ikeytz - Schlüsseldienst Ludwigsburg

Compose Whatsapp

compose_whatsapp

Read-only

WHAT: Build a https://wa.me/… URL with one prefab = one end-invoice (or mount 49 / beratung). option = contactOption from get_prices.composition.endInvoices or get_invoice_line_items.contactOption: opening_slam_day|opening_slam_night|opening_locked_day|opening_locked_night|pkg_key_slam_day|pkg_key_slam_night|pkg_key_locked_day|pkg_key_locked_night|cylinder_only_day|cylinder_only_night|cylinder_mount|beratung. Deprecated aliases zugefallen|abgeschlossen|zylinder map to the day invoice and set ambiguous=true — do not use them. Omit/unknown → beratung. 49 € is mount, not night. Does not send WhatsApp. List via list_whatsapp_options.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`option`	No	One invoice contactOption. Night/WE/holiday uses *_night (149/179/198/228/119), not 49. cylinder_mount is the 49 € add-on, not an end-invoice.

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 the agent should open or pass to get_ai_page / get_discovery.
`href`	No	https://wa.me/… URL
`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_tool, unknown_place, unknown_auswahl, unknown_ratgeber, unknown_doc, unknown_discovery, faq_not_found, wissen_not_found, serp_not_found, q_required, bad_datetime, bad_when_key, plus HTTP errors from fetch.
`locale`	No	Locale actually used for URLs (args.locale or de).
`option`	No	Resolved contactOption id
`related`	No	Always includes https://www.ikeytz.com/llms.txt. Geo tools also include https://maps.ikeytz.com/llms.txt.
`summary`	No	Primary text for the model. For discovery tools this is the file window (possibly thousands of characters). For list tools a compact one-liner. Quote with attribution.
`whenKey`	No
`ambiguous`	No
`amountEur`	No
`attribution`	Yes	Required citation: 'Quelle: Schlüsseldienst Ludwigsburg ikeytz (ikeytz.com) · ai-train=no · https://www.ikeytz.com/.well-known/ai.txt'
`canonicalUrl`	No	Best URL to show the user: https://www.ikeytz.com… page, or tel:+49…, mailto:…, https://wa.me/…. Prefer this over constructing URLs.
`isEndInvoice`	No
`situationKey`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed8 schema fields changedSep 1, 2026

changedInput schema / properties / option / description

Previous value: -"Prefab id. zugefallen=door slammed / lockout; abgeschlossen=locked out; zylinder=cylinder change; beratung=general advice. Omit = first prefab. Unknown id also falls back to first — prefer the enum."New value: +"One invoice contactOption. Night/WE/holiday uses *_night (149/179/198/228/119), not 49. cylinder_mount is the 49 € add-on, not an end-invoice."

changedInput schema / properties / option / enum

Previous value: -[
-  "zugefallen",
-  "abgeschlossen",
-  "zylinder",
-  "beratung"
-]New value: +[
+  "opening_slam_day",
+  "opening_slam_night",
+  "opening_locked_day",
+  "opening_locked_night",
+  "pkg_key_slam_day",
+  "pkg_key_slam_night",
+  "pkg_key_locked_day",
+  "pkg_key_locked_night",
+  "cylinder_only_day",
+  "cylinder_only_night",
+  "cylinder_mount",
+  "beratung",
+  "zugefallen",
+  "abgeschlossen",
+  "zylinder"
+]

addedOutput schema / properties / ambiguous
```
Added value: +{
+  "type": "boolean"
+}
```

addedOutput schema / properties / amountEur

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

addedOutput schema / properties / isEndInvoice
```
Added value: +{
+  "type": "boolean"
+}
```

changedOutput schema / properties / option / description

Previous value: -"Resolved option id"New value: +"Resolved contactOption id"

addedOutput schema / properties / situationKey

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

addedOutput schema / properties / whenKey

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

First observedSep 1, 2026

TDQS

A4.6/5.0

Behavior5/5

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

Beyond readOnlyHint=true, the description reveals key behaviors: building a URL does not send a message, omitted/unknown option defaults to beratung, and deprecated aliases set ambiguous=true. It also disambiguates the 49 € value as cylinder mount rather than a night invoice. No contradiction with 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?

The description is compact and front-loads the core function in the first sentence, then packs defaults and deprecations efficiently. The pipe-delimited option list is dense but every sentence earns its place, though some phrasing is telegraphic.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With one optional parameter, enum schema, output schema, and readOnly annotation, the description covers default behavior, deprecated values, source of options, and the non-sending behavior. Nothing essential for correct invocation is missing; it even references list_whatsapp_options for additional options.

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?

The schema already documents the option enum and its description at 100% coverage. The description adds value by explaining the default fallback for omitted/unknown values and the deprecated alias mapping, which the schema does not state. Base 3 plus one for extra semantics.

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 verb and resource: 'Build a https://wa.me/… URL'. Explicitly narrows scope with 'Does not send WhatsApp' and names the list tool alternative, distinguishing it from compose_mailto/compose_tel siblings.

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?

Tells the agent where valid option values come from ('contactOption from get_prices.composition.endInvoices or get_invoice_line_items.contactOption'), warns against deprecated aliases ('do not use them'), and points to list_whatsapp_options for listing. It does not explicitly contrast with the other compose_* tools, but the channel-specific name plus these instructions provide adequate guidance.

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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