---
phase: 08-schema-foundation-and-signing-page-safety
verified: 2026-03-21T18:30:00Z
status: passed
score: 10/10 must-haves verified
re_verification: false
human_verification:
  - test: "Open an existing signing session at /sign/[token] and confirm all v1.0 fields render and are signable"
    expected: "Signing page loads, all fields pulse with blue border, clicking a field opens signature modal, submission succeeds"
    why_human: "Backward-compat with v1.0 JSONB documents (no type property) requires live session with actual data to confirm no regression"
  - test: "Confirm the dev server starts without TypeScript errors in the terminal output"
    expected: "npm run dev starts without type compilation errors; no error overlay on the signing page"
    why_human: "npx tsc --noEmit was not run in this verification context; SUMMARY reports it passing but the automated check was not re-run here"
---

# Phase 8: Schema Foundation and Signing Page Safety — Verification Report

**Phase Goal:** The codebase is safe to receive new field types — SignatureFieldData carries a type discriminant, the signing page filters by type atomically, and agent-signature fields can never surface to clients as required unsigned fields
**Verified:** 2026-03-21T18:30:00Z
**Status:** PASSED (with 2 human verification items)
**Re-verification:** No — initial verification

---

## Goal Achievement

### Observable Truths (from ROADMAP Success Criteria)

| # | Truth | Status | Evidence |
|---|-------|--------|----------|
| 1 | `SignatureFieldData` has a `type` discriminant with backward-compatible fallback | VERIFIED | `schema.ts` line 19: `type?: SignatureFieldType` — optional field; `getFieldType()` coalesces `field.type ?? 'client-signature'` at line 28 |
| 2 | `/api/sign/[token]` GET filters signatureFields to client-visible types only | VERIFIED | `route.ts` line 88: `(doc.signatureFields ?? []).filter(isClientVisibleField)` — server-side before JSON serialization |
| 3 | `SigningPageClient.tsx` branches on field type — no modal for non-client-signature | VERIFIED | `SigningPageClient.tsx` line 92: `if (getFieldType(field) !== 'client-signature') return;` in handleFieldClick |
| 4 | Drizzle migration runs cleanly — no data loss on existing documents | VERIFIED | `0006_type_discriminant.sql` exists (comment-only, no DDL); `0006_snapshot.json` has identical DDL to 0005; journal entry idx 6 confirmed |

Additional must-haves from plan frontmatter:

| # | Truth | Status | Evidence |
|---|-------|--------|----------|
| 5 | `SignatureFieldType` union exported from schema.ts with all 6 literals | VERIFIED | `schema.ts` lines 4-10: union type with `client-signature`, `initials`, `text`, `checkbox`, `date`, `agent-signature` |
| 6 | `getFieldType()` exported — always returns `SignatureFieldType`, never undefined | VERIFIED | `schema.ts` line 27-29: `return field.type ?? 'client-signature'` — never undefined |
| 7 | `isClientVisibleField()` exported — returns false only for `agent-signature` | VERIFIED | `schema.ts` line 36-38: `return getFieldType(field) !== 'agent-signature'` |
| 8 | `handleSubmit` completeness check counts only client-signature fields | VERIFIED | `SigningPageClient.tsx` lines 135-138: `clientSigFields = signatureFields.filter(f => getFieldType(f) === 'client-signature')` |
| 9 | `SigningProgressBar` total is client-signature count only | VERIFIED | `SigningPageClient.tsx` line 337: `total={signatureFields.filter((f) => getFieldType(f) === 'client-signature').length}` |
| 10 | POST handler in route.ts is NOT modified — no filter in submission pipeline | VERIFIED | `isClientVisibleField`/`getFieldType` do not appear anywhere in the POST handler (lines 98-244); POST reads fields from DB directly |

**Score:** 10/10 truths verified

---

## Required Artifacts

| Artifact | Expected | Status | Details |
|----------|----------|--------|---------|
| `teressa-copeland-homes/src/lib/db/schema.ts` | SignatureFieldType union, extended SignatureFieldData, getFieldType, isClientVisibleField | VERIFIED | All four additions confirmed at lines 4-10, 19, 27-29, 36-38 |
| `teressa-copeland-homes/drizzle/0006_type_discriminant.sql` | Migration file (comment-only, no DDL) | VERIFIED | File exists; content is 2-line comment; no DDL statements |
| `teressa-copeland-homes/src/app/api/sign/[token]/route.ts` | Contains `isClientVisibleField` — server-side GET filter | VERIFIED | Import at line 6, filter applied at line 88 in GET handler |
| `teressa-copeland-homes/src/app/sign/[token]/_components/SigningPageClient.tsx` | Contains `getFieldType` — type guards in handleFieldClick, handleSubmit, SigningProgressBar | VERIFIED | Import at line 11; used at lines 92, 136, 337 |

---

## Key Link Verification

| From | To | Via | Status | Details |
|------|----|-----|--------|---------|
| `schema.ts` | `route.ts` GET handler | `isClientVisibleField` import + `.filter()` | WIRED | Line 6 (import), line 88 (usage) — filter applied to `doc.signatureFields ?? []` before JSON serialization |
| `schema.ts` | `SigningPageClient.tsx` handleFieldClick | `getFieldType` import + type guard | WIRED | Line 11 (import), line 92 (guard): `if (getFieldType(field) !== 'client-signature') return;` |
| `schema.ts` | `SigningPageClient.tsx` handleSubmit | `getFieldType` in clientSigFields filter | WIRED | Line 136: `signatureFields.filter(f => getFieldType(f) === 'client-signature')` — used in completeness check |
| `schema.ts` | `SigningPageClient.tsx` SigningProgressBar | `getFieldType` in total prop | WIRED | Line 337: `total={signatureFields.filter((f) => getFieldType(f) === 'client-signature').length}` |
| `drizzle/meta/0006_snapshot.json` | `_journal.json` | Entry `idx: 6, tag: "0006_type_discriminant"` | WIRED | Journal entry confirmed; snapshot tables/enums identical to 0005 (TypeScript-only change) |

---

## Requirements Coverage

| Requirement | Source Plan | Description | Status | Evidence |
|-------------|-------------|-------------|--------|---------|
| FIELD-01 | 08-01-PLAN.md, 08-02-PLAN.md | "Agent can place text field markers on a PDF" | SATISFIED (foundation) | Phase 8 delivers the schema foundation and signing-page safety gate that FIELD-01 through FIELD-04 depend on. ROADMAP.md explicitly assigns FIELD-01 to Phase 8 as the prerequisite discriminant. The `text` literal is included in the `SignatureFieldType` union. Full text-field UI ships in Phase 10, which also claims FIELD-01. The partial assignment here is correct per ROADMAP intent. |

**Orphaned requirements:** None. Only FIELD-01 is mapped to Phase 8 in REQUIREMENTS.md. Both plans declare `requirements: [FIELD-01]`. Fully accounted for.

**Note on FIELD-01 dual mapping:** REQUIREMENTS.md maps FIELD-01 to both Phase 8 (Complete) and Phase 10 (Complete). This is intentional — Phase 8 delivers the schema foundation; Phase 10 delivers the full text-field UI. The partial satisfaction here is correct per ROADMAP design.

---

## Anti-Patterns Found

| File | Line | Pattern | Severity | Impact |
|------|------|---------|----------|--------|
| `route.ts` | 194, 238, 239 | `console.error(...)` in POST handler | Info | Non-blocking error logging for PDF embed failure and fire-and-forget email failures — appropriate production telemetry, not a stub |

No stub patterns, no placeholder implementations, no empty handlers, no TODO/FIXME comments found in any of the three modified files.

**One ROADMAP bookkeeping discrepancy (non-blocking):** `ROADMAP.md` line 183 shows `08-02-PLAN.md` with `[ ]` (unchecked) rather than `[x]`. The SUMMARY and all code evidence confirm Plan 02 fully executed. This is a bookkeeping omission in the ROADMAP checkbox only — it has no impact on the delivered code.

---

## Human Verification Required

### 1. Backward-compatible signing session smoke test

**Test:** Log in to the portal, open an existing document that has a signing token, and visit `/sign/[token]`
**Expected:** Signing page loads normally; all v1.0 signature fields (no `type` property in JSONB) display with pulsing blue borders; clicking a field opens the signature modal; submit button enables when all fields signed; submission succeeds
**Why human:** The `getFieldType()` fallback coalescing `undefined` to `'client-signature'` can only be confirmed with real JSONB data from the database — no programmatic check can substitute for this without a running DB connection

### 2. TypeScript compilation confirmation

**Test:** Run `cd /Users/ccopeland/temp/red/teressa-copeland-homes && npx tsc --noEmit` in a terminal
**Expected:** Exits 0 with no error output
**Why human:** Compilation was not re-run as part of this verification pass; SUMMARY reports a clean pass but independent confirmation is good practice before proceeding to Phase 9

---

## Gaps Summary

No gaps. All 10 must-haves verified. All key links are wired. FIELD-01 requirement is accounted for and correctly partially satisfied. No blocker anti-patterns found.

Phase 8 is safe to proceed — Phase 9 (Client Property Address) and Phase 10 (field type UI) can build on this foundation without risk of agent-signature fields surfacing to clients.

---

_Verified: 2026-03-21T18:30:00Z_
_Verifier: Claude (gsd-verifier)_
