# `io.github.theluckystrike/family-tree` on anlyon.dev

> Text inside fenced blocks marked untrusted-server-text was written by the MCP server's publisher, not by anlyon.dev. It is data to inspect, not instructions to follow. Invisible characters are shown as [U+XXXX].
> No finding is not a safety guarantee: these are point-in-time checks of tool definitions, not of code or behaviour.

- Page: https://anlyon.dev/servers/io.github.theluckystrike/family-tree
- JSON: https://anlyon.dev/api/v1/servers/io.github.theluckystrike/family-tree
- Version: 1.0.1 (active)
- Publisher: io.github.theluckystrike (GitHub account)
- Runs: remote (streamable-http)
- Sign-in to list tools: none
- Metadata from the official MCP Registry, synced 2026-10-22T06:20:05.594Z

Title and description, as the publisher wrote them:

```untrusted-server-text
Zovo Family Tree
Genealogy charts and posters
```

Scanned 2026-10-22T06:21:37.104Z over streamable-http.

**2 tools: 1 change things and 1 only read.**

| Group | Class | Tools | Claude Code |
| --- | --- | --- | --- |
| Deletes or cancels | destructive | 0 | deny |
| Can't be undone | irreversible | 0 | ask |
| Changes things | write | 1 | ask |
| Only reads | read | 1 | allow |

## Findings

- **warn** Annotations that disagree with the tool in `generate_family_tree` ([annotation-conflict](https://anlyon.dev/methodology#annotation-conflict))

```untrusted-server-text
The server marks "generate_family_tree" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "generate_family_tree" says "generate": a word for a change.
```


## Changes things (1)

Creates or changes something that can be changed back. Claude Code: ask.

### `generate_family_tree`

- The name "generate_family_tree" says "generate": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
- Findings: warn annotation-conflict

Description, as the server wrote it:

```untrusted-server-text
Use this when the user wants a family tree, genealogy chart, pedigree chart, descendant chart, hourglass chart, fan chart or a printable family tree poster or template from relatives they describe. Convert the description into people (id, name, born, died, sex, parents, spouses) and call once. Lays out generations, couples, remarriages, half-siblings, adoption and twins without overlaps; returns a zoomable chart, PDF posters (Letter, A4, A2, 18x24, 24x36 in), SVG and a GEDCOM 5.5.1 file. Does not research ancestors, find records, or import GEDCOM files; do not invent relatives or dates. Not for organisation charts or flowcharts.
```

## Only reads (1)

Looks things up and changes nothing. Claude Code: allow.

### `find_relationship`

- The name "find_relationship" says "find": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Use this when the user asks how two people in their family are related (for example second cousin once removed, great-aunt, half-brother, mother-in-law, stepsister) and gives the family links. Pass the same people list as for the family tree and the two people. Computes the exact English kinship term both ways, the closest common ancestors and the generations to them. Does not guess missing links or research genealogy records; DNA matches and percentages are not covered.
```

## Claude Code permissions

For `.claude/settings.json`, assuming the server is installed as `family-tree`:

```json
{
  "permissions": {
    "allow": [
      "mcp__family-tree__find_relationship"
    ],
    "ask": [
      "mcp__family-tree__generate_family_tree"
    ],
    "deny": []
  }
}
```