Get players currently on waivers in the league
AI agents call get_waivers to retrieve information from Yahoo Fantasy MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves waiver information without modifying, executing code, deleting data, or committing financial transactions. It is a straightforward data query with no side effects, fitting the Read category definition.
From the tool's definition Tool name 'get_waivers' and description 'Get players currently on waivers in the league' indicate a query operation that retrieves data.
Attacks that exploit this kind of access
Get players currently on waivers in the league. It is categorised as a Read tool in the Yahoo Fantasy MCP MCP Server, which means it retrieves data without modifying state.
Register the Yahoo Fantasy MCP server in PolicyLayer and add a rule for get_waivers: 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 Yahoo Fantasy MCP. Nothing to install.
get_waivers 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_waivers 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_waivers. 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_waivers is provided by the Yahoo Fantasy MCP server (spilchen/yahoo_fantasy_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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