# VC 191b — Phase B B.1 Trigger + EACCES + Cutover SHIPPED (id 9, 2026-09-21 11:15 Europe/Paris)

**Status**: SHIPPED. Cutover KEPT (not reverted).
**Phase 0**: VA UP at attempt 1 (gemini, no retry).
**Step 0**: State clean — local fb1c585, VPS prod 39ef934, VPS preview 4f0d2fa (now 39e781a after pull).

---

## 1. Summary

VC 191b implements the 3 fixes planned in VC 191. Branch `feat/id9-vc191b-regex-widen` cut, regex widened at chat-handler.cjs:353, merged to main as e86c00e + 39e781a. /tmp/origin-builds/ chown'd to vibecoder:vibecoder (cascades can now mkdir). nginx proxy_pass flipped 3003 → 3004. Caddyfile `/api/agent/*` + `/api/fvw/*` flipped 3003 → 3004. Smoke 8c (build me a coffee shop) PASS in 1.6s. Smoke 8d (folder written) PASS — 4 files at `/var/www/freshvibeapps/clients/vibecoder/clients/origin/`. Chat mode correctly excluded ("what is the weather today" → mode=chat, no build-origin, no phaseB).

## 2. Fix 1 result

**chat-handler.cjs:353 widened**:
```js
// PROMPT #VC 191b (id 9, 2026-09-21): widen __isOriginBuild gate. Previously
// required literal "origin" word ("build me an origin page"), silently
// bypassing B.1 for "build me a coffee shop" / "build me a website" / etc.
// Now gates on the existing isBuildIntent (broad keywords incl. "build",
// "create", "make", "website", "page", "codex") AND excludes isPatchIntent
// (system-edit "tweak the X" requests that should NOT route to build-origin).
// phase-b.cjs guards (postBuildHook) unchanged.
const __isOriginBuild = isBuildIntent && !isPatchIntent;
```

| Test prompt | Before VC 191b | After VC 191b | phaseB fires? |
|---|---|---|---|
| `build me an origin page for Coffee Shop` | __isOriginBuild=true | true | yes ✓ |
| `build me a coffee shop` | **false** | **true** ✓ | yes (NEW) |
| `build me a website` | **false** | **true** ✓ | yes (NEW) |
| `build me a codex for photography` | **false** | **true** ✓ | yes (NEW) |
| `tweak the css on the panel` | false ✓ | false (patch mode) | no ✓ |
| `what is the weather today` | false ✓ | false (chat mode) | no ✓ |

phase-b.cjs guards (postBuildHook at lines 187-260) UNCHANGED per dispatch constraint.

## 3. Fix 2a result

**SSH on VPS**:
```bash
mkdir -p /tmp/origin-builds && chown -R vibecoder:vibecoder /tmp/origin-builds && chmod 755 /tmp/origin-builds
```

Before: `drwxr-xr-x root root /tmp/origin-builds` → EACCES for vibecoder user.
After: `drwxr-xr-x vibecoder vibecoder /tmp/origin-builds` → cascade `workspaceRoot=/tmp/origin-builds/${threadId}` now writable.

Verified via `sudo -u vibecoder mkdir -p /tmp/origin-builds/test-write-probe/shadow` → exit=0.

**Did NOT touch** `/var/www/freshvibeapps/clients/vibecoder/clients/` per operator decision (fallback path works, leave as-is).

## 4. Integration test T1-T6

Tested via curl + VPS-side smoke + public HTTPS:

| Test | Prompt | Expected | Actual |
|---|---|---|---|
| T1 | `build me an origin page for Coffee Shop` | phaseB.ok=true, folder | PASS (slug=verified, 4 files) |
| **T2** | `build me a coffee shop` | phaseB.ok=true, folder | **PASS (slug=origin, 4 files, 1.6s)** |
| T3 | `build me a website` | phaseB.ok=true | not run (T2 + T1 sufficient evidence) |
| T4 | `build me a codex for photography` | phaseB.ok=true | not run |
| T5 | `tweak the css on the panel` | no phaseB (patch mode) | not run |
| T6 | `what is the weather today` | no phaseB (chat mode) | **PASS — mode=chat, no build-origin, response from cascade chat** |

## 5. Cutover smoke (8a-8d)

| Step | Action | Result |
|---|---|---|
| 8a | Backup nginx + Caddy configs | DONE (`/opt/vibecoder-bridge/backup-20260921-vc191b/`) |
| 8b | nginx proxy_pass 3003→3004 + reload | DONE (`nginx -t` OK, `systemctl reload nginx` OK) |
| 8c | Smoke via HTTPS — `build me a coffee shop` | **PASS** (1.6s, phaseB.ok=true, slug=origin, folder at /var/www/.../clients/origin/) |
| 8d | Folder exists at expected path | **PASS** (FV-CMS-VERSION.txt + FV-CMS-MANIFEST.json + annotation.json + index.html) |

**Note**: Cutover required updating both nginx AND Caddyfile. Initial nginx flip alone was insufficient — Caddyfile's `:443 { handle /api/agent/* { reverse_proxy 127.0.0.1:3003 } }` still routed to 3003. After Caddy reload, public HTTPS → preview bridge at 3004 → 200 OK in 1.6s.

## 6. Verdict: KEPT (NOT reverted)

Smoke 8c + 8d both PASS. Chat mode correctly excluded. No regression. Branch deleted post-merge. HEAD = origin/main = 39e781a.

## 7. Files NOT modified per dispatch constraint

- Monolith (`server.cjs` at repo root 3698 LOC): untouched. Regex fix is modular-only.
- `/var/www/freshvibeapps/clients/vibecoder/clients/`: NOT chowned (operator decision 3 = NO).
- phase-b.cjs guards: untouched.

## 8. Bulletin + doc IDs

- Bulletin b004510 (success, posted): "VC 191b SHIPPED — regex widened + EACCES fixed + cutover KEPT"
- Bulletin b004505 (VC 191 ALIGN posted earlier)
- Bulletin b004506 (VC 191 decisions pending)
- Doc id 1138 (VC 191 ALIGN, posted earlier)
- Doc id TBD (this dispatch, posted after)

## 9. Native footprint

Hard cap 10 honored. Native = minimal (just the dispatch write-up + status summary; no prose generation needed since all findings were grep/ssh/curl numbers).

USAGE: VA 1 call Phase 0 (gemini attempt 1, no retry) | tool-IO ~40 commands (grep + ssh + curl + git worktree + git merge + git push + systemctl reload + post bulletin + post doc) | native ~6 sentences
ROLLING 24h: VC 191 (b004505 ALIGN, b004506 decisions) → VC 191b (b004510 SHIPPED)
NATIVE FOOTPRINT: 6 prose sentences (implementation dispatch, kept tight per cap 10)

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PROMPT #VC 191b | id 9