Low Risk

get_cpf_rates

Get Singapore CPF contribution rate tables by citizenship status. Returns all age band rates with employee/employer percentages and OA/SA/MA allocation splits. Use this tool when you need to look up CPF rate schedules for workforce planning or compliance documentation.

Part of the Sg Cpf Calculator MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

AI agents call get_cpf_rates to retrieve information from Sg Cpf Calculator 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 get_cpf_rates 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.

vdineshk-sg-cpf-calculator-mcp.yaml
tools:
  get_cpf_rates:
    rules:
      - action: allow

See the full Sg Cpf Calculator policy for all 4 tools.

Tool Name get_cpf_rates
Category Read
Risk Level Low

Agents calling read-class tools like get_cpf_rates 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 Read risk category across the catalogue. The same policy patterns (rate-limit, allow) apply to each.

What does the get_cpf_rates tool do? +

Get Singapore CPF contribution rate tables by citizenship status. Returns all age band rates with employee/employer percentages and OA/SA/MA allocation splits. Use this tool when you need to look up CPF rate schedules for workforce planning or compliance documentation.. It is categorised as a Read tool in the Sg Cpf Calculator MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_cpf_rates? +

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

What risk level is get_cpf_rates? +

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

Can I rate-limit get_cpf_rates? +

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

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

get_cpf_rates is provided by the Sg Cpf Calculator MCP server (vdineshk/sg-cpf-calculator-mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Sg Cpf Calculator

Open source. One binary. Zero dependencies.

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

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