---
description: Mandatory build verification before marking Auto phases DONE (SD-3 honesty gate)
alwaysApply: true
---

# Build verification — mandatory before DONE

After any **Auto** build phase (`{step}b`, or any roadmap row with **Model: Auto**), **before** setting
the phase to **DONE** in `{{docs.roadmap_path}}`:

1. Run **`/build-verification-review`** (skill: `.cursor/skills/build-verification-review/SKILL.md`)
2. Use **`thinking-high`** model — independent verifier posture; not the build session model
3. Compare the **frozen spec** (`frozen: true`) to the **actual diff**, tests, and claims in
   `{{docs.handover_path}}`
4. **Do not mark DONE** until verdict is **`pass`**
5. On **`findings`**: fix only cited path:line items; re-run verification (max 5 rounds per skill)
6. On **`blocked`** or escalation (`security`, `irreversible`, `real_money`, `gates_tier3`): stop for human

Before any **Auto** phase **starts**, the frozen spec must have **`pass`** freeze review
(`/freeze-review-loop` when needed).

Tests green alone is **not** sufficient for DONE.

When `honesty.require_independent_second_reviewer` is `warn` or `require`, do **not** mark
DONE in the builder chat. Open a second chat or follow `docs/INDEPENDENT-SECOND-REVIEWER.md`
(`/independent-second-reviewer`). A builder-session BV `pass` does not unlock DONE.

**Sibling (shipped / live-health claims only):** when the session claims a live deploy, production
health, or "shipped" outside the local repo, also run **`/deploy-verification-review`**
(`.cursor/skills/deploy-verification-review/SKILL.md`). Do **not** run it for ordinary kit-only
Auto builds — that would false-close non-ship phases. Build verification is never waived.