AstroWay Astrology API (full catalogue)

RWS: Timing Card

astroway_tarot_rider_waite_timing

Read-onlyIdempotent

Single timing card to indicate when.

[Group: Tarot: Rider-Waite-Smith] [Endpoint: POST /v1/tarot/rider-waite/timing] [Cost: 10 credits (Tier 1)]

Input Schema

Name	Required	Description
`art`	No	Card art set, e.g. rws-1909, rws-restored, rws-vector. GET /v1/tarot/decks lists the sets per deck.
`seed`	No
`fields`	No	Compact mode: comma-separated dotted paths to keep, relative to `data`, e.g. "planets.name,planets.longitude,houses.cusp". Omit for the whole response.
`question`	No
`precision`	No	Compact mode: round fractional numbers to this many decimals. Longitudes carry 14 by default; 2 is finer than any chart is drawn.
`allowReversed`	No

Output Schema

Name	Required	Description	Default
`seed`	No
`type`	No
`drawn`	No
`spread`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed6 schema fields changedNov 7, 2026

changedOutput schema / properties / drawn / anyOf

Previous value: -[
-  {
-    "items": {
-      "anyOf": [
-        {
-          "additionalProperties": {},
-          "properties": {
-            "card": {
-              "anyOf": [
-                {
-                  "additionalProperties": {},
-                  "properties": {
-                    "astrology": {
-                      "anyOf": [
-                        {
-                          "type": "string"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ]
-                    },
-                    "category": {
-                      "anyOf": [
-                        {
-                          "type": "string"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ]
-                    },
-                    "element": {
-                      "anyOf": [
-                        {
-                          "type": "string"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ]
-                    },
-                    "name": {
-                      "anyOf": [
-                        {
-                          "type": "string"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ]
-                    },
-                    "number": {
-                      "anyOf": [
-                        {
-                          "type": "number"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ]
-                    },
-                    "numerology": {
-                      "anyOf": [
-                        {
-                          "type": "number"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ]
-                    },
-                    "rank": {
-                      "anyOf": [
-                        {
-                          "type": "string"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ]
-                    },
-                    "reversed": {
-                      "anyOf": [
-                        {
-                          "additionalProperties": {},
-                          "properties": {
-                            "keywords": {
-                              "anyOf": [
-                                {
-                                  "items": {
-                                    "anyOf": [
-                                      {
-                                        "type": "string"
-                                      },
-                                      {
-                                        "type": "null"
-                                      }
-                                    ]
-                                  },
-                                  "type": "array"
-                                },
-                                {
-                                  "type": "null"
-                                }
-                              ]
-                            },
-                            "meaning": {
-                              "anyOf": [
-                                {
-                                  "type": "string"
-                                },
-                                {
-                                  "type": "null"
-                                }
-                              ]
-                            }
-                          },
-                          "type": "object"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ]
-                    },
-                    "slug": {
-                      "anyOf": [
-                        {
-                          "type": "string"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ]
-                    },
-                    "suit": {
-                      "anyOf": [
-                        {
-                          "type": "string"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ]
-                    },
-                    "upright": {
-                      "anyOf": [
-                        {
-                          "additionalProperties": {},
-                          "properties": {
-                            "keywords": {
-                              "anyOf": [
-                                {
-                                  "items": {
-                                    "anyOf": [
-                                      {
-                                        "type": "string"
-                                      },
-                                      {
-                                        "type": "null"
-                                      }
-                                    ]
-                                  },
-                                  "type": "array"
-                                },
-                                {
-                                  "type": "null"
-                                }
-                              ]
-                            },
-                            "meaning": {
-                              "anyOf": [
-                                {
-                                  "type": "string"
-                                },
-                                {
-                                  "type": "null"
-                                }
-                              ]
-                            }
-                          },
-                          "type": "object"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ]
-                    },
-                    "yes": {
-                      "anyOf": [
-                        {
-                          "type": "string"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ]
-                    }
-                  },
-                  "type": "object"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "position": {
-              "anyOf": [
-                {
-                  "additionalProperties": {},
-                  "properties": {
-                    "index": {
-                      "anyOf": [
-                        {
-                          "type": "number"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ]
-                    },
-                    "meaning": {
-                      "anyOf": [
-                        {
-                          "type": "string"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ]
-                    },
-                    "name": {
-                      "anyOf": [
-                        {
-                          "type": "string"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ]
-                    }
-                  },
-                  "type": "object"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "reversed": {
-              "anyOf": [
-                {
-                  "type": "boolean"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            }
-          },
-          "type": "object"
-        },
-        {
-          "type": "null"
-        }
-      ]
-    },
-    "type": "array"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "items": {
+      "anyOf": [
+        {
+          "additionalProperties": {},
+          "properties": {
+            "card": {
+              "anyOf": [
+                {
+                  "additionalProperties": {},
+                  "properties": {
+                    "astrology": {
+                      "type": [
+                        "string",
+                        "null"
+                      ]
+                    },
+                    "category": {
+                      "type": [
+                        "string",
+                        "null"
+                      ]
+                    },
+                    "element": {
+                      "type": [
+                        "string",
+                        "null"
+                      ]
+                    },
+                    "name": {
+                      "type": [
+                        "string",
+                        "null"
+                      ]
+                    },
+                    "number": {
+                      "type": [
+                        "number",
+                        "null"
+                      ]
+                    },
+                    "numerology": {
+                      "type": [
+                        "number",
+                        "null"
+                      ]
+                    },
+                    "rank": {
+                      "type": [
+                        "string",
+                        "null"
+                      ]
+                    },
+                    "reversed": {
+                      "anyOf": [
+                        {
+                          "additionalProperties": {},
+                          "properties": {
+                            "keywords": {
+                              "anyOf": [
+                                {
+                                  "items": {
+                                    "type": [
+                                      "string",
+                                      "null"
+                                    ]
+                                  },
+                                  "type": "array"
+                                },
+                                {
+                                  "type": "null"
+                                }
+                              ]
+                            },
+                            "meaning": {
+                              "type": [
+                                "string",
+                                "null"
+                              ]
+                            }
+                          },
+                          "type": "object"
+                        },
+                        {
+                          "type": "null"
+                        }
+                      ]
+                    },
+                    "slug": {
+                      "type": [
+                        "string",
+                        "null"
+                      ]
+                    },
+                    "suit": {
+                      "type": [
+                        "string",
+                        "null"
+                      ]
+                    },
+                    "upright": {
+                      "anyOf": [
+                        {
+                          "additionalProperties": {},
+                          "properties": {
+                            "keywords": {
+                              "anyOf": [
+                                {
+                                  "items": {
+                                    "type": [
+                                      "string",
+                                      "null"
+                                    ]
+                                  },
+                                  "type": "array"
+                                },
+                                {
+                                  "type": "null"
+                                }
+                              ]
+                            },
+                            "meaning": {
+                              "type": [
+                                "string",
+                                "null"
+                              ]
+                            }
+                          },
+                          "type": "object"
+                        },
+                        {
+                          "type": "null"
+                        }
+                      ]
+                    },
+                    "yes": {
+                      "type": [
+                        "string",
+                        "null"
+                      ]
+                    }
+                  },
+                  "type": "object"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "position": {
+              "anyOf": [
+                {
+                  "additionalProperties": {},
+                  "properties": {
+                    "index": {
+                      "type": [
+                        "number",
+                        "null"
+                      ]
+                    },
+                    "meaning": {
+                      "type": [
+                        "string",
+                        "null"
+                      ]
+                    },
+                    "name": {
+                      "type": [
+                        "string",
+                        "null"
+                      ]
+                    }
+                  },
+                  "type": "object"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "reversed": {
+              "type": [
+                "boolean",
+                "null"
+              ]
+            }
+          },
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "type": "array"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / seed / anyOf

Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / seed / type
```
Added value: +[
+  "number",
+  "null"
+]
```

changedOutput schema / properties / spread / anyOf

Previous value: -[
-  {
-    "additionalProperties": {},
-    "properties": {
-      "cardCount": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "name": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "slug": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      }
-    },
-    "type": "object"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "additionalProperties": {},
+    "properties": {
+      "cardCount": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "name": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "slug": {
+        "type": [
+          "string",
+          "null"
+        ]
+      }
+    },
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / type / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / type / type
```
Added value: +[
+  "string",
+  "null"
+]
```

Changed1 schema field changedOct 5, 2026

addedInput schema / properties / art

Added value: +{
+  "description": "Card art set, e.g. rws-1909, rws-restored, rws-vector. GET /v1/tarot/decks lists the sets per deck.",
+  "maxLength": 40,
+  "type": "string"
+}

First observedOct 5, 2026

TDQS

C2.9/5.0

Behavior3/5

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

Annotations already declare readOnly/idempotent/non-destructive and closed-world, so safety is covered. The description adds genuinely useful operational context: the HTTP endpoint, the deck family, and a cost of 10 credits (Tier 1). It says nothing, however, about how a card is chosen (random vs. seeded), what determines reversed cards, or whether a 'question' influences the draw.

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?

Very short and front-loaded, with metadata in a scannable bracketed block and no filler sentences. But the brevity comes at the cost of substance: most of the text is endpoint/cost boilerplate rather than explanation of the tool's behavior.

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

Completeness3/5

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

An output schema exists, so return values need no explanation, and annotations cover the safety profile. Still, for a tool with six all-optional parameters and a seeded draw, an agent needs to know whether to supply `question`, what `seed` guarantees, and how `allowReversed` affects interpretation; all of that is missing.

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

Parameters2/5

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

Six parameters, none required, and only half have schema descriptions. The description never mentions `question`, `seed`, or `allowReversed`, which are exactly the parameters whose meaning is ambiguous (does the question change the draw? does the same seed reproduce the same card?), so it does not compensate for the coverage gap.

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?

The description states a specific resource and purpose: a single Rider-Waite-Smith tarot card drawn for timing ('to indicate when'). That distinguishes it reasonably well from reading-focused siblings such as draw_three_card or outcome. However, it never names the obvious alternative, astroway_tarot_marseille_timing, which does the same job in a different deck.

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

Usage Guidelines2/5

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

There is no when-to-use guidance at all. The agent is not told to use this when a question is about timing rather than outcome, nor when to prefer the Marseille timing sibling, nor when a full spread would be more appropriate.

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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