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get_norm

Return one structured norm by canonical norm path or simple norm shorthand.

Parameters

Name Type Required Description
code string yes Law abbreviation (e.g. bgb). Case-insensitive.
norm string yes Canonical norm path (e.g. par:242) or simple shorthand (e.g. 242).

Returns

A full norm record:

{
  code: string;
  norm: string;          // canonical norm path
  heading: string;       // norm heading / title
  text: string;          // full normalized text
  text_html: string;     // normalized text as HTML (structure preserved)
  provenance: {
    source_url: string;
    fetch_timestamp: string;
    content_hash: string;
    parser_path: string;
  };
  metadata: {
    norm_type: string;   // "paragraph", "article", "section", etc.
    number: string;      // e.g. "242"
    sub_parts: string[]; // e.g. ["(1)", "(2)"]
  };
}

Example

result = mcp_client.call_tool("get_norm", {"code": "bgb", "norm": "242"})

{
  "code": "bgb",
  "norm": "par:242",
  "heading": "Leistung nach Treu und Glauben",
  "text": "Der Schuldner ist verpflichtet, die Leistung so zu bewirken, wie Treu und Glauben mit Rücksicht auf die Verkehrssitte es erfordern.",
  "provenance": {
    "source_url": "https://www.gesetze-im-internet.de/bgb/__242.html",
    "fetch_timestamp": "2026-05-15T10:23:00Z",
    "content_hash": "sha256:def456...",
    "parser_path": "paragraph"
  },
  "metadata": {
    "norm_type": "paragraph",
    "number": "242"
  }
}

Norm path format

Input Resolved as
242 par:242 (paragraph 242)
par:242 par:242 (explicit)
art:2 art:2 (article 2)
art:246a/par:1 nested article/paragraph (URL-encode in HTTP)

Notes

  • Norm path resolution is tolerant of common shorthand forms.
  • Returns a structured error if the norm is not found.
  • For complex nested paths, prefer the canonical type:number form.

Source

mcp/server.py — @app.tool() definition for get_norm.