# list_contacts

A read tool on the MCP Google Contacts Server MCP server.

Agent View of the PolicyLayer registry record for `list_contacts`. HTML page: https://policylayer.com/tools/4tal-mcp-google-contacts/list-contacts

## Facts

- Tool: `list_contacts`
- Server: MCP Google Contacts Server (`4tal/mcp-google-contacts`) — https://policylayer.com/tools/4tal-mcp-google-contacts.md
- Homepage: https://github.com/4tal/mcp-google-contacts
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "list_contacts",
    "arguments": {}
  }
}
```

## Why list_contacts is rated Low

list_contacts retrieves contact information from Google Contacts without modifying, deleting, or executing external operations. This is a standard read operation with minimal risk. The blast radius of misuse is low—unauthorized access to contact lists could expose PII, but the tool itself cannot modify, delete, or cause financial harm.

From the tool's own definition: "Tool name 'list_contacts' with sibling tools including 'get_contact', 'search_contacts' (implied by server description), and 'list_contact_groups' indicates a retrieval operation."

## Use case

AI agents call list_contacts to retrieve information from MCP Google Contacts Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches MCP Google Contacts Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_contacts": {}
  }
}
```

## Other tools on MCP Google Contacts Server (18)

- `delete_contact` — Destructive — https://policylayer.com/tools/4tal-mcp-google-contacts/delete-contact.md
- `delete_contact_group` — Destructive — https://policylayer.com/tools/4tal-mcp-google-contacts/delete-contact-group.md
- `get_contact` — Read — https://policylayer.com/tools/4tal-mcp-google-contacts/get-contact.md
- `get_contact_group` — Read — https://policylayer.com/tools/4tal-mcp-google-contacts/get-contact-group.md
- `get_other_contacts` — Read — https://policylayer.com/tools/4tal-mcp-google-contacts/get-other-contacts.md
- `list_contact_groups` — Read — https://policylayer.com/tools/4tal-mcp-google-contacts/list-contact-groups.md
- `list_workspace_users` — Read — https://policylayer.com/tools/4tal-mcp-google-contacts/list-workspace-users.md
- `search_contacts` — Read — https://policylayer.com/tools/4tal-mcp-google-contacts/search-contacts.md
- `search_contacts_by_group` — Read — https://policylayer.com/tools/4tal-mcp-google-contacts/search-contacts-by-group.md
- `search_directory` — Read — https://policylayer.com/tools/4tal-mcp-google-contacts/search-directory.md
- `add_contacts_to_group` — Write — https://policylayer.com/tools/4tal-mcp-google-contacts/add-contacts-to-group.md
- `create_contact` — Write — https://policylayer.com/tools/4tal-mcp-google-contacts/create-contact.md
- `create_contact_advanced` — Write — https://policylayer.com/tools/4tal-mcp-google-contacts/create-contact-advanced.md
- `create_contact_group` — Write — https://policylayer.com/tools/4tal-mcp-google-contacts/create-contact-group.md
- `remove_contacts_from_group` — Write — https://policylayer.com/tools/4tal-mcp-google-contacts/remove-contacts-from-group.md
- `update_contact` — Write — https://policylayer.com/tools/4tal-mcp-google-contacts/update-contact.md
- `update_contact_advanced` — Write — https://policylayer.com/tools/4tal-mcp-google-contacts/update-contact-advanced.md
- `update_contact_group` — Write — https://policylayer.com/tools/4tal-mcp-google-contacts/update-contact-group.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=4tal-mcp-google-contacts · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/4tal-mcp-google-contacts