vivado_build_bitstream · Vivado Mcp Agent MCP: Risk & Policy

WHAT IT DOES

What vivado_build_bitstream does on Vivado Mcp Agent

AI agents invoke vivado_build_bitstream to trigger actions in Vivado Mcp Agent. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why vivado_build_bitstream needs a policy

This tool triggers FPGA bitstream generation—a multi-stage compilation and implementation process that produces executable hardware configuration. While not permanently destructive (bitstreams can be overwritten), the action executes deterministic workflows with external effects on FPGA hardware state and design closure. It does not merely read data (Read), nor is it a simple reversible data creation (Write).

From the tool's definition Tool builds a bitstream, which is a compiled binary output that directly programs FPGA hardware. The description states it passes DRC/timing gates or uses risk overrides, indicating execution of hardware synthesis/implementation workflows with tangible…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

vivado_build_bitstream Rate-limited

vivado_build_bitstream stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "vivado_build_bitstream": {
      "limits": [
        {
          "counter": "vivado_build_bitstream_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Vivado Mcp Agent, so you can run agents against it safely.

FAQ

Questions about vivado_build_bitstream

What does the vivado_build_bitstream tool do? +

Build bitstream only after DRC/timing gates pass or explicit risk overrides are set. It is categorised as a Execute tool in the Vivado Mcp Agent MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on vivado_build_bitstream? +

Register the Vivado Mcp Agent MCP server in PolicyLayer and add a rule for vivado_build_bitstream: 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 Vivado Mcp Agent. Nothing to install.

What risk level is vivado_build_bitstream? +

vivado_build_bitstream is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit vivado_build_bitstream? +

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

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

vivado_build_bitstream is provided by the Vivado Mcp Agent MCP server (wangyuxin0707/vivado-mcp-agent). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.