List all available merge request provider names.
AI agents call list_merge_request_providers to retrieve information from Ubuntu MCP Servers without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool simply lists/enumerates available merge request providers. It is a read-only query operation that retrieves metadata about providers. No data is created, modified, deleted, or executed. The blast radius of misuse is minimal—an agent could only discover what providers exist, which is low-risk information disclosure.
From the tool's definition Tool name 'list_merge_request_providers' and description 'List all available merge request provider names' indicate a retrieval operation that enumerates provider names without modifying data or triggering side effects.
Attacks that exploit this kind of access
List all available merge request provider names. It is categorised as a Read tool in the Ubuntu MCP Servers MCP Server, which means it retrieves data without modifying state.
Register the Ubuntu MCP Servers MCP server in PolicyLayer and add a rule for list_merge_request_providers: 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 Ubuntu MCP Servers. Nothing to install.
list_merge_request_providers 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_merge_request_providers 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_merge_request_providers. 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_merge_request_providers is provided by the Ubuntu MCP Servers MCP server (lvoytek/ubuntu-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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