D8ly Read

Daily Bazi Guidance / 八字每日指引

get_daily_bazi_guidance

Read-onlyIdempotent

Use this when the user wants personalized daily Bazi interactions for a specific reading date and has supplied the complete birth inputs. Returns the chart and daily guidance. Do not use this for a date-only almanac request or when any birth input is missing. No generative AI is used. Use only with the subject’s permission. / 當使用者要查看指定日期的個人化八字互動，且已提供完整出生資料時使用；回傳命盤與每日指引。僅詢問日期黃曆或缺少任何出生資料時請勿使用。本工具不使用生成式 AI。僅在獲得當事人同意時使用出生資料。

Input Schema

TableJSON Schema

Name	Required	Description	Default
`locale`	No	Response display preference; structured technical values include both languages / 回應語言偏好；結構化術語同時包含中英文	en
`latitude`	Yes	Birth latitude in decimal degrees / 出生地緯度（十進位度數）
`timezone`	Yes	UTC offset in hours at the birth location and date / 出生地與出生日期的 UTC 小時時差
`longitude`	Yes	Birth longitude in decimal degrees; used for True Solar Time / 出生地經度，用於真太陽時校正
`birth_date`	Yes	Birth date in YYYY-MM-DD format / YYYY-MM-DD 格式的出生日期
`birth_time`	Yes	Local birth time in 24-hour HH:mm format / 24 小時制的出生時間 HH:mm
`reading_date`	Yes	Date to interpret in YYYY-MM-DD format / YYYY-MM-DD 格式的解讀日期

Output Schema

TableJSON Schema

Name	Required	Description	Default
`data`	Yes
`tool`	Yes
`locale`	Yes
`disclaimer`	Yes
`generated_at`	Yes
`canonical_url`	Yes
`deterministic`	Yes
`schema_version`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed11 schema fields changedSep 8, 2026

removedInput schema / properties / birth_time / default
```
Removed value: -"12:00"
```

changedInput schema / required

Previous value: -[
-  "birth_date",
-  "latitude",
-  "longitude",
-  "timezone",
-  "reading_date"
-]New value: +[
+  "birth_date",
+  "birth_time",
+  "latitude",
+  "longitude",
+  "timezone",
+  "reading_date"
+]

addedOutput schema / properties / canonical_url / format
```
Added value: +"uri"
```
changedOutput schema / properties / data / additionalProperties
```
Previous value: -{}New value: +false
```

addedOutput schema / properties / data / properties

Added value: +{
+  "birth_input": {
+    "additionalProperties": false,
+    "properties": {
+      "date": {
+        "type": "string"
+      },
+      "latitude": {
+        "type": "number"
+      },
+      "longitude": {
+        "type": "number"
+      },
+      "time": {
+        "type": "string"
+      },
+      "timezone_offset_hours": {
+        "type": "number"
+      }
+    },
+    "required": [
+      "date",
+      "time",
+      "latitude",
+      "longitude",
+      "timezone_offset_hours"
+    ],
+    "type": "object"
+  },
+  "calculation_method": {
+    "type": "string"
+  },
+  "chart": {
+    "additionalProperties": false,
+    "properties": {
+      "day": {
+        "additionalProperties": false,
+        "properties": {
+          "earthly_branch": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "five_elements": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "gan_zhi": {
+            "type": "string"
+          },
+          "heavenly_stem": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "na_yin": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          }
+        },
+        "required": [
+          "heavenly_stem",
+          "earthly_branch",
+          "gan_zhi",
+          "five_elements",
+          "na_yin"
+        ],
+        "type": "object"
+      },
+      "hour": {
+        "additionalProperties": false,
+        "properties": {
+          "earthly_branch": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "five_elements": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "gan_zhi": {
+            "type": "string"
+          },
+          "heavenly_stem": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "na_yin": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          }
+        },
+        "required": [
+          "heavenly_stem",
+          "earthly_branch",
+          "gan_zhi",
+          "five_elements",
+          "na_yin"
+        ],
+        "type": "object"
+      },
+      "month": {
+        "additionalProperties": false,
+        "properties": {
+          "earthly_branch": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "five_elements": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "gan_zhi": {
+            "type": "string"
+          },
+          "heavenly_stem": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "na_yin": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          }
+        },
+        "required": [
+          "heavenly_stem",
+          "earthly_branch",
+          "gan_zhi",
+          "five_elements",
+          "na_yin"
+        ],
+        "type": "object"
+      },
+      "solar_time": {
+        "additionalProperties": false,
+        "properties": {
+          "equation_of_time_minutes": {
+            "type": "number"
+          },
+          "longitude_correction_minutes": {
+            "type": "number"
+          },
+          "original_local_time": {
+            "type": "string"
+          },
+          "timezone_offset_hours": {
+            "type": "number"
+          },
+          "total_correction_minutes": {
+            "type": "number"
+          },
+          "true_solar_local_time": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "original_local_time",
+          "true_solar_local_time",
+          "timezone_offset_hours",
+          "longitude_correction_minutes",
+          "equation_of_time_minutes",
+          "total_correction_minutes"
+        ],
+        "type": "object"
+      },
+      "year": {
+        "additionalProperties": false,
+        "properties": {
+          "earthly_branch": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "five_elements": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "gan_zhi": {
+            "type": "string"
+          },
+          "heavenly_stem": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "na_yin": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          }
+        },
+        "required": [
+          "heavenly_stem",
+          "earthly_branch",
+          "gan_zhi",
+          "five_elements",
+          "na_yin"
+        ],
+        "type": "object"
+      }
+    },
+    "required": [
+      "year",
+      "month",
+      "day",
+      "hour",
+      "solar_time"
+    ],
+    "type": "object"
+  },
+  "reading": {
+    "additionalProperties": false,
+    "properties": {
+      "activities": {
+        "additionalProperties": false,
+        "properties": {
+          "suitable": {
+            "items": {
+              "additionalProperties": false,
+              "properties": {
+                "en": {
+                  "type": "string"
+                },
+                "zh": {
+                  "type": "string"
+                }
+              },
+              "required": [
+                "en",
+                "zh"
+              ],
+              "type": "object"
+            },
+            "type": "array"
+          },
+          "unsuitable": {
+            "items": {
+              "additionalProperties": false,
+              "properties": {
+                "en": {
+                  "type": "string"
+                },
+                "zh": {
+                  "type": "string"
+                }
+              },
+              "required": [
+                "en",
+                "zh"
+              ],
+              "type": "object"
+            },
+            "type": "array"
+          }
+        },
+        "required": [
+          "suitable",
+          "unsuitable"
+        ],
+        "type": "object"
+      },
+      "auspicious_directions": {
+        "additionalProperties": false,
+        "properties": {
+          "cai": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "fu": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "xi": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "yangGui": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "yinGui": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          }
+        },
+        "required": [
+          "xi",
+          "cai",
+          "fu",
+          "yangGui",
+          "yinGui"
+        ],
+        "type": "object"
+      },
+      "branch_interactions": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "description": {
+              "additionalProperties": false,
+              "properties": {
+                "en": {
+                  "type": "string"
+                },
+                "zh": {
+                  "type": "string"
+                }
+              },
+              "required": [
+                "en",
+                "zh"
+              ],
+              "type": "object"
+            },
+            "natal_branch": {
+              "additionalProperties": false,
+              "properties": {
+                "en": {
+                  "type": "string"
+                },
+                "zh": {
+                  "type": "string"
+                }
+              },
+              "required": [
+                "en",
+                "zh"
+              ],
+              "type": "object"
+            },
+            "natal_pillar": {
+              "enum": [
+                "year",
+                "month",
+                "day",
+                "hour"
+              ],
+              "type": "string"
+            },
+            "today_branch": {
+              "additionalProperties": false,
+              "properties": {
+                "en": {
+                  "type": "string"
+                },
+                "zh": {
+                  "type": "string"
+                }
+              },
+              "required": [
+                "en",
+                "zh"
+              ],
+              "type": "object"
+            },
+            "type": {
+              "enum": [
+                "clash",
+                "combination"
+              ],
+              "type": "string"
+            }
+          },
+          "required": [
+            "type",
+            "today_branch",
+            "natal_branch",
+            "natal_pillar",
+            "description"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      },
+      "day_pillar": {
+        "additionalProperties": false,
+        "properties": {
+          "earthly_branch": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "five_elements": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "gan_zhi": {
+            "type": "string"
+          },
+          "heavenly_stem": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "na_yin": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          }
+        },
+        "required": [
+          "heavenly_stem",
+          "earthly_branch",
+          "gan_zhi",
+          "five_elements",
+          "na_yin"
+        ],
+        "type": "object"
+      },
+      "hours": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "end_time": {
+              "type": "string"
+            },
+            "gan_zhi": {
+              "type": "string"
+            },
+            "rating": {
+              "maximum": 5,
+              "minimum": 1,
+              "type": "integer"
+            },
+            "start_time": {
+              "type": "string"
+            },
+            "suitable": {
+              "items": {
+                "additionalProperties": false,
+                "properties": {
+                  "en": {
+                    "type": "string"
+                  },
+                  "zh": {
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "en",
+                  "zh"
+                ],
+                "type": "object"
+              },
+              "type": "array"
+            },
+            "ten_god": {
+              "additionalProperties": false,
+              "properties": {
+                "en": {
+                  "type": "string"
+                },
+                "zh": {
+                  "type": "string"
+                }
+              },
+              "required": [
+                "en",
+                "zh"
+              ],
+              "type": "object"
+            },
+            "unsuitable": {
+              "items": {
+                "additionalProperties": false,
+                "properties": {
+                  "en": {
+                    "type": "string"
+                  },
+                  "zh": {
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "en",
+                  "zh"
+                ],
+                "type": "object"
+              },
+              "type": "array"
+            }
+          },
+          "required": [
+            "gan_zhi",
+            "start_time",
+            "end_time",
+            "ten_god",
+            "rating",
+            "suitable",
+            "unsuitable"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      },
+      "lucky": {
+        "additionalProperties": false,
+        "properties": {
+          "color": {
+            "type": "string"
+          },
+          "colorHex": {
+            "type": "string"
+          },
+          "colorZh": {
+            "type": "string"
+          },
+          "number": {
+            "maximum": 9007199254740991,
+            "minimum": -9007199254740991,
+            "type": "integer"
+          }
+        },
+        "required": [
+          "color",
+          "colorZh",
+          "colorHex",
+          "number"
+        ],
+        "type": "object"
+      },
+      "lunar_date": {
+        "additionalProperties": false,
+        "properties": {
+          "en": {
+            "type": "string"
+          },
+          "zh": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "en",
+          "zh"
+        ],
+        "type": "object"
+      },
+      "overall_rating": {
+        "maximum": 5,
+        "minimum": 1,
+        "type": "integer"
+      },
+      "summary": {
+        "additionalProperties": false,
+        "properties": {
+          "en": {
+            "type": "string"
+          },
+          "zh": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "en",
+          "zh"
+        ],
+        "type": "object"
+      },
+      "ten_god": {
+        "additionalProperties": false,
+        "properties": {
+          "day_master": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "favorability": {
+            "maximum": 2,
+            "minimum": -2,
+            "type": "integer"
+          },
+          "name": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "theme": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "today_stem": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          }
+        },
+        "required": [
+          "name",
+          "day_master",
+          "today_stem",
+          "theme",
+          "favorability"
+        ],
+        "type": "object"
+      },
+      "zodiac_clash": {
+        "additionalProperties": false,
+        "properties": {
+          "animal": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          },
+          "description": {
+            "additionalProperties": false,
+            "properties": {
+              "en": {
+                "type": "string"
+              },
+              "zh": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "en",
+              "zh"
+            ],
+            "type": "object"
+          }
+        },
+        "required": [
+          "animal",
+          "description"
+        ],
+        "type": "object"
+      }
+    },
+    "required": [
+      "lunar_date",
+      "day_pillar",
+      "ten_god",
+      "overall_rating",
+      "summary",
+      "branch_interactions",
+      "activities",
+      "auspicious_directions",
+      "zodiac_clash",
+      "lucky",
+      "hours"
+    ],
+    "type": "object"
+  },
+  "reading_date": {
+    "type": "string"
+  }
+}

removedOutput schema / properties / data / propertyNames
```
Removed value: -{
-  "type": "string"
-}
```

addedOutput schema / properties / data / required

Added value: +[
+  "reading_date",
+  "birth_input",
+  "calculation_method",
+  "chart",
+  "reading"
+]

addedOutput schema / properties / generated_at / format
```
Added value: +"date-time"
```

addedOutput schema / properties / generated_at / pattern

Added value: +"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$"

changedOutput schema / properties / schema_version / const
```
Previous value: -"2026-08-20"New value: +"2026-09-07"
```
addedOutput schema / properties / tool / const
```
Added value: +"get_daily_bazi_guidance"
```

First observedSep 1, 2026

TDQS

A4.2/5.0

Behavior4/5

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

Annotations already cover readOnly, idempotent, and destructive false, so the description doesn't need to repeat those. It adds extra transparency by stating 'No generative AI is used' (indicating deterministic computation) and 'Use only with the subject's permission' (ethical handling). This goes beyond the annotations and provides valuable behavioral context.

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

Conciseness3/5

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

The description is clear and well-structured but noticeably redundant due to full bilingual repetition of every sentence in English and Chinese. While this may serve a multilingual audience, it roughly doubles the length without adding new information, making it less concise than necessary for an agent-facing description.

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?

The description mentions what it returns ('chart and daily guidance'), states its non-AI nature, and includes permission requirements. It also clarifies exclusions. Given that an output schema exists, the description sufficiently covers the necessary context without explaining return values in detail, which is appropriate.

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 schema descriptions cover all parameters with detailed explanations including format, units, and bilingual comments, yielding 100% coverage. The tool description itself does not add further parameter semantics, but since schema coverage is high, the baseline of 3 is appropriate.

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 clearly states the tool's specific purpose: providing personalized daily Bazi interpretations for a given reading date with complete birth inputs. It also distinguishes it from siblings by explicitly excluding date-only almanac requests and missing birth input cases, making the purpose unambiguous.

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 explicit when-to-use and when-not-to-use conditions ('when the user wants personalized daily Bazi... has supplied complete birth inputs' vs 'Do not use for a date-only almanac or when any birth input is missing'). It also includes important usage notes about not using generative AI and requiring subject permission, providing complete 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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