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User Prompt

“Write an RFI about the duct conflict with the beam at grid B-3 on level 2.”

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Tool Call Sequence

1

Get the duct at grid B-3

Call: Query
{
  "entity": "feature",
  "project_id": "proj_oak",
  "grid_intersection": "B-3",
  "type": "duct"
}
Response:
{
  "count": 1,
  "items": [
    {
      "id": "ftr_duct_01",
      "type": "duct",
      "label": "24x12 SA",
      "uri": "storage://features/ftr_duct_01/crop.png",
      "block": { "id": "blk_m201_plan", "type": "Plan", "identifier": "1", "sheet_number": "M-201" },
      "metadata": { "size": "24x12", "system": "SA", "elevation_cl": "11'-0\"", "elevation_bottom": "10'-6\"" },
      "relations": []
    }
  ]
}
2

Get the beam at grid B-3

Call: Query
{
  "entity": "feature",
  "project_id": "proj_oak",
  "grid_intersection": "B-3",
  "type": "beam"
}
Response:
{
  "count": 1,
  "items": [
    {
      "id": "ftr_beam_01",
      "type": "beam",
      "label": "W16x40",
      "uri": "storage://features/ftr_beam_01/crop.png",
      "block": { "id": "blk_s201_plan", "type": "Plan", "identifier": "1", "sheet_number": "S-201" },
      "metadata": { "designation": "W16x40", "elevation_top": "11'-2\"", "elevation_bottom": "9'-10\"" },
      "relations": []
    }
  ]
}
What the agent learns so far: The duct bottom (10’-6”) is below the beam top (11’-2”) — they physically overlap by 8 inches. The agent has sheet references for both elements.
3

Check relevant general notes

Call: Query
{
  "entity": "block",
  "project_id": "proj_oak",
  "sheet_number": "M-201",
  "type": "GeneralNotes",
  "include": ["ocr"]
}
Response:
{
  "count": 1,
  "items": [
    {
      "id": "blk_m201_notes",
      "type": "GeneralNotes",
      "name": "MECHANICAL GENERAL NOTES",
      "sheet": { "id": "sh_m201", "sheet_number": "M-201", "discipline": "M" },
      "ocr": "1. All ductwork shall maintain minimum 2\" clearance from structure.\n2. Duct hangers per SMACNA standards.\n3. Coordinate all MEP routing with structural prior to installation.\n..."
    }
  ]
}
What the agent learns: General Note 1 requires 2” clearance from structure. The duct-beam overlap violates this requirement.
4

Get reference images

Call: ViewImage (x2, in parallel)
{ "uri": "storage://features/ftr_duct_01/crop.png" }

{ "uri": "storage://features/ftr_beam_01/crop.png" }
Response:
{ "url": "https://cdn.bedrock.cv/signed/ftr_duct_01.png?token=...", "expires_in": 900 }

{ "url": "https://cdn.bedrock.cv/signed/ftr_beam_01.png?token=...", "expires_in": 900 }

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Agent Response

RFI #___ Subject: Duct/Beam Conflict at Grid B-3, Level 2 Reference Drawings:
  • M-201: Mechanical Level 2 Plan (24x12 SA duct, CL EL 11’-0”)
  • S-201: Structural Level 2 Plan (W16x40 beam, T.O.S. 11’-2”, B.O.S. 9’-10”)
Description: The 24x12 supply air duct shown on M-201 at grid intersection B-3 conflicts with the W16x40 steel beam shown on S-201 at the same location. The duct bottom elevation (10’-6”) is 8” below the beam top elevation (11’-2”), creating a physical overlap. Per Mechanical General Note 1 on M-201, all ductwork shall maintain a minimum 2” clearance from structure. The current routing violates this requirement. Requested Action: Please advise on one of the following resolutions:
  1. Reroute the duct below the beam (requires minimum 9’-8” ceiling clearance confirmation)
  2. Provide a beam penetration detail if duct can pass through the web
  3. Resize the duct to fit above the beam flange

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Summary

MetricValue
Tool calls5
Tools usedQuery (feature, x2) > Query (block) > ViewImage (x2)
Key techniqueThe agent gathers all context in 3 data calls: conflicting features with elevations, applicable notes with clearance requirements, and reference images. The RFI text — conflict description, code citation, resolution options — is the agent’s domain reasoning, not MCP output.