# reach_updateAContactFieldV1

Rename a custom contact field and, for the choice types, replace its option set. Options carrying a uuid are kept and relabelled, options without one are created, and any existing option left out of the list is deleted along with the values contacts hold for it. The field type and slug cannot be changed.

Agent View of the PolicyLayer registry record for `reach_updateAContactFieldV1`. HTML page: https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/reach-updateacontactfieldv1

## Facts

- Tool: `reach_updateAContactFieldV1`
- Server: Hostinger Api (`hostinger-api-mcp`) — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp.md
- Install: `npx -y hostinger-api-mcp`
- Homepage: https://github.com/hostinger/api-mcp-server
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 4 (3 required)
- Recommended policy verdict: Rate-limited

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `label` | string | yes | label parameter |
| `options` | array | no | Replaces the option set when provided. Entries carrying a uuid are kept and relabelled, entries without one are created, and any existing option missing from th |
| `fieldUuid` | string | yes | Contact field uuid parameter |
| `profileUuid` | string | yes | Profile uuid parameter |

Parameters from the server's own tool schema.

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

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "reach_updateAContactFieldV1",
    "arguments": {
      "label": "<label>",
      "fieldUuid": "<fieldUuid>",
      "profileUuid": "<profileUuid>"
    }
  }
}
```

## Why reach_updateAContactFieldV1 is rated Medium

Modifies contact data and deletes option values irreversibly, affecting multiple records with high blast radius.

From the tool's own definition: "Rename custom contact field, replace option set, delete existing options and values."

## Use case

AI agents use reach_updateAContactFieldV1 to create or update resources in Hostinger Api, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Hostinger Api environment.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Hostinger Api:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "reach_updateAContactFieldV1": {
      "limits": [
        {
          "counter": "reach_updateacontactfieldv1_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Hostinger Api (381)

- `agency-hosting_clearWebsiteCacheV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/agency-hosting-clearwebsitecachev1.md
- `agency-hosting_deleteWebsiteCronJobV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/agency-hosting-deletewebsitecronjobv1.md
- `agency-hosting_deleteWebsiteDatabaseUserV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/agency-hosting-deletewebsitedatabaseuserv1.md
- `agency-hosting_deleteWebsiteDatabaseV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/agency-hosting-deletewebsitedatabasev1.md
- `agency-hosting_deleteWebsiteV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/agency-hosting-deletewebsitev1.md
- `agency-hosting_deployNodeStaticWebsite` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/agency-hosting-deploynodestaticwebsite.md
- `agency-hosting_deployPhpApplication` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/agency-hosting-deployphpapplication.md
- `billing_deletePaymentMethodV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/billing-deletepaymentmethodv1.md
- `DNS_deleteDNSRecordsV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/dns-deletednsrecordsv1.md
- `DNS_resetDNSRecordsV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/dns-resetdnsrecordsv1.md
- `domains_cancelPendingIRTPVerificationV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/domains-cancelpendingirtpverificationv1.md
- `domains_deleteDomainForwardingV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/domains-deletedomainforwardingv1.md
- `domains_deleteWHOISProfileV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/domains-deletewhoisprofilev1.md
- `ecommerce_cancelAnOrderV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/ecommerce-cancelanorderv1.md
- `ecommerce_deleteAProductV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/ecommerce-deleteaproductv1.md
- `ecommerce_deleteAProductVariantV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/ecommerce-deleteaproductvariantv1.md
- `ecommerce_deleteStoreV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/ecommerce-deletestorev1.md
- `hosting_clearNode_jsRuntimeLogsV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/hosting-clearnode-jsruntimelogsv1.md
- `hosting_clearWebsiteCacheV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/hosting-clearwebsitecachev1.md
- `hosting_deleteAccountCronJobV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/hosting-deleteaccountcronjobv1.md
- `hosting_deleteAccountDatabaseV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/hosting-deleteaccountdatabasev1.md
- `hosting_deleteDatabaseRemoteConnectionV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/hosting-deletedatabaseremoteconnectionv1.md
- `hosting_deleteWebsiteParkedDomainV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/hosting-deletewebsiteparkeddomainv1.md
- `hosting_deleteWebsiteRedirectV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/hosting-deletewebsiteredirectv1.md
- `hosting_deleteWebsiteSubdomainV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/hosting-deletewebsitesubdomainv1.md
- `hosting_deleteWebsiteV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/hosting-deletewebsitev1.md
- `hosting_deleteWordPressInstallationV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/hosting-deletewordpressinstallationv1.md
- `hosting_deployStaticSiteArchiveV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/hosting-deploystaticsitearchivev1.md
- `hosting_importWordPressWebsiteV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/hosting-importwordpresswebsitev1.md
- `hosting_startNode_jsBuildV1` — Destructive — https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp/hosting-startnode-jsbuildv1.md
- …and 351 more: https://policylayer.com/tools/io-github-hostinger-hostinger-api-mcp.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`

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