| 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. | |
| tz | No | Abbreviation. | |
| iso | No | ISO-8601 with Berlin offset. | |
| date | No | YYYY-MM-DD in Berlin. | |
| hint | No | Present when ok=false. Absolute URL the agent should open or pass to get_ai_page / get_discovery. | |
| rule | No | Human rule string for day vs night. | |
| time | No | HH:MM:SS in Berlin (24h). | |
| tool | Yes | Echo of the tool name that produced this object (e.g. get_service_area). | |
| unix | No | Unix timestamp seconds. | |
| 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. | |
| stand | No | Human clock 'YYYY-MM-DD HH:MM:SS CEST|CET' Europe/Berlin. | |
| locale | No | Locale actually used for URLs (args.locale or de). | |
| holiday | No | true if date is a BW statutory holiday. | |
| 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. | |
| weekday | No | en-GB short weekday (Mon…Sun). | |
| whenKey | No | Price bucket. Pass to get_invoice_line_items.whenKey or use whenKey=now there. | |
| timezone | No | | |
| pricesTool | No | | |
| weekdayIso | No | ISO weekday 1=Monday … 7=Sunday. | |
| attribution | Yes | Required citation: 'Quelle: Schlüsseldienst Ludwigsburg ikeytz (ikeytz.com) · ai-train=no · https://www.ikeytz.com/.well-known/ai.txt' | |
| holidayName | No | German holiday name or null. Holidays force whenKey=night. | |
| invoiceTool | No | | |
| 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. | |