# FN-411 — Recon-to-Implementation Scoping Output

**Date:** 2026-05-16
**Inputs:**
- `MANIFEST.md` (FN-400 recon over FN-367 / VIN decoder)
- `MANIFEST-FN-403.md` (FN-403 recon over FN-368 / parts panel)

**Output:** Two new triage tasks created. Both classified **mechanical** per memory
`recon-to-implementation-scoping-pattern` — no FN-406-style UX-spec precursor required.

---

## Spawned tasks

### FN-415 — FN-367 VIN-decode retry verification + hit-target audit

- **Parent:** FN-367 (shipped `e274e02`).
- **Route:** `/dashboard/search` (`apps/web/src/routes/dashboard/search.tsx`).
- **New spec file:** `apps/web/e2e/vin-decode-retry.spec.ts` (location subject to repo Playwright dir convention; selectors are canonical).
- **Production edit (conditional):** Retry button hit-target widen to ≥44 px if measurement on `375 × 667` viewport fails the Apple HIG / Material baseline.
- **AC anchors:** locator stability (data-faro + role/name), retry-render guard
  (NOT rendered on `"abone olun"` / `"tanınamadı"` branches), PostHog
  `vin_decode_retry_clicked`, hit-target ≥44 px, no line-number assertions.
- **UX-spec precursor:** Not required.

### FN-416 — FN-368 parts-panel verification + hit-target audit

- **Parent:** FN-368 (shipped `0ce68a7`).
- **Component:** `apps/web/src/components/schema/parts-panel.tsx`.
- **Mount routes (4):** `vehicles_/$id/categories_/$categoryId`,
  `catalog_/$brandName_/$modelId/categories_/$categoryId`,
  `catalog_/emex/$catalogCode_/$vehicleId_/groups/$groupId`,
  `catalog_/pcat/$catalogId_/$modelId_/$carId_/groups/$groupId`.
- **New spec file:** `apps/web/e2e/parts-panel.spec.ts`.
- **Production edits (conditional):** OEM copy button (≈18 px today), parts row
  vertical (≈36 px today), "Geri don" empty-state escape (≈40 px today) — widen
  to ≥44 px via minimal Tailwind token swap. Escalate to UX-spec precursor if
  any widen forces layout reflow.
- **AC anchors:** inert-row no-op (FN-368 core fix), available-row toggle +
  scrollIntoView, OEM copy `stopPropagation` + clipboard + PostHog +
  `/analytics/oem-copy`, loading skeleton count = `SKELETON_ROW_KEYS.length`,
  empty-state `Geri don` → `history.back()`, no line-number assertions.
- **UX-spec precursor:** Not required for verification + hit-target widen.
  Required IF scope drifts into inline error UI on `<PartsPanel>` (currently
  bubbles `use-parts` failures to `<SchemaViewer>` skeleton — design-novel).

---

## Classification rationale

Both follow-ups satisfy the **Mechanical** criteria from memory
`recon-to-implementation-scoping-pattern`:

1. Playwright/E2E verification of an already-shipped, UX-reviewed fix.
2. Hit-target widening to a published platform baseline (44 px).
3. Locator-stability assertions that consume existing
   `data-faro-user-action-name` + ARIA hooks — no new hook attributes
   requested.

Neither task introduces new copy, color, layout primitives, or skeleton
dimensions. Anything that would (e.g. an inline error UI on PartsPanel for
`use-parts` failures) is explicitly carved out as out-of-scope and gated on a
separate FN-406-style UX-spec precursor.

## Rubric scoring (FN-395 P1)

Per memory `rubric-scoring-for-verification-follow-ups`: both tasks inherit
their parent's P1 gate rather than competing on the FN-395 shortlist. Scored
for visibility, not gated on the 6-point floor.

## Drift hardening

Acceptance criteria in both child tasks refer to selectors by
`data-faro-user-action-name`, ARIA role/name, or visible text — never by line
number. FN-400 → FN-403 already demonstrated the cost of line-number coupling
(`schema-viewer.tsx:69-83` → `:72-86` shift in 2 days). See memory
`manifest-drift-convention`.

---

## Non-goals (for this scoping task — FN-411)

- No implementation. FN-411 is scoping only.
- No baseline/PostHog work (that's FN-396's surface).
- No EMEX/PL24/PartsCatalogs fetch-layer work.