vigil_update_card_mode

// WHEN AI AGENTS USE THIS TOOL

AI agents use vigil_update_card_mode to create or modify resources in Vigil Fraud Alert. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.

// WHY ENFORCE A POLICY ON VIGIL_UPDATE_CARD_MODE

Without a policy, an AI agent could call vigil_update_card_mode repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Vigil Fraud Alert.

// RECOMMENDED POLICY

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

ebenova-vigil-fraud-alert.yaml

tools:
  vigil_update_card_mode:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full Vigil Fraud Alert policy for all 13 tools.

// DETAILS

Tool Name vigil_update_card_mode

Category Write

MCP Server Vigil Fraud Alert MCP Server

Risk Level Medium

// MORE VIGIL FRAUD ALERT TOOLS

Write vigil_add_travel_plan Write vigil_generate_report Write vigil_update_alert Write vigil_update_gps Read vigil_analyze_transaction Read vigil_authorize Read vigil_block_transaction Read vigil_confirm_transaction

View all 13 tools →

// WHAT CAN GO WRONG

Agents calling write-class tools like vigil_update_card_mode have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

// OTHER WRITE TOOLS ACROSS MCP SERVERS

Other tools in the Write risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.

AbraFlexi contact_create AbraFlexi contact_update AbraFlexi evidence_create AbraFlexi evidence_update AbraFlexi invoice_issued_update AbraFlexi invoice_received_create

// RELATED READING

// FAQ

What does the vigil_update_card_mode tool do? +

Set card mode: home, travel, or lockdown. It is categorised as a Write tool in the Vigil Fraud Alert MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on vigil_update_card_mode? +

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

What risk level is vigil_update_card_mode? +

vigil_update_card_mode is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit vigil_update_card_mode? +

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

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

vigil_update_card_mode is provided by the Vigil Fraud Alert MCP server (ebenova/vigil-fraud-alert). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Vigil Fraud Alert