Initial commit: Conflict Checker

Cross-discipline design-contradiction checker for construction drawing sets. Standalone tool broken out from Iron_Bid; a pipeline stage may later fold back into Iron_Bid. Pipeline: PDF->images -> per-sheet assertion extraction -> deterministic clustering by location -> per-cluster reasoning -> report. Includes CLI (cli/run_check.py) and web UI (backend/main.py). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-03 00:22:02 +00:00
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+[{"rfi_id": "DEDUP-01", "issue_id": "DEDUP-01", "title": "Conflicting Building Code References", "background": "The drawing set references multiple, conflicting versions of the International Building Code (IBC). Sheet G21.01 references the 2018 IBC. Sheets E01.01, P03.01, A23.01, and G11.04 reference the 2021 IBC. It is understood that the applicable code for the jurisdiction is the 2015 IBC.", "question": "Please clarify the single, legally adopted IBC edition to be used for the project and revise all drawing sheets and design criteria for consistency.", "sheets_referenced": ["G21.01", "E01.01", "P03.01", "A23.01", "G11.04"], "disciplines_to_respond": ["General", "Electrical", "Plumbing", "Architectural"], "suggested_response_needed": "Response required prior to permit submission.", "priority": "high"}, {"rfi_id": "QAQC-002-M", "issue_id": "QAQC-002-M", "title": "Missing Structural Drawings for New Rooftop Loads", "background": "The drawing set does not include any Structural (S-series) sheets. New rooftop units (RTUs) are specified, which will impose new loads on the existing structure. Notes on sheets M03.01 ('RE: STRUCTURAL.') and E05.02 ('VERIFY SUPPORT SIZING AND DESIGNED WITH PROJECT STRUCTURAL ENGINEER') explicitly reference coordination with a structural engineer, but no structural design is provided.", "question": "Please provide the complete Structural drawing set, sealed by the engineer of record, detailing the analysis of the existing structure and the design for supporting all new equipment. Please also update the cover sheet consultant list.", "sheets_referenced": ["G01.01", "A25.01", "M03.01", "E05.02", "G11.01"], "disciplines_to_respond": ["Structural", "Architectural", "Mechanical", "Electrical"], "suggested_response_needed": "Response required immediately.", "priority": "high"}, {"rfi_id": "CBI-003", "issue_id": "CBI-003", "title": "Inadequate Structural Support Detail for Suspended Equipment", "background": "Heavy equipment, including an electrical transformer and an electric water heater (EWH-1), are shown to be suspended above the ceiling. The details improperly delegate the structural design to the field by stating 'VERIFY SUPPORT SIZING AND DESIGNED WITH PROJECT STRUCTURAL ENGINEER PRIOR TO ASSEMBLY' (Sheet E05.02 for transformer) and showing a generic, non-engineered support detail for the water heater (Detail 4/P03.01).", "question": "Please provide engineered structural details, signed and sealed by the structural engineer of record, for the suspension of the transformer and the water heater. Details must show connection to the building structure and specify all required framing, hardware, and components.", "sheets_referenced": ["E05.02", "P03.01"], "disciplines_to_respond": ["Structural", "Electrical", "Plumbing"], "suggested_response_needed": "Response required immediately due to life-safety implications.", "priority": "high"}, {"rfi_id": "QAQC-001-M", "issue_id": "QAQC-001-M", "title": "Missing Architectural and Mechanical Plan Sheets", "background": "Key plan sheets are missing from the drawing set. The sheet index indicates that pages 14 (likely Architectural Dimension/Construction Plan), 15 (Architectural Reflected Ceiling Plan), and 22 (Mechanical HVAC Plan) were not included in the set.", "question": "Please provide the missing plan sheets (A-Dimension Plan, A-Reflected Ceiling Plan, M-HVAC Plan) and update the sheet index accordingly.", "sheets_referenced": ["G11.01"], "disciplines_to_respond": ["Architectural", "Mechanical"], "suggested_response_needed": "Response required immediately as the set is incomplete for review or bidding.", "priority": "high"}, {"rfi_id": "verizon-elyson-002", "issue_id": "verizon-elyson-002", "title": "Potential ADA Compliance issue for Restroom Fixture Clearance", "background": "The plumbing fixture schedule on P01.01 specifies a 'FLOOR MOUNTED' water closet for the single-user ADA restrooms. As per ADA 604.8.1.1, this fixture selection requires a minimum clearance depth of 59 inches. The architectural dimensioned plan that would confirm this dimension appears to be missing.", "question": "Please provide the architectural dimensioned floor plan and confirm that the clear depth in both single-user restrooms meets the 59-inch minimum requirement. If not, please provide revised plans showing either an increased room size or a switch to a wall-hung fixture with a verified 56-inch clear depth.", "sheets_referenced": ["P01.01", "P02.01"], "disciplines_to_respond": ["Plumbing", "Architectural"], "suggested_response_needed": "Response required prior to permit submission.", "priority": "high"}, {"rfi_id": "QAQC-003", "issue_id": "QAQC-003", "title": "Missing Door and Window Schedules", "background": "The drawing set does not include Door or Window Schedules, nor are they listed in the sheet index on G11.01. While doors are indicated graphically on plans such as A24.01, they lack identifying tags. Information such as sizes, types, materials, hardware,Line truncated
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				[{"rfi_id": "DEDUP-01", "issue_id": "DEDUP-01", "title": "Conflicting Building Code References", "background": "The drawing set references multiple, conflicting versions of the International Building Code (IBC). Sheet G21.01 references the 2018 IBC. Sheets E01.01, P03.01, A23.01, and G11.04 reference the 2021 IBC. It is understood that the applicable code for the jurisdiction is the 2015 IBC.", "question": "Please clarify the single, legally adopted IBC edition to be used for the project and revise all drawing sheets and design criteria for consistency.", "sheets_referenced": ["G21.01", "E01.01", "P03.01", "A23.01", "G11.04"], "disciplines_to_respond": ["General", "Electrical", "Plumbing", "Architectural"], "suggested_response_needed": "Response required prior to permit submission.", "priority": "high"}, {"rfi_id": "QAQC-002-M", "issue_id": "QAQC-002-M", "title": "Missing Structural Drawings for New Rooftop Loads", "background": "The drawing set does not include any Structural (S-series) sheets. New rooftop units (RTUs) are specified, which will impose new loads on the existing structure. Notes on sheets M03.01 ('RE: STRUCTURAL.') and E05.02 ('VERIFY SUPPORT SIZING AND DESIGNED WITH PROJECT STRUCTURAL ENGINEER') explicitly reference coordination with a structural engineer, but no structural design is provided.", "question": "Please provide the complete Structural drawing set, sealed by the engineer of record, detailing the analysis of the existing structure and the design for supporting all new equipment. Please also update the cover sheet consultant list.", "sheets_referenced": ["G01.01", "A25.01", "M03.01", "E05.02", "G11.01"], "disciplines_to_respond": ["Structural", "Architectural", "Mechanical", "Electrical"], "suggested_response_needed": "Response required immediately.", "priority": "high"}, {"rfi_id": "CBI-003", "issue_id": "CBI-003", "title": "Inadequate Structural Support Detail for Suspended Equipment", "background": "Heavy equipment, including an electrical transformer and an electric water heater (EWH-1), are shown to be suspended above the ceiling. The details improperly delegate the structural design to the field by stating 'VERIFY SUPPORT SIZING AND DESIGNED WITH PROJECT STRUCTURAL ENGINEER PRIOR TO ASSEMBLY' (Sheet E05.02 for transformer) and showing a generic, non-engineered support detail for the water heater (Detail 4/P03.01).", "question": "Please provide engineered structural details, signed and sealed by the structural engineer of record, for the suspension of the transformer and the water heater. Details must show connection to the building structure and specify all required framing, hardware, and components.", "sheets_referenced": ["E05.02", "P03.01"], "disciplines_to_respond": ["Structural", "Electrical", "Plumbing"], "suggested_response_needed": "Response required immediately due to life-safety implications.", "priority": "high"}, {"rfi_id": "QAQC-001-M", "issue_id": "QAQC-001-M", "title": "Missing Architectural and Mechanical Plan Sheets", "background": "Key plan sheets are missing from the drawing set. The sheet index indicates that pages 14 (likely Architectural Dimension/Construction Plan), 15 (Architectural Reflected Ceiling Plan), and 22 (Mechanical HVAC Plan) were not included in the set.", "question": "Please provide the missing plan sheets (A-Dimension Plan, A-Reflected Ceiling Plan, M-HVAC Plan) and update the sheet index accordingly.", "sheets_referenced": ["G11.01"], "disciplines_to_respond": ["Architectural", "Mechanical"], "suggested_response_needed": "Response required immediately as the set is incomplete for review or bidding.", "priority": "high"}, {"rfi_id": "verizon-elyson-002", "issue_id": "verizon-elyson-002", "title": "Potential ADA Compliance issue for Restroom Fixture Clearance", "background": "The plumbing fixture schedule on P01.01 specifies a 'FLOOR MOUNTED' water closet for the single-user ADA restrooms. As per ADA 604.8.1.1, this fixture selection requires a minimum clearance depth of 59 inches. The architectural dimensioned plan that would confirm this dimension appears to be missing.", "question": "Please provide the architectural dimensioned floor plan and confirm that the clear depth in both single-user restrooms meets the 59-inch minimum requirement. If not, please provide revised plans showing either an increased room size or a switch to a wall-hung fixture with a verified 56-inch clear depth.", "sheets_referenced": ["P01.01", "P02.01"], "disciplines_to_respond": ["Plumbing", "Architectural"], "suggested_response_needed": "Response required prior to permit submission.", "priority": "high"}, {"rfi_id": "QAQC-003", "issue_id": "QAQC-003", "title": "Missing Door and Window Schedules", "background": "The drawing set does not include Door or Window Schedules, nor are they listed in the sheet index on G11.01. While doors are indicated graphically on plans such as A24.01, they lack identifying tags. Information such as sizes, types, materials, hardware,Line truncated