Find channels whose name contains a substring (case-insensitive). Returns matching channels (id, name, type) as a JSON array. Read-only. Useful for resolving a channel_id when you only know the channel
AI agents call discord_find_channel_by_name to retrieve information from Discord 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 channel information based on a substring match. It has no side effects, does not modify Discord state, and is clearly labeled as read-only. The worst-case misuse would be information disclosure about channel names, which is a low-severity exposure in the context of an MCP server with access to a specific Discord guild.
From the tool's definition Tool description explicitly states 'Read-only' and performs a search/query operation ('Find channels whose name contains a substring'). Returns matching channels with metadata (id, name, type) without modifying any data.
Attacks that exploit this kind of access
Find channels whose name contains a substring (case-insensitive). Returns matching channels (id, name, type) as a JSON array. Read-only. Useful for resolving a channel_id when you only know the channel. It is categorised as a Read tool in the Discord MCP Server, which means it retrieves data without modifying state.
Register the Discord MCP server in PolicyLayer and add a rule for discord_find_channel_by_name: 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 Discord. Nothing to install.
discord_find_channel_by_name 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_find_channel_by_name 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_find_channel_by_name. 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_find_channel_by_name is provided by the Discord MCP server (@pasympa/discord-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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