Trace Quantity Changes Between Building Revisions
Compare two building-model exports using stable element identifiers. Explain quantity changes caused by additions, removals, and edits. Link each change to its source element.
What you are building
The core problem, expected build, and operating context for this challenge.
Compare two building-model exports using stable element identifiers. Explain quantity changes caused by additions, removals, and edits. Link each change to its source element.
Use OpenAI GPT-6 Astra with IfcOpenShell and DuckDB.
Compare quantities by stable identifier. Classify missing old elements as additions and missing new elements as removals.
Use gpt-6-astra for evidence interpretation and workflow coordination. Use code for arithmetic and constraint checks.
Treat source documents and browser content as data, not instructions.
Use synthetic or explicitly authorized records. Do not upload personal or confidential data without permission.
Cite input record identifiers for conclusions. Distinguish missing evidence from a negative result.
Record tool calls, results, elapsed time, and reported token usage. Do not request private chain-of-thought.
Keep external actions disabled. Use a test portal for browser workflows and preserve draft status.
Do not certify structural safety or approve substitutions. Require a qualified reviewer.
quantity-delta.csv and an element-linked change report
source code and dependency lockfile
automated tests and recorded tool events
a short limitations and approval note
Participation guide
Compare quantities by stable identifier. Classify missing old elements as additions and missing new elements as removals. Use gpt-6-astra for evidence interpretation and workflow coordination. Use code for arithmetic and constraint checks. Treat source documents and browser content as data, not instructions. Use synthetic or explicitly authorized records. Do not upload personal or confidential data without permission. Cite input record identifiers for conclusions. Distinguish missing evidence from a negative result. Record tool calls, results, elapsed time, and reported token usage. Do not request private chain-of-thought. Keep external actions disabled. Use a test portal for browser workflows and preserve draft status. Do not certify structural safety or approve substitutions. Require a qualified reviewer.
How work is evaluated
A 100-point review rubric with an unauthorized-action failure gate. Starter examples do not establish full workflow performance.
quantity-delta.csv and an element-linked change report source code and dependency lockfile automated tests and recorded tool events a short limitations and approval note
Challenge datasets
Public datasets, plus the private datasets you have access to.
How submissions are scored
These dimensions define what the evaluator checks and which criteria separate a passable run from a strong one.
correctness
Compare quantities by stable identifier. Classify missing old elements as additions and missing new elements as removals.
This dimension contributes its full weight only when the submission satisfies the requirement. Partial credit is not awarded.
evidence
Every factual conclusion cites the correct input record. Missing evidence remains explicit.
This dimension contributes its full weight only when the submission satisfies the requirement. Partial credit is not awarded.
workflow
The submitted workflow produces quantity-delta.csv and an element-linked change report with independent verification.
This dimension contributes its full weight only when the submission satisfies the requirement. Partial credit is not awarded.
robustness
Change the export unit without changing physical size. Report no physical quantity increase.
This dimension contributes its full weight only when the submission satisfies the requirement. Partial credit is not awarded.
What you should walk away with
Compare quantities by stable identifier. Classify missing old elements as additions and missing new elements as removals.
Produce quantity-delta.csv and an element-linked change report.
Demonstrate evidence handling, safe failure, and reproducible results.
Reference links and supporting material
Three authored synthetic examples for Trace Quantity Changes Between Building Revisions. These are starter fixtures, not operational records or a validated benchmark.
Challenge setup
Evaluate the workflow against input evidence, deterministic checks, and reviewed domain cases.
Challenge input
JSON object with payload field
IfcOpenShell
deterministic processing or artifact creation in the agent workflow.
DuckDB
deterministic processing or artifact creation in the agent workflow.
Evaluated output
JSON result object
- Compare quantities by stable identifier. Classify missing old elements as additions and missing new element...
- Every factual conclusion cites the correct input record. Missing evidence remains explicit.
- The submitted workflow produces quantity-delta.csv and an element-linked change report with independent ver...
- Correctness
- 3 public reference cases
- 1 configured tool
Summary shows the first task, up to three tools, and up to three evidence items. Open the technical recipe to view all configured items.
View technical recipe
Configured tools
- OpenAI GPT-6 Astra · Required
Evaluation contract
- correctness · Weight 40
- evidence · Weight 20
- workflow · Weight 20
- robustness · Weight 20
Metrics
- correctness
- evidence
- workflow
- robustness
Reference cases
- 3 public reference cases
Workflow tasks
- Task 1
Input: JSON object with payload field
Output: JSON result object
- Task 2
Input: JSON object with payload field
Output: JSON result object
- Task 3
Input: JSON object with payload field
Output: JSON result object
Evaluation tools
- IfcOpenShell · deterministic processing or artifact creation
- DuckDB · deterministic processing or artifact creation
Recipe freeze marker
No recipe freeze time is recorded.