bulk_update_components

WHAT IT DOES

What bulk_update_components does on KiCAD Schematic Manipulation MCP Server

AI agents use bulk_update_components to create or update resources in KiCAD Schematic Manipulation MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your KiCAD Schematic Manipulation MCP Server environment.

WHY IT NEEDS A POLICY

Why bulk_update_components needs a policy

This tool modifies KiCAD schematic component properties in bulk. While the scope is large (multiple components), the operation is reversible—users can undo changes or update again with different values. This places it in Write rather than Destructive. It does not execute arbitrary code or trigger external side effects, so Execute does not apply.

From the tool's definition Tool name 'bulk_update_components' and description 'Update multiple components at once' indicate reversible modification of schematic data. The verb 'update' denotes Write operations (create/modify data reversibly).

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

bulk_update_components Rate-limited

bulk_update_components 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "bulk_update_components": {
      "limits": [
        {
          "counter": "bulk_update_components_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches KiCAD Schematic Manipulation MCP Server, so you can run agents against it safely.

FAQ

Questions about bulk_update_components

What does the bulk_update_components tool do? +

Update multiple components at once. It is categorised as a Write tool in the KiCAD Schematic Manipulation MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on bulk_update_components? +

Register the KiCAD Schematic Manipulation MCP Server MCP server in PolicyLayer and add a rule for bulk_update_components: 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 Schematic Manipulation MCP Server. Nothing to install.

What risk level is bulk_update_components? +

bulk_update_components is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit bulk_update_components? +

Yes. Add a rate_limit block to the bulk_update_components 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.

How do I block bulk_update_components completely? +

Set action: deny in the PolicyLayer policy for bulk_update_components. 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.

What MCP server provides bulk_update_components? +

bulk_update_components is provided by the KiCAD Schematic Manipulation MCP Server MCP server (richard-luc/kicad-schematic-manipulation). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.