// SCAN REPORT

Virtuoso Schematic MCP

22 tools. 10 can modify or destroy data without limits.

10 write tools that can modify data. Rate limits recommended.

Last updated: 3 Jul 2026

10 can modify or destroy data

12 read-only

22 tools total

Community server · catalogue entry verified 03/07/2026

How to control Virtuoso Schematic MCP ↓

TOOL MAP

What Virtuoso Schematic MCP exposes to your agents

Read (12) Write / Execute (10) Destructive / Financial (0)

Running more than one server? Check your whole stack →

MOST DANGEROUS TOOLS

High Risk

The most dangerous Virtuoso Schematic MCP tools

Execute · High virtuoso_execute_skill This tool directly executes arbitrary code in a live Virtuoso environment, which can trigger external operations, modify design state, query databases, or execute shell commands depending on what SKILL expressions are pa Execute · Medium connect This tool establishes a connection to an external system (Virtuoso SkillBridge server), which is an active operation that triggers external connectivity. Execute · High check_and_save This tool executes two distinct operations: a schematic design rule/validation check (schCheck) and a database save (dbSave). Write · Medium virtuoso_add_pin This tool creates new pins in a Cadence Virtuoso schematic, which modifies the design structure reversibly.

10 of Virtuoso Schematic MCP's 22 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

POLICY

How to control Virtuoso Schematic MCP

PolicyLayer is an MCP gateway — it sits between your AI agents and Virtuoso Schematic MCP, and nothing reaches the server without passing your rules. These are the rules we recommend:

Rate limit write operations

{
  "virtuoso_add_pin": {
    "limits": [
      {
        "counter": "virtuoso_add_pin_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations

{
  "get_cellview_info": {
    "limits": [
      {
        "counter": "get_cellview_info_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register Virtuoso Schematic MCP — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON VIRTUOSO SCHEMATIC →

Instant setup, no code required.

FULL CATALOGUE

All 22 Virtuoso Schematic MCP tools

EXECUTE 3 tools

Execute check_and_save Run schCheck and dbSave on the schematic. Execute connect Connect to the running Virtuoso skillbridge server. Execute virtuoso_execute_skill Execute an arbitrary SKILL expression in the Virtuoso environment.

WRITE 7 tools

Write virtuoso_add_pin Add a pin (port/terminal) to a schematic for hierarchical connections. Write virtuoso_connect Connect (or reconnect) to a running Cadence Virtuoso session via SkillBridge. Write virtuoso_create_cellview Create a new empty cellview (schematic, layout, or symbol). Write virtuoso_create_wire Create a wire (net connection) in a schematic between specified points. Write virtuoso_open_cellview Open (or create) a cellview in Virtuoso. Write virtuoso_place_instance Place an instance of a component (e.g., transistor, resistor) in a schematic. Write virtuoso_set_instance_property Set a property on a component instance (e.g., width, length, resistance).

READ 12 tools

Read get_cellview_info Get basic information about a schematic cellview (lib, cell, view, modification time). Read get_instances Get a list of all instances in a schematic, including their library, cell, and name. Read get_nets Get a list of all nets in a schematic and their connected terminals/pins. Read inspect_instance Get detailed properties of a specific instance by name. Read virtuoso_check_save Run design checks and save a cellview. Read virtuoso_get_instance_properties Get all CDF properties of a specific instance. Read virtuoso_get_instances List all component instances in a cellview. Read virtuoso_get_nets List all nets (connections) in a cellview. Read virtuoso_list_cellviews List all views available for a given cell. Read virtuoso_list_libraries List all libraries available in the current Virtuoso session. Read virtuoso_query_library List cells in a library, optionally filtered by a pattern. Read virtuoso_status Check the current connection status to Virtuoso.

EXPLORE

Related servers

Other MCP servers with similar tools — same risk classification, starter policies for each.

FAQ

Questions about Virtuoso Schematic MCP

How do I prevent bulk modifications through Virtuoso Schematic MCP? +

The Virtuoso Schematic MCP server has 7 write tools including virtuoso_add_pin, virtuoso_connect, virtuoso_create_cellview. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach Virtuoso Schematic MCP.

How many tools does the Virtuoso Schematic MCP server expose? +

22 tools across 3 categories: Execute, Read, Write. 12 are read-only. 10 can modify, create, or delete data.

How do I enforce a policy on Virtuoso Schematic MCP? +

Register the Virtuoso Schematic MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every Virtuoso Schematic MCP tool call.

Deterministic rules across all 22 Virtuoso Schematic MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON VIRTUOSO SCHEMATIC →

Instant setup, no code required.

22 Virtuoso Schematic MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.