# Build Week vNext experiment

Status: promoted after three accepted live GPT-5.6 cases

This directory implements the persuasion-first workflow defined in
`../../../docs/current/milestone_2_plan.md`.

- `workflow.yaml` fixes model routes, bounds, artifacts, and stage contracts.
- `cases.yaml` fixes the two development cases and already-strong challenge.
- `prompts/` and `schemas/` define strict model-node inputs and outputs.
- `../../../scripts/chartsmith_vnext.py` is the deterministic runner.

This path remains under `config/experiments/` to preserve the exact provenance
recorded in accepted runs. `PROJECT_STATE.yaml` explicitly promotes it as the
active workflow; v2.6 remains the rollback baseline.

Use `scripts/bootstrap_codex.ps1` to install a compatible official Codex release.
The Codex-native image backend does not require `OPENAI_API_KEY`.

Do not reuse the historical `v3` workflow name. Do not copy pre-Build-Week
experiment configs here without an explicit dependency and provenance note.
