Update your Upwork profile fields: title, description/bio, hourly_rate, skills.
AI agents use update_profile to create or update resources in Upwork — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Upwork environment.
The tool creates or modifies profile data (title, bio, rate, skills) which is a Write action. It affects the user's professional reputation and earning potential on Upwork, warranting high severity.
From the tool's definition Tool description explicitly states it 'Update[s] your Upwork profile fields: title, description/bio, hourly_rate, skills.' This directly modifies user account data reversibly.
Documented attack patterns abuse exactly the kind of access update_profile gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Upwork, and nothing reaches the server without passing your rules. This is the rule we recommend for update_profile:
{
"version": "1",
"default": "deny",
"tools": {
"update_profile": {
"limits": [
{
"counter": "update_profile_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}update_profile 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 your Upwork profile fields: title, description/bio, hourly_rate, skills. It is categorised as a Write tool in the Upwork MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Upwork MCP server in PolicyLayer and add a rule for update_profile: 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 Upwork. Nothing to install.
update_profile 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_profile 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_profile. 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_profile is provided by the Upwork MCP server (zcrossoverz/upwork-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Upwork, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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11 Upwork tools catalogued and risk-classified — across an index of 43,000+ MCP servers.