AstroWay Tarot

RWS: Shadow Card

astroway_tarot_rider_waite_shadow_card

Read-onlyIdempotent

Shadow card pair (mirror in major arcana of personality card).

[Group: Tarot: Rider-Waite-Smith] [Endpoint: POST /v1/tarot/rider-waite/shadow-card] [Required: date] [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.
`date`	Yes
`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.
`precision`	No	Compact mode: round fractional numbers to this many decimals. Longitudes carry 14 by default; 2 is finer than any chart is drawn.

Output Schema

Name	Required	Description	Default
`date`	No
`shadowCard`	No
`personalityCard`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed4 schema fields changedNov 7, 2026

removedOutput schema / properties / date / anyOf

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

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

changedOutput schema / properties / personalityCard / anyOf

Previous value: -[
-  {
-    "additionalProperties": {},
-    "properties": {
-      "astrology": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "category": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "name": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "number": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "numerology": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "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"
-          }
-        ]
-      },
-      "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"
-  }
-]New value: +[
+  {
+    "additionalProperties": {},
+    "properties": {
+      "astrology": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "category": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "name": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "number": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "numerology": {
+        "type": [
+          "number",
+          "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"
+        ]
+      },
+      "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"
+  }
+]

changedOutput schema / properties / shadowCard / anyOf

Previous value: -[
-  {
-    "additionalProperties": {},
-    "properties": {
-      "astrology": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "category": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "name": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "number": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "numerology": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "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"
-          }
-        ]
-      },
-      "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"
-  }
-]New value: +[
+  {
+    "additionalProperties": {},
+    "properties": {
+      "astrology": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "category": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "name": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "number": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "numerology": {
+        "type": [
+          "number",
+          "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"
+        ]
+      },
+      "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"
+  }
+]

Changed1 schema field changedOct 6, 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

B3.2/5.0

Behavior3/5

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

Annotations already establish that this is a read-only, idempotent, non-destructive, closed-world operation. The description adds useful context such as the endpoint and a 10-credit Tier 1 cost, but it does not explain the returned pair or any other behavioral detail beyond those tags.

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

Conciseness4/5

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

The description is short and front-loads the concept, then presents endpoint, required input, and cost in a compact bracketed structure. It is efficient, though the core phrase is terse enough to be somewhat cryptic.

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?

For a read-only tarot computation with annotations and an output schema, the description covers the operational essentials: endpoint, required date, and cost. However, it leaves out when to choose this over sibling tarot tools and does not clarify the meaning of the required date parameter.

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 documents art, fields, and precision reasonably well, so most parameter meaning is already covered. The description only repeats that date is required, and neither the description nor the schema explains whether date means birth date or another event date, leaving the key required parameter semantically underspecified.

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 identifies a specific resource, the Shadow card pair, and explains that it is the major-arcana mirror of the personality card. That is clearer than a tautology, but it uses a noun phrase rather than a verb and does not distinguish this from nearby sibling tools such as soul_personality_card or draw_shadow_work.

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?

The description gives no explicit guidance on when to use this tool versus alternatives, nor any exclusions or prerequisites. The only usage-like information is that date is required.

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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