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DC Hub Intelligence

Analyze Site

analyze_site
Read-onlyIdempotent

Score a specific site or market for data center suitability. Returns a 0-100 composite, verdict, power/gas/fiber/risk sub-scores, nearby infrastructure and power cost.

Instructions

Use this whenever the user asks whether a specific site or coordinate works for a data center. Call when the user has one location (lat/lon, or a market name for a market-level read) and asks if it suits a data center. Returns a 0-100 composite, verdict, power/gas/fiber/market/risk sub-scores, nearby infrastructure and power cost; capacity_mw adds a capacity_context block and does NOT move overall_score. Keyless returns the verdict band and weakest factor; a free key adds factor bands and substation distance bands; scores and figures are Pro. Ex: "Score 33.45,-112.07 for 100 MW."

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
latNoSite latitude in decimal degrees (-90 to 90; required unless candidate_id or location given), e.g. 33.45
lngNoAlias for lon — either name works
lonNoSite longitude in decimal degrees (-180 to 180; required unless candidate_id or location given), e.g. -112.07
stateNoUS state abbreviation (optional) — improves the tax-incentive lookup, e.g. AZ
latitudeNoAlias for lat — either name works
locationNoMarket NAME or metro slug instead of coordinates, e.g. "ashburn", "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. This is a MARKET-level read, not the parcel you named — pass lat/lon for a specific site. Not an alias for lat/lon: a place name is not a coordinate.
longitudeNoAlias for lon — either name works
capacity_mwNoTarget power load for the build in megawatts (MW), e.g. 100 (typical 50-500)
candidate_idNoPREFERRED for queue survivors: a cand_… id from get_refined_queue — coordinates come from the FROZEN mint (lat/lon args are ignored; zero transcription drift; expired ids fail closed with candidate_expired). See dchub.cloud/docs/candidate-lifecycle
include_gridNoInclude grid-headroom / substation analysis (default true)
include_riskNoInclude water/drought/climate risk analysis (default true)
include_fiberNoInclude fiber-connectivity analysis (default true)

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
fiberNoFiber read: {connectivity_score, nearest_carrier_km, near_net_bucket, top_carriers[], single_carrier_risk} (full payload)
quotaNoCaller quota state (remaining calls, tier) when available.
lockedNoWhich sections are Pro-locked on the free headline: {per_factor_breakdown, nearby_infrastructure, power_cost, fiber_carriers, site_analysis_report}
nearbyNoNearby infrastructure counts: {substations_50km, power_plants_80km, gas_pipelines_50km, facilities_100km, fiber_carriers_in_state, generation_capacity_mw, total_capacity_mw} (full payload)
scoresNoPer-factor breakdown (full/paid payload)
_entityNoPayload class discriminator (e.g. facility|market|iso_grid|queue_results|deal|report|response) — branch on this before parsing the rest.
previewNoHeadline preview line (free tier)
verdictNoVerdict string, e.g. "Excellent site" / BUILD-CAUTION-AVOID read
citationNoMachine-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.
locationNoEcho of the analyzed location (full payload)
power_costNoPower cost read: {industrial_cents_kwh, commercial_cents_kwh, period, basis} (full payload)
provenanceNoCollection-level provenance block: {source, method, as_of, verification_counts, cite_url_template, license, cite_as}. Quote the verification level when citing.
_front_doorNoIn-band front-door hint (first workflow-entry tool of a session): call plan_query(intent) first for the ordered multi-step plan.
_return_loopNoSuggested next-session delta call (get_changes since=24h) so you pull only what changed.
overall_scoreNoAlias of composite_score on the full payload
site_headlineNotrue when this is the free citable HEADLINE (score + verdict + limiting factor)
interpretationNoVerdict prose on the full payload
composite_scoreNo0-100 composite site suitability score (free HEADLINE tier and full tier)
limiting_factorNoSingle top limiting factor (the lowest sub-score) — always present on the free headline
site_evaluation_handoffNoPre-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.

  1. Changed3 schema fields changedv2.12.6
    • changedInput schema / properties / lat / description
      Previous value: -"Site latitude in decimal degrees (-90 to 90; required unless candidate_id given), e.g. 33.45"New value: +"Site latitude in decimal degrees (-90 to 90; required unless candidate_id or location given), e.g. 33.45"
    • addedInput schema / properties / location
      Added value: +{
      +  "description": "Market NAME or metro slug instead of coordinates, e.g. \"ashburn\", \"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. This is a MARKET-level read, not the parcel you named — pass lat/lon for a specific site. Not an alias for lat/lon: a place name is not a coordinate.",
      +  "type": "string"
      +}
    • changedInput schema / properties / lon / description
      Previous value: -"Site longitude in decimal degrees (-180 to 180; required unless candidate_id given), e.g. -112.07"New value: +"Site longitude in decimal degrees (-180 to 180; required unless candidate_id or location given), e.g. -112.07"
  2. Changed2 schema fields changed
    • removedInput schema / $schema
      Removed value: -"http://json-schema.org/draft-07/schema#"
    • removedOutput schema / $schema
      Removed value: -"http://json-schema.org/draft-07/schema#"
  3. Changed5 schema fields changedv2.3.20
    • removedOutput schema / properties / citation / additionalProperties
      Removed value: -{}
    • addedOutput schema / properties / citation / anyOf
      Added value: +[
      +  {
      +    "additionalProperties": {},
      +    "properties": {},
      +    "type": "object"
      +  },
      +  {
      +    "type": "string"
      +  }
      +]
    • changedOutput schema / properties / citation / description
      Previous value: -"Machine-readable citation: how to attribute DC Hub (dchub.cloud) for this payload."New value: +"Machine-readable citation: how to attribute DC Hub (dchub.cloud) for this payload. Normally an OBJECT {source, url, license, cite_as, retrieved_at}; a bare string is accepted and carries the attribution line itself."
    • removedOutput schema / properties / citation / properties
      Removed value: -{}
    • removedOutput schema / properties / citation / type
      Removed value: -"object"
  4. Changed4 schema fields changedv2.3.12
    • addedInput schema / properties / latitude
      Added value: +{
      +  "description": "Alias for lat — either name works",
      +  "type": "number"
      +}
    • addedInput schema / properties / lng
      Added value: +{
      +  "description": "Alias for lon — either name works",
      +  "type": "number"
      +}
    • addedInput schema / properties / longitude
      Added value: +{
      +  "description": "Alias for lon — either name works",
      +  "type": "number"
      +}
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
      +  "$schema": "http://json-schema.org/draft-07/schema#",
      +  "additionalProperties": {},
      +  "description": "Multi-factor site suitability for one lat/lon: composite score + verdict (+ per-factor breakdown, nearby infra, power cost, fiber on paid) — alongside the DC Hub 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"
      +    },
      +    "composite_score": {
      +      "anyOf": [
      +        {
      +          "anyOf": [
      +            {
      +              "type": "number"
      +            },
      +            {
      +              "type": "string"
      +            }
      +          ]
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ],
      +      "description": "0-100 composite site suitability score (free HEADLINE tier and full tier)"
      +    },
      +    "fiber": {
      +      "anyOf": [
      +        {
      +          "additionalProperties": {},
      +          "properties": {},
      +          "type": "object"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ],
      +      "description": "Fiber read: {connectivity_score, nearest_carrier_km, near_net_bucket, top_carriers[], single_carrier_risk} (full payload)"
      +    },
      +    "interpretation": {
      +      "anyOf": [
      +        {
      +          "type": "string"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ],
      +      "description": "Verdict prose on the full payload"
      +    },
      +    "limiting_factor": {
      +      "anyOf": [
      +        {
      +          "additionalProperties": {},
      +          "properties": {
      +            "factor": {
      +              "anyOf": [
      +                {
      +                  "type": "string"
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ],
      +              "description": "The lowest-scoring factor"
      +            },
      +            "note": {
      +              "anyOf": [
      +                {
      +                  "type": "string"
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ],
      +              "description": "Why it limits the site"
      +            },
      +            "of": {
      +              "anyOf": [
      +                {
      +                  "anyOf": [
      +                    {
      +                      "type": "number"
      +                    },
      +                    {
      +                      "type": "string"
      +                    }
      +                  ]
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ],
      +              "description": "Scale maximum (100)"
      +            },
      +            "score": {
      +              "anyOf": [
      +                {
      +                  "anyOf": [
      +                    {
      +                      "type": "number"
      +                    },
      +                    {
      +                      "type": "string"
      +                    }
      +                  ]
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ],
      +              "description": "Its score"
      +            }
      +          },
      +          "type": "object"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ],
      +      "description": "Single top limiting factor (the lowest sub-score) — always present on the free headline"
      +    },
      +    "location": {
      +      "description": "Echo of the analyzed location (full payload)"
      +    },
      +    "locked": {
      +      "anyOf": [
      +        {
      +          "additionalProperties": {},
      +          "properties": {},
      +          "type": "object"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ],
      +      "description": "Which sections are Pro-locked on the free headline: {per_factor_breakdown, nearby_infrastructure, power_cost, fiber_carriers, site_analysis_report}"
      +    },
      +    "nearby": {
      +      "anyOf": [
      +        {
      +          "additionalProperties": {},
      +          "properties": {},
      +          "type": "object"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ],
      +      "description": "Nearby infrastructure counts: {substations_50km, power_plants_80km, gas_pipelines_50km, facilities_100km, fiber_carriers_in_state, generation_capacity_mw, total_capacity_mw} (full payload)"
      +    },
      +    "overall_score": {
      +      "anyOf": [
      +        {
      +          "anyOf": [
      +            {
      +              "type": "number"
      +            },
      +            {
      +              "type": "string"
      +            }
      +          ]
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ],
      +      "description": "Alias of composite_score on the full payload"
      +    },
      +    "power_cost": {
      +      "anyOf": [
      +        {
      +          "additionalProperties": {},
      +          "properties": {},
      +          "type": "object"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ],
      +      "description": "Power cost read: {industrial_cents_kwh, commercial_cents_kwh, period, basis} (full payload)"
      +    },
      +    "preview": {
      +      "anyOf": [
      +        {
      +          "type": "string"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ],
      +      "description": "Headline preview line (free tier)"
      +    },
      +    "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"
      +    },
      +    "scores": {
      +      "anyOf": [
      +        {
      +          "additionalProperties": {},
      +          "properties": {
      +            "fiber_connectivity": {
      +              "anyOf": [
      +                {
      +                  "anyOf": [
      +                    {
      +                      "type": "number"
      +                    },
      +                    {
      +                      "type": "string"
      +                    }
      +                  ]
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ],
      +              "description": "0-100"
      +            },
      +            "gas_pipeline_access": {
      +              "anyOf": [
      +                {
      +                  "anyOf": [
      +                    {
      +                      "type": "number"
      +                    },
      +                    {
      +                      "type": "string"
      +                    }
      +                  ]
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ],
      +              "description": "0-100"
      +            },
      +            "market_conditions": {
      +              "anyOf": [
      +                {
      +                  "anyOf": [
      +                    {
      +                      "type": "number"
      +                    },
      +                    {
      +                      "type": "string"
      +                    }
      +                  ]
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ],
      +              "description": "0-100"
      +            },
      +            "power_infrastructure": {
      +              "anyOf": [
      +                {
      +                  "anyOf": [
      +                    {
      +                      "type": "number"
      +                    },
      +                    {
      +                      "type": "string"
      +                    }
      +                  ]
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ],
      +              "description": "0-100"
      +            },
      +            "risk_resilience": {
      +              "anyOf": [
      +                {
      +                  "anyOf": [
      +                    {
      +                      "type": "number"
      +                    },
      +                    {
      +                      "type": "string"
      +                    }
      +                  ]
      +                },
      +                {
      +                  "type": "null"
      +                }
      +              ],
      +              "description": "0-100"
      +            }
      +          },
      +          "type": "object"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ],
      +      "description": "Per-factor breakdown (full/paid payload)"
      +    },
      +    "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."
      +    },
      +    "site_headline": {
      +      "anyOf": [
      +        {
      +          "type": "boolean"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ],
      +      "description": "true when this is the free citable HEADLINE (score + verdict + limiting factor)"
      +    },
      +    "verdict": {
      +      "anyOf": [
      +        {
      +          "type": "string"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ],
      +      "description": "Verdict string, e.g. \"Excellent site\" / BUILD-CAUTION-AVOID read"
      +    }
      +  },
      +  "type": "object"
      +}
  5. Changed3 schema fields changedv2.3.8
    • addedInput schema / properties / candidate_id
      Added value: +{
      +  "description": "PREFERRED for queue survivors: a cand_… id from get_refined_queue — coordinates come from the FROZEN mint (lat/lon args are ignored; zero transcription drift; expired ids fail closed with candidate_expired). See dchub.cloud/docs/candidate-lifecycle",
      +  "type": "string"
      +}
    • changedInput schema / properties / lat / description
      Previous value: -"Site latitude in decimal degrees (-90 to 90, required), e.g. 33.45"New value: +"Site latitude in decimal degrees (-90 to 90; required unless candidate_id given), e.g. 33.45"
    • changedInput schema / properties / lon / description
      Previous value: -"Site longitude in decimal degrees (-180 to 180, required), e.g. -112.07"New value: +"Site longitude in decimal degrees (-180 to 180; required unless candidate_id given), e.g. -112.07"
  6. Changed7 schema fields changedv2.3.6
    • addedInput schema / properties / capacity_mw / description
      Added value: +"Target power load for the build in megawatts (MW), e.g. 100 (typical 50-500)"
    • addedInput schema / properties / include_fiber / description
      Added value: +"Include fiber-connectivity analysis (default true)"
    • addedInput schema / properties / include_grid / description
      Added value: +"Include grid-headroom / substation analysis (default true)"
    • addedInput schema / properties / include_risk / description
      Added value: +"Include water/drought/climate risk analysis (default true)"
    • addedInput schema / properties / lat / description
      Added value: +"Site latitude in decimal degrees (-90 to 90, required), e.g. 33.45"
    • addedInput schema / properties / lon / description
      Added value: +"Site longitude in decimal degrees (-180 to 180, required), e.g. -112.07"
    • addedInput schema / properties / state / description
      Added value: +"US state abbreviation (optional) — improves the tax-incentive lookup, e.g. AZ"
  7. First observedv2.1.19

TDQS

A4.2/5.0
Behavior5/5

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

Even with readOnly/idempotent annotations already present, the description adds non-obvious behavior: the keyless/free-key/Pro tiering of what is returned, that capacity_mw adds capacity_context but does NOT move overall_score, and that candidate_id uses a frozen mint with expired ids failing closed. These are the kinds of traits annotations cannot convey.

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 condition, then returns, then access tiers, then an example. Dense but almost every clause carries information; the tiering sentence is slightly compressed and requires a second read but no sentence is pure filler.

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

Completeness4/5

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

With an output schema present, the description needn't enumerate return fields, yet it still sketches the payload, access tiers, and the capacity_mw caveat. Combined with 100% schema coverage and read-only annotations, an agent has what it needs; only explicit sibling routing is absent.

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, and the description genuinely adds meaning above the schema: capacity_mw's non-effect on score, candidate_id being preferred for queue survivors, and the market-centroid caveat for location. It stops short of explaining the include_* toggles, so it sits just above baseline.

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

Purpose4/5

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

States a specific verb+resource (analyze a site for data-center suitability) and enumerates the return payload (0-100 composite, verdict, sub-scores, nearby infrastructure, power cost). It scopes the input shape clearly, but never names the close siblings it differs from (analyze_parcel, get_composite_site_score, generate_site_analysis), leaving that differentiation to the agent.

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

Usage Guidelines4/5

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

"Call when the user has one location ... and asks if it suits a data center" gives a clear triggering context, and the location-vs-lat/lon distinction clarifies the two entry modes. There is no explicit when-not or sibling routing (e.g. use compare_sites for multiple sites), so the guidance is solid but not exhaustive.

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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