AstroWay Numerology

Soul Urge / Heart's Desire (pythagorean)

astroway_numerology_pythagorean_soul_urge

Read-onlyIdempotent

Calculate the Soul Urge number from the vowels of the full birth name. Numerology: Pythagorean system.

[Group: Numerology: Pythagorean] [Endpoint: POST /v1/numerology/pythagorean/soul-urge] [Required: name, date] [Cost: 10 credits (Tier 1)]

Input Schema

Name	Required	Description
`date`	Yes
`name`	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
`name`	No
`system`	No
`soulUrge`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed7 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"
+]
```

removedOutput schema / properties / name / anyOf

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

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

changedOutput schema / properties / soulUrge / anyOf

Previous value: -[
-  {
-    "additionalProperties": {},
-    "properties": {
-      "isMaster": {
-        "anyOf": [
-          {
-            "type": "boolean"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "meaning": {
-        "anyOf": [
-          {
-            "additionalProperties": {},
-            "properties": {
-              "archetype": {
-                "anyOf": [
-                  {
-                    "type": "string"
-                  },
-                  {
-                    "type": "null"
-                  }
-                ]
-              },
-              "number": {
-                "anyOf": [
-                  {
-                    "type": "number"
-                  },
-                  {
-                    "type": "null"
-                  }
-                ]
-              },
-              "shortRead": {
-                "anyOf": [
-                  {
-                    "type": "string"
-                  },
-                  {
-                    "type": "null"
-                  }
-                ]
-              },
-              "strengths": {
-                "anyOf": [
-                  {
-                    "items": {
-                      "anyOf": [
-                        {
-                          "type": "string"
-                        },
-                        {
-                          "type": "null"
-                        }
-                      ]
-                    },
-                    "type": "array"
-                  },
-                  {
-                    "type": "null"
-                  }
-                ]
-              }
-            },
-            "type": "object"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "raw": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "reduced": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "steps": {
-        "anyOf": [
-          {
-            "items": {
-              "anyOf": [
-                {
-                  "type": "number"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "type": "array"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      }
-    },
-    "type": "object"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "additionalProperties": {},
+    "properties": {
+      "isMaster": {
+        "type": [
+          "boolean",
+          "null"
+        ]
+      },
+      "meaning": {
+        "anyOf": [
+          {
+            "additionalProperties": {},
+            "properties": {
+              "archetype": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "number": {
+                "type": [
+                  "number",
+                  "null"
+                ]
+              },
+              "shortRead": {
+                "type": [
+                  "string",
+                  "null"
+                ]
+              },
+              "strengths": {
+                "anyOf": [
+                  {
+                    "items": {
+                      "type": [
+                        "string",
+                        "null"
+                      ]
+                    },
+                    "type": "array"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              }
+            },
+            "type": "object"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "raw": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "reduced": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "steps": {
+        "anyOf": [
+          {
+            "items": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "type": "array"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      }
+    },
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / system / anyOf

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

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

First observedOct 5, 2026

TDQS

A3.8/5.0

Behavior4/5

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

Annotations already cover safety (readOnly, idempotent, non-destructive, closed-world), so the description adds value elsewhere: it discloses the derivation method (vowels only, full birth name) and the cost of 10 credits at Tier 1, which matters for an agent deciding whether to call. It does not say whether results are deterministic across name spellings or what happens on unrecognized characters, so it stops short of a 5.

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 first sentence is front-loaded and does the real work. The bracketed block repeats structure (group/endpoint/required) but earns part of its space by surfacing cost and required params at a glance; the endpoint line is arguably redundant with the tool name.

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 cost is disclosed. The gaps are the unexplained `date` parameter and no note on name normalization (accents, hyphens, married vs birth name) — meaningful for a tool whose entire output depends on that single string.

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?

With 50% schema coverage, the description does useful work for `name` by specifying "full birth name" — a real constraint beyond the string type. However, `date` is required yet completely unexplained: a name-derived number logically needs no date, so the agent gains no understanding of why it must supply one or how it affects the result. `fields` and `precision` are documented in the schema already.

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?

"Calculate the Soul Urge number from the vowels of the full birth name" gives a specific verb, a specific derived resource, and even the algorithm input (vowels). Combined with "Numerology: Pythagorean system", it cleanly separates this tool from the Chaldean, Kabbalistic, and Vedic soul-urge siblings without the agent needing to open a schema.

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

Usage Guidelines3/5

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

The named system implies when to pick this variant over the Chaldean/Kabbalistic/Vedic equivalents, but nothing is stated explicitly — there is no "use this when the user asks for Pythagorean/Hebrew-tradition-agnostic numerology" framing, no prerequisite notes, and no mention of the chart-level tool that might bundle several numbers at once.

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

All AstroWay Numerology tools Inspect

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