clio_create_flat_fee_activity
AI agents use clio_create_flat_fee_activity to create or update resources in Clio — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Clio environment.
This tool creates a new flat fee activity record in Clio, which modifies the system state by adding billable activity data. This is reversible (can be deleted via 'clio_delete_' operations on sibling tools), making it Write rather than Destructive. High severity because misuse could create incorrect billing records affecting client invoicing in a legal practice.
From the tool's definition Tool name prefix 'clio_create_' indicates creation of data. Sibling tools include 'clio_create_company_contact', 'clio_create_matter', 'clio_create_person_contact', all of which are Write operations in a legal practice management system.
Documented attack patterns abuse exactly the kind of access clio_create_flat_fee_activity gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Clio, and nothing reaches the server without passing your rules. This is the rule we recommend for clio_create_flat_fee_activity:
{
"version": "1",
"default": "deny",
"tools": {
"clio_create_flat_fee_activity": {
"limits": [
{
"counter": "clio_create_flat_fee_activity_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}clio_create_flat_fee_activity 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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clio_create_flat_fee_activity. It is categorised as a Write tool in the Clio MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Clio MCP server in PolicyLayer and add a rule for clio_create_flat_fee_activity: 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 Clio. Nothing to install.
clio_create_flat_fee_activity 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 clio_create_flat_fee_activity 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 clio_create_flat_fee_activity. 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.
clio_create_flat_fee_activity is provided by the Clio MCP server (lawyered0/clio-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Clio, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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10 Clio tools catalogued and risk-classified — across an index of 43,000+ MCP servers.