -                },
      -                "native": {
      -                  "anyOf": [
      -                    {
      -                      "type": "string"
      -                    },
      -                    {
      -                      "type": "null"
      -                    }
      -                  ]
      -                }
      -              },
      -              "type": "object"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "siteUrl": {
      -          "anyOf": [
      -            {
      -              "type": "string"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        }
      -      },
      -      "required": [
      -        "id"
      -      ],
      -      "type": "object"
      -    },
      -    "type": "array"
      -  },
      -  {
      -    "items": {
      -      "additionalProperties": {},
      -      "properties": {
      -        "description": {
      -          "anyOf": [
      -            {
      -              "type": "string"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "favourites": {
      -          "anyOf": [
      -            {
      -              "maximum": 9007199254740991,
      -              "minimum": -9007199254740991,
      -              "type": "integer"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "id": {
      -          "maximum": 9007199254740991,
      -          "minimum": -9007199254740991,
      -          "type": "integer"
      -        },
      -        "image": {
      -          "anyOf": [
      -            {
      -              "additionalProperties": false,
      -              "properties": {
      -                "large": {
      -                  "anyOf": [
      -                    {
      -                      "type": "string"
      -                    },
      -                    {
      -                      "type": "null"
      -                    }
      -                  ]
      -                }
      -              },
      -              "type": "object"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "isFavourite": {
      -          "anyOf": [
      -            {
      -              "type": "boolean"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "name": {
      -          "anyOf": [
      -            {
      -              "additionalProperties": false,
      -              "properties": {
      -                "full": {
      -                  "anyOf": [
      -                    {
      -                      "type": "string"
      -                    },
      -                    {
      -                      "type": "null"
      -                    }
      -                  ]
      -                },
      -                "native": {
      -                  "anyOf": [
      -                    {
      -                      "type": "string"
      -                    },
      -                    {
      -                      "type": "null"
      -                    }
      -                  ]
      -                }
      -              },
      -              "type": "object"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "primaryOccupations": {
      -          "anyOf": [
      -            {
      -              "items": {
      -                "type": "string"
      -              },
      -              "type": "array"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        },
      -        "siteUrl": {
      -          "anyOf": [
      -            {
      -              "type": "string"
      -            },
      -            {
      -              "type": "null"
      -            }
      -          ]
      -        }
      -      },
      -      "required": [
      -        "id"
      -      ],
      -      "type": "object"
      -    },
      -    "type": "array"
      -  }
      -]New value: +[
      +  {
      +    "items": {
      +      "additionalProperties": {},
      +      "properties": {
      +        "description": {
      +          "anyOf": [
      +            {
      +              "type": "string"
      +            },
      +            {
      +              "type": "null"
      +            }
      +          ]
      +        },
      +        "favourites": {
      +          "anyOf": [
      +            {
      +              "maximum": 9007199254740991,
      +              "minimum": -9007199254740991,
      +              "type": "integer"
      +            },
      +            {
      +              "type": "null"
      +            }
      +          ]
      +        },
      +        "id": {
      +          "maximum": 9007199254740991,
      +          "minimum": -9007199254740991,
      +          "type": "integer"
      +        },
      +        "image": {
      +          "anyOf": [
      +            {
      +              "additionalProperties": false,
      +              "properties": {
      +                "large": {
      +                  "anyOf": [
      +                    {
      +                      "type": "string"
      +                    },
      +                    {
      +                      "type": "null"
      +                    }
      +                  ]
      +                }
      +              },
      +              "type": "object"
      +            },
      +            {
      +              "type": "null"
      +            }
      +          ]
      +        },
      +        "isFavourite": {
      +          "anyOf": [
      +            {
      +              "type": "boolean"
      +            },
      +            {
      +              "type": "null"
      +            }
      +          ]
      +        },
      +        "media": {
      +          "anyOf": [
      +            {
      +              "additionalProperties": false,
      +              "properties": {
      +                "edges": {
      +                  "items": {
      +                    "additionalProperties": {},
      +                    "properties": {
      +                      "characterRole": {
      +                        "anyOf": [
      +                          {
      +                            "type": "string"
      +                          },
      +                          {
      +                            "type": "null"
      +                          }
      +                        ]
      +                      },
      +                      "node": {
      +                        "anyOf": [
      +                          {
      +                            "additionalProperties": {},
      +                            "properties": {
      +                              "format": {
      +                                "anyOf": [
      +                                  {
      +                                    "type": "string"
      +                                  },
      +                                  {
      +                                    "type": "null"
      +                                  }
      +                                ]
      +                              },
      +                              "id": {
      +                                "maximum": 9007199254740991,
      +                                "minimum": -9007199254740991,
      +                                "type": "integer"
      +                              },
      +                              "title": {
      +                                "anyOf": [
      +                                  {
      +                                    "additionalProperties": false,
      +                                    "properties": {
      +                                      "english": {
      +                                        "anyOf": [
      +                                          {
      +                                            "type": "string"
      +                                          },
      +                                          {
      +                                            "type": "null"
      +                                          }
      +                                        ]
      +                                      },
      +                                      "romaji": {
      +                                        "anyOf": [
      +                                          {
      +                                            "type": "string"
      +                                          },
      +                                          {
      +                                            "type": "null"
      +                                          }
      +                                        ]
      +                                      }
      +                                    },
      +                                    "type": "object"
      +                                  },
      +                                  {
      +                                    "type": "null"
      +                                  }
      +                                ]
      +                              },
      +                              "type": {
      +                                "anyOf": [
      +                                  {
      +                                    "type": "string"
      +                                  },
      +                                  {
      +                                    "type": "null"
      +                                  }
      +                                ]
      +                              }
      +                            },
      +                            "required": [
      +                              "id"
      +                            ],
      +                            "type": "object"
      +                          },
      +                          {
      +                            "type": "null"
      +                          }
      +                        ]
      +                      }
      +                    },
      +                    "type": "object"
      +                  },
      +                  "type": "array"
      +                }
      +              },
      +              "required": [
      +                "edges"
      +              ],
      +              "type": "object"
      +            },
      +            {
      +              "type": "null"
      +            }
      +          ]
      +        },
      +        "name": {
      +          "anyOf": [
      +            {
      +              "additionalProperties": false,
      +              "properties": {
      +                "full": {
      +                  "anyOf": [
      +                    {
      +                      "type": "string"
      +                    },
      +                    {
      +                      "type": "null"
      +                    }
      +                  ]
      +                },
      +                "native": {
      +                  "anyOf": [
      +                    {
      +                      "type": "string"
      +                    },
      +                    {
      +                      "type": "null"
      +                    }
      +                  ]
      +                }
      +              },
      +              "type": "object"
      +            },
      +            {
      +              "type": "null"
      +            }
      +          ]
      +        },
      +        "siteUrl": {
      +          "anyOf": [
      +            {
      +              "type": "string"
      +            },
      +            {
      +              "type": "null"
      +            }
      +          ]
      +        }
      +      },
      +      "required": [
      +        "id"
      +      ],
      +      "type": "object"
      +    },
      +    "type": "array"
      +  },
      +  {
      +    "items": {
      +      "additionalProperties": {},
      +      "properties": {
      +        "description": {
      +          "anyOf": [
      +            {
      +              "type": "string"
      +            },
      +            {
      +              "type": "null"
      +            }
      +          ]
      +        },
      +        "favourites": {
      +          "anyOf": [
      +            {
      +              "maximum": 9007199254740991,
      +              "minimum": -9007199254740991,
      +              "type": "integer"
      +            },
      +            {
      +              "type": "null"
      +            }
      +          ]
      +        },
      +        "id": {
      +          "maximum": 9007199254740991,
      +          "minimum": -9007199254740991,
      +          "type": "integer"
      +        },
      +        "image": {
      +          "anyOf": [
      +            {
      +              "additionalProperties": false,
      +              "properties": {
      +                "large": {
      +                  "anyOf": [
      +                    {
      +                      "type": "string"
      +                    },
      +                    {
      +                      "type": "null"
      +                    }
      +                  ]
      +                }
      +              },
      +              "type": "object"
      +            },
      +            {
      +              "type": "null"
      +            }
      +          ]
      +        },
      +        "isFavourite": {
      +          "anyOf": [
      +            {
      +              "type": "boolean"
      +            },
      +            {
      +              "type": "null"
      +            }
      +          ]
      +        },
      +        "name": {
      +          "anyOf": [
      +            {
      +              "additionalProperties": false,
      +              "properties": {
      +                "full": {
      +                  "anyOf": [
      +                    {
      +                      "type": "string"
      +                    },
      +                    {
      +                      "type": "null"
      +                    }
      +                  ]
      +                },
      +                "native": {
      +                  "anyOf": [
      +                    {
      +                      "type": "string"
      +                    },
      +                    {
      +                      "type": "null"
      +                    }
      +                  ]
      +                }
      +              },
      +              "type": "object"
      +            },
      +            {
      +              "type": "null"
      +            }
      +          ]
      +        },
      +        "primaryOccupations": {
      +          "anyOf": [
      +            {
      +              "items": {
      +                "type": "string"
      +              },
      +              "type": "array"
      +            },
      +            {
      +              "type": "null"
      +            }
      +          ]
      +        },
      +        "siteUrl": {
      +          "anyOf": [
      +            {
      +              "type": "string"
      +            },
      +            {
      +              "type": "null"
      +            }
      +          ]
      +        },
      +        "staffMedia": {
      +          "anyOf": [
      +            {
      +              "additionalProperties": false,
      +              "properties": {
      +                "edges": {
      +                  "items": {
      +                    "additionalProperties": {},
      +                    "properties": {
      +                      "node": {
      +                        "anyOf": [
      +                          {
      +                            "additionalProperties": {},
      +                            "properties": {
      +                              "format": {
      +                                "anyOf": [
      +                                  {
      +                                    "type": "string"
      +                                  },
      +                                  {
      +                                    "type": "null"
      +                                  }
      +                                ]
      +                              },
      +                              "id": {
      +                                "maximum": 9007199254740991,
      +                                "minimum": -9007199254740991,
      +                                "type": "integer"
      +                              },
      +                              "title": {
      +                                "anyOf": [
      +                                  {
      +                                    "additionalProperties": false,
      +                                    "properties": {
      +                                      "english": {
      +                                        "anyOf": [
      +                                          {
      +                                            "type": "string"
      +                                          },
      +                                          {
      +                                            "type": "null"
      +                                          }
      +                                        ]
      +                                      },
      +                                      "romaji": {
      +                                        "anyOf": [
      +                                          {
      +                                            "type": "string"
      +                                          },
      +                                          {
      +                                            "type": "null"
      +                                          }
      +                                        ]
      +                                      }
      +                                    },
      +                                    "type": "object"
      +                                  },
      +                                  {
      +                                    "type": "null"
      +                                  }
      +                                ]
      +                              },
      +                              "type": {
      +                                "anyOf": [
      +                                  {
      +                                    "type": "string"
      +                                  },
      +                                  {
      +                                    "type": "null"
      +                                  }
      +                                ]
      +                              }
      +                            },
      +                            "required": [
      +                              "id"
      +                            ],
      +                            "type": "object"
      +                          },
      +                          {
      +                            "type": "null"
      +                          }
      +                        ]
      +                      },
      +                      "staffRole": {
      +                        "anyOf": [
      +                          {
      +                            "type": "string"
      +                          },
      +                          {
      +                            "type": "null"
      +                          }
      +                        ]
      +                      }
      +                    },
      +                    "type": "object"
      +                  },
      +                  "type": "array"
      +                }
      +              },
      +              "required": [
      +                "edges"
      +              ],
      +              "type": "object"
      +            },
      +            {
      +              "type": "null"
      +            }
      +          ]
      +        }
      +      },
      +      "required": [
      +        "id"
      +      ],
      +      "type": "object"
      +    },
      +    "type": "array"
      +  }
      +]
  5. First observedv0.1.5

TDQS

A4.9/5.0
Behavior5/5

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

Annotations already mark readOnlyHint/openWorldHint, but the description adds substantial behavioral disclosure beyond that: the fixed 50-result cap with silent omission, the lighter fetch omitting filmography, and the warning that a missing filmography should not be interpreted as 'none'. This is precisely the kind of non-obvious behavior an agent needs to know.

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

Conciseness5/5

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

The description is long but every sentence earns its place: it front-loads the core behavior (list up to 50 birthday people), then the cap caveat, then the lighter-fetch distinction and the alternative. No filler or repetition; it is dense but well-organized.

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?

Given the output schema and annotations, the description covers the essential operational details: result cap, shape, omitted fields, and when to use siblings. The only notable gap is the missing timezone/date-source definition for 'today'; without that, an agent cannot know whose 'today' applies, which is a subtle but real ambiguity for a birthday tool.

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

Parameters5/5

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

Schema coverage is 100%, but the description adds real semantic value beyond the schema: it explains that kind maps to character-shaped vs staff-shaped results, and it gives a token-cost rationale for includeDescription along with an alternative ('use get_character/get_staff for a single entry's full bio instead'). This helps the agent choose parameter values wisely, not just syntax.

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

Purpose5/5

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

The description states a specific action ('list'), resource ('AniList characters or staff members'), and temporal filter ('birthday ... is today'). It also explicitly differentiates from get_character/get_staff by noting the lighter fetch and omitted filmography, so an agent can distinguish this from siblings without opening schemas.

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

Usage Guidelines5/5

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

The description gives clear when-to-use context: listing birthday characters/staff. It also provides explicit routing to alternatives: 'call get_character/get_staff by ID for an entry's full roles/works and bio, don't read a missing filmography here as none.' This tells the agent when not to rely on this tool and which sibling to use instead.

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