Create an update (comment) on a Monday.com Item or Sub-item.
AI agents use monday_create_update to create or update resources in Monday Com MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Monday Com MCP Server environment.
Creating comments/updates on items is a Write operation—it adds new data to Monday.com without permanently deleting or executing arbitrary code. The severity is medium because while updates are reversible (comments can be edited or deleted), they create a persistent audit trail and could be used to spam, harass, or inject misleading information into team workflows.
From the tool's definition Tool name 'monday_create_update' and description 'Create an update (comment)' explicitly indicates creation of new data (a comment/update on an item). This is a reversible modification operation.
Documented attack patterns abuse exactly the kind of access monday_create_update gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Monday Com MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for monday_create_update:
{
"version": "1",
"default": "deny",
"tools": {
"monday_create_update": {
"limits": [
{
"counter": "monday_create_update_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}monday_create_update 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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Create an update (comment) on a Monday.com Item or Sub-item. It is categorised as a Write tool in the Monday Com MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Monday Com MCP Server MCP server in PolicyLayer and add a rule for monday_create_update: 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 Monday Com MCP Server. Nothing to install.
monday_create_update 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 monday_create_update 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 monday_create_update. 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.
monday_create_update is provided by the Monday Com MCP Server MCP server (prat011/mcp-server-monday). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 15 Monday Com MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
15 Monday Com MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.