DC Hub

Get Facility Details

get_facility

Read-onlyIdempotent

Use this when the user asks about one data center facility: name, operator, address, lat/lon, power capacity (MW total/used), cooling type, fiber providers (count + carrier list), commissioning year, status, the DCPI verdict for its market, and peer facilities nearby. Answers "who operates this data center and how big is it", "how many fiber carriers are in that building". Try: get_facility id=equinix-dc1-ashburn — or get_facility slug=digital-realty-digital-realty-iad38-ashburn-5754e62d. Returns ONE facility in full; do NOT use to search or list many facilities (use search_facilities). Needs a slug or id from search_facilities. 404 "not found": re-run search_facilities. Gated: give human_url to your human.

Input Schema

Name	Required	Description
`id`	No	Alias for facility_id — a facility id/slug from a prior search result
`name`	No	Facility name as a fallback lookup when no id/slug is known, e.g. "QTS Ashburn"
`slug`	No	Facility slug from a prior search result, e.g. digital-realty-digital-realty-iad38-ashburn-5754e62d
`facility_id`	No	Facility id from a prior search_facilities/search result (numeric or string), e.g. equinix-dc1-ashburn
`include_power`	No	Include power capacity detail (total/used MW) in the response (default true)
`include_nearby`	No	Include peer facilities near this one in the response (default true)

Output Schema

Name	Required	Description	Default
`data`	No
`cite_as`	No
`success`	No
`next_ask`	No
`preview_is_partial`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 31, 2026

changedInput schema / properties / slug / description

Previous value: -"Facility slug from a prior search result, e.g. digital-realty-iad8"New value: +"Facility slug from a prior search result, e.g. digital-realty-digital-realty-iad38-ashburn-5754e62d"

Changed7 schema fields changedOct 19, 2026
- removedOutput schema / properties / _entity
```
Removed value: -{
-  "type": "string"
-}
```
- removedOutput schema / properties / _front_door
```
Removed value: -{
-  "type": "object"
-}
```
- removedOutput schema / properties / _return_loop
```
Removed value: -{
-  "type": "object"
-}
```
- removedOutput schema / properties / citation
```
Removed value: -{}
```
- removedOutput schema / properties / provenance
```
Removed value: -{
-  "type": "object"
-}
```
- removedOutput schema / properties / quota
```
Removed value: -{
-  "type": "object"
-}
```
- removedOutput schema / properties / site_evaluation_handoff
```
Removed value: -{}
```

Changed27 schema fields changedOct 18, 2026

changedOutput schema / additionalProperties
```
Previous value: -{}New value: +true
```

removedOutput schema / properties / _entity / description

Removed value: -"Payload class (facility|market|iso_grid|queue_results|deal|report|response); branch on it."

removedOutput schema / properties / _front_door / additionalProperties
```
Removed value: -{}
```

removedOutput schema / properties / _front_door / description

Removed value: -"First-tool hint: plan_query(intent) returns the ordered plan."

removedOutput schema / properties / _front_door / properties
```
Removed value: -{}
```
removedOutput schema / properties / _return_loop / additionalProperties
```
Removed value: -{}
```
removedOutput schema / properties / _return_loop / description
```
Removed value: -"Next-session delta call (get_changes)."
```
removedOutput schema / properties / _return_loop / properties
```
Removed value: -{}
```

removedOutput schema / properties / citation / anyOf

Removed value: -[
-  {
-    "additionalProperties": {},
-    "properties": {},
-    "type": "object"
-  },
-  {
-    "type": "string"
-  }
-]

removedOutput schema / properties / citation / description

Removed value: -"How to attribute DC Hub: {source, url, license, cite_as, retrieved_at}, or the attribution line as a string."

removedOutput schema / properties / cite_as / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

removedOutput schema / properties / cite_as / description
```
Removed value: -"Ready-made attribution line"
```
removedOutput schema / properties / data / description
```
Removed value: -"ONE facility"
```

removedOutput schema / properties / next_ask / anyOf

Removed value: -[
-  {
-    "additionalProperties": {},
-    "properties": {},
-    "type": "object"
-  },
-  {
-    "type": "null"
-  }
-]

removedOutput schema / properties / next_ask / description
```
Removed value: -"Suggested follow-up"
```

removedOutput schema / properties / preview_is_partial / anyOf

Removed value: -[
-  {
-    "type": "boolean"
-  },
-  {
-    "type": "null"
-  }
-]

removedOutput schema / properties / preview_is_partial / description
```
Removed value: -"true when the tier withheld fields"
```
removedOutput schema / properties / provenance / additionalProperties
```
Removed value: -{}
```

removedOutput schema / properties / provenance / description

Removed value: -"Source, method, as_of, verification_counts, license, cite_as; quote it when citing."

removedOutput schema / properties / provenance / properties
```
Removed value: -{}
```
removedOutput schema / properties / quota / additionalProperties
```
Removed value: -{}
```

removedOutput schema / properties / quota / description

Removed value: -"Caller quota state (remaining calls, tier)."

removedOutput schema / properties / quota / properties
```
Removed value: -{}
```

removedOutput schema / properties / site_evaluation_handoff / anyOf

Removed value: -[
-  {
-    "items": {
-      "additionalProperties": {},
-      "properties": {},
-      "type": "object"
-    },
-    "type": "array"
-  },
-  {
-    "additionalProperties": {},
-    "properties": {},
-    "type": "object"
-  }
-]

removedOutput schema / properties / site_evaluation_handoff / description

Removed value: -"Follow-up calls [{tool, parameters, why}] when the payload carries coordinates."

removedOutput schema / properties / success / anyOf

Removed value: -[
-  {
-    "type": "boolean"
-  },
-  {
-    "type": "null"
-  }
-]

removedOutput schema / properties / success / description
```
Removed value: -"true when the lookup executed"
```

AddedOct 9, 2026
RemovedSep 29, 2026

Changed1 schema field changedSep 20, 2026

addedInput schema / anyOf

Added value: +[
+  {
+    "properties": {
+      "facility_id": {}
+    },
+    "required": [
+      "facility_id"
+    ]
+  },
+  {
+    "properties": {
+      "id": {}
+    },
+    "required": [
+      "id"
+    ]
+  },
+  {
+    "properties": {
+      "slug": {}
+    },
+    "required": [
+      "slug"
+    ]
+  },
+  {
+    "properties": {
+      "name": {}
+    },
+    "required": [
+      "name"
+    ]
+  }
+]

Changed2 schema fields changedAug 21, 2026

removedInput schema / $schema

Removed value: -"http://json-schema.org/draft-07/schema#"

removedOutput schema / $schema

Removed value: -"http://json-schema.org/draft-07/schema#"

Changed5 schema fields changedAug 11, 2026

removedOutput schema / properties / citation / additionalProperties
```
Removed value: -{}
```

addedOutput schema / properties / citation / anyOf

Added value: +[
+  {
+    "additionalProperties": {},
+    "properties": {},
+    "type": "object"
+  },
+  {
+    "type": "string"
+  }
+]

changedOutput schema / properties / citation / description

Previous value: -"Machine-readable citation: how to attribute DC Hub (dchub.cloud) for this payload."New value: +"Machine-readable citation: how to attribute DC Hub (dchub.cloud) for this payload. Normally an OBJECT {source, url, license, cite_as, retrieved_at}; a bare string is accepted and carries the attribution line itself."

removedOutput schema / properties / citation / properties
```
Removed value: -{}
```
removedOutput schema / properties / citation / type
```
Removed value: -"object"
```

Changed1 schema field changedJul 21, 2026

addedOutput schema / properties / _front_door

Added value: +{
+  "additionalProperties": {},
+  "description": "In-band front-door hint (first workflow-entry tool of a session): call plan_query(intent) first for the ordered multi-step plan.",
+  "properties": {},
+  "type": "object"
+}

Changed5 schema fields changedJul 18, 2026

removedOutput schema / properties / site_evaluation_handoff / additionalProperties
```
Removed value: -{}
```

addedOutput schema / properties / site_evaluation_handoff / anyOf

Added value: +[
+  {
+    "items": {
+      "additionalProperties": {},
+      "properties": {},
+      "type": "object"
+    },
+    "type": "array"
+  },
+  {
+    "additionalProperties": {},
+    "properties": {},
+    "type": "object"
+  }
+]

changedOutput schema / properties / site_evaluation_handoff / description

Previous value: -"Pre-built follow-up call (analyze_site / get_water_risk args) when the payload carries coordinates."New value: +"Pre-built follow-up calls (analyze_site / get_water_risk args) when the payload carries coordinates — an array of {tool, parameters, why} entries."

removedOutput schema / properties / site_evaluation_handoff / properties
```
Removed value: -{}
```
removedOutput schema / properties / site_evaluation_handoff / type
```
Removed value: -"object"
```

Changed1 schema field changedJul 17, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": {},
+  "description": "DC Hub envelope: structuredContent mirrors the JSON payload in content[0].text — tool-specific data fields ride at the top level alongside these envelope keys.",
+  "properties": {
+    "_entity": {
+      "description": "Payload class discriminator (e.g. facility|market|iso_grid|queue_results|deal|report|response) — branch on this before parsing the rest.",
+      "type": "string"
+    },
+    "_return_loop": {
+      "additionalProperties": {},
+      "description": "Suggested next-session delta call (get_changes since=24h) so you pull only what changed.",
+      "properties": {},
+      "type": "object"
+    },
+    "citation": {
+      "additionalProperties": {},
+      "description": "Machine-readable citation: how to attribute DC Hub (dchub.cloud) for this payload.",
+      "properties": {},
+      "type": "object"
+    },
+    "provenance": {
+      "additionalProperties": {},
+      "description": "Collection-level provenance block: {source, method, as_of, verification_counts, cite_url_template, license, cite_as}. Quote the verification level when citing.",
+      "properties": {},
+      "type": "object"
+    },
+    "quota": {
+      "additionalProperties": {},
+      "description": "Caller quota state (remaining calls, tier) when available.",
+      "properties": {},
+      "type": "object"
+    },
+    "site_evaluation_handoff": {
+      "additionalProperties": {},
+      "description": "Pre-built follow-up call (analyze_site / get_water_risk args) when the payload carries coordinates.",
+      "properties": {},
+      "type": "object"
+    }
+  },
+  "type": "object"
+}

Changed6 schema fields changedJul 2, 2026

addedInput schema / properties / facility_id / description

Added value: +"Facility id from a prior search_facilities/search result (numeric or string), e.g. equinix-dc1-ashburn"

addedInput schema / properties / id / description

Added value: +"Alias for facility_id — a facility id/slug from a prior search result"

addedInput schema / properties / include_nearby / description

Added value: +"Include peer facilities near this one in the response (default true)"

addedInput schema / properties / include_power / description

Added value: +"Include power capacity detail (total/used MW) in the response (default true)"

addedInput schema / properties / name / description

Added value: +"Facility name as a fallback lookup when no id/slug is known, e.g. \"QTS Ashburn\""

addedInput schema / properties / slug / description

Added value: +"Facility slug from a prior search result, e.g. digital-realty-iad8"

Changed3 schema fields changedJul 2, 2026

addedInput schema / properties / id

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "number"
+    }
+  ]
+}

addedInput schema / properties / name
```
Added value: +{
+  "type": "string"
+}
```
addedInput schema / properties / slug
```
Added value: +{
+  "type": "string"
+}
```

Changed2 schema fields changedMay 3, 2026
- addedInput schema / properties / facility_id / anyOf
```
Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "number"
+  }
+]
```
- removedInput schema / properties / facility_id / type
```
Removed value: -"string"
```

Changed9 schema fields changedApr 29, 2026

addedInput schema / $schema

Added value: +"http://json-schema.org/draft-07/schema#"

removedInput schema / properties / facility_id / default
```
Removed value: -""
```
removedInput schema / properties / facility_id / title
```
Removed value: -"Facility Id"
```
removedInput schema / properties / include_nearby / default
```
Removed value: -false
```
removedInput schema / properties / include_nearby / title
```
Removed value: -"Include Nearby"
```
removedInput schema / properties / include_power / default
```
Removed value: -false
```
removedInput schema / properties / include_power / title
```
Removed value: -"Include Power"
```
removedInput schema / title
```
Removed value: -"get_facilityArguments"
```

changedOutput schema / (root)

Previous value: -{
-  "properties": {
-    "result": {
-      "title": "Result",
-      "type": "string"
-    }
-  },
-  "required": [
-    "result"
-  ],
-  "title": "get_facilityOutput",
-  "type": "object"
-}New value: +null

Changed1 schema field changedApr 18, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "result": {
+      "title": "Result",
+      "type": "string"
+    }
+  },
+  "required": [
+    "result"
+  ],
+  "title": "get_facilityOutput",
+  "type": "object"
+}

Changed1 schema field changedApr 11, 2026

changedOutput schema / (root)

Previous value: -{
-  "properties": {
-    "result": {
-      "title": "Result",
-      "type": "string"
-    }
-  },
-  "required": [
-    "result"
-  ],
-  "title": "get_facilityOutput",
-  "type": "object"
-}New value: +null

Changed1 schema field changedMar 31, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "result": {
+      "title": "Result",
+      "type": "string"
+    }
+  },
+  "required": [
+    "result"
+  ],
+  "title": "get_facilityOutput",
+  "type": "object"
+}

Changed1 schema field changedMar 26, 2026

changedOutput schema / (root)

Previous value: -{
-  "properties": {
-    "result": {
-      "title": "Result",
-      "type": "string"
-    }
-  },
-  "required": [
-    "result"
-  ],
-  "title": "get_facilityOutput",
-  "type": "object"
-}New value: +null

First observedMar 6, 2026

TDQS

A4.8/5.0

Behavior5/5

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

Annotations already cover the read-only/idempotent/non-destructive profile, and the description adds traits beyond them: single-record scope ("Returns ONE facility in full"), a 404 not-found recovery loop, and the gating behavior ("Gated: give human_url to your human") which the agent could not learn from the schema. This is exactly the kind of operational context annotations cannot express.

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

Conciseness4/5

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

The routing constraint and single-vs-many distinction are front-loaded in useful order, and every sentence carries operational content. The long field enumeration is dense but justified by the 'tell me everything about this facility' use case, though it makes the opener heavier than strictly needed.

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?

For a single-entity lookup with six optional/aliased params, full schema coverage, and a declared output schema, the description covers scope, prerequisites, failure handling, and gating. There is no material gap an agent would hit on invocation.

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

Parameters4/5

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

Schema coverage is 100% and the schema already explains facility_id/slug/name aliases, so the baseline is 3. The description earns a point above baseline by supplying concrete call syntax examples (equinix-dc1-ashburn, the long digital-realty slug) and reinforcing that identifiers must come from search_facilities. The two include_* toggles are left entirely to 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?

The description opens with a specific verb+resource (fetch one data center facility) and enumerates exactly which fields come back, so an agent knows the payload shape before calling. It explicitly contrasts with the sibling search_facilities for multi-result queries, making it unambiguous.

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

Usage Guidelines5/5

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

It states when to use it ("when the user asks about one data center facility"), when not to ("do NOT use to search or list many facilities (use search_facilities)"), plus the prerequisite ("Needs a slug or id from search_facilities") and the recovery path for a 404. Nothing is left to inference.

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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Input Schema

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Schema Changelog

TDQS

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