swiss-cultural-heritage-mcp: Instructions file for Claude Code

CLAUDE.md

swiss-cultural-heritage-mcp CLAUDE.md is an instructions file for Claude Code from malkreide/swiss-cultural-heritage-mcp. It costs 4,940 tokens per session, scanned A, a copy of swisstopo-mcp CLAUDE.md, MIT.

A set of project instructions for Claude Code, an AI coding assistant, in the Swiss cultural heritage MCP project. It covers repository conventions, preparation, testing, and diagnosing failures.

In plain words
What is it for?
It guides repository updates, branch detection, version-pinned checks, tests, and troubleshooting when work in the project fails.
Why use it?
It helps the assistant avoid working from an outdated copy of the code or assuming the wrong default branch, which can create misleading test and CI failures.

Instructions file for Claude Code

Written for Claude Code: SessionStart hook event. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions Codex.

This is malkreide/swiss-cultural-heritage-mcp's own configuration. It tells Claude Code how to work on swiss-cultural-heritage-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything swiss-cultural-heritage-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to malkreide/swiss-cultural-heritage-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/malkreide/swiss-cultural-heritage-mcp/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/malkreide/swiss-cultural-heritage-mcp

Made for: Claude Code.

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README.md
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Per session 4,940 This file is loaded in full into every session.
When invoked 4,940 The same file — it is already loaded in full.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin 81% copy Near-identical to another mod 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 $0.04940 $0.04940
Opus 5.5 $0.01976 $0.01976
Sonnet 5.5 $0.00988 $0.00988
Haiku 4.5 $0.00494 $0.00494

Measured 2d ago against content hash 08805e58d25a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

swiss-cultural-heritage-mcp CLAUDE.md scanned grade A with 1 finding 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 2d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

Token aus der Umgebung in einen curl-Header zu setzen, blockiert der
Origin

This is a copy

81% identical to swisstopo-mcp CLAUDE.md — 131 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

CLAUDE.md · 364 lines

How it starts

The opening of the file, as written. The whole thing — 364 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

Teil 1 — Konventionen (portfolio-weit)

Vor der Arbeit

Klon-Aktualität prüfen — Standard-Branch ermitteln, nicht main annehmen:

B=$(git ls-remote --symref origin HEAD | sed -n 's|^ref: refs/heads/\([^[:space:]]*\).*|\1|p')
git fetch origin "${B:?Standard-Branch nicht ermittelbar}" &&
  git rev-list --count HEAD..FETCH_HEAD

Drei Server im Portfolio heissen ihren Standard-Branch master (openlex-mcp, swiss-courts-mcp, swisstopo-mcp); dort scheitert ein fest verdrahtetes origin/main mit «couldn't find remote ref main». Wer das für ein Netzproblem hält, arbeitet weiter auf genau dem veralteten Klon, vor dem dieser Absatz warnt. Den :?-Schutz nicht weglassen: Bei leerem B fetcht git still den Remote-HEAD und endet mit 0.

Ein veralteter Klon erzeugt eine rote CI, deren Ursache nicht im Diff steht. Am 3.8.2026 zweimal passiert — beide Male fehlten genau die Commits, die das Gate einführten, an dem der Branch scheiterte. In diesem Repo läuft dieser Handgriff seit dem SessionStart-Hook .claude/hooks/session-start.sh automatisch: er meldet beim Sessionstart den Rückstand auf origin/<Standard-Branch> und schweigt bei 0. Blockieren kann er nicht — jeder Störfall endet mit Exit 0, jeder Netzaufruf unter Zeitlimit. Er ersetzt den Handgriff oben nicht in anderen Repos des Portfolios. Details: .claude/hooks/README.md.

Gates lokal fahren, mit der GEPINNTEN ruff-Version aus der CI. Eine andere Version meldet Abweichungen, die niemand verursacht hat.

Tests

Gegenprobe ist Pflicht. Ein Test, der grün bleibt, wenn man die Implementierung entfernt, prüft nichts. Jede neue Zusicherung einzeln neutralisieren und zeigen, dass genau die zugehörigen Tests fallen. Zwei Fallen, die beide grün blieben:

  • Eine Fake-Uhr, die nur beim Schlafen vorrückt, kann eine Zusicherung über echte Zeit nicht widerlegen.
  • monkeypatch.setattr(modul.asyncio, "sleep", ...) greift ins Modul asyncio selbst und entschärft die Mechanik im ganzen Prozess. Patche einen Modul-Alias (_sleep = asyncio.sleep), nicht das fremde Modul.

Read the full file on GitHub · 364 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. 2d ago Changed · +23 lines · +370 tokens per session 08805e58d25a
  2. 1mo ago Changed · +49 lines · +669 tokens per session 8ed82c5f615b
  3. 1mo ago Changed · -195 lines · -2,903 tokens per session cee22d5d3b95
  4. 1mo ago Changed · +68 lines · +1,093 tokens per session 187360440526
  5. 2mo ago First seen · 419 lines · 5,711 tokens per session scan A 5ca44d08e132

Subscribe to this mod's changes

swiss-cultural-heritage-mcp CLAUDE.md is an instructions file published in the GitHub repository malkreide/swiss-cultural-heritage-mcp (0 stars, last pushed 2d ago), licensed MIT. It adds 4,940 tokens to every session, about $0.0198 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). It is 81% identical to swisstopo-mcp CLAUDE.md, differing in 131 lines, and is treated as a copy.

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