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DC Hub: Data Center, Power Grid & Energy Intelligence

Analyze Site

analyze_site
Read-onlyIdempotent

Score any data center site by coordinates or market to get a 0-100 suitability verdict with power, gas, fiber, market and risk sub-scores, nearby infrastructure and power cost.

Instructions

Use this when the user asks whether a specific site or coordinate works for a data center (lat/lon, or a market name for a market-level read). 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, the power band, the weakest factor and counts; a free key adds factor bands, substation distance bands and a few free full site reports each month; other scores and figures need a paid DC Hub plan. When a result is partial, show your user the human_message (or for_your_human) text and its link. Ex: "Score 33.45,-112.07 for 100 MW." Needs BOTH lat and lon in decimal degrees (else missing_coordinates); take them from get_facility or search_facilities.

Input 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.
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).
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

NameRequiredDescriptionDefault
fiberNo
lockedNo
nearbyNo
scoresNo
previewNo
verdictNo
locationNo
power_costNo
overall_scoreNo
site_headlineNo
interpretationNo
composite_scoreNo
limiting_factorNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed36 schema fields changedv2.12.45
    • changedInput schema / properties / candidate_id / description
      Previous value: -"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"New value: +"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)."
    • changedInput schema / properties / location / description
      Previous value: -"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."New value: +"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."
    • changedOutput schema / additionalProperties
      Previous value: -{}New value: +true
    • removedOutput schema / description
      Removed value: -"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."
    • removedOutput schema / properties / _entity
      Removed value: -{
      -  "description": "Payload class (facility|market|iso_grid|queue_results|deal|report|response); branch on it.",
      -  "type": "string"
      -}
    • removedOutput schema / properties / _front_door
      Removed value: -{
      -  "additionalProperties": {},
      -  "description": "First-tool hint: plan_query(intent) returns the ordered plan.",
      -  "properties": {},
      -  "type": "object"
      -}
    • removedOutput schema / properties / _return_loop
      Removed value: -{
      -  "additionalProperties": {},
      -  "description": "Next-session delta call (get_changes).",
      -  "properties": {},
      -  "type": "object"
      -}
    • removedOutput schema / properties / citation
      Removed value: -{
      -  "anyOf": [
      -    {
      -      "additionalProperties": {},
      -      "properties": {},
      -      "type": "object"
      -    },
      -    {
      -      "type": "string"
      -    }
      -  ],
      -  "description": "How to attribute DC Hub: {source, url, license, cite_as, retrieved_at}, or the attribution line as a string."
      -}
    • removedOutput schema / properties / composite_score / anyOf
      Removed value: -[
      -  {
      -    "anyOf": [
      -      {
      -        "type": "number"
      -      },
      -      {
      -        "type": "string"
      -      }
      -    ]
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • removedOutput schema / properties / composite_score / description
      Removed value: -"0-100 composite site suitability score (free HEADLINE tier and full tier)"
    • removedOutput schema / properties / fiber / anyOf
      Removed value: -[
      -  {
      -    "additionalProperties": {},
      -    "properties": {},
      -    "type": "object"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • removedOutput schema / properties / fiber / description
      Removed value: -"Fiber read: {connectivity_score, nearest_carrier_km, near_net_bucket, top_carriers[], single_carrier_risk} (full payload)"
    • removedOutput schema / properties / interpretation / anyOf
      Removed value: -[
      -  {
      -    "type": "string"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • removedOutput schema / properties / interpretation / description
      Removed value: -"Verdict prose on the full payload"
    • removedOutput schema / properties / limiting_factor / anyOf
      Removed value: -[
      -  {
      -    "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"
      -  }
      -]
    • removedOutput schema / properties / limiting_factor / description
      Removed value: -"Single top limiting factor (the lowest sub-score) — always present on the free headline"
    • removedOutput schema / properties / location / description
      Removed value: -"Echo of the analyzed location (full payload)"
    • removedOutput schema / properties / locked / anyOf
      Removed value: -[
      -  {
      -    "additionalProperties": {},
      -    "properties": {},
      -    "type": "object"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • removedOutput schema / properties / locked / description
      Removed value: -"Which sections are locked to a paid plan on the free headline: {per_factor_breakdown, nearby_infrastructure, power_cost, fiber_carriers, site_analysis_report}"
    • removedOutput schema / properties / nearby / anyOf
      Removed value: -[
      -  {
      -    "additionalProperties": {},
      -    "properties": {},
      -    "type": "object"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • removedOutput schema / properties / nearby / description
      Removed value: -"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)"
    • removedOutput schema / properties / overall_score / anyOf
      Removed value: -[
      -  {
      -    "anyOf": [
      -      {
      -        "type": "number"
      -      },
      -      {
      -        "type": "string"
      -      }
      -    ]
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • removedOutput schema / properties / overall_score / description
      Removed value: -"Alias of composite_score on the full payload"
    • removedOutput schema / properties / power_cost / anyOf
      Removed value: -[
      -  {
      -    "additionalProperties": {},
      -    "properties": {},
      -    "type": "object"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • removedOutput schema / properties / power_cost / description
      Removed value: -"Power cost read: {industrial_cents_kwh, commercial_cents_kwh, period, basis} (full payload)"
    • removedOutput schema / properties / preview / anyOf
      Removed value: -[
      -  {
      -    "type": "string"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • removedOutput schema / properties / preview / description
      Removed value: -"Headline preview line (free tier)"
    • removedOutput schema / properties / provenance
      Removed value: -{
      -  "additionalProperties": {},
      -  "description": "Source, method, as_of, verification_counts, license, cite_as; quote it when citing.",
      -  "properties": {},
      -  "type": "object"
      -}
    • removedOutput schema / properties / quota
      Removed value: -{
      -  "additionalProperties": {},
      -  "description": "Caller quota state (remaining calls, tier).",
      -  "properties": {},
      -  "type": "object"
      -}
    • removedOutput schema / properties / scores / anyOf
      Removed value: -[
      -  {
      -    "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"
      -  }
      -]
    • removedOutput schema / properties / scores / description
      Removed value: -"Per-factor breakdown (full/paid payload)"
    • removedOutput schema / properties / site_evaluation_handoff
      Removed value: -{
      -  "anyOf": [
      -    {
      -      "items": {
      -        "additionalProperties": {},
      -        "properties": {},
      -        "type": "object"
      -      },
      -      "type": "array"
      -    },
      -    {
      -      "additionalProperties": {},
      -      "properties": {},
      -      "type": "object"
      -    }
      -  ],
      -  "description": "Follow-up calls [{tool, parameters, why}] when the payload carries coordinates."
      -}
    • removedOutput schema / properties / site_headline / anyOf
      Removed value: -[
      -  {
      -    "type": "boolean"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • removedOutput schema / properties / site_headline / description
      Removed value: -"true when this is the free citable HEADLINE (score + verdict + limiting factor)"
    • removedOutput schema / properties / verdict / anyOf
      Removed value: -[
      -  {
      -    "type": "string"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • removedOutput schema / properties / verdict / description
      Removed value: -"Verdict string, e.g. \"Excellent site\" / BUILD-CAUTION-AVOID read"
  2. Changed8 schema fields changedv2.12.43
    • changedOutput schema / properties / _entity / description
      Previous value: -"Payload class discriminator (e.g. facility|market|iso_grid|queue_results|deal|report|response) — branch on this before parsing the rest."New value: +"Payload class (facility|market|iso_grid|queue_results|deal|report|response); branch on it."
    • changedOutput schema / properties / _front_door / description
      Previous value: -"In-band front-door hint (first workflow-entry tool of a session): call plan_query(intent) first for the ordered multi-step plan."New value: +"First-tool hint: plan_query(intent) returns the ordered plan."
    • changedOutput schema / properties / _return_loop / description
      Previous value: -"Suggested next-session delta call (get_changes since=24h) so you pull only what changed."New value: +"Next-session delta call (get_changes)."
    • changedOutput schema / properties / citation / description
      Previous 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."New value: +"How to attribute DC Hub: {source, url, license, cite_as, retrieved_at}, or the attribution line as a string."
    • changedOutput schema / properties / locked / description
      Previous value: -"Which sections are Pro-locked on the free headline: {per_factor_breakdown, nearby_infrastructure, power_cost, fiber_carriers, site_analysis_report}"New value: +"Which sections are locked to a paid plan on the free headline: {per_factor_breakdown, nearby_infrastructure, power_cost, fiber_carriers, site_analysis_report}"
    • changedOutput schema / properties / provenance / description
      Previous value: -"Collection-level provenance block: {source, method, as_of, verification_counts, cite_url_template, license, cite_as}. Quote the verification level when citing."New value: +"Source, method, as_of, verification_counts, license, cite_as; quote it when citing."
    • changedOutput schema / properties / quota / description
      Previous value: -"Caller quota state (remaining calls, tier) when available."New value: +"Caller quota state (remaining calls, tier)."
    • changedOutput schema / properties / site_evaluation_handoff / description
      Previous value: -"Pre-built follow-up calls (analyze_site / get_water_risk args) when the payload carries coordinates — an array of {tool, parameters, why} entries."New value: +"Follow-up calls [{tool, parameters, why}] when the payload carries coordinates."
  3. 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"
  4. Changed2 schema fields changed
    • removedInput schema / $schema
      Removed value: -"http://json-schema.org/draft-07/schema#"
    • removedOutput schema / $schema
      Removed value: -"http://json-schema.org/draft-07/schema#"
  5. Changed5 schema fields changedv2.3.20
    • removedOutput schema / properties / citation / additionalProperties
      Removed value: -{}
    • addedOutput schema / properties / citation / anyOf
      Added value: +[
      +  {
      +    "additionalProperties": {},
      +    "properties": {},
      +    "type": "object"
      +  },
      +  {
      +    "type": "string"
      +  }
      +]
    • changedOutput schema / properties / citation / description
      Previous value: -"Machine-readable citation: how to attribute DC Hub (dchub.cloud) for this payload."New value: +"Machine-readable citation: how to attribute DC Hub (dchub.cloud) for this payload. Normally an OBJECT {source, url, license, cite_as, retrieved_at}; a bare string is accepted and carries the attribution line itself."
    • removedOutput schema / properties / citation / properties
      Removed value: -{}
    • removedOutput schema / properties / citation / type
      Removed value: -"object"
  6. Changed4 schema fields changedv2.3.12
    • addedInput schema / properties / latitude
      Added value: +{
      +  "description": "Alias for lat — either name works",
      +  "type": "number"
      +}
    • addedInput schema / properties / lng
      Added value: +{
      +  "description": "Alias for lon — either name works",
      +  "type": "number"
      +}
    • addedInput schema / properties / longitude
      Added value: +{
      +  "description": "Alias for lon — either name works",
      +  "type": "number"
      +}
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
      +  "$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"
      +}
  7. 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"
  8. 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"
  9. First observedv2.1.19

TDQS

A4.3/5.0
Behavior5/5

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

Beyond the read-only/idempotent annotations, it discloses return contents, capacity_mw semantics that do not move overall_score, keyless/free/paid data limitations, partial-result human_message/link behavior, missing_coordinates errors, and frozen candidate_id fail-closed behavior. This adds substantial operational context.

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 description front-loads the use case and return contract, then covers key tiers, partial-result handling, and coordinate constraints. It is dense and somewhat long, but most sentences 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?

For a 12-parameter, zero-required tool with full schema coverage, annotations, and an output schema, the description covers input modes, auth/data tiers, error conditions, and result-handling. Nothing critical for correct invocation is missing.

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 schema already carries the baseline; the description adds important meaning for capacity_mw, candidate_id, location, and lat/lon requirements. It does not add much beyond schema for the include_* flags or state parameter.

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 and decision support: whether a site or coordinate works for a data center, with composite and sub-scores. It is clear, but it does not explicitly distinguish itself from close siblings such as score_facility, get_composite_site_score, or generate_site_analysis.

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?

Provides a clear trigger ('Use this when the user asks...'), coordinate sourcing from get_facility/search_facilities, candidate_id preference for queue survivors, and key-tier/partial-result handling. It lacks explicit when-not guidance or alternative routing versus rank_sites/compare_sites.

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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