Low Risk

bond_data

Retrieves detailed data for a specific bond from Tesouro Direto

Accepts freeform code/query input (code); Single-target operation

Part of the Tesouro Direto MCP Server MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

AI agents call bond_data to retrieve information from Tesouro Direto MCP Server 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 bond_data 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.

atilioa-tesouro-direto-mcp.yaml
tools:
  bond_data:
    rules:
      - action: allow

See the full Tesouro Direto MCP Server policy for all 3 tools.

Tool Name bond_data
Category Read
Risk Level Low

Agents calling read-class tools like bond_data 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 bond_data tool do? +

Retrieves detailed data for a specific bond from Tesouro Direto. It is categorised as a Read tool in the Tesouro Direto MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on bond_data? +

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

What risk level is bond_data? +

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

Can I rate-limit bond_data? +

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

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

bond_data is provided by the Tesouro Direto MCP Server MCP server (AtilioA/tesouro-direto-mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Let agents act without letting them run wild.

Deterministic policy on every MCP tool call. Per-identity grants. Full audit log.

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