# `br.com.lensas/optical-intelligence` 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/br.com.lensas/optical-intelligence
- JSON: https://anlyon.dev/api/v1/servers/br.com.lensas/optical-intelligence
- Version: 0.1.0 (active)
- Publisher: br.com.lensas (domain proven to the MCP Registry)
- Runs: remote (streamable-http)
- Sign-in to list tools: none
- Metadata from the official MCP Registry, synced 2026-10-21T17:46:01.192Z

Title and description, as the publisher wrote them:

```untrusted-server-text
Optical education, prescription transposition, horizontal decentration and approximate prism. PT/EN.
```

Scanned 2026-10-21T18:44:05.536Z over streamable-http.

**5 tools: 3 change things and 2 only read.**

| Group | Class | Tools | Claude Code |
| --- | --- | --- | --- |
| Deletes or cancels | destructive | 0 | deny |
| Can't be undone | irreversible | 0 | ask |
| Changes things | write | 3 | ask |
| Only reads | read | 2 | allow |

## Findings

No check matched anything in these tool definitions.


## Changes things (3)

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

### `calculate_decentration`

- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

Description, as the server wrote it:

```untrusted-server-text
Symmetric boxing frame only: (A + bridge)/2 minus monocular PD, per eye, in mm. Positive nasal; negative temporal. No vertical or prescribed prism compensation.
```

### `calculate_prism`

- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

Description, as the server wrote it:

```untrusted-server-text
Educational Prentice approximation: absolute meridional power times displacement in cm. Returns magnitude only, no base direction or prescription recommendation.
```

### `transpose_prescription`

- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

Description, as the server wrote it:

```untrusted-server-text
Transpose sphere/cylinder notation without changing the prescription. Dioptres and degrees; axis 0–180. Does not diagnose or generate prescriptions.
```

## Only reads (2)

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

### `get_optical_topic`

- The name "get_optical_topic" says "get": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Read a public optical topic by stable ID with references, related topics and limitations.
```

### `search_optical_knowledge`

- The name "search_optical_knowledge" says "search": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Search public optical education in Portuguese or English. Returns source excerpts, not medical advice or customer records.
```

## Claude Code permissions

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

```json
{
  "permissions": {
    "allow": [
      "mcp__optical-intelligence__search_optical_knowledge",
      "mcp__optical-intelligence__get_optical_topic"
    ],
    "ask": [
      "mcp__optical-intelligence__transpose_prescription",
      "mcp__optical-intelligence__calculate_decentration",
      "mcp__optical-intelligence__calculate_prism"
    ],
    "deny": []
  }
}
```