# pcb_modify_polygon

A write tool on the Altium-MCP-Suite MCP server.

Agent View of the PolicyLayer registry record for `pcb_modify_polygon`. HTML page: https://policylayer.com/tools/altium-mcp-suite/pcb-modify-polygon

## Facts

- Tool: `pcb_modify_polygon`
- Server: Altium-MCP-Suite (`M-R-Abedini/Altium-MCP-Suite`) — https://policylayer.com/tools/altium-mcp-suite.md
- Homepage: https://github.com/M-R-Abedini/Altium-MCP-Suite
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

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

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

## Why pcb_modify_polygon is rated Medium

The tool modifies PCB design data (polygons are core geometric elements in PCB layouts). While the description is empty, the name strongly suggests reversible modification of polygon properties (position, vertices, layer, etc.) rather than deletion. This is categorized as Write rather than Execute because it operates on structured design objects rather than arbitrary code execution.

From the tool's own definition: "Tool name 'pcb_modify_polygon' indicates modification of PCB polygon geometry. The prefix 'pcb_' and verb 'modify' in the Altium Designer context directly target design elements that can be persisted to the PCB layout file."

## Use case

AI agents use pcb_modify_polygon to create or update resources in Altium-MCP-Suite, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Altium-MCP-Suite environment.

## Recommended policy (PolicyLayer)

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

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

## Other tools on Altium-MCP-Suite (816)

- `easyeda_clear_findings` — Destructive — https://policylayer.com/tools/altium-mcp-suite/easyeda-clear-findings.md
- `easyeda_clear_routing` — Destructive — https://policylayer.com/tools/altium-mcp-suite/easyeda-clear-routing.md
- `easyeda_clear_schematic_selection` — Destructive — https://policylayer.com/tools/altium-mcp-suite/easyeda-clear-schematic-selection.md
- `easyeda_clear_selection` — Destructive — https://policylayer.com/tools/altium-mcp-suite/easyeda-clear-selection.md
- `easyeda_close_document` — Destructive — https://policylayer.com/tools/altium-mcp-suite/easyeda-close-document.md
- `easyeda_delete_device` — Destructive — https://policylayer.com/tools/altium-mcp-suite/easyeda-delete-device.md
- `easyeda_delete_footprint` — Destructive — https://policylayer.com/tools/altium-mcp-suite/easyeda-delete-footprint.md
- `easyeda_delete_panel` — Destructive — https://policylayer.com/tools/altium-mcp-suite/easyeda-delete-panel.md
- `easyeda_delete_pcb` — Destructive — https://policylayer.com/tools/altium-mcp-suite/easyeda-delete-pcb.md
- `easyeda_delete_primitives` — Destructive — https://policylayer.com/tools/altium-mcp-suite/easyeda-delete-primitives.md
- `easyeda_delete_project` — Destructive — https://policylayer.com/tools/altium-mcp-suite/easyeda-delete-project.md
- `easyeda_delete_schematic` — Destructive — https://policylayer.com/tools/altium-mcp-suite/easyeda-delete-schematic.md
- `easyeda_delete_schematic_page` — Destructive — https://policylayer.com/tools/altium-mcp-suite/easyeda-delete-schematic-page.md
- `easyeda_delete_schematic_primitives` — Destructive — https://policylayer.com/tools/altium-mcp-suite/easyeda-delete-schematic-primitives.md
- `easyeda_delete_symbol` — Destructive — https://policylayer.com/tools/altium-mcp-suite/easyeda-delete-symbol.md
- `kicad_delete_component` — Destructive — https://policylayer.com/tools/altium-mcp-suite/kicad-delete-component.md
- `lib_clear_source_library` — Destructive — https://policylayer.com/tools/altium-mcp-suite/lib-clear-source-library.md
- `lib_delete_component` — Destructive — https://policylayer.com/tools/altium-mcp-suite/lib-delete-component.md
- `lib_delete_footprint` — Destructive — https://policylayer.com/tools/altium-mcp-suite/lib-delete-footprint.md
- `lib_delete_footprint_primitives` — Destructive — https://policylayer.com/tools/altium-mcp-suite/lib-delete-footprint-primitives.md
- `lib_remove_model` — Destructive — https://policylayer.com/tools/altium-mcp-suite/lib-remove-model.md
- `lib_uninstall_library` — Destructive — https://policylayer.com/tools/altium-mcp-suite/lib-uninstall-library.md
- `obj_batch_delete` — Destructive — https://policylayer.com/tools/altium-mcp-suite/obj-batch-delete.md
- `obj_delete` — Destructive — https://policylayer.com/tools/altium-mcp-suite/obj-delete.md
- `pcb_clear_source_footprint_library` — Destructive — https://policylayer.com/tools/altium-mcp-suite/pcb-clear-source-footprint-library.md
- `pcb_delete_design_rule` — Destructive — https://policylayer.com/tools/altium-mcp-suite/pcb-delete-design-rule.md
- `pcb_delete_invalid_objects` — Destructive — https://policylayer.com/tools/altium-mcp-suite/pcb-delete-invalid-objects.md
- `pcb_delete_net` — Destructive — https://policylayer.com/tools/altium-mcp-suite/pcb-delete-net.md
- `pcb_delete_object` — Destructive — https://policylayer.com/tools/altium-mcp-suite/pcb-delete-object.md
- `pcb_remove_layer` — Destructive — https://policylayer.com/tools/altium-mcp-suite/pcb-remove-layer.md
- …and 786 more: https://policylayer.com/tools/altium-mcp-suite.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=altium-mcp-suite · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/altium-mcp-suite