Retrieve migration summary for a county or state showing aggregate inflows, outflows, and net migration. Returns net returns (positive = net in-migration, negative = net out-migration), net exemptions (proxy for people), and net AGI (adjusted gross income in thousands of dollars). Year is specifi...
AI agents call get_migration_summary to retrieve information from loc8n Geographic Data without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
fips | string | Yes | FIPS code — 5 digits for county, 2 for state |
year | string | — | Year pair (e.g., '2021-2022'). Defaults to most recent available. |
level | string | Yes | Geographic level: county or state |
Parameters from the server's own tool schema.
This tool queries and retrieves historical demographic and migration statistics from a public data source (IRS Statistics of Income). It has no side effects—it only reads and returns aggregated, anonymized migration data at county/state level. No data is created, modified, deleted, or used to execute external operations.
From the tool's definition Tool description uses 'Retrieve' and 'Returns' language indicating data query operation. Returns aggregate migration statistics (net in-migration, outflows, population proxies, income data) from IRS public statistics.
Attacks that exploit this kind of access
Retrieve migration summary for a county or state showing aggregate inflows, outflows, and net migration. Returns net returns (positive = net in-migration, negative = net out-migration), net exemptions (proxy for people), and net AGI (adjusted gross income in thousands of dollars). Year is specified as a year pair (e.g., '2021-2022') representing tax filing year transitions. Source: IRS Statistics of Income. It is categorised as a Read tool in the loc8n Geographic Data MCP Server, which means it retrieves data without modifying state.
get_migration_summary accepts 3 parameters: fips, year, level. Required: fips, level. The full parameter table on this page comes from the server's own tool schema.
Register the loc8n Geographic Data MCP server in PolicyLayer and add a rule for get_migration_summary: 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 loc8n Geographic Data. Nothing to install.
get_migration_summary 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_migration_summary 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_migration_summary. 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_migration_summary is provided by the loc8n Geographic Data MCP server (gener8v/gener8v.mcp.geographic-data). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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