# get_city_overview

Get a ONE-CALL overview of everything InfraNode knows about a German city. Start here for any city question. Returns: the city's base data, a CATALOG of all 81 available data types (weather, air quality, public transit, trains, traffic, charging, parking, solar, energy, demographics, taxes, accidents, tourism, heritage, trees, population density, playgrounds, post boxes and many more), each with its coverage status and the exact tool to call next (for most data types that is get_city_resource(slug, resource=<type>)), plus a small live highlights snapshot (current weather, air quality and train departures). Data types not yet covered for this city show where they ARE available so you can pivot. InfraNode keeps adding data and cities, so the catalog grows over time. Read-only.

Agent View of the PolicyLayer registry record for `get_city_overview`. HTML page: https://policylayer.com/tools/dev-infranode-infranode/get-city-overview

## Facts

- Tool: `get_city_overview`
- Server: InfraNode (`https://mcp.infranode.dev/mcp`) — https://policylayer.com/tools/dev-infranode-infranode.md
- Homepage: https://github.com/street1983nk/infranode
- Risk category: Read (Low risk)
- Registry record: grade C, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 1 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `slug` | string | yes | City identifier, e.g. 'berlin' or 'hamburg'. Resolved leniently: the German name with or without umlauts, any casing, a common English exonym or short form also |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_city_overview",
    "arguments": {
      "slug": "<slug>"
    }
  }
}
```

## Why get_city_overview is rated Low

Tool retrieves city data and resource metadata with no side effects or modifications.

From the tool's own definition: "ONE-CALL overview, Returns: the city's base data, a CATALOG, read-only"

Risk signals: Bulk/mass operation — affects multiple targets

## Use case

AI agents call get_city_overview to retrieve information from InfraNode without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches InfraNode:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_city_overview": {}
  }
}
```

## Other tools on InfraNode (11)

- `air_quality` — Read — https://policylayer.com/tools/dev-infranode-infranode/air-quality.md
- `compare` — Read — https://policylayer.com/tools/dev-infranode-infranode/compare.md
- `get_city` — Read — https://policylayer.com/tools/dev-infranode-infranode/get-city.md
- `get_city_resource` — Read — https://policylayer.com/tools/dev-infranode-infranode/get-city-resource.md
- `list_cities` — Read — https://policylayer.com/tools/dev-infranode-infranode/list-cities.md
- `pois` — Read — https://policylayer.com/tools/dev-infranode-infranode/pois.md
- `sources` — Read — https://policylayer.com/tools/dev-infranode-infranode/sources.md
- `station_board_arrivals` — Read — https://policylayer.com/tools/dev-infranode-infranode/station-board-arrivals.md
- `station_board_departures` — Read — https://policylayer.com/tools/dev-infranode-infranode/station-board-departures.md
- `transit_departures` — Read — https://policylayer.com/tools/dev-infranode-infranode/transit-departures.md
- `weather` — Read — https://policylayer.com/tools/dev-infranode-infranode/weather.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=dev-infranode-infranode · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/dev-infranode-infranode