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NSi4 · Engineering studio

We build software that runs with real stakes.

A trading system on our own capital. A raid platform tested with a mythic guild every progression night. The AI tooling we build everything else with. Five products, built and run in-house.

Contact us See the products
The task document from AliveMD beside Tycho's session: the executor, its approach and the completed steps.
  • Task. The task the agent was given, from AliveMD.
  • Agent. Tycho working the task: its approach and each step.
  • Proof. Every step marked complete, with the build it ran.
100,000+/s Trading decisions Trinity makes, on NSi4's own capital NSi4 internal counts, Trinity
2×Hall of Fame Mythic raiding since 2016 with RETRY, WRS's test guild: Queen Ansurek 2024, Chimaerus 2026 Blizzard Armory · RETRY, Tarren Mill (EU)
[N]tasks Executed by Tycho agents on this redesign AliveMD · this site's plan · [DATE]

Products

Each one is a case study you can check.

Every product page shows the problem, the constraints we worked under, what we built and the evidence it works.

WRS plan setup: boss columns across the raid roster, each raider marked IN or OUT.
Alpha

WRS

Raid planning, assignments and review for World of Warcraft guilds, with the addon in the loop.

Tested with RETRY every progression night Read the case study One Trinity market-data recorder card with its 24-hour file production strip; symbols, venues and hostnames redacted.
In production

Trinity

High-frequency arbitrage that trades NSi4's own capital around the clock.

100,000+ decisions per second Read the case study The fromScratch Porto bakery canvas: the vision line over the plan's first two levels.
In development

fromScratch

Project management where people and AI experts plan and deliver together.

[PROOF LINE] Read the case study A Tycho session's middle column: completed steps and the tool calls between them, including a failed build.
In use at NSi4

Tycho

The AI-native IDE the studio builds with. Agents work real codebases inside rails you set.

Builds this website Read the case study The AliveMD dashboard's recent activity column, each entry with its status chip.
In use at NSi4

AliveMD

A document store where plans, tasks and the agents executing them share one state machine.

Runs NSi4's own engineering work Read the case study

How we build

Specified, executed by agents, verified by hand.

  1. 01 Specify

    Every change starts as a task in AliveMD

    Scope, the facts it rests on, the spec and the checks that prove it done, written before any code.

  2. 02 Execute

    Tycho agents do the work

    An agent claims the task, works the codebase with the tools its role allows, and files what it did.

  3. 03 Verify

    Nothing ships on the agent's word

    Each result is checked against the artifact itself: the diff, the running page, the numbers.

An AliveMD task with its acceptance checklist ticked and the verification log beneath.
  • Acceptance. Each check written before the work started.
  • Log. What the agent did, and what was verified after.

Contact

Partnerships, investment or press: write to the studio.

Contact us contact@nsi4.com