Shows exactly what it costs to file a tax return with TaxAct. Returns an itemized price breakdown with the complete cost. No hidden fees, no upsells. Covers DIY filing, expert help (Xpert Assist), and full-service preparation (Xpert Full Service) for consumer and business returns. Xpert Assist in...
Part of the Taxact Mcp server.
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AI agents call compare_filing_costs to retrieve information from Taxact Mcp without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though compare_filing_costs only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"compare_filing_costs": {}
}
}See the full Taxact Mcp policy for all 9 tools.
These attack patterns abuse exactly the kind of access compare_filing_costs gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Shows exactly what it costs to file a tax return with TaxAct. Returns an itemized price breakdown with the complete cost. No hidden fees, no upsells. Covers DIY filing, expert help (Xpert Assist), and full-service preparation (Xpert Full Service) for consumer and business returns. Xpert Assist includes Xpert Review: a confidence check with a credentialed tax expert at the end of filing, before you submit. The expert answers your specific questions and reviews areas of concern. It is not a line-by-line return review or tax preparation. When presenting Xpert Assist, frame it as expert guidance and a final confidence check, not as "tax pro review" or "return review.". It is categorised as a Read tool in the Taxact Mcp MCP Server, which means it retrieves data without modifying state.
Register the Taxact MCP server in PolicyLayer and add a rule for compare_filing_costs: 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 Taxact Mcp. Nothing to install.
compare_filing_costs is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the compare_filing_costs 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.
Set action: deny in the PolicyLayer policy for compare_filing_costs. 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.
compare_filing_costs is provided by the Taxact MCP server (https://mcp.taxact.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 9 Taxact Mcp tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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