Code Migration Planning with Codex: API Runtime Pattern
A production playbook for code migration planning in cross-industry operations using Codex: api runtime pattern, run-scoped inputs, logs, typed results, and artifacts.
Audience: Engineering teams preparing framework or API migrations
The problem
Engineering teams preparing framework or API migrations need code migration planning to run repeatedly against repository snapshots, target docs, and compatibility notes. In cross-industry operations, the pain is not one good answer; it is repeatability, auditability, exception handling, and evidence that survives handoff.
Implementation path
Package the code migration planning instructions as a skill, send repository snapshots, target docs, and compatibility notes 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 code migration planning, 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=migration-planning
inputs[]=@./input-pack.zip
result_schema=argo.result.v1
Run this on Argo