# delete_symbol Remove a symbol from a .kicad_sym library file. Agent View of the PolicyLayer registry record for `delete_symbol`. HTML page: https://policylayer.com/tools/mixelpixx-kicad-mcp-server/delete-symbol ## Facts - Tool: `delete_symbol` - 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: Destructive (Critical risk) - Registry record: grade F, identity unverified - Server rate-limited: no - Parameters: 0 - Recommended policy verdict: Hidden ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "delete_symbol", "arguments": {} } } ``` ## Why delete_symbol is rated Critical This tool performs irreversible deletion of symbol definitions from KiCAD library files. Once removed, the symbol is gone from the library and any designs referencing it may break. This is a destructive operation that modifies the persistent library state and cannot be easily reversed during normal operation, justifying the Destructive category and high severity due to potential data loss and project impact. From the tool's own definition: "'Remove a symbol from a .kicad_sym library file' — the tool irreversibly deletes data from a library, which cannot be undone without restoration from backup." ## Use case AI agents call delete_symbol to permanently remove resources in KiCAD-MCP-Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo. ## Recommended policy (PolicyLayer) Verdict: **Hidden**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches KiCAD-MCP-Server: ```json { "version": "1", "default": "deny", "hide": [ "delete_symbol" ] } ``` ## 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_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 - `export_odb` — Read — https://policylayer.com/tools/mixelpixx-kicad-mcp-server/export-odb.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