InfraNode

Station Board: Departures

station_board_departures

Read-onlyIdempotent

Get live departures for ANY railway station by its EVA number.

Covers all train categories including local/regional (S/RB/RE) and long distance, with real-time delays, cancellations and disruption messages. Get the EVA from get_city_resource(slug, resource='stations'). Read-only.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`eva`	Yes	Station EVA number (digits only) from get_city_resource(slug, resource='stations'), e.g. '8011160' (Berlin Hbf).

Output Schema

TableJSON Schema

Name	Required	Description	Default
`data`	Yes
`meta`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedAug 17, 2026
- addedOutput schema / $defs / ToolMeta / properties / note
```
Added value: +{
+  "type": "string"
+}
```

Changed13 schema fields changedJul 2, 2026

changedInput schema / properties / eva / description

Previous value: -"Station EVA number (digits only) from the stations tool, e.g. '8011160' (Berlin Hbf)."New value: +"Station EVA number (digits only) from get_city_resource(slug, resource='stations'), e.g. '8011160' (Berlin Hbf)."

removedInput schema / properties / eva / title
```
Removed value: -"Eva"
```

removedInput schema / title

Removed value: -"station_board_departuresArguments"

removedOutput schema / $defs / ToolMeta / description

Removed value: -"Envelope-Metadaten: Quelle, Status, Cache, Lizenz und Attribution.\n\nZusatzfelder (z.B. ``covered_cities``, ``radius_m`` bei partieller Abdeckung)\nbleiben dank ``extra=\"allow\"`` erhalten."

removedOutput schema / $defs / ToolMeta / properties / attribution / title
```
Removed value: -"Attribution"
```
removedOutput schema / $defs / ToolMeta / properties / cache_status / title
```
Removed value: -"Cache Status"
```
removedOutput schema / $defs / ToolMeta / properties / correlation_id / title
```
Removed value: -"Correlation Id"
```
removedOutput schema / $defs / ToolMeta / properties / license / title
```
Removed value: -"License"
```
removedOutput schema / $defs / ToolMeta / properties / source / title
```
Removed value: -"Source"
```
removedOutput schema / $defs / ToolMeta / properties / source_status / title
```
Removed value: -"Source Status"
```
removedOutput schema / $defs / ToolMeta / title
```
Removed value: -"ToolMeta"
```
removedOutput schema / properties / data / title
```
Removed value: -"Data"
```
removedOutput schema / title
```
Removed value: -"ToolEnvelope"
```

Changed2 schema fields changedJun 21, 2026

addedInput schema / properties / eva / description

Added value: +"Station EVA number (digits only) from the stations tool, e.g. '8011160' (Berlin Hbf)."

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$defs": {
+    "ToolMeta": {
+      "additionalProperties": true,
+      "description": "Envelope-Metadaten: Quelle, Status, Cache, Lizenz und Attribution.\n\nZusatzfelder (z.B. ``covered_cities``, ``radius_m`` bei partieller Abdeckung)\nbleiben dank ``extra=\"allow\"`` erhalten.",
+      "properties": {
+        "attribution": {
+          "title": "Attribution",
+          "type": "string"
+        },
+        "cache_status": {
+          "title": "Cache Status",
+          "type": "string"
+        },
+        "correlation_id": {
+          "title": "Correlation Id",
+          "type": "string"
+        },
+        "license": {
+          "title": "License",
+          "type": "string"
+        },
+        "source": {
+          "title": "Source",
+          "type": "string"
+        },
+        "source_status": {
+          "title": "Source Status",
+          "type": "string"
+        }
+      },
+      "title": "ToolMeta",
+      "type": "object"
+    }
+  },
+  "properties": {
+    "data": {
+      "title": "Data"
+    },
+    "meta": {
+      "$ref": "#/$defs/ToolMeta"
+    }
+  },
+  "required": [
+    "data",
+    "meta"
+  ],
+  "title": "ToolEnvelope",
+  "type": "object"
+}

AddedJun 19, 2026

TDQS

A4.1/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already provide readOnlyHint, idempotentHint, and destructiveHint. Description adds context about real-time delays, cancellations, and disruption messages, and states 'Read-only', which is consistent. It provides extra behavioral context beyond what annotations convey.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Three sentences with no wasted words. First sentence states purpose, second adds coverage details, third provides parameter sourcing. Information is front-loaded and every sentence earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the single parameter with high schema coverage, an output schema (present), and rich annotations, the description is fully sufficient. It covers the tool's purpose, data scope, and parameter retrieval without gaps.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so baseline is 3. The description reiterates how to get the EVA number from get_city_resource, which the schema already includes. No new parameter semantics are added beyond the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

Description clearly states 'Get live departures for ANY railway station by its EVA number', specifying a specific verb and resource. It distinguishes from sibling 'station_board_arrivals' by focusing on departures, and covers train categories and real-time data, leaving no ambiguity.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Description explains when to use (get live departures) and how to obtain the required parameter from another tool. However, it does not explicitly differentiate from siblings like 'transit_departures' or state when not to use this tool, leaving room for confusion about alternatives.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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