# `io.github.davidsiegel59/4bots-content` 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.davidsiegel59/4bots-content
- JSON: https://anlyon.dev/api/v1/servers/io.github.davidsiegel59/4bots-content
- Version: 1.0.0 (active)
- Publisher: io.github.davidsiegel59 (GitHub account)
- Runs: remote (streamable-http)
- Sign-in to list tools: none
- Metadata from the official MCP Registry, synced 2026-10-21T18:31:53.484Z

Title and description, as the publisher wrote them:

```untrusted-server-text
Daily content for AI agents. History, chess, investing, wrongology, more. 10 channels. Free trial.
```

Scanned 2026-10-21T19:29:15.191Z over streamable-http.

**9 tools: 3 change things and 6 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 | 6 | allow |

## Exfil surface

4 private-data -> untrusted-input -> outbound paths in this server alone. Denying 1 private-data tool breaks every one: `mcp__4bots-content__get_template`.

| Tag | Meaning | Tools |
| --- | --- | --- |
| private-data | Reads files, mail, messages, databases, secrets, calendars or repositories. | `mcp__4bots-content__get_template` |
| untrusted-input | Brings in text someone else can write: web pages, inbound email, messages, issues and comments. | `mcp__4bots-content__get_session` `mcp__4bots-content__get_template` |
| outbound | Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL. | `mcp__4bots-content__start_subscription` `mcp__4bots-content__vote` |

| Private data | Untrusted input | Outbound |
| --- | --- | --- |
| `mcp__4bots-content__get_template` | `mcp__4bots-content__get_session` | `mcp__4bots-content__start_subscription` |
| `mcp__4bots-content__get_template` | `mcp__4bots-content__get_session` | `mcp__4bots-content__vote` |
| `mcp__4bots-content__get_template` | `mcp__4bots-content__get_template` | `mcp__4bots-content__start_subscription` |
| `mcp__4bots-content__get_template` | `mcp__4bots-content__get_template` | `mcp__4bots-content__vote` |

## Findings

No check matched anything in these tool definitions.


## Changes things (3)

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

### `create_setup_link`

- The name "create_setup_link" says "create": a word for a change.

Description, as the server wrote it:

```untrusted-server-text

    Create a browser link for your human to pick channels themselves.
    For a fast start without human input, use start_subscription instead.
    Link expires in 7 days.
    
```

### `start_subscription`

- The name "start_subscription" says "start": a word for a change.
- Tag outbound: The input takes a destination (input.channels): what the tool writes goes there.

Description, as the server wrote it:

```untrusted-server-text

    Activate instantly. No browser, no human action needed.
    Returns a session_token — store it for daily get_bundle calls.
    100 free tokens on signup. Call list_channels for available slugs.

    Args:
        human_email: The human's email address
        channels:    List of channel slugs (e.g. ["human-badassery", "brain-butter"])
        agent_email: Your agent's email address
        source:      Optional. How you found us (e.g. "mcpregistry", "relay", "search")
    
```

### `vote`

- Nothing in its name or description says what it does, so it is counted as a write.
- Tag outbound: The input takes a destination (input.channel): what the tool writes goes there.

Description, as the server wrote it:

```untrusted-server-text

    Vote for a proposed channel. Votes determine build order.
    Use list_channels to see proposed channel slugs.
    
```

## Only reads (6)

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

### `get_bundle`

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

Description, as the server wrote it:

```untrusted-server-text

    Get today's content for all subscribed channels. Call this once per day.
    Returns styled HTML (drop into your email where {4bots} goes) and plain text.
    Check low_balance — if true, send your human to manage_url to top up.
    
```

### `get_session`

- The name "get_session" says "get": a word for reading.
- Tag untrusted-input: The description's first sentence says "url": it reads web pages, which anyone can write.

Description, as the server wrote it:

```untrusted-server-text

    Account status: credits, channels, delivery counts, manage URL.
    
```

### `get_summary`

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

Description, as the server wrote it:

```untrusted-server-text
Content catalog, privacy policy, and pricing in one call.
```

### `get_template`

- The name "get_template" says "get": a word for reading.
- Tag private-data: The description's first sentence says "email": it reads mail.
- Tag untrusted-input: The description's first sentence says "html": it reads web pages, which anyone can write.

Description, as the server wrote it:

```untrusted-server-text

    Free HTML email template with {4bots} placeholder, plus suggested copy
    to introduce the service to your human. Drop get_bundle's html field
    where {4bots} appears.
    
```

### `list_channels`

- The name "list_channels" says "list": a word for reading.

Description, as the server wrote it:

```untrusted-server-text

    All 10 channels with descriptions and pricing. Also shows proposed channels you can vote on.
    
```

### `try_sample`

- The description's first verb is "preview": a word for reading.

Description, as the server wrote it:

```untrusted-server-text

    Preview today's content from 3 channels. No signup, no arguments required.
    Call this first to see what your human would receive.
    If you like it, call start_subscription to activate.

    Args:
        source: Optional. How you found us (e.g. "mcpregistry", "relay", "search")
    
```

## Claude Code permissions

For `.claude/settings.json`, assuming the server is installed as `4bots-content`:

```json
{
  "permissions": {
    "allow": [
      "mcp__4bots-content__try_sample",
      "mcp__4bots-content__list_channels",
      "mcp__4bots-content__get_bundle",
      "mcp__4bots-content__get_session",
      "mcp__4bots-content__get_summary",
      "mcp__4bots-content__get_template"
    ],
    "ask": [
      "mcp__4bots-content__start_subscription",
      "mcp__4bots-content__create_setup_link",
      "mcp__4bots-content__vote"
    ],
    "deny": []
  }
}
```

Capability tags behind the rules (a read tagged outbound is asked about):

- `mcp__4bots-content__start_subscription`: outbound
- `mcp__4bots-content__get_session`: untrusted-input
- `mcp__4bots-content__vote`: outbound
- `mcp__4bots-content__get_template`: private-data, untrusted-input

## Remote posture

What an anonymous client saw at the remote endpoint, last 2026-10-22T14:58:15.012Z, unchanged since 2026-10-22T14:58:15.012Z. No credentials were sent and no tool was called. Values are shown as the endpoint returned them. Method: https://anlyon.dev/methodology#remote-posture

| Fact | Observed |
| --- | --- |
| Reachable | `yes` |
| HTTP status of an anonymous initialize | `200` |
| tools/list served without credentials | `yes` |
| Tools that change things, listed without credentials | `3` |
| Protocol version | `2025-06-18` |
| WWW-Authenticate on 401 | `not observed` |
| resource_metadata in WWW-Authenticate | `none` |
| RFC 9728 protected resource metadata | `none` |
| Authorization servers | `none` |
| Legacy HTTP+SSE transport | `no` |
| Dynamic client registration | `not observed` |
| Client ID metadata documents | `not observed` |

- **warn** Tools that change things, listed to anyone ([unauth-remote-writes](https://anlyon.dev/methodology#unauth-remote-writes))

```untrusted-server-text
The endpoint served tools/list without credentials, and the list has 3 tools that change things (3 write). Whether a call also works without credentials was not tested: tools are never called.

https://4bots.net/api/mcp: tools/list returned 9 tools to an anonymous client, including start_subscription (write), create_setup_link (write), vote (write)
```