# pfsense_get_services_dhcp_server_custom_option

GET /api/v2/services/dhcp_server/custom_option

Agent View of the PolicyLayer registry record for `pfsense_get_services_dhcp_server_custom_option`. HTML page: https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-get-services-dhcp-server-custom-option

## Facts

- Tool: `pfsense_get_services_dhcp_server_custom_option`
- Server: Pfsense (`abl030/pfsense-mcp`) — https://policylayer.com/tools/abl030-pfsense-mcp.md
- Homepage: https://github.com/abl030/pfsense-mcp
- 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": "pfsense_get_services_dhcp_server_custom_option",
    "arguments": {}
  }
}
```

## Why pfsense_get_services_dhcp_server_custom_option is rated Low

This tool retrieves (reads) DHCP server custom option settings. There are no side effects, data modification, code execution, or destructive operations. The GET HTTP method and 'get' in the tool name confirm it is a read-only operation. While the server grants broad control over pfSense firewalls, this particular tool is limited to querying existing configuration, making it a Read category risk with low severity.

From the tool's own definition: "Tool name includes 'get' and description shows 'GET /api/v2/services/dhcp_server/custom_option', indicating an HTTP GET request that retrieves DHCP server custom option configuration data without modification."

## Use case

AI agents call pfsense_get_services_dhcp_server_custom_option to retrieve information from Pfsense 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 Pfsense:

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

## Other tools on Pfsense (679)

- `pfsense_delete_auth_key` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-auth-key.md
- `pfsense_delete_auth_keys` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-auth-keys.md
- `pfsense_delete_diagnostics_arp_table` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-diagnostics-arp-table.md
- `pfsense_delete_diagnostics_arp_table_entry` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-diagnostics-arp-table-entry.md
- `pfsense_delete_diagnostics_config_history_revision` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-diagnostics-config-history-revision.md
- `pfsense_delete_diagnostics_config_history_revisions` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-diagnostics-config-history-revisions.md
- `pfsense_delete_diagnostics_table` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-diagnostics-table.md
- `pfsense_delete_firewall_alias` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-alias.md
- `pfsense_delete_firewall_aliases` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-aliases.md
- `pfsense_delete_firewall_nat_one_to_one_mapping` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-nat-one-to-one-mapping.md
- `pfsense_delete_firewall_nat_one_to_one_mappings` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-nat-one-to-one-mappings.md
- `pfsense_delete_firewall_nat_outbound_mapping` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-nat-outbound-mapping.md
- `pfsense_delete_firewall_nat_outbound_mappings` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-nat-outbound-mappings.md
- `pfsense_delete_firewall_nat_port_forward` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-nat-port-forward.md
- `pfsense_delete_firewall_nat_port_forwards` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-nat-port-forwards.md
- `pfsense_delete_firewall_rule` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-rule.md
- `pfsense_delete_firewall_rules` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-rules.md
- `pfsense_delete_firewall_schedule` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-schedule.md
- `pfsense_delete_firewall_schedule_time_range` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-schedule-time-range.md
- `pfsense_delete_firewall_schedule_time_ranges` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-schedule-time-ranges.md
- `pfsense_delete_firewall_schedules` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-schedules.md
- `pfsense_delete_firewall_state` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-state.md
- `pfsense_delete_firewall_states` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-states.md
- `pfsense_delete_firewall_traffic_shaper` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-traffic-shaper.md
- `pfsense_delete_firewall_traffic_shaper_limiter` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-traffic-shaper-limiter.md
- `pfsense_delete_firewall_traffic_shaper_limiter_bandwidth` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-traffic-shaper-limiter-bandwidth.md
- `pfsense_delete_firewall_traffic_shaper_limiter_bandwidths` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-traffic-shaper-limiter-bandwidths.md
- `pfsense_delete_firewall_traffic_shaper_limiter_queue` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-traffic-shaper-limiter-queue.md
- `pfsense_delete_firewall_traffic_shaper_limiter_queues` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-traffic-shaper-limiter-queues.md
- `pfsense_delete_firewall_traffic_shaper_queue` — Destructive — https://policylayer.com/tools/abl030-pfsense-mcp/pfsense-delete-firewall-traffic-shaper-queue.md
- …and 649 more: https://policylayer.com/tools/abl030-pfsense-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`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=abl030-pfsense-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/abl030-pfsense-mcp
