Add labels to bookmarked posts. Either label_id or label_name must be provided.
Part of the Linkedmash server.
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AI agents use add_labels to create or modify resources in Linkedmash. 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.
Without a policy, an AI agent could call add_labels repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Linkedmash.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"add_labels": {
"limits": [
{
"counter": "add_labels_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Linkedmash policy for all 7 tools.
These attack patterns abuse exactly the kind of access add_labels gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Add labels to bookmarked posts. Either label_id or label_name must be provided.. It is categorised as a Write tool in the Linkedmash MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Linkedmash MCP server in PolicyLayer and add a rule for add_labels: 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 Linkedmash. Nothing to install.
add_labels 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 add_labels 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 add_labels. 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.
add_labels is provided by the Linkedmash MCP server (RamyaChinnadurai/linkedmash). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 7 Linkedmash tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.