Call this FIRST when you need a capability not in your current tool list. Returns every service accessible through this Clevername gateway — user-registered MCP connections, marketplace servers, and built-in protocols (ARCP, ANCP, SignedApproval). Shows injection mode (always_on or plugin) and cu...
Bulk/mass operation — affects multiple targets
Part of the Clevername MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
AI agents call list_available_mcps to retrieve information from Clevername 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_available_mcps 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.
tools:
list_available_mcps:
rules:
- action: allowSee the full Clevername policy for all 67 tools.
Agents calling read-class tools like list_available_mcps have been implicated in these attack patterns. Read the full case and prevention policy for each:
Other tools in the Read risk category across the catalogue. The same policy patterns (rate-limit, allow) apply to each.
Call this FIRST when you need a capability not in your current tool list. Returns every service accessible through this Clevername gateway — user-registered MCP connections, marketplace servers, and built-in protocols (ARCP, ANCP, SignedApproval). Shows injection mode (always_on or plugin) and current session activation status. After identifying what you need, use activate_mcp({name}) to load its tools into this session.. It is categorised as a Read tool in the Clevername MCP Server, which means it retrieves data without modifying state.
Add a rule in your Intercept YAML policy under the tools section for list_available_mcps. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Clevername MCP server.
list_available_mcps 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_available_mcps rule in your Intercept 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 Intercept policy for list_available_mcps. 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_available_mcps is provided by the Clevername MCP server (@clevername/clevername-mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Open source. One binary. Zero dependencies.
npx -y @policylayer/intercept