Skip to content
In use at NSi4

Tycho

An IDE where AI agents do the work, inside rails you set.

Tycho is the environment NSi4 builds with. Agents plan, edit, build and test against real codebases, with their permissions and project context fixed before the first message.

Register interest See the evidence
Tycho: the session with its executor, tool calls and the 1280 pixel capture of the changed page.
  • Session. The executor and its model, with tokens and cost.
  • Tool calls. A failed build, the fix, and the build that passed.
  • Preview. The page the agent changed, captured at 1280 px.

01 Problem

Chat assistants forget, and can't be trusted with a real codebase.

A chat window loses its context when it closes, runs every tool with the same permissions, and has no safe place to execute a command. That is fine for a snippet. It is not how you change a production system.

02 Constraints

What the agent must never lose.

The conversation lives in one remote session. The desktop app only projects it, so a crash or restart resumes the same workspace instead of starting over.

Every run starts from a composed skill stack that fixes the agent's persona, tools and project context before the first message. The agent's terminal is an isolated PowerShell process, never the user's own shell.

03 What We Built

An IDE shaped around the agent.

Four parts carry an agent's turn from plan to proof: the loop, its tools, the workspace and the terminal it drives.

Orchestration

A turn loop that streams responses, runs tools and records every turn to a trace.

Tooling

Code analysis over Roslyn with semantic search, guarded SQL, AliveMD documents and sandboxed files.

Shell

A docked desktop workspace whose panel layout is saved per project.

Terminal

An out-of-process PowerShell the agent drives, with every output stream captured.

04 Evidence

It is building the page you are reading.

This website's redesign is executed by Tycho agents against tasks in AliveMD. Every change is filed with its evidence and checked before it is accepted.

Tycho's session column: the executor, the approach 13 of 13 and each step's tool calls.
  • Executor. The role and model working the task.
  • Approach. The agent's plan: 13 of 13 steps done.
  • Steps. Each step's tool calls, failures included.

One task, start to finish

[REAL SESSION TO CAPTURE]

▸ claim task [TASK ID] · [TASK TITLE] ok
▸ read file [PAGE FILE] ok
▸ edit file [PAGE FILE] · [+N −N] ok
▸ dotnet build [PROJECT] ok
▸ capture pages [ROUTE] at 1280 and 375 px ok
▸ file result acceptance [N] of [N] checked fits
[N]tasks Executed by Tycho agents on this redesign AliveMD · this site's plan · [DATE]
[N]commits Each one checked against its task before it was accepted Git · nsi4.com · [DATE]

05 Stack

What it runs on.

Shell
WPF host · Blazor WebView panels · AvalonDock
Code analysis
Roslyn · ONNX embeddings for semantic search
Terminal
Out-of-process pwsh over named pipes
Works with
AliveMD for plans, tasks and project context
Updates
Velopack
Status
In use at NSi4 · not publicly available

Interest

Want Tycho for your team?

Tycho is not publicly available. Tell us what you would build with it and we'll get in touch.

Register interest contact@nsi4.com