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AI agent for construction estimators

Construction Drawing Dimension Conflict Agent

Resolve every dimension conflict before material is ordered or cut.

Quality controlAnalysisReal estate and constructionOperations
See how it worksGet access
Construction Drawing Dimension Conflict Agent: what goes in, what the agent does and what you get

What it does

A wall is 3,600 on the plan and 3,650 in the section, and nobody notices until the material is cut. This agent reads dimensions across plan, section, elevation and detail sheets, and compares the same feature wherever it appears. It flags conflicts, missing dimensions and sums that do not add up. It drafts a clarification list for the designer with sheet references. It tracks each answer. When revised drawings come in, it rechecks the answered items and looks for new conflicts. You approve the question list before it goes out. Edge case: the overall dimension string is 20 mm short of the sum of the segments, and the agent lists both numbers.

How it works

Follow the arrows from top to bottom. The orange dashed arrow is the loop: when a check fails, the agent goes back and tries again.

Start and resultWhat it doesA check on its own workWaits for your OKGoes back and retries
Yes, continueApprovedYes, continueNoNo 1 STARTS WHEN Drawing set or revision is received 2 USES A TOOL Read dimensions from plans, sections, elevations anddetails 3 DOES Match each feature across sheets 4 DOES Check that segments add up to overall dimensions 5 CHECKS THE RESULT Do all dimensions agree and add up? If not: List each conflict with sheet references andvalues. Back to step 4. 6 DOES Draft a clarification question for each conflict 7 YOU APPROVE Lead approves the question list 8 USES A TOOL Send the questions and log the answers 9 USES A TOOL Recheck answered items and scan for new conflicts 10 CHECKS THE RESULT Are all items closed and no new conflicts found? If not: Keep open items and send a reminder. Back tostep 6. 11 RESULT Dimension clarification log
Read the steps as a list
  1. Drawing set or revision is received
  2. Read dimensions from plans, sections, elevations and details
  3. Match each feature across sheets
  4. Check that segments add up to overall dimensions
  5. Do all dimensions agree and add up?If not: List each conflict with sheet references and values. Back to step 4.
  6. Draft a clarification question for each conflict
  7. Lead approves the question listThe agent waits here for your OK.
  8. Send the questions and log the answers
  9. Recheck answered items and scan for new conflicts
  10. Are all items closed and no new conflicts found?If not: Keep open items and send a reminder. Back to step 6.
  11. Dimension clarification log

How it decides

It compares each feature at every place it appears and checks that dimension strings sum to the overall. A conflict stays open until a revised sheet shows one value.

  • A difference over 5 mm is a conflict (default)
  • Dimension strings must sum to the overall
  • Closed only when a revised drawing shows one value
  • Material orders on a conflicting item are held

Make it yours

Every agent is a starting point. You choose these settings for your own situation.

  • Conflict threshold (default 5 mm)
  • Sheets included
  • Designer contact
  • Reminder wait (default 3 days)
  • Which orders are held

What keeps you in control

It always asks you first

  • The question list before sending
  • Any decision to proceed on an assumption

Hard limits

  • Never decides the correct dimension
  • Never sends questions without approval
  • Keeps sheet references with every item

It stops when

  • Done: all conflicts closed
  • Stop: designer unresponsive; lead decides whether to proceed on an assumption

Set it up

We guide you through the set-up, step by step

Members get the full set-up guide for this agent. No technical skills needed: you copy, paste and upload.

10 minto set it up in your AI
5 AIsChatGPT, Claude, Copilot, Gemini, Grok
  • One set of instructions to paste into your AI, with the clicks for ChatGPT, Claude, Microsoft 365 Copilot, Gemini and Grok
  • The agent then walks you through connecting your own data, one source at a time
  • A downloadable copy with the flow chart, the rules and the full guide
Get access to this agent

An example run

What happensA 4-sheet set for a house extension showed the wall at 5,200 mm on the plan and 5,250 mm in section B. The agent also found a string of 2,400 + 2,700 short of a 5,200 total by 100. It listed three questions. The designer answered two and reissued the sheet, but section B was unchanged, so the check failed and a reminder went out.

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