remove_schematic_component_property
Remove a single custom property from a placed schematic symbol. Built-in fields (Reference, Value, Footprint, Datasheet) cannot be removed — KiCad requires them on every symbol. To clear a built-in field, use edit_schematic_component and set its value to an empty string.
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What remove_schematic_component_property does on KiCAD-MCP-Server
AI agents call remove_schematic_component_property 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.
Why remove_schematic_component_property is rated Critical
This tool irreversibly removes a custom property from a schematic symbol. Unlike editing (which is reversible by editing back), removal of a property destroys that data. Without an explicit undo mechanism in the MCP context, this constitutes a destructive operation. Severity is medium as it affects a single property on a single component rather than entire files or boards.
From the tool's definition Remove a single custom property from a placed schematic symbol
Attacks that exploit this kind of access
The rule that runs remove_schematic_component_property safely
PolicyLayer is an MCP gateway: it sits between your AI agents and KiCAD-MCP-Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For remove_schematic_component_property, this is the rule to start with:
remove_schematic_component_property is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect KiCAD-MCP-Server, apply this rule, and every remove_schematic_component_property call is checked against it from then on.
Questions about remove_schematic_component_property
Remove a single custom property from a placed schematic symbol. Built-in fields (Reference, Value, Footprint, Datasheet) cannot be removed — KiCad requires them on every symbol. To clear a built-in field, use edit_schematic_component and set its value to an empty string. It is categorised as a Destructive tool in the KiCAD-MCP-Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the KiCAD-MCP-Server MCP server in PolicyLayer and add a rule for remove_schematic_component_property: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches KiCAD-MCP-Server. Nothing to install.
remove_schematic_component_property is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the remove_schematic_component_property rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for remove_schematic_component_property. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
remove_schematic_component_property is provided by the KiCAD-MCP-Server MCP server (mixelpixx/kicad-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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