One workspace. Your models. From idea to working app.
Describe what you want built. Your AI team researches it, designs it, builds it and checks it, in one conversation.
Example brief: “Build a project tracker for my small agency, with tasks, deadlines and a client dashboard.”
Illustration: four dark glass layers stacked into one closed block: the sample project before any work has started.
Build a project tracker for my small agency, with tasks, deadlines and a client dashboard.
Research with real sources.
The research model reads the web and turns your brief into requirements, citing the sources it actually found.
Sources come from the search tool’s own results; a finding without one is marked unsupported.
Illustration: the top layer lifts off the block as requirements.md, written by GPT-6.1 Sol, with three source addresses beside it.
requirements.mdResearch · GPT-6.1 Sol
- Tasks have an owner, a client and a due date
- Overdue tasks are flagged
- Client dashboard shows progress per client
- agency-ops.example/deadlines
- pm-notes.example/clients
- tracker.example/patterns
A plan before any code.
The design model lays out the screens, states and labels. A second model can review it before anything is built.
Questions and decisions stay with the project, so the plan explains itself.
Illustration: a second layer separates, showing the Agency projects screen as a half-finished wireframe by Gemini 4 Argon, with the question “Group tasks by client?” linked to the requirements.
requirements.mdResearch · GPT-6.1 Sol
- Tasks have an owner, a client and a due date
- Overdue tasks are flagged
- Client dashboard shows progress per client
Agency projectsDesign · Gemini 4 Argon
This weekOverdueAll tasks
- Logo refresh · Marek · Fri
- Site copy v2 · Ivy · Mon
- Onboard client · Ana · Wed
Group tasks by client?
Built in an isolated sandbox.
The engineering model writes the database, the API and the interface in a sandbox that holds none of your keys.
Generated code only ever runs in isolated sandboxes, never on TGTHR’s own servers.
Illustration: the block fully separated into four layers: requirements, interface, API routes and database tables, with a short code change by Claude Opus 5.5.
requirements
interface
api/api/tasks /api/clients /api/projects
databaseclients · projects · tasks
tasks.service.tsEngineering · Claude Opus 5.5
const isOverdue = (t: Task) => - t.due < now + t.due < now && + t.status !== 'done'
Checked by TGTHR, not by the models.
A separate browser runs the acceptance checks against the running app. Nothing is called done until the required checks pass.
Failures go back to the engineering model to fix, and the checks run again.
Illustration: a thin plane of light rests on the interface layer of the separated stack while the sample app’s eight checks run.
ChecksTGTHR
- Every route responds
- Pages render without errors
- No sideways scrolling on mobile
- Create a task
- Filter: This week
- Overdue tasks flagged
- Tasks grouped by client
- Build matches the tested version
8 of 8 checks passed
Your app, running.
Preview it beside the chat, ask for changes and download the source.
Each provider bills the API account behind its key. TGTHR adds no plan of its own.
Illustration: the layers close and turn into a browser window showing the Agency projects tracker: nine open tasks across three clients.
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