List all available query and transaction modules. Call this before using cosmos_query or cosmos_tx to discover what modules are available.
AI agents call list_modules to retrieve information from Manifest MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves metadata about available modules to inform subsequent operations. It is purely informational and read-only, analogous to listing available commands or resources. No state is changed, no code is executed, and no data is created, modified, or deleted. The low severity reflects that misuse simply returns information about the system's capabilities rather than affecting assets or operations.
From the tool's definition Tool description states "List all available query and transaction modules" — a discovery/enumeration action with no data modification or side effects.
Attacks that exploit this kind of access
List all available query and transaction modules. Call this before using cosmos_query or cosmos_tx to discover what modules are available. It is categorised as a Read tool in the Manifest MCP MCP Server, which means it retrieves data without modifying state.
Register the Manifest MCP server in PolicyLayer and add a rule for list_modules: 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 Manifest MCP. Nothing to install.
list_modules 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_modules 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_modules. 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_modules is provided by the Manifest MCP server (manifest-network/manifest-mcp-mono). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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