AI agents use update_comment to create or update resources in Frontapp MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Frontapp MCP Server environment.
This tool modifies existing comment data within Frontapp's customer communication platform. It is a Write operation because it changes data reversibly. Severity is medium because misuse could alter customer-facing communications or internal notes, potentially affecting customer relationships or business operations, but the impact is limited to a single comment and remains editable/recoverable.
From the tool's definition Tool name 'update_comment' and description 'Update a comment' indicate modification of existing data. The operation is reversible (comments can be updated again or reverted), and the sibling tools on this server (add_comment, add_comment_reply,…
Documented attack patterns abuse exactly the kind of access update_comment gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Frontapp MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for update_comment:
{
"version": "1",
"default": "deny",
"tools": {
"update_comment": {
"limits": [
{
"counter": "update_comment_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}update_comment stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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Update a comment. It is categorised as a Write tool in the Frontapp MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Frontapp MCP Server MCP server in PolicyLayer and add a rule for update_comment: 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 Frontapp MCP Server. Nothing to install.
update_comment is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the update_comment 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.
Set action: deny in the PolicyLayer policy for update_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.
update_comment is provided by the Frontapp MCP Server MCP server (zqushair/frontapp-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Frontapp MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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151 Frontapp MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.