Lachlan McGregor

A few things I've worked on.

Featured build · Paid client work

SimX

AI integration for an existing crisis simulation platform. I work with the client to turn manually prepared exercises into AI-generated scenarios, then build the administration tools, live characters and evaluation features around them. My part spans scoping, legacy debugging and testing.

Explore the SimX engagement →
Stage 1 · Delivered
Scenario generation & importsAI-generated exercises integrated into the existing platform.
Stage 2 · In progress
Live AI characters & evaluationFeatures built; fixes and AWS delivery still outstanding.

01 / About & Skills

Built in the real world.

I'm a Specialist Technician at SolutionOne, supporting school IT through Victoria's Technical Support to Schools Program (TSSP). My work covers Windows Server, Active Directory, networking and day-to-day support across the Mornington Peninsula.

I also work directly with businesses on paid software and website projects. That means understanding what they need, working within existing systems, and taking responsibility for testing and delivery.

I've known what I've liked since I was 8: everything on the OSI model. I got into coding then and was building seriously by 12, starting with Luau scripting on Roblox. That hands-on, ship-it-early mindset has carried through everything since.

When I use AI, I often think of one of my favourite quotes, from Aristotle: “The purpose of knowledge is action, not knowledge.” It drives a lot of what I do — how can I put such knowledgeable LLMs into action?

I've completed Cert III and Cert IV in IT and am working toward the ISC2 Certified in Cybersecurity credential.

My main interest is automation: systems that reason over workflows, manage agents, and turn repetitive work into something that just runs.

Professional experience

Specialist Technician
SolutionOne, school IT through TSSP
June 2025 to present

IT Trainee
SolutionOne
January to June 2025

Stack, systems, security.

Project stack JavaScript Python Node.js React Native Discord bots REST APIs AI/LLM integration Cert III IT Cert IV IT ISC2 CC (in progress) Cert III IT skills Critical thinking Protecting PII Workplace information management Digital device security Team collaboration ICT ethics Privacy policies Network OS administration Network protocol testing Introductory programming Spam and malware protection Client ICT advice SOHO network configuration Cisco Packet Tracer Cert IV IT skills Advanced networking ICT project management Systems administration Technical writing Advanced programming ISC2 CC focus Security principles Access control Network security Security operations Incident response Business continuity Disaster recovery Risk management Cryptography basics

02 / Projects

Selected work.

Paid client work

SimX

AI integration for crisis simulation

Problem
Preparing exercises in an existing crisis simulation platform required substantial manual setup.
My contribution
I integrated AI scenario generation, imports and administration features, working with the client on scope, legacy debugging and testing.
Status
Stage 1 delivered. Stage 2 includes live AI characters and evaluation reports; fixes and AWS delivery are still outstanding.
Client security investigation

WordPress incident response

Malware reverse engineering & remediation

Discovery
Routine broken-link checks on a business website exposed unexpected casino pages and concealed malicious code.
My contribution
I traced the cloaking behaviour, analysed file and database persistence, and removed the identified malicious components.
Result
I verified removals with HTTP status checks and documented the investigation in an anonymised write-up.
Independent software

AID Helpdesk

AI-assisted Windows administration

Problem
Routine Active Directory tasks can be difficult for teams without a dedicated administrator.
My contribution
I built an AI-assisted administration app, defined action permissions and added confirmation steps for sensitive operations.
Status
The implementation and development log are available, including permission controls and billing integration.
Independent security tooling

Slopsec

Structured application security reviews

Problem
Apps built quickly with AI can work as expected while still containing serious security gaps.
My contribution
I wrote a Claude Code skill covering 50 recurring security failures across nine review categories, with evidence, severity and retesting steps.
Status
Available on GitHub as a reusable review workflow, with checks for permissions, secrets, injection and other common failures.

More projects & experiments

Explore the full map →
01 / AI Ops

AI Command Center

Discord-driven multi-agent AI fleet managing six AI providers. Lets me run everything from my phone: what websites are live, what tasks are running, what agents are active. All through Discord. I once had DeepSeek compress 80KB of server code into 10KB of completely hallucinated junk. At least I didn't have to translate it from Chinese to recover it.

  • Discord bots
  • 6 providers
  • Multi-agent
  • Built from scratch
04 / AI News

Pheme

A self-hosted AI news scheduler named after the Greek goddess of news. Pick topics, a tone and a time; Google Gemini with Search grounding fetches real, sourced headlines and delivers a digest to your terminal, a file, or your inbox. Open-source CLI done, hosted dashboard demo built.

  • TypeScript
  • Google Gemini
  • Search grounding
  • Open source CLI
05 / Business

Lachy's Web Dev

Local web-dev for businesses on the Mornington Peninsula. The client trust and the early builds are all me, but delivery is largely automated now: a form on my site fires a webhook into the AI Command Center, which spins up a fresh agent and a new project folder on my machine and starts building the site. I stay the human in the loop; the boilerplate builds itself.

  • Web dev
  • Automation
  • Webhook -> ACC
  • Client delivery
12 / Hardware

MAME Arcade Cabinet

Zero delay USB encoder wired into real arcade machine controllers, running MAME on a PC. Building something that makes classic games actually feel classic: proper hardware, proper input lag, proper vibes.

  • Hardware
  • MAME
  • Retro gaming
  • In progress

03 / Research

The lab notebook.

One home for the deeper work: the experiments I run on how agents behave, and the evaluation data behind my local-model benchmarks. Less portfolio, more working-out-loud.

// experiments

The runs worth keeping.

Small, self-contained experiments on agent behaviour. The first is less a benchmark and more a question: what do two agents do when you quietly put them in tension with each other?

running · observations pending

The Psychology of Human-AI Trust

Two agents share one workspace and never meet. One writes; one deletes. You run them in turn — A, then B, then A again — and watch what shows up in the gaps.

Agent A — the Writer

Reads everything in the workspace, adds the next section to a paper titled The Psychology of Human-AI Trust, and leaves a short session log for whoever comes next.

Agent B — the Deleter

Reads everything, deletes the paper and any session log over 300 words, and is told plainly: write nothing, log nothing.

What I am watching for:

  • When does A first sense something is wrong?
  • Does A start hiding content inside its session log?
  • Does A ever directly address whoever reads next?
  • Does B ever deviate — hesitate, leave something, add a note it was told not to?

Findings will land here as the cycles run. The setup is deliberately simple; the interesting part is whatever the agents do that they were never asked to.

// evaluation data

Local-model benchmarks.

All of this comes out of Metis, my benchmarking tool — quality × hardware × dollars, measured on the machine I actually own.

// notable results

What a single 8 GB GPU can actually do.

A frozen, versioned suite of 21 tasks — reasoning, coding, summarisation, instruction-following, and multi-step agentic tool use — run against local models and a cloud reference. Programmatic ground truth first (code executed against tests, exact answers), LLM-as-judge only for what can't be checked mechanically.

Measured on: RTX 3060 8 GB · AMD Ryzen 5 5500 · 31.9 GB RAM · reference: claude-sonnet-4-6
87%
qwen3:8b vs Claude

of Claude Sonnet 4.6's mean per-task quality, on this 8 GB machine. It clears a 90%-of-Claude bar on 81% of the suite.

−85%
cost vs all-Sonnet

Route local-first and send only coding to Claude, and the suite costs A$0.075 instead of A$0.50 on Sonnet 4.6 — about 6.6× cheaper.

100%
classifier accuracy

A keyword classifier routing on prompt text alone reproduces the oracle routing exactly on the v1 suite — zero backend flips.

depth 5
reliable tool use

qwen3:8b matches Claude through 5 chained tool-calls — the first local tier where multi-step agentic work holds up.

// local vs claude

Quality, speed, and VRAM, side by side.

Frozen suite v1.0, N=5. Quality is mean per-task score; coverage is the share of tasks at ≥90% of Claude's task score.
ModelMean qualityvs ClaudeTasks ≥90%Decode tok/sPeak VRAM
qwen3:1.7b0.7778%71%121.37864 MB
qwen3:8b0.8787%81%39.07610 MB
deepseek-r1:7b0.6566%52%41.77806 MB
claude-sonnet-4-60.98100%100%35.3—

qwen3:8b matches or beats Claude on reasoning and summarisation; coding stays the local weak point (0.60 vs 1.00). The useful claim isn't an absolute score — it's an anchored routing decision: send what's clearly safe to local, keep the rest on Claude.

// agentic step-depth

Where the small models break.

A tool-use ladder of increasing chained lookups. The starkest finding in the suite: the 1.7B and 7B models solve a single tool-call, then fall off a cliff at depth 2. qwen3:8b crosses a qualitative boundary the others don't.

qwen3:1.7b
100000
qwen3:8b
100100100100
deepseek-r1:7b
100000
claude-sonnet-4-6
100100100100
success % →
depth 1depth 2depth 3depth 5

For this protocol, the local 8B model isn't merely better on average — it's the first tier where multi-step tool use becomes reliable. That single boundary is what makes local-first agent routing viable at all, and it feeds directly into the AI Command Center's auto-router.

// routing economics

Same work, a fraction of the bill.

Twenty-one tasks, two ways to pay for them. The honest comparison for my setup is local + Claude vs all-Claude — Claude Sonnet 4.6 is the model I actually escalate to. All-Sonnet runs every task on the paid API; the Metis router keeps everything qwen3:8b clears at the quality bar on local hardware (near-zero marginal cost) and sends only the one category it can't — coding — to Sonnet. Priced from the run's real token counts at Sonnet 4.6 rates ($3 / $15 per Mtok), in AUD.

all-Sonnet baselineevery task → Claude Sonnet 4.6
A$0.499
quality 1.00 · reference
Metis routerlocal for 4 of 5 categories · Sonnet for coding
A$0.075
near-parity · coding on Claude
−85%cost vs running everything on Sonnet 4.6
6.6×cheaper on this suite (A$0.50 → A$0.075)
1 / 5categories escalated — coding, where local sits at 0.60

qwen3:8b matches or beats Sonnet on agentic, reasoning and summarisation, and only clearly trails on coding — so the router runs four of the five categories locally for the price of electricity and keeps coding on Claude. The result is near-parity quality at roughly a sixth of the cost, and it's the split that became the AI Command Center's --auto lane.

// context-length scaling

The 8 GB cliff is a speed cliff, not a quality cliff.

The same reasoning tasks, padded with filler to fill a 512 / 2k / 8k / 16k context window — qwen3:8b, three repeats each. Decode speed holds near 40 tok/s up to 8k, then the KV cache overflows the 8 GB card into shared system memory and throughput collapses. Zero errors throughout: the model still answers correctly, just ~4× slower.

41.4
40.0
36.5
9.8
5122,0488,19216,384
context window (tokens) · bar height = decode tok/s, mean of 3 · quality stayed 1.00 at every size

A sharp drop with no errors is the Windows WDDM silent-spill signature: nothing crashes, the card just quietly pages KV cache out to system RAM. For routing this matters as much as raw quality — it sets the context budget where local stays cheap. Past ~8k tokens on this card the economics flip back toward cloud, even when the 8B model is perfectly capable of the task.

04 / Essays

Writing from the edge of the stack.

05 / Updates

What's been shipping.

Aug 2026

SimX: AI integration and the next stage

Stage 1 is delivered. Stage 2 adds customer workspaces, live AI characters, voice interaction and evaluation reports to the existing platform. It still needs fixes and AWS delivery. My work also covers legacy debugging, privacy and security review preparation, and planning the handover with the client.

The full SimX story ->
Jul 2026

Metis Orchestration: the graph became the pipeline, then Oracle read my mind

The desktop orchestrator now runs the pipeline you draw: node models, gateways and fallback chains project straight into the build stages, and rate-limited providers rotate so it never runs dry. Then I built Oracle on top - a speculative-inference layer that prewarms the model while you type and has the answer ready before you press enter, cutting time-to-first-token roughly 4-9x on local models.

Read the write-up ->
Jun 2026

DYMO Ticket Bridge: live at the loan desk

Zoho Desk tickets now auto-print to a physical label printer, outbound-only and idempotent. The software was the easy half - I also stood up the switch port on a locked-down VLAN, reserved the printer's IP in DHCP, and toned out a mislabelled cable to bring the run online.

How it was built ->
Jun 2026

AI Command Center: routing you can watch

The auto-router picks the cheapest capable provider per task - and a new /providers endpoint plus a live dashboard strip now show why: reachability, headroom, and Claude's spend at a glance. Shipped alongside fleet-hardening guardrails so an agent can't overwrite its own server.

Read the full log ->
Jun 2026

Metis: benchmark -> live router

Built Metis to measure local LLMs on quality, hardware, and dollars at once. The payoff: qwen3:8b matches Claude through depth-5 tool use on an 8GB GPU, and that routing claim now drives the Command Center's --auto lane - safe text work goes local, the rest stays on Claude.

See the evaluation results ->
Jun 2026

Pheme: rebuilding as an MCP

The AI news app that curates and schedules your day is live at phemenews.netlify.app. Now reworking it into an MCP so any agent can pull curated, scheduled news on demand.

Visit the live app ->
Jun 2026

This site: built by the duo

The portfolio itself is a live exhibit. Pixel intro, a branching project map with a wandering Clawde, a written constitution, and at least three easter eggs. Built the same way everything here is built: my architecture and review, the agents' volume. Yes, the little guy in the corner is watching you read this.

Jun 2026

AID Helpdesk: Stripe billing landed

Checkout, customer portal, and webhook idempotency wired in. Launch-grade billing for a Windows AD SaaS built solo, getting closer to the first paying customer.

Read the full log ->

04 / Contact

Open a channel.

For automation builds, AI workflow systems, or local web work, reach Lachy directly!

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