This record as markdown: /tools/1cent/url-changed.md
What url_changed does on 1cent
AI agents call url_changed to retrieve information from 1cent without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why url_changed is rated Low
Based on naming convention and sibling tools (all appear to be read-only URL intelligence queries), this tool likely retrieves change history or status information about URLs. The lack of description lowers confidence slightly, but the 'url_*' pattern and integration with a passive intelligence service suggests no side effects, making it a Read operation.
From the tool's definition Tool name 'url_changed' suggests checking or retrieving change status of a URL. No description provided, but the context (URL intelligence service alongside tools like 'url_pulse', 'url_passport', 'demo_url_pulse') indicates it queries URL metadata rather…
Attacks that exploit this kind of access
The rule that runs url_changed safely
PolicyLayer is an MCP gateway: it sits between your AI agents and 1cent, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For url_changed, this is the rule to start with:
url_changed 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 1cent, apply this rule, and every url_changed call is checked against it from then on.
Questions about url_changed
url_changed is a read tool on the 1cent MCP server. It is categorised as a Read tool in the 1cent MCP Server, which means it retrieves data without modifying state.
Register the 1cent MCP server in PolicyLayer and add a rule for url_changed: 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 1cent. Nothing to install.
url_changed 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 url_changed 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 url_changed. 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.
url_changed is provided by the 1cent MCP server (maxzoa/1cent). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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