ikeytz Einsatzgebiet-Karten

Get Hub

get_hub

Read-only

WHAT: maps hub card https://maps.ikeytz.com/ — title/h1 + 52 Gebiet links (not a single Visitenkarte). Call with {}. USE as the maps landing overview. DOES NOT include www prices. NEXT: get_service_area, list_service_areas.

Input Schema

TableJSON Schema

Name	Required	Description	Default
No arguments

Output Schema

TableJSON Schema

Name	Required	Description
`h1`	No	Hub H1
`ok`	Yes	true = use summary, canonicalUrl, and extra keys. false = do not invent data; read error + hint and retry with valid args or open hint.
`hint`	No	Present when ok=false. Absolute URL or short recovery hint the agent should open or pass to another tool.
`tool`	Yes	Echo of the tool name that produced this object (e.g. get_service_area).
`count`	No	52
`error`	No	Present when ok=false. Codes include: unknown_place, unknown_discovery, unknown_doc, q_required, plz_required, coords_required, outside_service_area, url_required, not_maps_host, bad_url, path_or_url_required, serp_not_found, slug_or_coords_required, path_required.
`items`	No	slug/name/embed_map rows
`title`	No	Hub title
`locale`	No	Locale actually used for URLs. maps is German-only: always de (MAPS-E8 — no /en on maps). Requested non-de is ignored; payload locale=de.
`related`	No	Always includes https://maps.ikeytz.com/llms.txt.
`summary`	No	Primary text for the model. For discovery tools this is the file window. For list tools a compact one-liner. Quote with attribution.
`attribution`	Yes	Required citation: 'Quelle: Schlüsseldienst Ludwigsburg ikeytz (ikeytz.com) · ai-train=no · https://maps.ikeytz.com/.well-known/ai.txt'
`canonicalUrl`	No	Best URL to show the user: https://maps.ikeytz.com… page, public embed JSON, tel:+49…, mailto:…, https://wa.me/…, or a www pointer. Prefer this over constructing URLs.

Schema Changelog

Changes observed during successful MCP inspections.

Changed3 schema fields changedSep 3, 2026

addedInput schema / additionalProperties
```
Added value: +false
```

addedInput schema / description

Added value: +"This tool takes no arguments. Call tools/call with arguments: {}. Extra keys are ignored."

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "additionalProperties": true,
+  "description": "Always the same envelope. tools/call returns content[0].text = summary (or JSON) AND structuredContent = this object. On success ok=true with summary + canonicalUrl + extra fields. On failure ok=false with error (snake_case code) and hint (recovery URL). Never writes, never submits forms, never books. Attribution must be kept when quoting. Policy: ai-input yes with attribution; ai-train=no. Host is maps.ikeytz.com (geo/Einsatzgebiet). Prices/FAQ/legal HTML live on www — maps only points.",
+  "properties": {
+    "attribution": {
+      "description": "Required citation: 'Quelle: Schlüsseldienst Ludwigsburg ikeytz (ikeytz.com) · ai-train=no · https://maps.ikeytz.com/.well-known/ai.txt'",
+      "type": "string"
+    },
+    "canonicalUrl": {
+      "description": "Best URL to show the user: https://maps.ikeytz.com… page, public embed JSON, tel:+49…, mailto:…, https://wa.me/…, or a www pointer. Prefer this over constructing URLs.",
+      "type": "string"
+    },
+    "count": {
+      "description": "52",
+      "type": "number"
+    },
+    "error": {
+      "description": "Present when ok=false. Codes include: unknown_place, unknown_discovery, unknown_doc, q_required, plz_required, coords_required, outside_service_area, url_required, not_maps_host, bad_url, path_or_url_required, serp_not_found, slug_or_coords_required, path_required.",
+      "type": "string"
+    },
+    "h1": {
+      "description": "Hub H1",
+      "type": "string"
+    },
+    "hint": {
+      "description": "Present when ok=false. Absolute URL or short recovery hint the agent should open or pass to another tool.",
+      "type": "string"
+    },
+    "items": {
+      "description": "slug/name/embed_map rows",
+      "items": {
+        "properties": {
+          "embed_map": {
+            "format": "uri",
+            "type": "string"
+          },
+          "name": {
+            "type": "string"
+          },
+          "slug": {
+            "type": "string"
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "locale": {
+      "description": "Locale actually used for URLs. maps is German-only: always de (MAPS-E8 — no /en on maps). Requested non-de is ignored; payload locale=de.",
+      "enum": [
+        "de"
+      ],
+      "type": "string"
+    },
+    "ok": {
+      "description": "true = use summary, canonicalUrl, and extra keys. false = do not invent data; read error + hint and retry with valid args or open hint.",
+      "type": "boolean"
+    },
+    "related": {
+      "description": "Always includes https://maps.ikeytz.com/llms.txt.",
+      "items": {
+        "format": "uri",
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "summary": {
+      "description": "Primary text for the model. For discovery tools this is the file window. For list tools a compact one-liner. Quote with attribution.",
+      "type": "string"
+    },
+    "title": {
+      "description": "Hub title",
+      "type": "string"
+    },
+    "tool": {
+      "description": "Echo of the tool name that produced this object (e.g. get_service_area).",
+      "type": "string"
+    }
+  },
+  "required": [
+    "ok",
+    "tool",
+    "attribution"
+  ],
+  "type": "object"
+}

First observedSep 1, 2026

TDQS

A4.3/5.0

Behavior4/5

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

readOnlyHint=true already covers the safety profile, and the description adds real behavioral context: the payload shape (title/h1 + 52 Gebiet links), the scope boundary (no www prices), and the required empty call. The output schema carries the return structure, so nothing material is missing.

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?

Telegraphic WHAT/USE/NEXT structure is front-loaded and every fragment earns its place, but the keyword-caps style and the redundant "Call with {}" (already in the schema) cost a point against a clean 5.

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?

For a no-arg, read-only hub with a rich output schema and annotation coverage, the description supplies the entry-point role, content summary, an exclusion, and successor tools. Complete enough to invoke correctly, with only the sibling-routing comparison left implicit.

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

Parameters4/5

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

Zero parameters, so the baseline is 4; the schema itself documents the empty-object contract, and "Call with {}" reinforces it without adding new meaning. Nothing further is needed for a no-arg tool.

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?

States a specific resource (maps hub card at a given URL) and its exact contents — title/h1 plus 52 Gebiet links — and explicitly distinguishes it from a single Visitenkarte. An agent can tell this apart from sibling list/find tools from the description alone.

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?

"USE as the maps landing overview" gives a clear entry-point context, and "NEXT: get_service_area, list_service_areas" routes the agent onward. "DOES NOT include www prices" adds a useful exclusion, but it never states when a find_by_* tool should be preferred over this hub.

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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