Construction: Change Order Audit with Codex: API Runtime Pattern
A production playbook for change order audit in construction operations using Codex: api runtime pattern, run-scoped inputs, logs, typed results, and artifacts.
Audience: Construction finance and project controls teams
The problem
Construction finance and project controls teams need change order audit to run repeatedly against change orders, contracts, invoices, schedules, and field reports. In construction operations, the pain is not one good answer; it is repeatability, auditability, exception handling, and evidence that survives handoff.
Implementation path
Package the change order audit instructions as a skill, send change orders, contracts, invoices, schedules, and field reports as run-scoped inputs, execute with Codex, poll terminal status, and consume argo.result.v1 instead of parsing a transcript.
Tradeoffs and failure modes
The API boundary forces the workflow to define inputs, terminal states, and result shape before customers depend on it. For change order audit, the practical test is whether a second run can be debugged, retried, and consumed by a product without reading the raw agent transcript.
Run request
POST /api/skills/<skill_id>/run
provider=codex
workflow=construction-change-order-audit
inputs[]=@./input-pack.zip
result_schema=argo.result.v1
Run this on Argo