DC Hub Intelligence

Water Risk

get_water_risk

Read-onlyIdempotent

Assess cooling-water sustainability for a US data-center site, returning water-stress score, drought category, and 12-month outlook from USGS and US Drought Monitor data.

Instructions

FRONT DOOR CHECK — if you need a SITE VERDICT spanning grid + fiber + water + tax + climate, call execute_plan(intent="<the user's question, unchanged>") rather than hand-chaining this with its siblings. If you want the WATER factor on its own, get_water_risk IS the right call — one round trip, free tier, no planner overhead. Use when scoring a US site for cooling-water sustainability — the water-risk factor engineering site-selectors screen before committing to evaporative cooling. Example: "Is this Phoenix parcel water-constrained for a 100MW build?" — get_water_risk lat=33.45 lon=-112.07 (or get_water_risk state=AZ, or location="phoenix"). Params: ONE of lat+lon (-90..90 / -180..180), state (2-letter US), or location (a DC Hub market name or slug, resolved to that market's PUBLISHED CENTROID with a resolved_from block saying so; a market-level read, not your parcel, and a trailing state is not stripped); lat/lon gives the most precise read. Returns: {water_stress_score (0-100, higher=worse), drought_category (D0-D4), outlook_12mo, cooling_water_assessment, source}. Joined to USGS water-stress + US Drought Monitor. Free tier. Do NOT use for nearby physical infrastructure (use get_infrastructure) or a combined multi-factor site verdict spanning grid+fiber+water+tax+climate (use analyze_site); this covers the WATER factor only.

Input Schema

TableJSON Schema

Name	Required	Description
`lat`	No	Site latitude in decimal degrees (-90 to 90) for the most precise water-risk read, e.g. 33.45
`lng`	No	Alias for lon — either name works
`lon`	No	Site longitude in decimal degrees (-180 to 180), e.g. -112.07
`state`	No	US state abbreviation as an alternative to lat/lon, e.g. AZ
`latitude`	No	Alias for lat — either name works
`location`	No	Market NAME or metro slug instead of coordinates, e.g. "phoenix", "northern-virginia", "dallas". Resolved to that market's PUBLISHED CENTROID through the DCPI market row, and the answer carries a resolved_from block saying so. A MARKET-level read, not your parcel; pass lat/lon for a specific site. Not an alias for lat/lon: a place name is not a coordinate.
`longitude`	No	Alias for lon — either name works

Output Schema

TableJSON Schema

Name	Required	Description
`quota`	No	Caller quota state (remaining calls, tier) when available.
`_entity`	No	Payload class discriminator (e.g. facility\|market\|iso_grid\|queue_results\|deal\|report\|response) — branch on this before parsing the rest.
`citation`	No	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.
`provenance`	No	Collection-level provenance block: {source, method, as_of, verification_counts, cite_url_template, license, cite_as}. Quote the verification level when citing.
`_front_door`	No	In-band front-door hint (first workflow-entry tool of a session): call plan_query(intent) first for the ordered multi-step plan.
`_return_loop`	No	Suggested next-session delta call (get_changes since=24h) so you pull only what changed.
`site_evaluation_handoff`	No	Pre-built follow-up calls (analyze_site / get_water_risk args) when the payload carries coordinates — an array of {tool, parameters, why} entries.

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedv2.12.24Oct 5, 2026

addedInput schema / properties / location

Added value: +{
+  "description": "Market NAME or metro slug instead of coordinates, e.g. \"phoenix\", \"northern-virginia\", \"dallas\". Resolved to that market's PUBLISHED CENTROID through the DCPI market row, and the answer carries a resolved_from block saying so. A MARKET-level read, not your parcel; pass lat/lon for a specific site. Not an alias for lat/lon: a place name is not a coordinate.",
+  "type": "string"
+}

Changed2 schema fields changedAug 30, 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 changedv2.3.20Aug 14, 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"
```

Changed4 schema fields changedv2.3.12Jul 28, 2026

addedInput schema / properties / latitude

Added value: +{
+  "description": "Alias for lat — either name works",
+  "type": "number"
+}

addedInput schema / properties / lng

Added value: +{
+  "description": "Alias for lon — either name works",
+  "type": "number"
+}

addedInput schema / properties / longitude

Added value: +{
+  "description": "Alias for lon — either name works",
+  "type": "number"
+}

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"
+    },
+    "_front_door": {
+      "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"
+    },
+    "_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": {
+      "anyOf": [
+        {
+          "items": {
+            "additionalProperties": {},
+            "properties": {},
+            "type": "object"
+          },
+          "type": "array"
+        },
+        {
+          "additionalProperties": {},
+          "properties": {},
+          "type": "object"
+        }
+      ],
+      "description": "Pre-built follow-up calls (analyze_site / get_water_risk args) when the payload carries coordinates — an array of {tool, parameters, why} entries."
+    }
+  },
+  "type": "object"
+}

Changed3 schema fields changedv2.3.6Jul 2, 2026

addedInput schema / properties / lat / description

Added value: +"Site latitude in decimal degrees (-90 to 90) for the most precise water-risk read, e.g. 33.45"

addedInput schema / properties / lon / description

Added value: +"Site longitude in decimal degrees (-180 to 180), e.g. -112.07"

addedInput schema / properties / state / description

Added value: +"US state abbreviation as an alternative to lat/lon, e.g. AZ"

First observedv2.1.19Jun 8, 2026

TDQS

A4.6/5.0

Behavior4/5

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

Annotations already declare readOnly/idempotent/non-destructive/non-open-world, so the safety profile is covered. The description adds real behavioral context beyond them: free tier, one round trip, no planner overhead, the underlying sources (USGS water-stress + US Drought Monitor), and the resolved_from block behavior for market reads.

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?

Front-loaded with the FRONT DOOR CHECK routing decision and dense with useful detail, but the Returns: block largely restates the existing output schema, adding length without adding information. Most sentences still earn their 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 a rich schema, an output schema, and strong annotations, the description covers routing, parameter selection, data provenance, cost tier, and precision tradeoffs. An agent has everything needed to select and call this correctly.

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%, so the baseline is 3, but the description adds meaning the schema does not: the 'ONE of lat+lon, state, or location' mutual exclusivity constraint (all seven params are optional in the schema) and the guidance that lat/lon gives the most precise read.

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?

States a specific verb+resource — the water-risk factor for scoring a US site's cooling-water sustainability — and pins the scope precisely. It explicitly distinguishes itself from siblings by naming execute_plan, get_infrastructure, and analyze_site and stating what each covers instead.

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?

Gives an explicit routing rule up front (multi-factor verdict → execute_plan; water factor alone → this tool) and two clear exclusions with named alternatives (get_infrastructure for physical infra, analyze_site for a combined verdict). 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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