Subastech — subastas judiciales de inmuebles (BOE)

Análisis de una subasta (veredicto y ejes)

analisis_subasta

Read-onlyIdempotent

Veredicto de viabilidad y ejes (cargas, posesión, rentabilidad, titularidad) de una subasta. Requiere cuenta (scope informes:read) y plan Pro o superior; con Radar/Starter devuelve locked con upgradeUrl. No consume cuota.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "id": "<id>"
    },
    "name": "analisis_subasta"
  }
}

Input Schema

Name	Required	Description	Default
`id`	Yes	Identificador público de la subasta (10 caracteres)

Output Schema

Name	Required	Description
`cta`	No
`ejes`	No
`locked`	No
`subasta`	Yes
`veredicto`	No
`disclosure`	No
`informe_url`	Yes
`analisis_listo`	Yes	false si polSaaS aún está generando el veredicto

Schema Changelog

Changes observed during successful MCP inspections.

Changed55 schema fields changedOct 25, 2026

removedOutput schema / properties / subasta / properties / appraisal / anyOf

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

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

changedOutput schema / properties / subasta / properties / axes / anyOf

Previous value: -[
-  {
-    "additionalProperties": {},
-    "properties": {
-      "cargas": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "cargasMotivo": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "posesion": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "rentab": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "titularidad": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      }
-    },
-    "required": [
-      "cargas",
-      "posesion",
-      "rentab",
-      "titularidad"
-    ],
-    "type": "object"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "additionalProperties": {},
+    "properties": {
+      "cargas": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "cargasMotivo": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "posesion": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "rentab": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "titularidad": {
+        "type": [
+          "number",
+          "null"
+        ]
+      }
+    },
+    "required": [
+      "cargas",
+      "posesion",
+      "rentab",
+      "titularidad"
+    ],
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / subasta / properties / cadastral / anyOf

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

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

removedOutput schema / properties / subasta / properties / cadastralReview / anyOf

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

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

removedOutput schema / properties / subasta / properties / closedAt / anyOf

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

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

removedOutput schema / properties / subasta / properties / contentUpdatedAt / anyOf

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

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

removedOutput schema / properties / subasta / properties / cp / anyOf

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

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

removedOutput schema / properties / subasta / properties / daysLeft / anyOf

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

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

removedOutput schema / properties / subasta / properties / deposit / anyOf

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

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

removedOutput schema / properties / subasta / properties / discount / anyOf

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

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

removedOutput schema / properties / subasta / properties / end / anyOf

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

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

removedOutput schema / properties / subasta / properties / finalBid / anyOf

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

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

removedOutput schema / properties / subasta / properties / imageUrl / anyOf

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

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

removedOutput schema / properties / subasta / properties / lat / anyOf

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

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

removedOutput schema / properties / subasta / properties / level / anyOf

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

addedOutput schema / properties / subasta / properties / level / type
```
Added value: +[
+  "string",
+  "null"
+]
```
removedOutput schema / properties / subasta / properties / links / properties / catastroPdf / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
addedOutput schema / properties / subasta / properties / links / properties / catastroPdf / type
```
Added value: +[
+  "string",
+  "null"
+]
```
removedOutput schema / properties / subasta / properties / links / properties / streetView / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
addedOutput schema / properties / subasta / properties / links / properties / streetView / type
```
Added value: +[
+  "string",
+  "null"
+]
```

removedOutput schema / properties / subasta / properties / lon / anyOf

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

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

removedOutput schema / properties / subasta / properties / m2 / anyOf

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

addedOutput schema / properties / subasta / properties / m2 / type
```
Added value: +[
+  "number",
+  "null"
+]
```

removedOutput schema / properties / subasta / properties / minimumBid / anyOf

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

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

removedOutput schema / properties / subasta / properties / municipalitySlug / anyOf

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

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

removedOutput schema / properties / subasta / properties / occupied / anyOf

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

addedOutput schema / properties / subasta / properties / occupied / type
```
Added value: +[
+  "boolean",
+  "null"
+]
```

removedOutput schema / properties / subasta / properties / provinceSlug / anyOf

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

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

removedOutput schema / properties / subasta / properties / ref / anyOf

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

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

removedOutput schema / properties / subasta / properties / score / anyOf

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

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

removedOutput schema / properties / subasta / properties / status / anyOf

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

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

removedOutput schema / properties / subasta / properties / valueAuction / anyOf

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

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

removedOutput schema / properties / subasta / properties / valueM2 / anyOf

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

addedOutput schema / properties / subasta / properties / valueM2 / type
```
Added value: +[
+  "number",
+  "null"
+]
```

Changed3 schema fields changedOct 13, 2026

changedOutput schema / properties / subasta / properties / axes / anyOf

Previous value: -[
-  {
-    "additionalProperties": {},
-    "properties": {
-      "cargas": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "posesion": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "rentab": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "titularidad": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      }
-    },
-    "required": [
-      "cargas",
-      "posesion",
-      "rentab",
-      "titularidad"
-    ],
-    "type": "object"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "additionalProperties": {},
+    "properties": {
+      "cargas": {
+        "anyOf": [
+          {
+            "type": "number"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "cargasMotivo": {
+        "anyOf": [
+          {
+            "type": "string"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "posesion": {
+        "anyOf": [
+          {
+            "type": "number"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "rentab": {
+        "anyOf": [
+          {
+            "type": "number"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "titularidad": {
+        "anyOf": [
+          {
+            "type": "number"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      }
+    },
+    "required": [
+      "cargas",
+      "posesion",
+      "rentab",
+      "titularidad"
+    ],
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]

addedOutput schema / properties / subasta / properties / cadastralReview

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}

changedOutput schema / properties / subasta / required

Previous value: -[
-  "id",
-  "type",
-  "isNew",
-  "title",
-  "address",
-  "municipio",
-  "provincia",
-  "cp",
-  "ref",
-  "provinceSlug",
-  "municipalitySlug",
-  "end",
-  "contentUpdatedAt",
-  "daysLeft",
-  "valueAuction",
-  "valueM2",
-  "minimumBid",
-  "deposit",
-  "appraisal",
-  "occupied",
-  "discount",
-  "m2",
-  "status",
-  "cadastral",
-  "imageUrl",
-  "lat",
-  "lon",
-  "lot",
-  "finalBid",
-  "resultStatus",
-  "closedAt",
-  "phase",
-  "url",
-  "links",
-  "fuente"
-]New value: +[
+  "id",
+  "type",
+  "isNew",
+  "title",
+  "address",
+  "municipio",
+  "provincia",
+  "cp",
+  "ref",
+  "provinceSlug",
+  "municipalitySlug",
+  "end",
+  "contentUpdatedAt",
+  "daysLeft",
+  "valueAuction",
+  "valueM2",
+  "minimumBid",
+  "deposit",
+  "appraisal",
+  "occupied",
+  "discount",
+  "m2",
+  "status",
+  "cadastral",
+  "cadastralReview",
+  "imageUrl",
+  "lat",
+  "lon",
+  "lot",
+  "finalBid",
+  "resultStatus",
+  "closedAt",
+  "phase",
+  "url",
+  "links",
+  "fuente"
+]

Changed1 schema field changedOct 2, 2026

changedOutput schema / properties / subasta / properties / phase / enum

Previous value: -[
-  "activa",
-  "historica",
-  "descartada"
-]New value: +[
+  "activa",
+  "historica",
+  "descartada",
+  "suspendida"
+]

Changed1 schema field changedSep 11, 2026
- addedInput schema / additionalProperties
```
Added value: +false
```
First observedSep 6, 2026

TDQS

A4.1/5.0

Behavior5/5

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

Beyond the annotations (readOnly, idempotent, non-destructive), the description discloses the auth scope needed, the plan-tier gating, the degraded `locked`/`upgradeUrl` response shape, and that it consumes no quota. These are exactly the operational traits an agent cannot infer from the structured fields.

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?

Three tight sentences: first the capability, then the access requirement, then the failure-mode and cost caveat. No filler, and the core purpose is front-loaded.

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?

With an output schema present, return values need not be enumerated, and the gating/quota behavior is fully covered. Minor gap: nothing about behavior when the `id` doesn't exist or is malformed, which matters for a lookup tool.

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?

Schema coverage is 100% and the single `id` parameter already carries its own pattern description, so the schema does the heavy lifting. The description only implies the identifier refers to an auction and adds no format or constraint detail beyond the schema — the baseline 3 applies.

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 concrete verb+resource: it returns a viability verdict plus four named analysis axes (cargas, posesión, rentabilidad, titularidad) for a single auction. That is far more specific than the title alone, but it never explicitly distinguishes itself from the sibling `subasta` or `informe`, which an agent could plausibly confuse it with.

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

Usage Guidelines4/5

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

It gives clear preconditions for use — account required, `informes:read` scope, Pro plan or higher — and states what happens on lower tiers (`locked` + `upgradeUrl`). It stops short of explicitly naming an alternative sibling tool for the plain-data case, but the conditions that select this tool are unambiguous.

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

All Subastech — subastas judiciales de inmuebles (BOE) tools Inspect

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