Lilach for Work · Discipline modules overview

Five disciplines, one engine

Per locked Decision 07 — we build ALL engineering disciplines, not just geotech. Same engine, same skills foundation, discipline-specific report types and standards overlay on top.

7 June 2026 · 1 done · 4 to build · all share the same engine

1. Geotechnical

BUILT · DEMO A SHIPPING

Report types built

Investigation report (factual + interpretive)
Site description, stratigraphy, lab summary
AS 2870 site classification (always flag)
AS 3798 earthworks framework
Site classification report (residential lots)
Footing/pad inspection reports
Earthworks Level 1/2 supervision letters

Standards stack

AS 1726-2017 · site investigations
AS 1289 series · soil testing methods
AS 2870-2011 · residential slabs (flag)
AS 3798-2007 · earthworks
AS 2159-2009 · piling
Qld TMR Geotechnical Investigations Guideline
Austroads Pavement Technology

Wedge angle: AS 1726 logs-to-stratigraphy-prose transform (the showcase). Naive LLM invents "typical" ranges; ours derives from the actual CSV rows.

2. Structural

TO BUILD · #176

Report types to add

Structural design report / design certificate package
Certification letters (Form 15 / 12 Qld · DCD NSW · WA CDC)
Structural inspection / condition assessment (AS 4349.1)
Dilapidation reports (photo-heavy, per-property batch)
Remedial / structural investigation (defects, cracking)
Safe Design report (WHS Reg s.295)

Standards stack

NCC (National Construction Code)
AS 3600-2018 · concrete structures
AS 4100-2020 · steel structures
AS 3700-2018 · masonry structures
AS 1170 series · structural design actions
AS 4349.1-2007 · property inspections
DBP Act 2020 (NSW) · registered practitioner regimes
Building Act 1975 (Qld) Forms 15 + 12

Wedge angle: Form 15/12 + DCD certification letters use locked statutory text — drafter fills the named fields only, never paraphrases the certification clause. Practitioner registration number = critical flag.

3. Civil / drainage

TO BUILD · #177

Report types to add

Subdivision engineering design report (IPWEA WA Ed 3.1)
Stormwater management plan (ARR 2019 · council DCP)
Urban water management plan (WA-specific)
Flood study / drainage assessment
Pavement design report (Austroads)
Engineering certification for subdivision clearance letters

Standards stack

ARR 2019 · Australian Rainfall & Runoff
IPWEA WA Local Government Guidelines Ed 3.1
Per-council DCPs (Karratha · Kalamunda · Armadale etc)
Austroads Guide to Pavement Technology
SMA Stormwater Planning Guidelines (SA)
WAPC Better Urban Water Management

Wedge angle: ARR 2019 nomenclature consistency (AEP not ARI · BOM IFD for rainfall · cited climate scenario) — naive LLM defaults to pre-2016 idioms and invents runoff coefficients. Council DCP variation handled per-LGA.

4. Traffic

TO BUILD · #178

Report types to add

Traffic Impact Statement (TIS) · 10-100 vph developments
Traffic Impact Assessment (TIA) · >100 vph
Parking demand assessment
Swept path / access review memos
Road safety audit

Standards stack

WAPC Transport Impact Assessment Guidelines (2016)
Qld TMR Guide to Traffic Impact Assessment (2017)
TfNSW TS 00085 transport impact guide (2025)
AS 2890.1-2004 · off-street parking
AS 2890.2-2018 · off-street commercial
Austroads Guide to Traffic Management (parts)
SIDRA modelling outputs → prose

Wedge angle: SIDRA model outputs → conformance prose is repetitive and dull — drafter pulls the LoS / DoS / queue numbers correctly, never invents. Trip-threshold logic (10-100 vph TIS · >100 TIA) auto-applies per project size.

5. Environmental / contaminated land

TO BUILD · #179

Report types to add

Preliminary Site Investigation (PSI · EPA Table 2.1)
Sampling & Analysis Quality Plan (SAQP · Table 2.2)
Detailed Site Investigation (DSI · Table 2.3)
Site-specific risk assessment (Table 2.4)
Remedial Action Plan (RAP · Table 2.5)
Remediation & validation (Table 2.6)
Ongoing monitoring (Table 2.8 · recurring)
Waste classification (EPA Box 3)

Standards stack

NSW EPA Consultants Reporting on Contaminated Land (Apr 2020)
ASC NEPM 1999 · national assessment framework
NEPM Schedule B1-B7 trigger values
EPBC Act 1999 (Cth) · matters of national env. significance
State biodiversity acts (NSW · QLD · WA · VIC)
DCCEEW survey/data currency rules

Wedge angle: The NSW EPA section skeletons are PUBLISHED by the regulator — zero guesswork on structure. Naive LLM combines section headings; ours follows Table 2.1 verbatim. CSM + DQOs + QA/QC sections never omitted.

Shared engine — built once, used by all 5

What every discipline gets from the foundation

PROJECT DATA MODEL

39 fields per m005 · firm constants + doc control + identity + commercial + discipline-conditional

DOC NUMBER ENGINE

Pattern computation · {proj}.{type}.{seq}.{rev}

DRAFTER PIPELINE

LLM call per section + structured payload + retry/backoff

SKILL LOADER

14 honesty + writing skills load per section + discipline

DOCX RENDERER

Markdown → .docx with red flags + yellow AI-paragraph highlights

PROVENANCE TRACKER

5-source taxonomy · every value receipted · provenance.md output

PHOTO HANDLER

EXIF + GPS → borehole/feature grouping · 2-up appendix

TIMING TRACKER

Per-section seconds → timing.log · the pitch numbers

SIGNING CHAIN VALIDATOR

Decision 04 · min 2 reviewers · always

What each new discipline needs

Per discipline (4 needed): roughly 250-400 lines of new content total.

3-6 new discipline writing skills (~150-200 lines each) — e.g. AS 3600 concrete structures · NCC Class structural rules · AS 2890 parking layout · NSW EPA NEPM trigger handling
1-2 report-type section skeletons (existing playbook skills 15-20 cover the major types) — define section order + per-section briefs for the new report types
1 sample fixture set (CSVs + brief + voice notes) realistic for the discipline · for testing only · invented project
Manual template calibration per onboarded firm in that discipline (half-day per template per Decision 09)

Estimated build time per discipline: 1-1.5 sessions for skills + skeletons + fixtures. Templates calibrated as firms onboard.

END · DISCIPLINE MODULES OVERVIEW · 7 JUNE 2026 · SHARED ENGINE BUILT · 4 OVERLAYS TO ADD