lib_create_symbol

A write tool on the Eda Agent MCP server.

SERVEREda Agent SOURCEsalitronic/eda-agent

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/eda-agent/lib-create-symbol.md

WHAT IT DOES

What lib_create_symbol does on Eda Agent

AI agents use lib_create_symbol to create or update resources in Eda Agent, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Eda Agent environment.

RISK

Why lib_create_symbol is rated Medium

This tool creates new symbols in Altium Designer libraries, which is a reversible modification of design data. While it writes data, the change is not destructive (symbols can be edited or deleted) and does not execute arbitrary code or affect financial systems.

From the tool's definition Tool name 'lib_create_symbol' indicates creation of a library symbol in Altium Designer. The 'create' verb and library context suggest this tool creates or adds new design artifacts to a library.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs lib_create_symbol safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Eda Agent, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For lib_create_symbol, this is the rule to start with:

lib_create_symbol Rate-limited

lib_create_symbol 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": {
    "lib_create_symbol": {
      "limits": [
        {
          "counter": "lib_create_symbol_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Eda Agent, apply this rule, and every lib_create_symbol call is checked against it from then on.

FAQ

Questions about lib_create_symbol

What does the lib_create_symbol tool do? +

lib_create_symbol is a write tool on the Eda Agent MCP server. It is categorised as a Write tool in the Eda Agent MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on lib_create_symbol? +

Register the Eda Agent MCP server in PolicyLayer and add a rule for lib_create_symbol: 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 Eda Agent. Nothing to install.

What risk level is lib_create_symbol? +

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

Can I rate-limit lib_create_symbol? +

Yes. Add a rate_limit block to the lib_create_symbol 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 lib_create_symbol completely? +

Set action: deny in the PolicyLayer policy for lib_create_symbol. 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 lib_create_symbol? +

lib_create_symbol is provided by the Eda Agent MCP server (salitronic/eda-agent). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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