Switzerland — Zefix Lookup

Switzerland — Zefix Lookup is a skill for Claude Code from sophymarine/openregistry. It costs 0 tokens per session (938 once invoked), scanned A, original, Apache-2.0.

A lookup skill for Zefix, Switzerland’s official commercial register. It searches companies and returns registry details such as profiles, officers and shareholders using Swiss UID numbers.

In plain words
What is it for?
Use it to find Swiss companies, confirm their UID or status, inspect directors and shareholders, and retrieve available registry filings.
Why use it?
It avoids searching through third-party company databases when you need current information from the Swiss registry.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is Single-country variant of the cross-border [Cross-Border UBO Chain Walker](../ubo-cross-border-chain-walker/SKILL.md). Use this skill when the user is explicitl.

Part of the openregistry plugin — 35 skills, 6 commands, 1 MCP server shipped together

Good fit Use it to find Swiss companies, confirm their UID or status, inspect directors and shareholders, and retrieve available registry filings.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/sophymarine/openregistry
agentmods
npx agentmods add skills/sophymarine/openregistry/switzerland-zefix

Made for: Claude Code.

Or install openregistry, the plugin that ships this one along with the rest of its 35 skills, 6 commands, 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for Switzerland — Zefix Lookup

README.md
[![agentmods](https://agentmods.dev/badge/skills/sophymarine/openregistry/switzerland-zefix/github.svg)](https://agentmods.dev/skills/sophymarine/openregistry/switzerland-zefix)
Your own site
<a href="https://agentmods.dev/skills/sophymarine/openregistry/switzerland-zefix"><img src="https://agentmods.dev/badge/skills/sophymarine/openregistry/switzerland-zefix/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for Switzerland — Zefix Lookup

Your own site · 80×15
<a href="https://agentmods.dev/skills/sophymarine/openregistry/switzerland-zefix"><img src="https://agentmods.dev/badge/skills/sophymarine/openregistry/switzerland-zefix.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 938 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00000 $0.00938
Opus 5 $0.00000 $0.00469
Sonnet 5 $0.00000 $0.00188
Haiku 4.5 $0.00000 $0.00094

Measured 12d ago against content hash ed2478438eb1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

Switzerland — Zefix Lookup scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/per-country/switzerland-zefix/SKILL.md · 73 lines

How it starts

The opening of the file, as written. The whole thing — 73 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Switzerland — Zefix Lookup

Live, direct-to-government access to Zefix — Zentraler Firmenindex / Federal Registry of Commerce (Bundesamt für Justiz).

Single-country variant of the cross-border Cross-Border UBO Chain Walker. Use this skill when the user is explicitly focused on Switzerland.

What you get

  • Direct query to Zefix. Every tool call hits Zefix — Zentraler Firmenindex / Federal Registry of Commerce (Bundesamt für Justiz) at the moment you ask. No nightly scrape, no aggregator middle layer.
  • Unmodified responses. Field names, status codes, and (where available) raw filing bytes are returned exactly as the registry's own system emits them.
  • Native ID format support. Swiss UID CHE- prefix (e.g. CHE-105.916.057 Nestlé SA).
  • Sample entity: Nestlé SA.

Available tools (jurisdiction = CH)

search_companies, get_company_profile, get_officers, get_shareholders

For every tool, pass jurisdiction: "CH" (case-insensitive).

Example prompts

Find Nestlé SA on Zefix and pull the Verwaltungsrat (board)
Confirm Roche Holding AG's UID and canton
List shareholders of UBS AG (CHE-101.329.561)

Workflow

Step 1 — Resolve the entity

search_companies({ jurisdiction: "CH", query: "<name or ID>" })
get_company_profile({ jurisdiction: "CH", company_id: "<id>" })

Step 2 — Pull the relevant register slice

Pick from the available tools list above. For UBO walks across borders, return to the Cross-Border UBO Chain Walker.

Quirks specific to Switzerland

  • Zefix federates 26 cantonal Handelsregister offices — the canton appears in every record (e.g. Vaud, Genève, Zürich).
  • Switzerland is not subject to CJEU C-37/20 (non-EU). UBO data is not in a unified federal register, but officer (Verwaltungsrat) and shareholder data is.
  • Languages: records appear in DE/FR/IT depending on canton. name may differ across the three.
  • UID (CHE-XXX.XXX.XXX) is the modern federal identifier; older HR numbers (per canton) are still in some legacy data.

Read the full file on GitHub · 73 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 73 lines · 0 tokens per session scan A ed2478438eb1

Subscribe to this mod's changes

Switzerland — Zefix Lookup is a skill published in the GitHub repository sophymarine/openregistry (18 stars, last pushed 5d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 938 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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