unclick_validate_url
Validate a URL format, optionally check if it's reachable.
This record as markdown: /tools/creativelead-unclick/unclick-validate-url.md
What unclick_validate_url does on UnClick
AI agents call unclick_validate_url to retrieve information from UnClick without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
url | string | — | |
check_reachable | boolean | — |
Parameters from the server's own tool schema.
Why unclick_validate_url is rated Low
This tool performs informational validation and network reachability checks without modifying data, executing code, or triggering side effects. It falls clearly into the Read category as it retrieves status information about a URL. Severity is low because even if misused, validating URLs poses minimal risk—no data is changed, no code is executed, and no financial impacts occur.
From the tool's definition Tool validates URL format and optionally checks reachability. The description indicates query/check operations only: 'validate' and 'check if it's reachable' are read-only operations with no data modification, deletion, or execution of external code.
Risk signalsAccepts URL/endpoint input (url)
Attacks that exploit this kind of access
The rule that runs unclick_validate_url safely
PolicyLayer is an MCP gateway: it sits between your AI agents and UnClick, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For unclick_validate_url, this is the rule to start with:
unclick_validate_url is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect UnClick, apply this rule, and every unclick_validate_url call is checked against it from then on.
Questions about unclick_validate_url
Validate a URL format, optionally check if it's reachable. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
unclick_validate_url accepts 2 parameters: url, check_reachable. The full parameter table on this page comes from the server's own tool schema.
Register the UnClick MCP server in PolicyLayer and add a rule for unclick_validate_url: 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 UnClick. Nothing to install.
unclick_validate_url is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the unclick_validate_url 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 unclick_validate_url. 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.
unclick_validate_url is provided by the UnClick MCP server (creativelead/unclick). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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