High Risk →

density_field

Compute density field for visualisation

Executes analysis computation

Part of the Scicomp Molecular MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

scicomp-molecular-mcp Execute Risk 3/5

AI agents invoke density_field to trigger processes or run actions in Scicomp Molecular. Execute operations can have side effects beyond the immediate call -- triggering builds, sending notifications, or starting workflows. Rate limits and argument validation are essential to prevent runaway execution.

density_field can trigger processes with real-world consequences. An uncontrolled agent might start dozens of builds, send mass notifications, or kick off expensive compute jobs. Intercept enforces rate limits and validates arguments to keep execution within safe bounds.

Execute tools trigger processes. Rate-limit and validate arguments to prevent unintended side effects.

io-github-andylbrummer-molecular-mcp.yaml
tools:
  density_field:
    rules:
      - action: allow
        rate_limit:
          max: 10
          window: 60
        validate:
          required_args: true

See the full Scicomp Molecular policy for all 12 tools.

Tool Name density_field
Category Execute
Risk Level High

View all 12 tools →

Agents calling execute-class tools like density_field have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

Other tools in the Execute risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.

density_field is one of the high-risk operations in Scicomp Molecular. For the full severity-focused view — only the high-risk tools with their recommended policies — see the breakdown for this server, or browse all high-risk tools across every MCP server.

What does the density_field tool do? +

Compute density field for visualisation. It is categorised as a Execute tool in the Scicomp Molecular MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on density_field? +

Add a rule in your Intercept YAML policy under the tools section for density_field. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Scicomp Molecular MCP server.

What risk level is density_field? +

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

Can I rate-limit density_field? +

Yes. Add a rate_limit block to the density_field rule in your Intercept 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 density_field completely? +

Set action: deny in the Intercept policy for density_field. 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 density_field? +

density_field is provided by the Scicomp Molecular MCP server (scicomp-molecular-mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Scicomp Molecular

Open source. One binary. Zero dependencies.

npx -y @policylayer/intercept
github.com/policylayer/intercept →
// GET IN TOUCH

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