Estimate Indian state stamp duty + registration charges on a property purchase. Supports all 28 states + 8 UTs with per-state buyer-gender concessions, urban/rural overrides, and commercial/agricultural multipliers. Returns supported=false + zero numerics when the input state is outside India (su...
Part of the AVnester — Indian Real Estate Intelligence server.
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AI agents call estimate_stamp_duty_and_registration to retrieve information from AVnester — Indian Real Estate Intelligence 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 estimate_stamp_duty_and_registration 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": {
"estimate_stamp_duty_and_registration": {}
}
}See the full AVnester — Indian Real Estate Intelligence policy for all 11 tools.
These attack patterns abuse exactly the kind of access estimate_stamp_duty_and_registration 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.
Estimate Indian state stamp duty + registration charges on a property purchase. Supports all 28 states + 8 UTs with per-state buyer-gender concessions, urban/rural overrides, and commercial/agricultural multipliers. Returns supported=false + zero numerics when the input state is outside India (supported states named in rateBasis). Not legal/tax advice. Always surface the disclaimer field in your reply.. It is categorised as a Read tool in the AVnester — Indian Real Estate Intelligence MCP Server, which means it retrieves data without modifying state.
Register the AVnester — Indian Real Estate Intelligence MCP server in PolicyLayer and add a rule for estimate_stamp_duty_and_registration: 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 AVnester — Indian Real Estate Intelligence. Nothing to install.
estimate_stamp_duty_and_registration 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 estimate_stamp_duty_and_registration 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 estimate_stamp_duty_and_registration. 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.
estimate_stamp_duty_and_registration is provided by the AVnester — Indian Real Estate Intelligence MCP server (https://mcp.avnester.com/public-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 11 AVnester — Indian Real Estate Intelligence tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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