List all 28 available Catalyst UI components organized by category. Categories include: forms (button, checkbox, fieldset, input, radio, select, switch, textarea), navigation (navbar, sidebar, dropdown, link), layout (divider, heading, stacked-layout, auth-layout), feedback (alert, badge, dialog)...
Part of the Next Js Tailwind Assistant server.
Free to start. No card required.
AI agents call list_catalyst_components to retrieve information from Next Js Tailwind Assistant without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though list_catalyst_components only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"list_catalyst_components": {}
}
}See the full Next Js Tailwind Assistant policy for all 16 tools.
These attack patterns abuse exactly the kind of access list_catalyst_components gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
List all 28 available Catalyst UI components organized by category. Categories include: forms (button, checkbox, fieldset, input, radio, select, switch, textarea), navigation (navbar, sidebar, dropdown, link), layout (divider, heading, stacked-layout, auth-layout), feedback (alert, badge, dialog), data-display (avatar, description-list, listbox, pagination, table, text), and advanced (combobox).. It is categorised as a Read tool in the Next Js Tailwind Assistant MCP Server, which means it retrieves data without modifying state.
Register the Next Js Tailwind Assistant MCP server in PolicyLayer and add a rule for list_catalyst_components: 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 Next Js Tailwind Assistant. Nothing to install.
list_catalyst_components 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 list_catalyst_components 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 list_catalyst_components. 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.
list_catalyst_components is provided by the Next Js Tailwind Assistant MCP server (CaullenOmdahl/nextjs-react-tailwind-assistant). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 16 Next Js Tailwind Assistant 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.