place_component
Place a component on the PCB
This record as markdown: /tools/mixelpixx-kicad-mcp-server/place-component.md
What place_component does on KiCAD-MCP-Server
AI agents use place_component to create or update resources in KiCAD-MCP-Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your KiCAD-MCP-Server environment.
Why place_component is rated Medium
Placing a component modifies the PCB design by adding or repositioning elements, which is a Write operation. It is reversible (components can be repositioned or removed), distinguishing it from Destructive actions. The blast radius is medium because incorrect placement could corrupt a design workflow, but the operation itself is not irreversible, not financial, and does not execute arbitrary code.
From the tool's definition Tool name 'place_component' and description 'Place a component on the PCB' indicate a create/modify operation that adds or positions a component on a printed circuit board design. This is reversible (components can be moved or deleted).
Attacks that exploit this kind of access
The rule that runs place_component 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 place_component, this is the rule to start with:
place_component stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect KiCAD-MCP-Server, apply this rule, and every place_component call is checked against it from then on.
Questions about place_component
Place a component on the PCB. It is categorised as a Write tool in the KiCAD-MCP-Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the KiCAD-MCP-Server MCP server in PolicyLayer and add a rule for place_component: 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.
place_component is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the place_component 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 place_component. 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.
place_component 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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