type: user

role: user

content:
Du recherchierst B2B-Firmendaten zu einem deutschen Kunden eines Handwerksgroßhändlers. Nutze WebSearch und WebFetch (v.a. northdata.de, Google, Firmenwebsite, 11880.com, gelbeseiten.de).

Firma: "Melzer Kälte Klima Lüftung GmbH", Am Sportplatz 2, PLZ 56348 (Region Rhein-Lahn-Kreis, Rheinland-Pfalz), Deutschland.

Ermittle über northdata.de (Suche nach "Melzer Kälte Klima Lüftung GmbH") und Google folgende Punkte:
- Branche (NACE-Code falls ermittelbar, sonst Klartext-Branche, z.B. "Kälte-/Klimatechnik, Lüftungsbau")
- Gewerk: klar "SHK/HLK" (Kälte/Klima/Lüftung)
- Segment: Handwerk
- Mitarbeitergrößenklasse (1-9, 10-49, 50-249 etc.)
- Umsatzgrößenklasse in "X-Y Mio EUR" Format
- Gründungsjahr (aus Handelsregister-Eintragungsdatum oder Firmenhistorie)
- Rechtsform (GmbH)
- Website
- Genauer Ort (welche Gemeinde in PLZ 56348, z.B. Nassau, Bad Ems etc.) und Bundesland (Rheinland-Pfalz)
- Handelsregisternummer (HRB-Nummer, Amtsgericht)
- Konfidenz des Firmenmatches (0-1)
- Ob Adresse "Am Sportplatz 2" bestätigt werden konnte (ja/nein)
- Primäre Quelle (z.B. northdata.de mit Link)
- Kurzer Klartext-Beleg

Recherchiere aktiv auf northdata.de nach dem genauen Firmennamen, prüfe auch Google-Suche "Melzer Kälte Klima Lüftung GmbH" für Website/Adresse.

Antworte mit kompakter Übersicht in Klartext (kein JSON), max. 300 Wörter, inkl. genutzter Quellen/URLs.

userType: external

entrypoint: cli

gitBranch: main

slug: lucky-discovering-sparrow


addedNames: CronCreate CronDelete CronList DesignSync EnterWorktree ExitWorktree Monitor NotebookEdit PushNotification RemoteTrigger SendMessage TaskStop WebFetch WebSearch

type: attachment


content:
- git-sync: Commit + Push aller persistent konfigurierten Projekt-Repos
- deep-research: Deep research harness — fan-out web searches, fetch sources, adversarially verify claims, synthesize a cited report. - When the user wants a deep, multi-source, fact-checked research report on any topic. BEFORE invoking, check if the question is specific enough to research directly — if underspecified (e.g., "what car to buy" without budget/use-case/region), ask 2-3 clarifying questions to narrow scope. Then pass the refined question as args, weaving the answers in.
- dataviz: Use this skill whenever you are about to create ANY chart, graph, plot, dashboard, or data visualization, in ANY output medium — an HTML or React artifact, inline SVG, plotting code in any library (matplotlib, plotly, d3, Recharts, …), an image/PNG you will render and upload, or a chart shared into Slack. Read it BEFORE writing the first line of chart code, choosing chart colors, building a stat tile / meter / KPI row, or laying out a dashboard. Produces visualizations that read as one system — elegant, accessible, consistent in light and dark — using a brand-neutral placeholder palette you swap for your own. Teaches a design-system-agnostic method: a form heuristic, a color formula with a runnable validator, mark specs, and interaction rules. A validated default palette is documented in `references/palette.md` — swap that file's values for your brand's. Triggers on: "chart", "graph", "plot", "data viz", "visualization", "dashboard", "analytics", "visualize data", "categorical colors", "sequential / diverging palette", "stat tile", "sparkline", "heatmap", "legend", "axis", "tooltip", "chart colors", "color by series".
- artifact-design: Design guidance and fundamentals for Artifacts.
- update-config: Use this skill to configure the Claude Code harness via settings.json. Automated behaviors ("from now on when X", "each time X", "whenever X", "before/after X") require hooks configured in settings.json - the harness executes these, not Claude, so memory/preferences cannot fulfill them. Also use for: permissions ("allow X", "add permission", "move permission to"), env vars ("set X=Y"), hook troubleshooting, or any changes to settings.json/settings.local.json files. Examples: "allow npm commands", "add bq permission to global settings", "move permission to user settings", "set DEBUG=true", "when claude stops show X". For simple settings like theme/model, suggest the /config command.
- keybindings-help: Use when the user wants to customize keyboard shortcuts, rebind keys, add chord bindings, or modify ~/.claude/keybindings.json. Examples: "rebind ctrl+s", "add a chord shortcut", "change the submit key", "customize keybindings".
- verify: Verify that a code change actually does what it's supposed to by exercising it end-to-end and observing behavior — drive the affected flow, not just tests or typecheck. Run before committing nontrivial changes; bootstraps this repo's project verify skill if none exists yet. Don't invoke it on a diff that only touches tests, docs, or other code with no runtime surface to drive (a change to product source always has one) — there's nothing to observe.
- code-review: Review the current diff for correctness bugs and reuse/simplification/efficiency cleanups at the given effort level (low/medium: fewer, high-confidence findings; high→max: broader coverage, may include uncertain findings; ultra: deep multi-agent review in the cloud). Pass --comment to post findings as inline PR comments, or --fix to apply the findings to the working tree after the review.
- simplify: Review the changed code for reuse, simplification, efficiency, and altitude cleanups, then apply the fixes. Quality only — it does not hunt for bugs; use /code-review for that.
- fewer-permission-prompts: Scan your transcripts for common read-only Bash and MCP tool calls, then add a prioritized allowlist to project .claude/settings.json to reduce permission prompts.
- loop: Run a prompt or slash command on a recurring interval (e.g. /loop 5m /foo). Omit the interval to let the model self-pace. - When the user wants to set up a recurring task, poll for status, or run something repeatedly on an interval (e.g. "check the deploy every 5 minutes", "keep running /babysit-prs"). Do NOT invoke for one-off tasks.
- schedule: Create, update, list, or run scheduled cloud agents (routines) that execute on a cron schedule. - When the user wants to schedule a recurring cloud agent, set up automated tasks, create a cron job for Claude Code, or manage their scheduled agents/routines. Also use when the user wants a one-time scheduled run ("run this once at 3pm", "remind me to check X tomorrow").
- claude-api: Reference for the Claude API / Anthropic SDK — model ids, pricing, params, streaming, tool use, MCP, agents, caching, token counting, model migration.
TRIGGER — read BEFORE opening the target file; don't skip because it "looks like a one-liner" — whenever: the prompt names Claude/Anthropic in any form (Claude, Anthropic, Fable, Opus, Sonnet, Haiku, `anthropic`, `@anthropic-ai`, `claude-*`, `us.anthropic.*`, `[1m]`); the user asks about an LLM (pricing/model choice/limits/caching) — never answer from memory; OR the task is LLM-shaped with provider unstated (agent/MCP/tool-definition/multi-agent/RAG/LLM-judge/computer-use; generate/summarize/extract/classify/rewrite/converse over NL; debugging refusals/cutoffs/streaming/tool-calls/tokens).
SKIP only when another provider is being worked on (overrides all triggers): OpenAI/GPT/Gemini/Llama/Mistral/Cohere/Ollama named in the query; OR `grep -rE 'openai|langchain_openai|google.generativeai|genai|mistralai|cohere|ollama'` over the project hits (run this grep FIRST if no provider named — don't Read the file).
- run: Launch and drive this project's app to see a change working. Use when asked to run, start, or screenshot the app, or to confirm a change works in the real app (not just tests). First looks for a project skill that already covers launching the app; otherwise falls back to built-in patterns per project type (CLI, server, TUI, Electron, browser-driven, library).
- init: Initialize a new CLAUDE.md file with codebase documentation
- review: Review a GitHub pull request; for your working diff use /code-review
- security-review: Complete a security review of the pending changes on the current branch

names: git-sync deep-research dataviz artifact-design update-config keybindings-help verify code-review simplify fewer-permission-prompts loop schedule claude-api run init review security-review


type: message

role: assistant

type: thinking

service_tier: standard

attributionAgent: general-purpose

type: assistant


ToolSearch

query: select:WebSearch,WebFetch

type: direct

speed: standard


tool_name: WebSearch

tool_name: WebFetch

matches: WebSearch WebFetch

query: select:WebSearch,WebFetch


WebSearch

query: "Melzer Kälte Klima Lüftung GmbH" northdata


query: "Melzer Kälte Klima Lüftung GmbH" 56348


content:
Web search results for query: ""Melzer Kälte Klima Lüftung GmbH" 56348"

Links: [{"title":"Melzer Kälte Klima Lüftung GmbH in 56348 Bornich","url":"https://www.gelbeseiten.de/gsbiz/2b4369b1-242b-4f6e-8c1d-033c3ac9b3b3"},{"title":"Melzer Kälte Klima Lüftung GmbH, Bornich | Firmenauskunft","url":"https://firmeneintrag.creditreform.de/56348/6070070949/MELZER_KAELTE_KLIMA_LUEFTUNG_GMBH"},{"title":"Melzer - Kälte-, Klima und Lüftungstechnik | Impressum","url":"https://www.melzer.net/impressum/"},{"title":"Melzer Kälte Klima Lüftung GmbH - Managing Director: Axel Melzer, Martin Melzer · Change of headquarters: Universal Klimatechnik GmbH · Address · Capital: €102,300 · Shareholder agreement · Proxy policy · Corporate Purpose","url":"https://www.northdata.com/?id=5067265081"},{"title":"Melzer - Kälte-, Klima und Lüftungstechnik | Startseite","url":"https://www.melzer.net/"},{"title":"Melzer Kälte Klima Lüftung Gmbh - Bornich 56348 (Rhein-lahn-kreis), A","url":"https://de.kompass.com/c/melzer-kalte-klima-luftung-gmbh/de746266/"},{"title":"ᐅ Melzer Kälte Klima Lüftung GmbH in Bornich","url":"https://www.oeffnungszeitenbuch.de/filiale/Bornich-Melzer%20Kaelte%20Klima%20Lu%26%23776%3Bftung%20GmbH-4504182J.html"},{"title":"Melzer Kälte + Klima GmbH | cold.world","url":"https://cold.world/melzer-kalte-klima-gmbh"},{"title":"Melzer - Kälte-, Klima und Lüftungstechnik | Standorte","url":"https://www.melzer.net/unternehmen/standorte/"},{"title":"Melzer Kälte Klima Lüftung GmbH, Bornich, Germany","url":"https://www.northdata.com/Melzer%20K%C3%A4lte%20Klima%20L%C3%BCftung%20GmbH,%20Bornich/Amtsgericht%20Koblenz%20HRB%2026544"}]

Based on the search results, here's what I found about Melzer Kälte Klima Lüftung GmbH in 56348:

Melzer Kälte Klima Lüftung GmbH is located at Am Sportplatz 2, 56348 Bornich, Germany, and specializes in the sale, assembly, and customer service of refrigeration and air conditioning systems, as well as electrical installation and building technology.

**Company Details:**
- The company is registered as a limited liability company (GmbH) in the commercial register of Amtsgericht Koblenz under registration number HRB 26544.
- The company is economically active.
- The company is currently led by 3 managers (1 proxy and 2 managing directors).
- The company operates 7 locations.

**Contact Information:**
Phone: 06771–9300 0, Email: info@melzer.net

As a specialist in air conditioning, refrigeration, and ventilation technology in the Rhine-Main region, Melzer combines experience, knowledge, and ideas with unique service.

REMINDER: You MUST include the sources above in your response to the user using markdown hyperlinks.

query: "Melzer Kälte Klima Lüftung GmbH" 56348

title: Melzer Kälte + Klima GmbH | cold.world


content:
Web search results for query: ""Melzer Kälte Klima Lüftung GmbH" northdata"

Links: [{"title":"Melzer Kälte Klima Lüftung GmbH, Bornich, Germany","url":"https://www.northdata.com/Melzer%20K%C3%A4lte%20Klima%20L%C3%BCftung%20GmbH,%20Bornich/Amtsgericht%20Koblenz%20HRB%2026544"},{"title":"Melzer Kälte Klima Lüftung GmbH - Managing Director: Axel Melzer, Martin Melzer · Change of headquarters: Universal Klimatechnik GmbH · Address · Capital: €102,300 · Shareholder agreement · Proxy policy · Corporate Purpose","url":"https://www.northdata.com/?id=5067265081"},{"title":"Küstermann & Melzer Kälte Klima Lüftung GmbH, Wiesbaden, Germany","url":"https://www.northdata.com/K%C3%BCstermann%20&%20Melzer%20K%C3%A4lte%20Klima%20L%C3%BCftung%20GmbH,%20Wiesbaden/HRB%2030060"},{"title":"Küstermann & Melzer Kälte Klima Lüftung GmbH - Registration · Managing Director: Axel Melzer, Martin Melzer · Address · Capital: €25,000 · Shareholder agreement · Proxy policy · Corporate Purpose","url":"https://www.northdata.com/?id=4251225083"},{"title":"Melzer - Kälte-, Klima und Lüftungstechnik | Startseite","url":"https://www.melzer.net/"},{"title":"Martin Melzer, Patersberg, Germany","url":"https://www.northdata.com/Melzer,%20Martin,%20Patersberg/tlo"},{"title":"Axel Melzer, Nastätten, Germany","url":"https://www.northdata.com/Melzer,%20Axel,%20Nast%C3%A4tten/12dw"},{"title":"Melzer Kälte-Klima","url":"https://de.linkedin.com/company/melzer-k%C3%A4lte-klima"},{"title":"Melzer Kälte·Klima·Lüftung | Bornich | Facebook","url":"https://www.facebook.com/MelzerKaelteKlima/"},{"title":"Melzer Kälte + Klima GmbH - Ihre zuverlässige Partner für Klimatechnik im Rhein-Main-Gebiet","url":"https://www.wlw.de/de/firma/melzer-kaelte-klima-gmbh-961661"}]

Based on the search results, here's what I found about Melzer Kälte Klima Lüftung GmbH on northdata:

## Company Information

Melzer Kälte Klima Lüftung GmbH is located at Am Sportplatz 2, D-56348 Bornich, registered with Amtsgericht Koblenz HRB 26544.

## Management and Ownership

The managing directors are Axel Melzer and Martin Melzer. The share capital is EUR 102,300.00.

## Business Purpose

The company's business is the sale, assembly, and after-sales service of refrigeration and air conditioning as well as electrical installation and building technology.

## History

The Shareholders' Meeting of December 3, 2018 decided to transfer the company's registered office from Frankenthal (previously Amtsgericht Ludwigshafen a. Rhein HRB 63399) to Bornich.

## General Business Operations

The company operates as a specialist for climate, refrigeration and ventilation technology in the Rhein-Main region, combining experience, knowledge and ideas with unique service.

REMINDER: You MUST include the sources above in your response to the user using markdown hyperlinks.

query: "Melzer Kälte Klima Lüftung GmbH" northdata

title: Martin Melzer, Patersberg, Germany

title: Axel Melzer, Nastätten, Germany

title: Melzer Kälte-Klima


WebFetch

prompt: Extrahiere: Gründungsjahr/Ersteintragung, Mitarbeiterzahl/Größenklasse, Umsatz/Umsatzklasse, NACE-Code/Branche, genaue Adresse, Rechtsform, Handelsregisternummer, Amtsgericht.


prompt: Extrahiere: vollständige Firmenadresse, Handelsregisternummer, Amtsgericht, Geschäftsführer.


content:
# Unternehmensangaben - Melzer Kälte Klima Lüftung GmbH

**Vollständige Firmenadresse:**
Am Sportplatz 2, 56348 Bornich

**Handelsregisternummer:**
HRB 26544

**Amtsgericht:**
Amtsgericht Koblenz

**Geschäftsführer:**
Martin Melzer & Axel Melzer

codeText: OK


content:
# Melzer Kälte Klima Lüftung GmbH - Extrahierte Informationen

**Gründungsjahr/Ersteintragung:**
Die ursprüngliche Registrierung erfolgte am 20. Dezember 2004 als "Universal-Klimatechnik GmbH"

**Mitarbeiterzahl/Größenklasse:**
Nicht öffentlich verfügbar (nur für Premium-Abonnenten)

**Umsatz/Umsatzklasse:**
Nicht öffentlich verfügbar (nur für Premium-Abonnenten)

**NACE-Code/Branche:**
Nicht angegeben; Geschäftsbereich: "Verkauf, Montage, Kundendienst von Kälte- und Klimaanlagen sowie Elektroinstallation und Gebäudetechnik"

**Genaue Adresse:**
"Am Sportplatz 2, 56348 Bornich, Germany"

**Rechtsform:**
GmbH (Gesellschaft mit beschränkter Haftung)

**Handelsregisternummer:**
HRB 26544

**Amtsgericht:**
"District Court of Koblenz" (Amtsgericht Koblenz)


type: text

text:
Alle Kernpunkte sind bestätigt. Recherche abgeschlossen.

**Melzer Kälte Klima Lüftung GmbH**

- **Branche:** Kälte-/Klimatechnik, Lüftungsbau; lt. Handelsregister-Gegenstand: Verkauf, Montage, Kundendienst von Kälte- und Klimaanlagen sowie Elektroinstallation und Gebäudetechnik. NACE-Code nicht öffentlich einsehbar (Northdata zeigt keinen).
- **Gewerk:** SHK/HLK (Kälte/Klima/Lüftung)
- **Segment:** Handwerk
- **Mitarbeitergrößenklasse:** nicht öffentlich ermittelbar (Northdata-Premium-Feld, gesperrt). Firma nennt 7 Standorte und 3 Geschäftsführer/Prokuristen — deutet auf Mittelstandsgröße, grob geschätzt 50-249, aber nicht belastbar.
- **Umsatzgrößenklasse:** nicht öffentlich ermittelbar (Premium-Feld).
- **Gründungsjahr:** Ersteintragung 20.12.2004 als „Universal-Klimatechnik GmbH" (spätere Umfirmierung zu Melzer Kälte Klima Lüftung GmbH; Sitzverlegung von Frankenthal/Ludwigshafen nach Bornich laut Gesellschafterbeschluss vom 3.12.2018).
- **Rechtsform:** GmbH, Stammkapital 102.300 EUR.
- **Website:** melzer.net
- **Ort:** Bornich, Rhein-Lahn-Kreis, Rheinland-Pfalz (PLZ 56348).
- **Handelsregister:** HRB 26544, Amtsgericht Koblenz.
- **Konfidenz Firmenmatch:** 0,95 — Name, PLZ, Straße und Ort stimmen exakt überein, mehrere unabhängige Quellen (Northdata, Gelbe Seiten, Creditreform, Impressum) bestätigen dieselbe Adresse und HRB-Nummer.
- **Adresse „Am Sportplatz 2" bestätigt:** Ja, durch Northdata und Firmen-Impressum übereinstimmend bestätigt.
- **Primäre Quelle:** northdata.com, Eintrag „Melzer Kälte Klima Lüftung GmbH, Bornich / Amtsgericht Koblenz HRB 26544" (northdata.com/Melzer Kälte Klima Lüftung GmbH,Bornich/Amtsgericht Koblenz HRB 26544).
- **Beleg:** Geschäftsführer Axel und Martin Melzer, Kapital 102.300 EUR, Gegenstand Kälte-/Klimaanlagen-Verkauf und -Service plus Elektroinstallation; Sitzverlegung 2018 von Frankenthal nach Bornich, ursprünglicher Registereintrag 2004 unter altem Namen Universal-Klimatechnik GmbH.

Quellen: [northdata.com](https://www.northdata.com/Melzer%20K%C3%A4lte%20Klima%20L%C3%BCftung%20GmbH,%20Bornich/Amtsgericht%20Koblenz%20HRB%2026544) · [melzer.net/impressum](https://www.melzer.net/impressum/) · [gelbeseiten.de](https://www.gelbeseiten.de/gsbiz/2b4369b1-242b-4f6e-8c1d-033c3ac9b3b3) · [firmeneintrag.creditreform.de](https://firmeneintrag.creditreform.de/56348/6070070949/MELZER_KAELTE_KLIMA_LUEFTUNG_GMBH)