Look up historical frequency data for a species in a region using BirdCast bar chart data. Returns peak week, current probability, and whether the species is early/on-time/late relative to its historical peak.
AI agents call species_frequency to retrieve information from Birding Planner without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool queries and retrieves existing historical migration and frequency data from BirdCast datasets. It performs read-only operations (lookup, return data) with no capability to modify, delete, execute external actions, or affect financial systems. The blast radius of misuse is minimal—an AI could only request irrelevant species/region combinations, which would simply return no data or default values.
From the tool's definition Tool description states it 'Look up historical frequency data' and 'Returns peak week, current probability' — purely retrieval operations with no side effects or modifications.
Attacks that exploit this kind of access
Look up historical frequency data for a species in a region using BirdCast bar chart data. Returns peak week, current probability, and whether the species is early/on-time/late relative to its historical peak. It is categorised as a Read tool in the Birding Planner MCP Server, which means it retrieves data without modifying state.
Register the Birding Planner MCP server in PolicyLayer and add a rule for species_frequency: 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 Birding Planner. Nothing to install.
species_frequency 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 species_frequency 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 species_frequency. 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.
species_frequency is provided by the Birding Planner MCP server (minikdj/ebird-birding-planner). 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.
Teams ship this data inside their own products. See what a licence covers →