List recent messages from a Discord channel with optional pagination parameters.
AI agents call discord_list_messages to retrieve information from Promethean OS MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries Discord message data with pagination support. It does not create, modify, delete, or execute any operations—it purely fetches information for display. This is a straightforward Read operation with minimal blast radius even if misused by an AI agent, as it only accesses existing data without altering state.
From the tool's definition Tool name 'discord_list_messages' and description 'List recent messages from a Discord channel with optional pagination parameters' indicate a query/retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
List recent messages from a Discord channel with optional pagination parameters. It is categorised as a Read tool in the Promethean OS MCP MCP Server, which means it retrieves data without modifying state.
Register the Promethean OS MCP server in PolicyLayer and add a rule for discord_list_messages: 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 Promethean OS MCP. Nothing to install.
discord_list_messages 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 discord_list_messages 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 discord_list_messages. 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.
discord_list_messages is provided by the Promethean OS MCP server (octave-commons/mcp). 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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