Subastech — subastas judiciales de inmuebles (BOE)

Buscar por referencia catastral, CRU, IDUFIR o BOE

buscar_por_codigo

Read-onlyIdempotent

Localiza subastas del BOE a partir de códigos: referencia catastral, CRU, IDUFIR o identificador BOE (hasta 5). Pública, sin cuenta; sin cuenta solo devuelve fichas vigentes en el catálogo público (con cuenta, también las archivadas con archivada: true).

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": {
      "codigos": "<codigos>"
    },
    "name": "buscar_por_codigo"
  }
}

Input Schema

Name	Required	Description	Default
`codigos`	Yes	Referencias catastrales, CRU, IDUFIR o identificadores BOE (1..5)

Output Schema

Name	Required	Description	Default
`cta`	No
`items`	Yes
`disclosure`	No
`no_encontrados`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed50 schema fields changedOct 25, 2026
- removedOutput schema / properties / items / items / properties / appraisal / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / appraisal / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / cadastral / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / cadastral / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / cadastralReview / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / cadastralReview / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / closedAt / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / closedAt / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / contentUpdatedAt / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / contentUpdatedAt / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / cp / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / cp / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / daysLeft / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / daysLeft / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / deposit / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / deposit / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / discount / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / discount / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / end / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / end / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / finalBid / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / finalBid / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / imageUrl / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / imageUrl / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / lat / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / lat / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / links / properties / catastroPdf / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / links / properties / catastroPdf / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / links / properties / streetView / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / links / properties / streetView / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / lon / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / lon / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / m2 / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / m2 / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / minimumBid / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / minimumBid / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / municipalitySlug / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / municipalitySlug / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / occupied / anyOf
```
Removed value: -[
-  {
-    "type": "boolean"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / occupied / type
```
Added value: +[
+  "boolean",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / provinceSlug / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / provinceSlug / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / ref / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / ref / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / status / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / status / type
```
Added value: +[
+  "string",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / valueAuction / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / valueAuction / type
```
Added value: +[
+  "number",
+  "null"
+]
```
- removedOutput schema / properties / items / items / properties / valueM2 / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / items / items / properties / valueM2 / type
```
Added value: +[
+  "number",
+  "null"
+]
```

Changed2 schema fields changedOct 13, 2026

addedOutput schema / properties / items / items / properties / cadastralReview

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

changedOutput schema / properties / items / items / 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 / items / items / 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

A3.7/5.0

Behavior4/5

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

Annotations already cover read-only, idempotent, closed-world safety, so credit is for real added context: no account required, and unauthenticated calls return only current ('vigentes') catalog entries while authenticated calls also surface archived ones flagged with `archivada: true`. That result-scoping difference is exactly the kind of behavior an agent cannot get from annotations.

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?

Two sentences with the purpose front-loaded and no wasted preamble. Minor redundancy in 'Pública, sin cuenta; sin cuenta solo devuelve…' which restates the same access condition twice.

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?

Single fully-described parameter, an output schema that removes the need to explain return values, and annotations covering the safety profile. The description fills the one remaining gap — access tier and archived-result visibility — so an agent has what it needs to call this correctly.

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 description coverage is 100%, so the schema already documents the `codigos` array, its item types, and constraints. The description largely repeats that (code types, 'hasta 5') without adding format hints or validation guidance, so 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?

States a specific verb and resource — 'Localiza subastas del BOE' — and pins the input mode to codes, listing all four code types. This implicitly separates it from keyword-style siblings like buscar_subastas, but no sibling is named, so the differentiation is left to inference.

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 code-based trigger ('a partir de códigos') is stated, so usage is implied, but there is no explicit when-to-use/when-not guidance or pointer to the text-search alternative for agents who lack a code. The account/no-account clause is about access behavior rather than tool selection.

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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