# DRGSystem — German medical coding catalogs (de.drgsystem/medical-catalogs): tool descriptions scored

- tools/list taken: 2026-11-02 (UTC)
- From: [Official MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/de.drgsystem%2Fmedical-catalogs/versions/latest)
- Connected to: https://www.drgsystem.de/mcp
- Homepage: https://www.drgsystem.de/mcp-service
- Scoring rules: v2
- Tools: 44
- Average: 61.0 / 100 (Cloudy)
- Near-identical pairs: 2

This page shows how DRGSystem — German medical coding catalogs (de.drgsystem/medical-catalogs)'s tool descriptions scored, the issues found and the names of its tools and parameters. The descriptions are the server's own: read them where the copy came from.

Forecall asked the URL this server lists in the official MCP Registry for its tools/list once, on the date above, without calling any tool. The server may have changed since.

## Across the server

- Major: 44 tools. Above 40, models choose less accurately.
- Minor: The server's instructions are 5825 characters. Claude Code reads only the first 2,048 by default (Codex 0.154.0 reads them whole). Put what the server is for first.

## Tools

- `rules_get`: 52 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Required identifiers whose description does not say where the value comes from: id. Name the tool or the place that returns it, or models look it up first.
- `goae_lookup`: 55 / 100
  - Major: Says nothing about when to use it, or when not to.
- `goae_search`: 55 / 100
  - Major: Says nothing about when to use it, or when not to.
- `goae_travel`: 55 / 100
  - Major: Says nothing about when to use it, or when not to.
- `opsalpha_get`: 55 / 100
  - Major: Says nothing about when to use it, or when not to.
- `opsalpha_search`: 55 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `atc_search`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `dkr_search`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `kh_search`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `lg_ops_strukturmerkmale`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `pepp_search`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `basisfallwerte_search`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `dkr_psych_search`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `drg_search`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `et_search`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `goae_calculate`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: zeilen[].nr, zeilen[].count.
  - Minor: String arguments with no constraint or example: zeilen[].nr.
- `hybrid_drg_search`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `lg_search`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `orpha_search`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `rules_for_code`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
- `seg4kde_search`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `ze_search`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `zp_search`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `atc_get`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `basisfallwerte_get`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `dkr_get`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `dkr_psych_get`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `drg_get`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `et_get`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `hybrid_drg_get`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `icd10alpha_get`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
- `kh_get`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `lg_get`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `ops_get`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `orpha_get`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `pepp_get`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `seg4kde_get`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `ze_get`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `zp_get`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `goae_check_combination`: 65 / 100
  - Major: Says nothing about when to use it, or when not to.
- `ops_search`: 65 / 100
  - Minor: The description mentions none of its 3 or more arguments.
- `icd10_get`: 67 / 100
  - Minor: No `required` list, so every argument is optional.
- `icd10alpha_search`: 80 / 100
  - Minor: The description mentions none of its 3 or more arguments.
- `icd10_search`: 82 / 100
  - Minor: The description mentions none of its 3 or more arguments.

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