특정 팀의 채널 목록을 가져옵니다.
AI agents call get_channels to retrieve information from Mattermost MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves channel metadata from a specific team without modifying, deleting, or executing any actions. It is a straightforward read operation with minimal blast radius—listing channels is informational only. Low severity because unauthorized channel listing poses minimal direct harm in a communication platform.
From the tool's definition Tool description states '특정 팀의 채널 목록을 가져옵니다' (retrieves a list of channels for a specific team). The verb '가져옵니다' (get/fetch) indicates data retrieval with no modification. Server description confirms 'retrieval' and 'information retrieval' as core functions.
Attacks that exploit this kind of access
특정 팀의 채널 목록을 가져옵니다. It is categorised as a Read tool in the Mattermost MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Mattermost MCP Server MCP server in PolicyLayer and add a rule for get_channels: 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 Mattermost MCP Server. Nothing to install.
get_channels 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 get_channels 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 get_channels. 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.
get_channels is provided by the Mattermost MCP Server MCP server (jhanglim/mattermost-mcp-server). 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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