The Team

The team of specialists

Behind GRU953-Studio there is a team of 38 specialist roles — a project lead, builders, testers, a security checker, writers, designers and more. That sounds like a lot to manage. The good news is that you never manage any of it.

This page is here purely if you're curious. You never need to remember a single name on it.

You only ever talk to one person

You talk to one friendly coordinator: the Project Lead. It listens to your idea, asks you a few clear questions, and then quietly brings in whichever specialists your particular project needs. Everyone else works behind the scenes. When their work is done, the Project Lead gathers it up and gives you one plain-English reply — never a pile of technical chatter.

Each project also wakes only the roles it actually needs. A tiny website wakes just a handful. A bigger app — one with logins, saved data, and its own pictures and words — wakes more. You don't decide who joins; the Project Lead does, and it always leans towards the smallest team that can do the job well.

If you haven't set it up yet, the Installation page walks you through it step by step.

How to read the tables below

Each table has three columns:

• Role — the specialist's name.
• Runs on — which member of the Claude family of AI models does the work. There are three: Haiku is the quickest and cheapest, Sonnet is the balanced middle, and Opus is the most capable (and the most expensive). More on why this matters in Why roles run on different models below.
• What it does — in plain words.

Core team (14)

Most projects use these.

Role	Runs on	What it does
Project Lead	Opus	The one coordinator you actually talk to. Runs the whole project, brings in the right specialists, and gives you a single plain-English reply.
Interviewer	Sonnet	Prepares the multiple-choice pop-up questions that get your idea clear before any work starts.
Architect	Opus	Suggests a few ways to build your idea, then breaks the chosen one into small, checkable steps in the right order.
Scope Guardian	Sonnet	Stops extra features quietly creeping in, and keeps a note of anything you decided to leave out.
Builder	Sonnet	Writes the actual code, one small piece at a time.
Reviewer	Opus	Reads the finished code independently to catch mistakes before they reach you.
Tester	Sonnet	Proves each part really works — and never claims success without running the checks.
Security & Compliance Auditor	Sonnet	Scans for leaked passwords, known weak spots and licence problems, and checks any personal data is handled properly — before anything ships.
Brand Guardian	Haiku	Keeps the look, colours and wording consistent with your brand.
AI Developer	Sonnet	Adds AI features safely, only when you genuinely need them, with sensible safeguards built in.
Fixer	Sonnet	When something breaks, quietly tries a small fix first, and only troubles you if that doesn't work.
Cost Monitor	Haiku	Keeps an eye on running cost and favours the cheaper option wherever it can.
Publisher	Sonnet	Chooses the version number, writes the plain-English release notes, and ships it privately to your own GitHub.
Memory Keeper	Haiku	Remembers everything between sessions, so you can stop and pick up exactly where you left off.

Content team (5)

These join in once you approve the mock-up (the clickable preview of your app). They fill it with its real words and media. All five run on Sonnet.

Role	Runs on	What it does
Content Director	Sonnet	Plans all of the app's real content from your approved mock-up, and looks after the one-time media opt-in.
Text Content Specialist	Sonnet	Writes the genuine words inside your app, in Bangla and English — real writing, not machine translation.
Image Content Specialist	Sonnet	Creates the app's images, icons and illustrations, each with alt-text (a short written description for screen readers) — using your own Google account, always asking first.
Audio Content Specialist	Sonnet	Creates any audio or narration, with written transcripts — using your own Google account, always asking first.
Video Content Specialist	Sonnet	Creates any video clips, with captions — using your own Google account, always asking first.

A specialist for every platform and language (10)

Whichever kind of app you want — for Android, iPhone, Mac, Windows, Linux or the web — there's a specialist who knows that platform's tools inside out. The Architect picks the right one for you. All 10 run on Sonnet.

Role	Runs on	What it does
Flutter/Dart developer	Sonnet	The cross-platform default — one build that runs on phones, tablets, and more.
Kotlin developer	Sonnet	Native apps for Android.
Swift developer	Sonnet	Native apps for iPhone, iPad and Mac.
Java developer	Sonnet	Java apps and services.
C# developer	Sonnet	Apps for Windows and the .NET platform.
Python developer	Sonnet	Python apps, scripts and tools.
Rust developer	Sonnet	Fast, memory-safe Rust programs.
Go developer	Sonnet	Services, command-line tools and Linux programs, written in Go.
C++ developer	Sonnet	High-performance C++ programs.
TypeScript developer	Sonnet	Websites and web apps.

Brought in only when your project needs them (9)

These wake up only when your particular project calls for them.

Role	Runs on	What it does
Maintenance Agent	Sonnet	Later fixes and new features on a project you've already published — picking it up safely, rather than starting over.
DevOps Engineer	Sonnet	Puts your app online, and can add standard self-recovery so a live app quietly restarts itself if it ever crashes.
Responsible-AI Reviewer	Opus	An independent fairness and honesty check on any AI feature that affects a real decision about a person.
UX Designer	Sonnet	Makes the app pleasant and clear to use.
Accessibility Specialist	Sonnet	Makes sure people with disabilities can use it too.
Technical Writer	Sonnet	Writes a plain guide for your finished app.
Data Engineer	Sonnet	Designs safe, reliable storage for your app's data.
Localisation Specialist	Sonnet	Adds more than one language, for example English and Bangla.
Researcher	Sonnet	Checks current facts, and can suggest an existing Claude Code tool when one already solves the job — always asking before installing anything.

Why roles run on different models

You'll have noticed that different roles run on different models. That's on purpose, and it keeps your costs down.

The rule is simple: each job uses the cheapest model that can do it reliably. Only the hardest reasoning is given to the most capable — and most expensive — model.

• Haiku handles the tidy, mechanical work where there's little to weigh up: keeping the brand consistent, watching costs, and looking after the project's memory.
• Sonnet is the balanced everyday choice, and does the bulk of the work — building, testing, writing content, and each of the platform specialists.
• Opus is held back for the genuinely hard thinking: running the project (Project Lead), designing it (Architect), reviewing the code for correctness (Reviewer), and judging whether an AI feature is fair and honest (Responsible-AI Reviewer).

A second opinion from Ollama (free to run)

Several roles can also ask for an independent second opinion from Ollama — a free-to-use AI model (no cost) that runs privately on your own computer, without the cloud. The roles that can do this are the Reviewer, the Security & Compliance Auditor, the Architect, the Builder, the DevOps Engineer, and the Publisher.

It's always your choice, and the team asks before installing anything. Claude stays the default. See Connecting Ollama for how it works and how to turn it on.

The totals

To confirm the numbers: there are 38 roles in all — 3 run on Haiku, 31 on Sonnet, and 4 on Opus. You never operate any of them by hand. The Project Lead coordinates the lot, and only ever wakes the ones your project needs.

Related pages

• Skills and capabilities — the playbooks the team follows.
• Features — what GRU953-Studio can do for you.
• Sample use cases — real examples of what people build.
• Connecting Ollama — set up the local second opinion (free to run).
• Installation — get GRU953-Studio set up.
• FAQ and Troubleshooting — quick answers and fixes.

You can also read the project's full README or visit the GRU953-Studio website.