# `uk.co.promptfiling/deadlines` 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/uk.co.promptfiling/deadlines
- JSON: https://anlyon.dev/api/v1/servers/uk.co.promptfiling/deadlines
- Version: 1.11.03 (active)
- Publisher: uk.co.promptfiling (domain proven to the MCP Registry)
- Runs: remote (streamable-http)
- Sign-in to list tools: none
- Metadata from the official MCP Registry, synced 2026-10-21T18:55:32.533Z

Title and description, as the publisher wrote them:

```untrusted-server-text
PromptFiling — UK company deadlines
Free Companies House deadline checks for UK companies: due dates, penalties, dormancy signals.
```

Scanned 2026-10-21T19:21:32.371Z over streamable-http.

**2 tools: 2 change things.**

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

## Findings

No check matched anything in these tool definitions.


## Changes things (2)

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

### `check_company_deadlines`

- 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
Look up a UK limited company by company number (preferred — e.g. 01234567 or SC123456) or by name, and get its statutory Companies House deadlines: when annual accounts and the confirmation statement are due, days remaining, the automatic late-filing penalty for accounts, and dormancy signals from the public register. Free, no account; data from the official Companies House register.
```

### `uk_late_filing_penalties`

- 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
The current Companies House late-filing penalty bands for annual accounts — private companies and public companies (plc) — the doubling rule for two late years running, and what missing a confirmation statement risks. Static reference — no lookup performed.
```

## Claude Code permissions

For `.claude/settings.json`, assuming the server is installed as `deadlines`:

```json
{
  "permissions": {
    "allow": [],
    "ask": [
      "mcp__deadlines__check_company_deadlines",
      "mcp__deadlines__uk_late_filing_penalties"
    ],
    "deny": []
  }
}
```