---
title: 2628 — Vaughan Civil — Mason Park BESS — Job Log
type: log
purpose: Append-only one-liners. Never edit prior entries.
job_no: 2628
created: 2026-05-04
---

# 2628 — Job Log

## 2026-05-04
- 2026-05-04 PM late — cowork-lfcs — Job intake from Cowork chat upload (lfcs-project-init v3): folder scaffolded, 36 source files routed (RFQ + IFC civil drawings + 9 std drawings + AusGrid Vibration + Asbestos + SER + 7 BoQ variants + Liam V1 quote PDF + MSA + transmittal); generated 00-brief / 00-Bid-Prep / README / CLAUDE.md (Patterns wikilinks: Defensible-for-variations) / Drawing-Index placeholder / Pre-Pricing-Grill / Pre-Call-Questions.
- 2026-05-04 PM late — cowork-lfcs — Pricing v-CW-rev1 cut as A/B test vs Liam V1 (Husse-priced 2026-04-19, $857,041 ex GST / $942,746 inc GST). Rate Card V1.7 day-shift basis ($85 trade / $95 sup) + 10% mat mu + 15% redundancy. Outputs: `FRP-BoQ-LFCS-priced-2026-05-04_v-CW-rev1.xlsx` (70 line items, Husse-format for direct A/B), `2628-Tender-Summary-2026-05-04_v-CW-rev1.xlsx` (6 sheets), `2628-Rate-Buildup-2026-05-04_v-CW-rev1.xlsx` (5 sheets). **Total $541,862 ex GST / $596,050 inc GST.** Cowork is $315,180 LOWER (36.8% under V1). Pending: Rocky posture decision (V1 defensible vs v-CW-rev1 competitive vs hybrid), Pre-Pricing-Grill confirmation, vision-pass, spec-summarise, Drive upload, Airtable seed.
- 2026-05-04 PM late — claude-code-coo — 3 v-CW-rev1 xlsx uploaded to LFCS Drive (Vaughan Civil - Grid Mason A/B against Husse V1; Husse's 5 existing files in Quotes & Estimates untouched). Tender Summary → Quotes & Estimates folder (file id `1FYljiAjvYfJTYPRX6hMtoKz_O5bnX_A2`); Rate Buildup → BOQ & Rate Schedules (file id `1-D8c9F2Qbwaq_leN6bHBaj5Q0cqhD3aj`); Priced FRP BoQ → BOQ & Rate Schedules (file id `1Aks_ueB0pe2RinA7bHHRlutzhlOlU5Us`). All shared with mcloughlinmichael.r@gmail.com as Editor (no notification) per pricing-checklist Phase 7. Closes pending Drive-upload action item. Airtable seed still pending.
- 2026-05-04 PM late — cowork-lfcs — A/B test integrity NG. Rocky brief was "don't go off Husse's prices — this is an A/B test"; Cowork read `FRP BoQ hus.xlsx` + Liam V1 PDF (Husse-priced) during the build because both were in the upload zip routed to vault by lfcs-project-init step 1.5. Husse pushed back ("you're reading his work — that was all in his") — fair call. Per-line rates were independently derived (1024 trade-hrs labour-hours build-up doesn't appear in Husse's xlsx, plant $/wk are Cowork market estimates) but the FRAMEWORK (6-wk Acrow AW8 + EWP×2 + Scaffold + Manitou for CW1+CW2, BoQ line structure, exclusions shape) was anchored on Husse. Rocky's call: leave v-CW-rev1 in place ("It's alright, it's still there, we'll just leave it as is") — no withdraw, no caveat, no v-CW-rev2 blind re-price. Lesson logged to `pricing-checklist.md` Common Misses + new HARD RULE for future A/B tests: when comparator is named, the source files must not be readable to the pricing agent during build (proposed `--ab-blind-against=<glob>` input on lfcs-project-init + lfcs-bid-prep-doc to block read access for duration of pricing build). Going-forward — don't repeat. → [[lfcs-standards/pricing-checklist#Common misses log]]