Submit a list of URLs to be checked. Returns a job_id that can be polled via get_job_status or fetched via get_job_results. For up to ~200 URLs this tool waits for completion (up to 60 seconds) and returns the results directly; for larger jobs it returns early with job_id and the agent should poll.
Part of the Bulk Url Checker server.
Free to start. No card required.
AI agents use submit_urls to create or modify resources in Bulk Url Checker. 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 submit_urls 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 Bulk Url Checker.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"submit_urls": {
"limits": [
{
"counter": "submit_urls_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Bulk Url Checker policy for all 4 tools.
These attack patterns abuse exactly the kind of access submit_urls 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.
Submit a list of URLs to be checked. Returns a job_id that can be polled via get_job_status or fetched via get_job_results. For up to ~200 URLs this tool waits for completion (up to 60 seconds) and returns the results directly; for larger jobs it returns early with job_id and the agent should poll.. It is categorised as a Write tool in the Bulk Url Checker MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Bulk Url Checker MCP server in PolicyLayer and add a rule for submit_urls: 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 Bulk Url Checker. Nothing to install.
submit_urls 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 submit_urls 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 submit_urls. 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.
submit_urls is provided by the Bulk Url Checker MCP server (https://mcp.bulkurlchecker.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 4 Bulk Url Checker tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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