Low Risk

agent_list_capabilities

List your registered capabilities.

Handles credentials or secrets (api_key)

Part of the Voidly MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

@voidly/mcp-server Read Risk 2/5

AI agents call agent_list_capabilities to retrieve information from Voidly 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 agent_list_capabilities 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.

io-github-emperormew-voidly-mcp-server.yaml
tools:
  agent_list_capabilities:
    rules:
      - action: allow

See the full Voidly policy for all 87 tools.

Tool Name agent_list_capabilities
Category Read
MCP Server Voidly MCP Server
Risk Level Low

View all 87 tools →

Agents calling read-class tools like agent_list_capabilities have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

Other tools in the Read risk category across the catalogue. The same policy patterns (rate-limit, allow) apply to each.

What does the agent_list_capabilities tool do? +

List your registered capabilities.. It is categorised as a Read tool in the Voidly MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on agent_list_capabilities? +

Add a rule in your Intercept YAML policy under the tools section for agent_list_capabilities. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Voidly MCP server.

What risk level is agent_list_capabilities? +

agent_list_capabilities is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit agent_list_capabilities? +

Yes. Add a rate_limit block to the agent_list_capabilities 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.

How do I block agent_list_capabilities completely? +

Set action: deny in the Intercept policy for agent_list_capabilities. 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.

What MCP server provides agent_list_capabilities? +

agent_list_capabilities is provided by the Voidly MCP server (@voidly/mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Voidly

Open source. One binary. Zero dependencies.

npx -y @policylayer/intercept
github.com/policylayer/intercept →
// GET IN TOUCH

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