Comercio Exterior: VUCEM Intake Validation with Codex: Sandbox Policy

A production playbook for VUCEM intake validation in comercio exterior operations using Codex: sandbox policy, run-scoped inputs, logs, typed results, and artifacts.

Audience: Mexican trade operations teams

The problem

Mexican trade operations teams need VUCEM intake validation to run repeatedly against COVE/MVE files, certificates, invoice data, e-docs, and VUCEM response records. In comercio exterior operations, the pain is not one good answer; it is repeatability, auditability, exception handling, and evidence that survives handoff.

Implementation path

Run VUCEM intake validation in an ephemeral sandbox, keep provider credentials in the broker, expose narrow tools, and store logs outside the workspace for review.

Tradeoffs and failure modes

A narrower runtime blocks ambient machine behavior, but it gives security reviewers a concrete boundary. For VUCEM intake validation, the practical test is whether a second run can be debugged, retried, and consumed by a product without reading the raw agent transcript.

Runtime boundary

filesystem: /skill and /skill/.argo/inputs only
network: deny by default
artifacts: /skill/output/artifacts
logs: retained outside sandbox
provider: Codex

Run this on Argo