openroad_floorplan

Initializes ASIC floorplan boundaries, core/die sizing, and I/O pin placement using OpenROAD, generating a floorplan DEF file.

SERVERMcp Openroad SOURCE@zesun33/mcp-openroad

Low RISK CLASS

Category Other

Parameters 82 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/zesun33-mcp-openroad/openroad-floorplan.md

WHAT IT DOES

What openroad_floorplan does on Mcp Openroad

AI agents call openroad_floorplan as a supporting operation in Mcp Openroad workflows.

Parameter	Type	Required	Description
`cwd`	string	—	Optional working directory.
`die_width`	number	—	Die width in microns (default: 60).
`die_height`	number	—	Die height in microns (default: 60).
`output_def`	string	—	Output floorplan DEF file path.
`timeout_ms`	number	—	Timeout in milliseconds.
`top_module`	string	Yes	Name of the top-level module.
`core_margin`	number	—	Margin between die and core in microns (default: 5).
`netlist_file`	string	Yes	Gate-level Verilog netlist file path.

Parameters from the server's own tool schema.

RISK

Why openroad_floorplan is rated Low

Without any rule in front of it, every call an agent makes to openroad_floorplan happens silently: no trail, no cap, no way to know it misbehaved until something breaks downstream.

Risk signalsAccepts file system path (cwd)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs openroad_floorplan safely

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

openroad_floorplan Rate-limited

openroad_floorplan gets a rate cap, and everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "openroad_floorplan": {
      "limits": [
        {
          "counter": "openroad_floorplan_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

SET A RULE FOR THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about openroad_floorplan

What does the openroad_floorplan tool do? +

Initializes ASIC floorplan boundaries, core/die sizing, and I/O pin placement using OpenROAD, generating a floorplan DEF file. It is categorised as a Other tool in the Mcp Openroad MCP Server, which means it performs auxiliary operations.

What parameters does openroad_floorplan accept? +

openroad_floorplan accepts 8 parameters: cwd, die_width, die_height, output_def, timeout_ms, top_module, core_margin, netlist_file. Required: top_module, netlist_file. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on openroad_floorplan? +

Register the Mcp Openroad MCP server in PolicyLayer and add a rule for openroad_floorplan: 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 Mcp Openroad. Nothing to install.

What risk level is openroad_floorplan? +

openroad_floorplan is a Other tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit openroad_floorplan? +

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

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

openroad_floorplan is provided by the Mcp Openroad MCP server (@zesun33/mcp-openroad). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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