DC Hub

Generate Site Analysis

generate_site_analysis

Read-onlyIdempotent

Use when a user wants a SHAREABLE, branded multi-page Site Analysis PDF for ONE lat/lon (a powered-land parcel, a candidate campus) — the polished client deliverable, not just a score. Example: "Make the Site Analysis PDF for this Carrier Mills parcel, 150 MW, for TON Infrastructure." — generate_site_analysis lat=37.694 lon=-88.65 capacity_mw=150 prepared_for="TON Infrastructure" prepared_by="Martone Advisors". Params: lat (-90 to 90, required), lon (-180 to 180, required), capacity_mw (target load MW, e.g. 50-500), prepared_for (client name on the cover), prepared_by (your firm — brands the report; defaults to DC Hub), latency_target (optional metro override; default = nearest real carrier hotel). Returns: {survey:{verdict, power/transmission, gas, water, air-permitting, fiber carriers, latency-to-nearest-carrier-hotel, market, tax}, pdf_report_url}. pdf_report_url is a ready-to-open link to download the branded 5-page PDF — no login needed, valid ~7 days; hand it to your human. For just the numeric suitability score (no PDF), use analyze_site instead.

Input Schema

TableJSON Schema

Name	Required	Description
`lat`	No	Site latitude in decimal degrees (-90 to 90, required), e.g. 37.694
`lng`	No	Alias for lon — either name works
`lon`	No	Site longitude in decimal degrees (-180 to 180, required), e.g. -88.65
`latitude`	No	Alias for lat — either name works
`use_case`	No	Optional workload descriptor to tailor the report, e.g. "AI training campus"
`longitude`	No	Alias for lon — either name works
`capacity_mw`	No	Target power load for the build in megawatts (MW), e.g. 150 (typical 50-500)
`prepared_by`	No	Your firm name that brands the report; defaults to DC Hub, e.g. "Martone Advisors"
`prepared_for`	No	Client name printed on the report cover, e.g. "TON Infrastructure"
`latency_target`	No	Optional metro to measure latency against; default = nearest real carrier hotel

Output Schema

TableJSON Schema

Name	Required	Description
`quota`	No	Caller quota state (remaining calls, tier).
`_entity`	No	Payload class (facility\|market\|iso_grid\|queue_results\|deal\|report\|response); branch on it.
`citation`	No	How to attribute DC Hub: {source, url, license, cite_as, retrieved_at}, or the attribution line as a string.
`provenance`	No	Source, method, as_of, verification_counts, license, cite_as; quote it when citing.
`_front_door`	No	First-tool hint: plan_query(intent) returns the ordered plan.
`_return_loop`	No	Next-session delta call (get_changes).
`site_evaluation_handoff`	No	Follow-up calls [{tool, parameters, why}] when the payload carries coordinates.

Schema Changelog

Changes observed during successful MCP inspections.

AddedOct 9, 2026
RemovedSep 29, 2026

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"
+}

Changed3 schema fields changedJul 16, 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"
+}

Changed7 schema fields changedJul 2, 2026

addedInput schema / properties / capacity_mw / description

Added value: +"Target power load for the build in megawatts (MW), e.g. 150 (typical 50-500)"

addedInput schema / properties / lat / description

Added value: +"Site latitude in decimal degrees (-90 to 90, required), e.g. 37.694"

addedInput schema / properties / latency_target / description

Added value: +"Optional metro to measure latency against; default = nearest real carrier hotel"

addedInput schema / properties / lon / description

Added value: +"Site longitude in decimal degrees (-180 to 180, required), e.g. -88.65"

addedInput schema / properties / prepared_by / description

Added value: +"Your firm name that brands the report; defaults to DC Hub, e.g. \"Martone Advisors\""

addedInput schema / properties / prepared_for / description

Added value: +"Client name printed on the report cover, e.g. \"TON Infrastructure\""

addedInput schema / properties / use_case / description

Added value: +"Optional workload descriptor to tailor the report, e.g. \"AI training campus\""

AddedJun 27, 2026

TDQS

A4.6/5.0

Behavior5/5

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

Annotations already declare the safe read/idempotent profile, and the description layers on genuinely new context: the returned shape (survey verdict + pdf_report_url), that the URL needs no login and is valid ~7 days, and that it can be handed to a human. This is behavioral detail the annotations cannot carry.

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 trigger and the deliverable, followed by a concrete example invocation that reads naturally. It is dense but each element (example, params, returns, alternative) is useful; the explicit 'Params:' block mildly duplicates the schema, so not a perfect 5.

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-call report generator, the description covers the trigger, the full worked example, the parameters, and the return value, and even points to the fallback sibling. The output schema exists, so the return explanation is a bonus rather than a gap-filler, leaving nothing an agent needs missing.

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 the schema already documents every parameter, and the description's 'Params:' list largely restates those same ranges and defaults (capacity_mw 50-500, prepared_by defaults to DC Hub, latency_target default metro). The worked example adds marginal value but does not go much beyond the structured fields, so the baseline 3 holds.

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 and resource: generate a branded, multi-page Site Analysis PDF for ONE lat/lon. It immediately distinguishes the deliverable from a raw score and names the sibling that produces only the score. An agent can tell it apart from analyze_site without opening either schema.

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?

Opens with an explicit trigger ('Use when a user wants a SHAREABLE, branded... client deliverable, not just a score') and closes with the routing rule: 'For just the numeric suitability score (no PDF), use analyze_site instead.' When-to-use and the named alternative are both explicit.

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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