List all configured providers and their status
AI agents call provider_list to retrieve information from Cost Management MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns information about configured cost management providers. It performs a straightforward read operation that retrieves status information without creating, modifying, deleting, or executing any operations. The blast radius of misuse is minimal—an agent listing providers gains visibility into configured accounts but cannot take financial actions or modify configurations.
From the tool's definition Tool name 'provider_list' and description 'List all configured providers and their status' indicate a retrieval operation with no data modification or side effects.
Attacks that exploit this kind of access
List all configured providers and their status. It is categorised as a Read tool in the Cost Management MCP MCP Server, which means it retrieves data without modifying state.
Register the Cost Management MCP server in PolicyLayer and add a rule for provider_list: 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 Cost Management MCP. Nothing to install.
provider_list 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 provider_list 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 provider_list. 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.
provider_list is provided by the Cost Management MCP server (knishioka/cost-management-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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