# Lex — Temporal Luxembourg and EU Law (io.github.SFHAJJI/lex): tool descriptions scored

- tools/list taken: 2026-11-02 (UTC)
- From: [Official MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/io.github.SFHAJJI%2Flex/versions/latest)
- Connected to: https://law.soufien.lu/mcp
- Repository: https://github.com/SFHAJJI/lex
- Scoring rules: v2
- Tools: 27
- Average: 28.5 / 100 (Rain)
- Near-identical pairs: 0

This page shows how Lex — Temporal Luxembourg and EU Law (io.github.SFHAJJI/lex)'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

- Minor: 27 tools. Above 25, models start to tell tools apart less well.

## Tools

- `in_force_on`: 20 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: date, identifier, language, limit, after_work_key.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `provenance`: 20 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: identifier, date, language.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `article_history`: 24 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: identifier, anchor, language.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `changes_in_period`: 24 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: date_from, date_to, identifier, language, limit.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `citation`: 24 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: identifier, date, language, anchor, limit, after.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `cited_by`: 24 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: identifier, limit, after.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `classification`: 24 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: identifier, language.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `coverage`: 24 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: language.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `diff`: 24 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: identifier, date_from, date_to, language, page.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `relations`: 24 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: identifier, date, language, direction, limit, after.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `as_observed`: 27 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: identifier, date, language, snapshot, at.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `browse`: 27 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: type, language, limit, after.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `dossier`: 27 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: identifier, language.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `resolve`: 27 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: identifier.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `search`: 27 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: query, language, date, identifier, mode, limit, after.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `status_on`: 27 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: identifier, date, language.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `timeline`: 27 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: identifier, language.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `verify`: 27 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: identifier, language.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `manifestation`: 29 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: identifier, language, format.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `answer_drift`: 32 / 100
  - Major: Arguments without a description: identifier, after, limit.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `as_of`: 32 / 100
  - Major: Arguments without a description: identifier, date, language.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `evidence_bundle`: 32 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: identifier, date, language, article, page, contents.
  - Minor: The meaning of the boolean argument contents is unclear.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `ask`: 34 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: Arguments without a description: question.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `events`: 37 / 100
  - Major: Arguments without a description: after, limit, event.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `concepts`: 42 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `knowable_on`: 42 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `transposition`: 42 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.

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