Skip to main content
Glama
azmartone67

DC Hub: Data Center, Power Grid & Energy Intelligence

Find Sites

find_sites
Read-onlyIdempotent

Identify candidate data center search areas by substation voltage and nearby gas or fiber distance, using a state or lat/lon center when no site coordinates exist yet.

Instructions

Use this when the user has no data center site yet and wants candidate search areas (site selection by substation voltage, gas and fiber distance); execute_plan covers a multi-part siting question. THE INVERSE QUERY: every other DC Hub siting tool needs a coordinate you already have — analyze_site scores one, get_composite_site_score grades one, rank_sites orders candidates YOU already enriched, find_alternatives needs a seed facility. This one answers "where should I even be looking?". Returns candidate SEARCH AREAS anchored on real HIFLD substations at or above min_voltage_kv, spatially de-duplicated by cluster_km so a dense metro yields distinct areas instead of 40 near-identical rows, each carrying measured distance to the nearest gas pipeline and fiber route plus state-grain moratorium context, and a next_calls handoff. Answers "where should I even be looking for 200 MW in Ohio" and "which areas near Dallas sit on 230kV with gas within 5 miles". Try: find_sites state=OH min_voltage_kv=230 max_gas_km=8 — or find_sites lat=39.04 lon=-77.48 radius_km=60 min_voltage_kv=500.

Input Schema

NameRequiredDescriptionDefault
latNoLatitude of a search centre, e.g. 39.04 — use with lon (+ radius_km) instead of state
lngNoAlias for lon — either name works
lonNoLongitude of a search centre, e.g. -77.48
limitNoMax results to return (1-500; default varies by tool)
stateNo2-letter US state to search, e.g. OH — required unless you pass lat + lon
latitudeNoAlias for lat — either name works
longitudeNoAlias for lon — either name works
radius_kmNoSearch radius in km around lat/lon (default 80, clamped 5-400); ignored in state mode
cluster_kmNoCollapse anchors within this many km into one candidate area (default 8, max 100). Raise it for broader coverage, lower it for denser results
max_gas_kmNoDrop candidates farther than this from the nearest gas pipeline. Applied ONLY if the gas layer answers — check constraint_coverage
max_fiber_kmNoDrop candidates farther than this from the nearest fiber route (CHORD approximation — see fiber_distance_basis). Applied ONLY if the fiber layer answers
min_voltage_kvNoOnly anchor on substations at or above this voltage in kV (default 115). 230+ for hyperscale, 500 for the largest campuses
exclude_moratoriumNotrue = drop candidates in a state with a published data-center moratorium. STATE grain, not jurisdiction grain

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed9 schema fields changedv2.12.45
    • changedOutput schema / additionalProperties
      Previous value: -{}New value: +true
    • removedOutput schema / description
      Removed value: -"DC Hub envelope: tool data fields ride at the top level beside these 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 / 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 / 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."
      -}
  2. Changed8 schema fields changedv2.12.43
    • changedOutput schema / description
      Previous value: -"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."New value: +"DC Hub envelope: tool data fields ride at the top level beside these keys."
    • 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 / 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. Addedv2.12.10

TDQS

A4.8/5.0
Behavior5/5

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

Annotations already declare readOnly/idempotent/non-destructive, and the description goes well beyond them: it discloses spatial de-duplication by cluster_km (why a metro yields distinct areas instead of 40 near-identical rows), that gas/fiber filters apply ONLY when the layer answers, state-grain (not jurisdiction-grain) moratorium context, and a next_calls handoff.

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?

Purpose is front-loaded in the first clause and the content is dense with distinct facts, but the "THE INVERSE QUERY" paragraph is rhetorically padded ("where should I even be looking?") and the closing examples partly duplicate the schema's own examples.

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 13-param open-world search tool with an output schema present, the description covers everything an agent needs: trigger condition, alternative routing, output shape (search areas with distances and coverage caveats), and example invocations. Return-value detail is appropriately left to the output schema.

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 per-parameter docs are already detailed, so the baseline is 3. The description adds value by showing worked parameter combinations ("state=OH min_voltage_kv=230 max_gas_km=8" and "lat/lon radius_km=60 min_voltage_kv=500"), illustrating how the filters compose rather than restating definitions.

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 (find candidate data-center search areas) and pins down the mechanism (HIFLD substation anchors at/above min_voltage_kv, gas/fiber distances, cluster de-duplication). It explicitly contrasts itself with analyze_site, get_composite_site_score, rank_sites, find_alternatives and execute_plan, so an agent can disambiguate without opening any 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?

"Use this when the user has no data center site yet and wants candidate search areas" gives a clear entry condition, and it names the routing rule for multi-part siting questions (execute_plan). It frames the tool as the inverse of every coordinate-based sibling, effectively stating when NOT to use it.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Deploy Server

Other Tools