decode_aa_fi_type

THE RISK

Low Risk

Why decode_aa_fi_type needs a policy

This tool decodes/interprets a financial information type identifier and returns metadata about tool pairings. It is a read/lookup operation with no side effects, data modification, or financial transactions involved. The term 'decode' indicates parsing/interpretation of an input value rather than any mutation or execution.

From the tool's definition Decode AA Financial Information type and get MCP tool pairings

Documented attack patterns abuse exactly the kind of access decode_aa_fi_type gives an agent:

POLICY

How to control decode_aa_fi_type

PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp India Stack, and nothing reaches the server without passing your rules. This is the rule we recommend for decode_aa_fi_type:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "decode_aa_fi_type": {}
  }
}

decode_aa_fi_type is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Mcp India Stack — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about decode_aa_fi_type

What does the decode_aa_fi_type tool do? +

Decode AA Financial Information type and get MCP tool pairings. It is categorised as a Read tool in the Mcp India Stack MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on decode_aa_fi_type? +

Register the Mcp India Stack MCP server in PolicyLayer and add a rule for decode_aa_fi_type: 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 Mcp India Stack. Nothing to install.

What risk level is decode_aa_fi_type? +

decode_aa_fi_type is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit decode_aa_fi_type? +

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

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

decode_aa_fi_type is provided by the Mcp India Stack MCP server (rehan1020/mcp-india-stack). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp India Stack tool call.

Start from Mcp India Stack, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →