fill_filing_status · FreeTaxUSA MCP Server MCP

WHAT IT DOES

What fill_filing_status does on FreeTaxUSA MCP Server

AI agents use fill_filing_status to create or update resources in FreeTaxUSA MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your FreeTaxUSA MCP Server environment.

WHY IT NEEDS A POLICY

Why fill_filing_status needs a policy

The tool creates or modifies tax filing data (a core component of a tax return) through browser automation. While it doesn't delete data (not Destructive) or move money directly (not Financial), it reversibly writes/updates form state.

From the tool's definition Tool name 'fill_filing_status' and description indicating it 'Set[s] the filing status' to one of several enumerated options. This modifies tax form data within the FreeTaxUSA system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

fill_filing_status Rate-limited

fill_filing_status 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": {
    "fill_filing_status": {
      "limits": [
        {
          "counter": "fill_filing_status_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about fill_filing_status

What does the fill_filing_status tool do? +

Set the filing status (single, married_joint, married_separate, head_of_household, qualifying_widow). It is categorised as a Write tool in the FreeTaxUSA MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on fill_filing_status? +

Register the FreeTaxUSA MCP Server MCP server in PolicyLayer and add a rule for fill_filing_status: 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 FreeTaxUSA MCP Server. Nothing to install.

What risk level is fill_filing_status? +

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

Can I rate-limit fill_filing_status? +

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

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

fill_filing_status is provided by the FreeTaxUSA MCP Server MCP server (schwarztim/freetaxusa-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.