Beunec

Rivine Engines

Rivine Code

Rivine Code is the Aselius engine that builds real, working software, not a plan or a list of commands. Describe what you need and it writes the files, installs and runs them when possible, checks the result and hands you a live preview or a downloadable project.

At a glance

What it is
The software engineering engine in Aselius Workspace, chosen in the Taskspace input bar.
Best for
New builds, surgical fixes, code review and security fixes in any stack.
You get
Real files, verified by running them, with a live preview or a download.
Controls
A Mode that scopes what can change and a Rate that sets how changes land.
Cost
Needs a prepaid balance of at least $10 to start a turn, on every plan.
Where
In a Taskspace on aselius.beunec.com, or in your terminal with the Rivine Code CLI.

In the product

Real screenshots of what this page describes. Open any of them full size.

What happens to a request

Figure: what happens between your request and a working result.

Changes stay surgical: fixing one thing does not regenerate the whole project.

Mode and Rate

Every Rivine Code turn starts with two choices, both visible in the input bar before you send a message.

Mode decides what kind of work runs:

ModeWhat it's for
Frontend OnlyUI, styling, client-side logic; leaves your backend and infrastructure alone
Backend OnlyAPIs, services, data layer; leaves your UI alone
Full StackA build that genuinely spans both, end to end
Plan / Ask OnlyRead your code and answer, propose an approach, or review, without writing anything
Security Scan / FixFinds and fixes real vulnerabilities in the code you already have

Rate decides how changes get applied:

RateWhat happens
ManualEach meaningful change is shown to you before it lands, so you control what touches your project
BypassChanges apply as the engine works, for speed over a review step on every edit

Figure: Mode scopes what can change; Rate scopes how changes land.

A narrow Mode is a safeguard, not a limitation. It keeps a "fix the login bug" request from touching your database schema, because the engine only gets access to what the Mode says the task needs.

Verified before it reaches you

Software that "looks right" but silently breaks something else is a production incident waiting to happen. Rivine Code installs dependencies, runs the project and checks the result before handing anything back. That holds whether you are a solo founder shipping an MVP or a team integrating a generated service into a production stack.

Who uses Rivine Code

WhoTypical work
Software engineering teamsDebugging, security review and multi-service prototypes across any stack
Startup teamsMVPs and landing pages built and previewed end to end before showing investors
Consulting firmsInternal client dashboards built from real data exports
Research organizationsSimulation pipelines and data-processing tools, benchmarked against existing implementations
University post-graduatesData-analysis scripts and research tooling prototypes

Example prompts

PersonaExample prompt
Startup team"Build a Next.js + Supabase landing page with waitlist signup and email capture, and show me a live preview."
Software engineering team"Debug this failing FastAPI endpoint using the attached traceback and fix it in place."
University post-graduate"Build a Python script to clean and merge these three CSV datasets for my thesis analysis."
Consulting firm"Prototype a React + Node.js + MongoDB internal dashboard that visualizes this client's operational KPIs from the attached data export."
Startup team"Build a Go backend service that exposes a REST API for our inventory system, with tests, and show me it running."
Software engineering team"Security-review this authentication flow across our Node.js and PostgreSQL services and fix any injection or session vulnerabilities you find."
University post-graduate"Build a Flutter mobile app prototype for my research project's participant data-collection tool, with offline support."
Startup team"Build a Vue + Django + PostgreSQL MVP for our new marketplace idea, end to end, and let me test it in the live preview before I show investors."
Research organization"Build a Rust service that runs our simulation pipeline faster than our current Python implementation, and benchmark both."
Software engineering team"Migrate this legacy PHP/Laravel service to a Next.js + FastAPI + PostgreSQL stack, keep the API contract identical, and verify with the existing test suite."

Limits

  • Not schedulable. Rivine Code runs interactively; it cannot be set up as an automation.
  • Not exposed through Aselius MCP. Use it in a Taskspace or through the CLI.
  • Start floor. A turn needs a balance of at least $10, the same on every plan.

Also available: the terminal

The Rivine Code CLI runs the same engine in any local project, working on the files already on your disk instead of a workspace sandbox. See the Rivine Code CLI guide.

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