add-comment

// WHEN AI AGENTS USE THIS TOOL

AI agents use add-comment to create or modify resources in Trello MCP Server. 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 ADD-COMMENT

Without a policy, an AI agent could call add-comment 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 Trello MCP Server.

// RECOMMENDED POLICY

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

trello-mcp-server.yaml

tools:
  add-comment:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full Trello MCP Server policy for all 16 tools.

// DETAILS

Tool Name add-comment

Category Write

MCP Server Trello MCP Server MCP Server

Risk Level Medium

// MORE TRELLO MCP SERVER TOOLS

Write add-comments Write add-label Write add-labels Write archive-card Write archive-cards Write create-card Write create-cards Write create-label

View all 16 tools →

// WHAT CAN GO WRONG

Agents calling write-class tools like add-comment 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 add-comment tool do? +

add-comment. It is categorised as a Write tool in the Trello MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on add-comment? +

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

What risk level is add-comment? +

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

Can I rate-limit add-comment? +

Yes. Add a rate_limit block to the add-comment 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 add-comment completely? +

Set action: deny in the Intercept policy for add-comment. 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 add-comment? +

add-comment is provided by the Trello MCP Server MCP server (fastmcp-trello). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Trello MCP Server