# list_footprint_libraries

List available .pretty footprint libraries and their contents (first 20 footprints per library).

Agent View of the PolicyLayer registry record for `list_footprint_libraries`. HTML page: https://policylayer.com/tools/mixelpixx-kicad-mcp-server/list-footprint-libraries

## Facts

- Tool: `list_footprint_libraries`
- Server: KiCAD-MCP-Server (`mixelpixx/kicad-mcp-server`) — https://policylayer.com/tools/mixelpixx-kicad-mcp-server.md
- Homepage: https://github.com/mixelpixx/KiCAD-MCP-Server
- 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_footprint_libraries",
    "arguments": {}
  }
}
```

## Why list_footprint_libraries is rated Low

This tool performs a read-only operation to enumerate and display footprint libraries and their contents. There are no side effects, no data modification, and no irreversible actions. It is purely informational retrieval, consistent with the Read category definition.

From the tool's own definition: "The tool description explicitly states it 'List[s] available .pretty footprint libraries and their contents' — a query operation that retrieves information without modifying or deleting data."

## Use case

AI agents call list_footprint_libraries to retrieve information from KiCAD-MCP-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 KiCAD-MCP-Server:

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

## Other tools on KiCAD-MCP-Server (230)

- `clear_board_outline` — Destructive — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/clear-board-outline.md
- `delete_component` — Destructive — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/delete-component.md
- `delete_graphic` — Destructive — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/delete-graphic.md
- `delete_schematic_component` — Destructive — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/delete-schematic-component.md
- `delete_schematic_net_label` — Destructive — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/delete-schematic-net-label.md
- `delete_schematic_wire` — Destructive — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/delete-schematic-wire.md
- `delete_symbol` — Destructive — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/delete-symbol.md
- `delete_trace` — Destructive — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/delete-trace.md
- `discard_or_reload` — Destructive — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/discard-or-reload.md
- `remove_hierarchical_sheet` — Destructive — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/remove-hierarchical-sheet.md
- `remove_library_table_entry` — Destructive — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/remove-library-table-entry.md
- `remove_schematic_component_property` — Destructive — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/remove-schematic-component-property.md
- `autoroute` — Execute — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/autoroute.md
- `export_3d_cli` — Execute — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/export-3d-cli.md
- `export_drill` — Execute — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/export-drill.md
- `launch_kicad_ui` — Execute — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/launch-kicad-ui.md
- `refill_zones` — Execute — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/refill-zones.md
- `run_drc` — Execute — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/run-drc.md
- `run_erc` — Execute — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/run-erc.md
- `batch_list_symbol_pins` — Read — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/batch-list-symbol-pins.md
- `check_clearance` — Read — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/check-clearance.md
- `check_courtyard_overlaps` — Read — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/check-courtyard-overlaps.md
- `check_freerouting` — Read — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/check-freerouting.md
- `check_kicad_ui` — Read — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/check-kicad-ui.md
- `check_placement_clearance` — Read — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/check-placement-clearance.md
- `download_registry_part` — Read — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/download-registry-part.md
- `estimate_airwire_lengths` — Read — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/estimate-airwire-lengths.md
- `export_bom` — Read — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/export-bom.md
- `export_ipc2581` — Read — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/export-ipc2581.md
- `export_ipcd356` — Read — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/export-ipcd356.md
- …and 200 more: https://policylayer.com/tools/mixelpixx-kicad-mcp-server.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=mixelpixx-kicad-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/mixelpixx-kicad-mcp-server