ikeytz Einsatzgebiet-Karten

get_geschichte

Read-only

WHAT: Geschichte (history) text for one Einsatzgebiet Visitenkarte. Lookup slug|plz|name. RETURNS slug, name, geschichte. USE for place history prose on the map page. NEXT: get_lage, get_ai_page.

Input Schema

TableJSON Schema

Name	Required	Description
`plz`	No	German postcode (PLZ). Several Gebiete can share one PLZ (e.g. 71638). For single lookup first match wins; use find_by_plz for all matches.
`name`	No	German place name substring (case-insensitive, umlauts ok), e.g. Grünbühl, Pattonville. Used when slug/plz omitted.
`slug`	No	URL slug of one of the 52 Einsatzgebiete, e.g. pattonville, bietigheim-bissingen, walheim, gruenbuehl. Matches https://maps.ikeytz.com/{slug}. Lookup order when combined with plz/name: slug first.

Output Schema

TableJSON Schema

Name	Required	Description
`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.
`name`	No
`slug`	No
`tool`	Yes	Echo of the tool name that produced this object (e.g. get_service_area).
`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.
`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.
`geschichte`	No	Geschichte prose (may be empty)
`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.

Changed4 schema fields changedSep 3, 2026

addedInput schema / properties / name / description

Added value: +"German place name substring (case-insensitive, umlauts ok), e.g. Grünbühl, Pattonville. Used when slug/plz omitted."

addedInput schema / properties / plz / description

Added value: +"German postcode (PLZ). Several Gebiete can share one PLZ (e.g. 71638). For single lookup first match wins; use find_by_plz for all matches."

addedInput schema / properties / slug / description

Added value: +"URL slug of one of the 52 Einsatzgebiete, e.g. pattonville, bietigheim-bissingen, walheim, gruenbuehl. Matches https://maps.ikeytz.com/{slug}. Lookup order when combined with plz/name: slug first."

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"
+    },
+    "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"
+    },
+    "geschichte": {
+      "description": "Geschichte prose (may be empty)",
+      "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"
+    },
+    "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"
+    },
+    "name": {
+      "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"
+    },
+    "slug": {
+      "type": "string"
+    },
+    "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"
+    },
+    "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

A4.2/5.0

Behavior4/5

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

The readOnlyHint annotation already signals a safe read operation, and the description adds useful lookup behavior on top: slug-first ordering when parameters are combined, first-match-wins for shared PLZ, and case-insensitive name matching. It also states exactly what gets returned.

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?

The description uses a compact, labeled structure (WHAT, Lookup, RETURNS, USE, NEXT) that front-loads purpose, output, and usage. Every segment earns its place, and there is no filler or redundant restating of the input schema.

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 read-only tool with three optional parameters, full schema coverage, and an output schema, the description is nearly complete: it covers lookup order, return fields, the intended use case, and related next tools. The only minor gap is not specifying what happens if none of slug/plz/name are provided, but the schema already marks all as optional.

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%, and the parameter descriptions already explain PLZ sharing, name fallback, and slug-first lookup order. The tool description's 'Lookup slug|plz|name' line is a concise summary but does not add meaningful semantics beyond the schema, so the baseline 3 is appropriate.

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?

The description clearly states what the tool returns: German history text for one Einsatzgebiet Visitenkarte, with the specific lookup fields (slug, plz, name) and output fields (slug, name, geschichte). The 'USE for place history prose on the map page' line makes it easy to distinguish from the many get_* sibling tools.

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 a clear use context ('USE for place history prose on the map page') and points to related tools in NEXT (get_lage, get_ai_page). It does not explicitly say when not to use this tool, but the map-page context and schema note about find_by_plz provide enough orientation for an agent.

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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